21st Century Products Wiki - User contributions [en]

EEDEHD Medium-Power 4+ Inductive Loads Driver IC

2022-05-16T05:34:06Z

21stCP Wiki BDFL:

=== Introduction ===
The objective of this article is to find an IC which can switch 4+ of medium-power inductive loads.

Loads may be stepper motors, DC motors, or solenoids, at user's discretion.

The IC must have the following features:

4+ of independent half-bridge outputs, preferably at least two splittable full bridges / four independent half bridges in same package.

ALL outputs MUST not modify or invert logic of inputs, for any combination of inputs. See issues with motor control ICs with "brake" function.

100mA minimum drive capability per output channel, 0.5A+ desired.

5V-12V+ load side supply voltage.

Relay coil PWM throttle NOT used (for general adaptivity for any loads such as motors, not just relays).

Reasonably protected output stage for inductive loads drive capability.

Reasonably protected output stage for typical failure scenarios (short circuit, overcurrent, overvoltage, undervoltage, overtemperature, etc).

Can keep up with reasonable PWM waveforms and frequencies.

Not a package I hate (FN, BGA, etc).

A package which can dissipate realistic amount of waste heat with REAL loads being switched at reasonable speeds.

High-side switches NOT NMOS (as this requires costly, limited, and noisy charge pump circuitry inside the IC or external to it).

Surface-mount.

Affordable.

The following DigiKey categories have been parsed:

Interface - Drivers, Receivers, Transceivers (No current rating provided)

Interface - Signal Buffers, Repeaters, Splitters (No current rating provided)

Logic - Buffers, Drivers, Receivers, Transceivers (NOTHING THERE WITH CURRENT CAPABILITY)

Logic - Gates and Inverters (NOTHING THERE WITH CURRENT CAPABILITY)

PMIC - Full, Half-Bridge Drivers (PARSED)

PMIC - Gate Drivers

PMIC - Motor Drivers, Controllers (FINISHING PARSE)

=== PMIC - Full, Half-Bridge Drivers ===
Half Bridge (4x):

[https://www.digikey.com/en/products/filter/pmic-full-half-bridge-drivers/746?s=N4IgjCBcpgbFoDGUBmBDANgZwKYBoQB7KAbRAHYAWAZgE5aQCrLKAORkW861gBg7A1yYCATABWcb1rwx42gCZqo8LHHdZq9VwFdeYfgQULe44yAC6BAA4AXKCADKtgE4BLAHYBzEAF8CsAzQIMiQ6Nj4RKQglNJ01JY29pBOrp4%2B-uDilAghqJi4BMSQZMo84uwE1HQSChzUsLDkvAlVjVR1VbQGZokgdg7O7t5%2BRpK5oeGFUSUg1GaU3PUL5OTLCmz8Vv3JqcMZBJS0OcGTBZHFZCpKTdQ5Rg3ktIYgG8q0ra%2BSrOKfCrA3SqvcgKWjia6sAFKDgKSEbBhGZ5Pa70CTiARgLhSDiUSTyHGsairDhSZ4vMysEQk4wmElSSgqbIsNYEdQ0T7yJSfODkeT3cAKKTNASgyEs8DKX4qMDVWJAmWwXi8fkmCTHATkRVUDUgtQwhTCRQw3iK8ZGUw-P7SA0vDarE0wsrEh6wpok6Qg8X-AGwa5mGSdECkkFA2G8Zqhj4glWEwkIubK1j0DjRhkp%2BTZDiQ1j-LMmXEcGSNaW8QVUsQSVisfmCfPxysNbmEo5NymweXdTXcj45l6Y%2Bg-GGCOgqsCrJND55m14mG76zGUQPGaiw65Eqh-GhqFXiYvXDTl4HkH4x5oVDjtqRbJKDNIjTKrOqnfIRIrROiwI4CBr-L2wqjXCaHyAZCEjGmKIGBH8BjVkuLa9A8ZTXE0Uh-GC-zXjst77KM4C0BOz5hOcb6zJhAwpEM6R%2BJk8DBG4AAmDgALQGIG5EgBwACOtgAJ4OCovHWDgDj0VgyC%2BL4QA Starting filter criteria] (24 products left).

After L298 is disqualified for being too expensive and outdated, NO ICs remain! WTF???

Half Bridge (2x):

With the possible exception of ST VN5772AK (how do high-side MOSFETs get powered? Why hard to source), same shit, ICs either implement Braking on H, H input signals combination, OR use High-Side NMOS switches with an internal charge pump. WHAT THE FUCK DigiKey, all of these ICs should be in Motor Controllers section!!!

TODO DOC WTF ONSEMI DATASHEETS LINKS FROM DK ARE NOT WORKING???

=== PMIC - Motor Drivers, Controllers ===
Half Bridge (4, 8x):

With the exception of Allegro A4970 (TODO VERIFY), same shit as in other section; ICs either implement Braking on H, H input signals combination, OR use High-Side NMOS switches with an internal charge pump.

EEDEHD Medium-Power 4+ Inductive Loads Driver IC

2022-05-16T05:33:19Z

21stCP Wiki BDFL:

=== Introduction ===
The objective of this article is to find an IC which can switch 4+ of medium-power inductive loads.

Loads may be stepper motors, DC motors, or solenoids, at user's discretion.

The IC must have the following features:

4+ of independent half-bridge outputs, preferably at least two splittable full bridges / four independent half bridges in same package.

ALL outputs MUST not modify or invert logic of inputs, for any combination of inputs. See issues with motor control ICs with "brake" function.

100mA minimum drive capability per output channel, 0.5A+ desired.

5V-12V+ load side supply voltage.

Relay coil PWM throttle NOT used (for general adaptivity for any loads such as motors, not just relays).

Reasonably protected output stage for inductive loads drive capability.

Reasonably protected output stage for typical failure scenarios (short circuit, overcurrent, overvoltage, undervoltage, overtemperature, etc).

Can keep up with reasonable PWM waveforms and frequencies.

Not a package I hate (FN, BGA, etc).

A package which can dissipate realistic amount of waste heat with REAL loads being switched at reasonable speeds.

High-side switches NOT NMOS (as this requires costly, limited, and noisy charge pump circuitry inside the IC or external to it).

Surface-mount.

Affordable.

The following DigiKey categories have been parsed:

Interface - Drivers, Receivers, Transceivers (No current rating provided)

Interface - Signal Buffers, Repeaters, Splitters

Logic - Buffers, Drivers, Receivers, Transceivers (NOTHING THERE WITH CURRENT CAPABILITY)

Logic - Gates and Inverters (NOTHING THERE WITH CURRENT CAPABILITY)

PMIC - Full, Half-Bridge Drivers (PARSED)

PMIC - Gate Drivers

PMIC - Motor Drivers, Controllers (FINISHING PARSE)

=== PMIC - Full, Half-Bridge Drivers ===
Half Bridge (4x):

[https://www.digikey.com/en/products/filter/pmic-full-half-bridge-drivers/746?s=N4IgjCBcpgbFoDGUBmBDANgZwKYBoQB7KAbRAHYAWAZgE5aQCrLKAORkW861gBg7A1yYCATABWcb1rwx42gCZqo8LHHdZq9VwFdeYfgQULe44yAC6BAA4AXKCADKtgE4BLAHYBzEAF8CsAzQIMiQ6Nj4RKQglNJ01JY29pBOrp4%2B-uDilAghqJi4BMSQZMo84uwE1HQSChzUsLDkvAlVjVR1VbQGZokgdg7O7t5%2BRpK5oeGFUSUg1GaU3PUL5OTLCmz8Vv3JqcMZBJS0OcGTBZHFZCpKTdQ5Rg3ktIYgG8q0ra%2BSrOKfCrA3SqvcgKWjia6sAFKDgKSEbBhGZ5Pa70CTiARgLhSDiUSTyHGsairDhSZ4vMysEQk4wmElSSgqbIsNYEdQ0T7yJSfODkeT3cAKKTNASgyEs8DKX4qMDVWJAmWwXi8fkmCTHATkRVUDUgtQwhTCRQw3iK8ZGUw-P7SA0vDarE0wsrEh6wpok6Qg8X-AGwa5mGSdECkkFA2G8Zqhj4glWEwkIubK1j0DjRhkp%2BTZDiQ1j-LMmXEcGSNaW8QVUsQSVisfmCfPxysNbmEo5NymweXdTXcj45l6Y%2Bg-GGCOgqsCrJND55m14mG76zGUQPGaiw65Eqh-GhqFXiYvXDTl4HkH4x5oVDjtqRbJKDNIjTKrOqnfIRIrROiwI4CBr-L2wqjXCaHyAZCEjGmKIGBH8BjVkuLa9A8ZTXE0Uh-GC-zXjst77KM4C0BOz5hOcb6zJhAwpEM6R%2BJk8DBG4AAmDgALQGIG5EgBwACOtgAJ4OCovHWDgDj0VgyC%2BL4QA Starting filter criteria] (24 products left).

After L298 is disqualified for being too expensive and outdated, NO ICs remain! WTF???

Half Bridge (2x):

With the possible exception of ST VN5772AK (how do high-side MOSFETs get powered? Why hard to source), same shit, ICs either implement Braking on H, H input signals combination, OR use High-Side NMOS switches with an internal charge pump. WHAT THE FUCK DigiKey, all of these ICs should be in Motor Controllers section!!!

TODO DOC WTF ONSEMI DATASHEETS LINKS FROM DK ARE NOT WORKING???

=== PMIC - Motor Drivers, Controllers ===
Half Bridge (4, 8x):

With the exception of Allegro A4970 (TODO VERIFY), same shit as in other section; ICs either implement Braking on H, H input signals combination, OR use High-Side NMOS switches with an internal charge pump.

EEDEHD Medium-Power 4+ Inductive Loads Driver IC

2022-05-16T05:30:42Z

21stCP Wiki BDFL:

=== Introduction ===
The objective of this article is to find an IC which can switch 4+ of medium-power inductive loads.

Loads may be stepper motors, DC motors, or solenoids, at user's discretion.

The IC must have the following features:

4+ of independent half-bridge outputs, preferably at least two splittable full bridges / four independent half bridges in same package.

ALL outputs MUST not modify or invert logic of inputs, for any combination of inputs. See issues with motor control ICs with "brake" function.

100mA minimum drive capability per output channel, 0.5A+ desired.

5V-12V+ load side supply voltage.

Relay coil PWM throttle NOT used (for general adaptivity for any loads such as motors, not just relays).

Reasonably protected output stage for inductive loads drive capability.

Reasonably protected output stage for typical failure scenarios (short circuit, overcurrent, overvoltage, undervoltage, overtemperature, etc).

Can keep up with reasonable PWM waveforms and frequencies.

Not a package I hate (FN, BGA, etc).

A package which can dissipate realistic amount of waste heat with REAL loads being switched at reasonable speeds.

High-side switches NOT NMOS (as this requires costly, limited, and noisy charge pump circuitry inside the IC or external to it).

Surface-mount.

Affordable.

The following DigiKey categories have been parsed:

Interface - Drivers, Receivers, Transceivers

Interface - Signal Buffers, Repeaters, Splitters

Logic - Buffers, Drivers, Receivers, Transceivers (NOTHING THERE WITH CURRENT CAPABILITY)

Logic - Gates and Inverters

PMIC - Full, Half-Bridge Drivers (PARSED)

PMIC - Gate Drivers

PMIC - Motor Drivers, Controllers (FINISHING PARSE)

=== PMIC - Full, Half-Bridge Drivers ===
Half Bridge (4x):

[https://www.digikey.com/en/products/filter/pmic-full-half-bridge-drivers/746?s=N4IgjCBcpgbFoDGUBmBDANgZwKYBoQB7KAbRAHYAWAZgE5aQCrLKAORkW861gBg7A1yYCATABWcb1rwx42gCZqo8LHHdZq9VwFdeYfgQULe44yAC6BAA4AXKCADKtgE4BLAHYBzEAF8CsAzQIMiQ6Nj4RKQglNJ01JY29pBOrp4%2B-uDilAghqJi4BMSQZMo84uwE1HQSChzUsLDkvAlVjVR1VbQGZokgdg7O7t5%2BRpK5oeGFUSUg1GaU3PUL5OTLCmz8Vv3JqcMZBJS0OcGTBZHFZCpKTdQ5Rg3ktIYgG8q0ra%2BSrOKfCrA3SqvcgKWjia6sAFKDgKSEbBhGZ5Pa70CTiARgLhSDiUSTyHGsairDhSZ4vMysEQk4wmElSSgqbIsNYEdQ0T7yJSfODkeT3cAKKTNASgyEs8DKX4qMDVWJAmWwXi8fkmCTHATkRVUDUgtQwhTCRQw3iK8ZGUw-P7SA0vDarE0wsrEh6wpok6Qg8X-AGwa5mGSdECkkFA2G8Zqhj4glWEwkIubK1j0DjRhkp%2BTZDiQ1j-LMmXEcGSNaW8QVUsQSVisfmCfPxysNbmEo5NymweXdTXcj45l6Y%2Bg-GGCOgqsCrJND55m14mG76zGUQPGaiw65Eqh-GhqFXiYvXDTl4HkH4x5oVDjtqRbJKDNIjTKrOqnfIRIrROiwI4CBr-L2wqjXCaHyAZCEjGmKIGBH8BjVkuLa9A8ZTXE0Uh-GC-zXjst77KM4C0BOz5hOcb6zJhAwpEM6R%2BJk8DBG4AAmDgALQGIG5EgBwACOtgAJ4OCovHWDgDj0VgyC%2BL4QA Starting filter criteria] (24 products left).

After L298 is disqualified for being too expensive and outdated, NO ICs remain! WTF???

Half Bridge (2x):

With the possible exception of ST VN5772AK (how do high-side MOSFETs get powered? Why hard to source), same shit, ICs either implement Braking on H, H input signals combination, OR use High-Side NMOS switches with an internal charge pump. WHAT THE FUCK DigiKey, all of these ICs should be in Motor Controllers section!!!

TODO DOC WTF ONSEMI DATASHEETS LINKS FROM DK ARE NOT WORKING???

=== PMIC - Motor Drivers, Controllers ===
Half Bridge (4, 8x):

With the exception of Allegro A4970 (TODO VERIFY), same shit as in other section; ICs either implement Braking on H, H input signals combination, OR use High-Side NMOS switches with an internal charge pump.

EEDEHD Medium-Power 4+ Inductive Loads Driver IC

2022-05-16T05:29:15Z

21stCP Wiki BDFL:

=== Introduction ===
The objective of this article is to find an IC which can switch 4+ of medium-power inductive loads.

Loads may be stepper motors, DC motors, or solenoids, at user's discretion.

The IC must have the following features:

4+ of independent half-bridge outputs, preferably at least two splittable full bridges / four independent half bridges in same package.

ALL outputs MUST not modify or invert logic of inputs, for any combination of inputs. See issues with motor control ICs with "brake" function.

100mA minimum drive capability per output channel, 0.5A+ desired.

5V-12V+ load side supply voltage.

Relay coil PWM throttle NOT used (for general adaptivity for any loads such as motors, not just relays).

Reasonably protected output stage for inductive loads drive capability.

Reasonably protected output stage for typical failure scenarios (short circuit, overcurrent, overvoltage, undervoltage, overtemperature, etc).

Can keep up with reasonable PWM waveforms and frequencies.

Not a package I hate (FN, BGA, etc).

A package which can dissipate realistic amount of waste heat with REAL loads being switched at reasonable speeds.

High-side switches NOT NMOS (as this requires costly, limited, and noisy charge pump circuitry inside the IC or external to it).

Surface-mount.

Affordable.

The following DigiKey categories have been parsed:

Interface - Drivers, Receivers, Transceivers

Interface - Signal Buffers, Repeaters, Splitters

Logic - Buffers, Drivers, Receivers, Transceivers

Logic - Gates and Inverters

PMIC - Full, Half-Bridge Drivers (PARSED)

PMIC - Gate Drivers

PMIC - Motor Drivers, Controllers (FINISHING PARSE)

=== PMIC - Full, Half-Bridge Drivers ===
Half Bridge (4x):

[https://www.digikey.com/en/products/filter/pmic-full-half-bridge-drivers/746?s=N4IgjCBcpgbFoDGUBmBDANgZwKYBoQB7KAbRAHYAWAZgE5aQCrLKAORkW861gBg7A1yYCATABWcb1rwx42gCZqo8LHHdZq9VwFdeYfgQULe44yAC6BAA4AXKCADKtgE4BLAHYBzEAF8CsAzQIMiQ6Nj4RKQglNJ01JY29pBOrp4%2B-uDilAghqJi4BMSQZMo84uwE1HQSChzUsLDkvAlVjVR1VbQGZokgdg7O7t5%2BRpK5oeGFUSUg1GaU3PUL5OTLCmz8Vv3JqcMZBJS0OcGTBZHFZCpKTdQ5Rg3ktIYgG8q0ra%2BSrOKfCrA3SqvcgKWjia6sAFKDgKSEbBhGZ5Pa70CTiARgLhSDiUSTyHGsairDhSZ4vMysEQk4wmElSSgqbIsNYEdQ0T7yJSfODkeT3cAKKTNASgyEs8DKX4qMDVWJAmWwXi8fkmCTHATkRVUDUgtQwhTCRQw3iK8ZGUw-P7SA0vDarE0wsrEh6wpok6Qg8X-AGwa5mGSdECkkFA2G8Zqhj4glWEwkIubK1j0DjRhkp%2BTZDiQ1j-LMmXEcGSNaW8QVUsQSVisfmCfPxysNbmEo5NymweXdTXcj45l6Y%2Bg-GGCOgqsCrJND55m14mG76zGUQPGaiw65Eqh-GhqFXiYvXDTl4HkH4x5oVDjtqRbJKDNIjTKrOqnfIRIrROiwI4CBr-L2wqjXCaHyAZCEjGmKIGBH8BjVkuLa9A8ZTXE0Uh-GC-zXjst77KM4C0BOz5hOcb6zJhAwpEM6R%2BJk8DBG4AAmDgALQGIG5EgBwACOtgAJ4OCovHWDgDj0VgyC%2BL4QA Starting filter criteria] (24 products left).

After L298 is disqualified for being too expensive and outdated, NO ICs remain! WTF???

Half Bridge (2x):

With the possible exception of ST VN5772AK (how do high-side MOSFETs get powered? Why hard to source), same shit, ICs either implement Braking on H, H input signals combination, OR use High-Side NMOS switches with an internal charge pump. WHAT THE FUCK DigiKey, all of these ICs should be in Motor Controllers section!!!

TODO DOC WTF ONSEMI DATASHEETS LINKS FROM DK ARE NOT WORKING???

=== PMIC - Motor Drivers, Controllers ===
Half Bridge (4, 8x):

With the exception of Allegro A4970 (TODO VERIFY), same shit as in other section; ICs either implement Braking on H, H input signals combination, OR use High-Side NMOS switches with an internal charge pump.

EEDEHD Medium-Power 4+ Inductive Loads Driver IC

2022-05-16T03:37:36Z

21stCP Wiki BDFL:

=== Introduction ===
The objective of this article is to find an IC which can switch 4+ of medium-power inductive loads.

Loads may be stepper motors, DC motors, or solenoids, at user's discretion.

The IC must have the following features:

4+ of independent half-bridge outputs, preferably at least two splittable full bridges / four independent half bridges in same package.

ALL outputs MUST not modify or invert logic of inputs, for any combination of inputs. See issues with motor control ICs with "brake" function.

100mA minimum drive capability per output channel, 0.5A+ desired.

5V-12V+ load side supply voltage.

Relay coil PWM throttle NOT used (for general adaptivity for any loads such as motors, not just relays).

Reasonably protected output stage for inductive loads drive capability.

Reasonably protected output stage for typical failure scenarios (short circuit, overcurrent, overvoltage, undervoltage, overtemperature, etc).

Can keep up with reasonable PWM waveforms and frequencies.

Not a package I hate (FN, BGA, etc).

A package which can dissipate realistic amount of waste heat with REAL loads being switched at reasonable speeds.

High-side switches NOT NMOS (as this requires costly, limited, and noisy charge pump circuitry inside the IC or external to it).

Surface-mount.

Affordable.

The following DigiKey categories have been parsed:

Interface - Drivers, Receivers, Transceivers

Interface - Signal Buffers, Repeaters, Splitters

Logic - Buffers, Drivers, Receivers, Transceivers

Logic - Gates and Inverters

PMIC - Full, Half-Bridge Drivers

PMIC - Gate Drivers

PMIC - Motor Drivers, Controllers

=== PMIC - Full, Half-Bridge Drivers ===
Half Bridge (4x):

[https://www.digikey.com/en/products/filter/pmic-full-half-bridge-drivers/746?s=N4IgjCBcpgbFoDGUBmBDANgZwKYBoQB7KAbRAHYAWAZgE5aQCrLKAORkW861gBg7A1yYCATABWcb1rwx42gCZqo8LHHdZq9VwFdeYfgQULe44yAC6BAA4AXKCADKtgE4BLAHYBzEAF8CsAzQIMiQ6Nj4RKQglNJ01JY29pBOrp4%2B-uDilAghqJi4BMSQZMo84uwE1HQSChzUsLDkvAlVjVR1VbQGZokgdg7O7t5%2BRpK5oeGFUSUg1GaU3PUL5OTLCmz8Vv3JqcMZBJS0OcGTBZHFZCpKTdQ5Rg3ktIYgG8q0ra%2BSrOKfCrA3SqvcgKWjia6sAFKDgKSEbBhGZ5Pa70CTiARgLhSDiUSTyHGsairDhSZ4vMysEQk4wmElSSgqbIsNYEdQ0T7yJSfODkeT3cAKKTNASgyEs8DKX4qMDVWJAmWwXi8fkmCTHATkRVUDUgtQwhTCRQw3iK8ZGUw-P7SA0vDarE0wsrEh6wpok6Qg8X-AGwa5mGSdECkkFA2G8Zqhj4glWEwkIubK1j0DjRhkp%2BTZDiQ1j-LMmXEcGSNaW8QVUsQSVisfmCfPxysNbmEo5NymweXdTXcj45l6Y%2Bg-GGCOgqsCrJND55m14mG76zGUQPGaiw65Eqh-GhqFXiYvXDTl4HkH4x5oVDjtqRbJKDNIjTKrOqnfIRIrROiwI4CBr-L2wqjXCaHyAZCEjGmKIGBH8BjVkuLa9A8ZTXE0Uh-GC-zXjst77KM4C0BOz5hOcb6zJhAwpEM6R%2BJk8DBG4AAmDgALQGIG5EgBwACOtgAJ4OCovHWDgDj0VgyC%2BL4QA Starting filter criteria] (24 products left).

After L298 is disqualified for being too expensive and outdated, NO ICs remain! WTF???

Half Bridge (2x):

With the possible exception of ST VN5772AK (how do high-side MOSFETs get powered? Why hard to source), same shit, ICs either implement Braking on H, H input signals combination, OR use High-Side NMOS switches with an internal charge pump. WHAT THE FUCK DigiKey, all of these ICs should be in Motor Controllers section!!!

TODO DOC WTF ONSEMI DATASHEETS LINKS FROM DK ARE NOT WORKING???

=== PMIC - Motor Drivers, Controllers ===
Half Bridge (4, 8x):

With the exception of Allegro A4970 (TODO VERIFY), same shit as in other section; ICs either implement Braking on H, H input signals combination, OR use High-Side NMOS switches with an internal charge pump.

EEDEHD Medium-Power 4+ Inductive Loads Driver IC

2022-05-16T03:05:23Z

21stCP Wiki BDFL: /* PMIC - Full, Half-Bridge Drivers */

=== Introduction ===
The objective of this article is to find an IC which can switch 4+ of medium-power inductive loads.

Loads may be stepper motors, DC motors, or solenoids, at user's discretion.

The IC must have the following features:

4+ of independent half-bridge outputs, preferably at least two splittable full bridges / four independent half bridges in same package.

ALL outputs MUST not modify or invert logic of inputs, for any combination of inputs. See issues with motor control ICs with "brake" function.

100mA minimum drive capability per output channel, 0.5A+ desired.

5V-12V+ load side supply voltage.

Relay coil PWM throttle NOT used (for general adaptivity for any loads such as motors, not just relays).

Reasonably protected output stage for inductive loads drive capability.

Reasonably protected output stage for typical failure scenarios (short circuit, overcurrent, overvoltage, undervoltage, overtemperature, etc).

Can keep up with reasonable PWM waveforms and frequencies.

Not a package I hate (FN, BGA, etc).

A package which can dissipate realistic amount of waste heat with REAL loads being switched at reasonable speeds.

High-side switches NOT NMOS (as this requires costly, limited, and noisy charge pump circuitry inside the IC or external to it).

Surface-mount.

Affordable.

The following DigiKey categories have been parsed:

Interface - Drivers, Receivers, Transceivers

Interface - Signal Buffers, Repeaters, Splitters

Logic - Buffers, Drivers, Receivers, Transceivers

Logic - Gates and Inverters

PMIC - Full, Half-Bridge Drivers

PMIC - Gate Drivers

PMIC - Motor Drivers, Controllers

=== PMIC - Full, Half-Bridge Drivers ===
Half Bridge (4x):

[https://www.digikey.com/en/products/filter/pmic-full-half-bridge-drivers/746?s=N4IgjCBcpgbFoDGUBmBDANgZwKYBoQB7KAbRAHYAWAZgE5aQCrLKAORkW861gBg7A1yYCATABWcb1rwx42gCZqo8LHHdZq9VwFdeYfgQULe44yAC6BAA4AXKCADKtgE4BLAHYBzEAF8CsAzQIMiQ6Nj4RKQglNJ01JY29pBOrp4%2B-uDilAghqJi4BMSQZMo84uwE1HQSChzUsLDkvAlVjVR1VbQGZokgdg7O7t5%2BRpK5oeGFUSUg1GaU3PUL5OTLCmz8Vv3JqcMZBJS0OcGTBZHFZCpKTdQ5Rg3ktIYgG8q0ra%2BSrOKfCrA3SqvcgKWjia6sAFKDgKSEbBhGZ5Pa70CTiARgLhSDiUSTyHGsairDhSZ4vMysEQk4wmElSSgqbIsNYEdQ0T7yJSfODkeT3cAKKTNASgyEs8DKX4qMDVWJAmWwXi8fkmCTHATkRVUDUgtQwhTCRQw3iK8ZGUw-P7SA0vDarE0wsrEh6wpok6Qg8X-AGwa5mGSdECkkFA2G8Zqhj4glWEwkIubK1j0DjRhkp%2BTZDiQ1j-LMmXEcGSNaW8QVUsQSVisfmCfPxysNbmEo5NymweXdTXcj45l6Y%2Bg-GGCOgqsCrJND55m14mG76zGUQPGaiw65Eqh-GhqFXiYvXDTl4HkH4x5oVDjtqRbJKDNIjTKrOqnfIRIrROiwI4CBr-L2wqjXCaHyAZCEjGmKIGBH8BjVkuLa9A8ZTXE0Uh-GC-zXjst77KM4C0BOz5hOcb6zJhAwpEM6R%2BJk8DBG4AAmDgALQGIG5EgBwACOtgAJ4OCovHWDgDj0VgyC%2BL4QA Starting filter criteria] (24 products left).

After L298 is disqualified for being too expensive and outdated, NO ICs remain! WTF???

Half Bridge (2x):

With the possible exception of ST VN5772AK (how do high-side MOSFETs get powered? Why hard to source), same shit, ICs either implement Braking on H, H input signals combination, OR use High-Side NMOS switches with an internal charge pump. WHAT THE FUCK DigiKey, all of these ICs should be in Motor Controllers section!!!

TODO DOC WTF ONSEMI DATASHEETS LINKS FROM DK ARE NOT WORKING???

EEDEHD Medium-Power 4+ Inductive Loads Driver IC

2022-05-16T02:48:33Z

21stCP Wiki BDFL: /* PMIC - Full, Half-Bridge Drivers */

=== Introduction ===
The objective of this article is to find an IC which can switch 4+ of medium-power inductive loads.

Loads may be stepper motors, DC motors, or solenoids, at user's discretion.

The IC must have the following features:

4+ of independent half-bridge outputs, preferably at least two splittable full bridges / four independent half bridges in same package.

ALL outputs MUST not modify or invert logic of inputs, for any combination of inputs. See issues with motor control ICs with "brake" function.

100mA minimum drive capability per output channel, 0.5A+ desired.

5V-12V+ load side supply voltage.

Relay coil PWM throttle NOT used (for general adaptivity for any loads such as motors, not just relays).

Reasonably protected output stage for inductive loads drive capability.

Reasonably protected output stage for typical failure scenarios (short circuit, overcurrent, overvoltage, undervoltage, overtemperature, etc).

Can keep up with reasonable PWM waveforms and frequencies.

Not a package I hate (FN, BGA, etc).

A package which can dissipate realistic amount of waste heat with REAL loads being switched at reasonable speeds.

High-side switches NOT NMOS (as this requires costly, limited, and noisy charge pump circuitry inside the IC or external to it).

Surface-mount.

Affordable.

The following DigiKey categories have been parsed:

Interface - Drivers, Receivers, Transceivers

Interface - Signal Buffers, Repeaters, Splitters

Logic - Buffers, Drivers, Receivers, Transceivers

Logic - Gates and Inverters

PMIC - Full, Half-Bridge Drivers

PMIC - Gate Drivers

PMIC - Motor Drivers, Controllers

=== PMIC - Full, Half-Bridge Drivers ===
Half Bridge (4x):

[https://www.digikey.com/en/products/filter/pmic-full-half-bridge-drivers/746?s=N4IgjCBcpgbFoDGUBmBDANgZwKYBoQB7KAbRAHYAWAZgE5aQCrLKAORkW861gBg7A1yYCATABWcb1rwx42gCZqo8LHHdZq9VwFdeYfgQULe44yAC6BAA4AXKCADKtgE4BLAHYBzEAF8CsAzQIMiQ6Nj4RKQglNJ01JY29pBOrp4%2B-uDilAghqJi4BMSQZMo84uwE1HQSChzUsLDkvAlVjVR1VbQGZokgdg7O7t5%2BRpK5oeGFUSUg1GaU3PUL5OTLCmz8Vv3JqcMZBJS0OcGTBZHFZCpKTdQ5Rg3ktIYgG8q0ra%2BSrOKfCrA3SqvcgKWjia6sAFKDgKSEbBhGZ5Pa70CTiARgLhSDiUSTyHGsairDhSZ4vMysEQk4wmElSSgqbIsNYEdQ0T7yJSfODkeT3cAKKTNASgyEs8DKX4qMDVWJAmWwXi8fkmCTHATkRVUDUgtQwhTCRQw3iK8ZGUw-P7SA0vDarE0wsrEh6wpok6Qg8X-AGwa5mGSdECkkFA2G8Zqhj4glWEwkIubK1j0DjRhkp%2BTZDiQ1j-LMmXEcGSNaW8QVUsQSVisfmCfPxysNbmEo5NymweXdTXcj45l6Y%2Bg-GGCOgqsCrJND55m14mG76zGUQPGaiw65Eqh-GhqFXiYvXDTl4HkH4x5oVDjtqRbJKDNIjTKrOqnfIRIrROiwI4CBr-L2wqjXCaHyAZCEjGmKIGBH8BjVkuLa9A8ZTXE0Uh-GC-zXjst77KM4C0BOz5hOcb6zJhAwpEM6R%2BJk8DBG4AAmDgALQGIG5EgBwACOtgAJ4OCovHWDgDj0VgyC%2BL4QA Starting filter criteria] (24 products left).

After L298 is disqualified for being too expensive and outdated, NO ICs remain! WTF???

Half Bridge (2x):

With the possible exception of ST VN5772AK (how do high-side MOSFETs get powered? Why hard to source), same shit, ICs either implement Braking on H, H input signals combination, OR use High-Side NMOS switches with an internal charge pump. WHAT THE FUCK???

TODO DOC WTF ONSEMI DATASHEETS LINKS FROM DK ARE NOT WORKING???

EEDEHD Medium-Power 4+ Inductive Loads Driver IC

2022-05-16T02:48:06Z

21stCP Wiki BDFL: /* PMIC - Full, Half-Bridge Drivers */

=== Introduction ===
The objective of this article is to find an IC which can switch 4+ of medium-power inductive loads.

Loads may be stepper motors, DC motors, or solenoids, at user's discretion.

The IC must have the following features:

4+ of independent half-bridge outputs, preferably at least two splittable full bridges / four independent half bridges in same package.

ALL outputs MUST not modify or invert logic of inputs, for any combination of inputs. See issues with motor control ICs with "brake" function.

100mA minimum drive capability per output channel, 0.5A+ desired.

5V-12V+ load side supply voltage.

Relay coil PWM throttle NOT used (for general adaptivity for any loads such as motors, not just relays).

Reasonably protected output stage for inductive loads drive capability.

Reasonably protected output stage for typical failure scenarios (short circuit, overcurrent, overvoltage, undervoltage, overtemperature, etc).

Can keep up with reasonable PWM waveforms and frequencies.

Not a package I hate (FN, BGA, etc).

A package which can dissipate realistic amount of waste heat with REAL loads being switched at reasonable speeds.

High-side switches NOT NMOS (as this requires costly, limited, and noisy charge pump circuitry inside the IC or external to it).

Surface-mount.

Affordable.

The following DigiKey categories have been parsed:

Interface - Drivers, Receivers, Transceivers

Interface - Signal Buffers, Repeaters, Splitters

Logic - Buffers, Drivers, Receivers, Transceivers

Logic - Gates and Inverters

PMIC - Full, Half-Bridge Drivers

PMIC - Gate Drivers

PMIC - Motor Drivers, Controllers

=== PMIC - Full, Half-Bridge Drivers ===
[https://www.digikey.com/en/products/filter/pmic-full-half-bridge-drivers/746?s=N4IgjCBcpgbFoDGUBmBDANgZwKYBoQB7KAbRAHYAWAZgE5aQCrLKAORkW861gBg7A1yYCATABWcb1rwx42gCZqo8LHHdZq9VwFdeYfgQULe44yAC6BAA4AXKCADKtgE4BLAHYBzEAF8CsAzQIMiQ6Nj4RKQglNJ01JY29pBOrp4%2B-uDilAghqJi4BMSQZMo84uwE1HQSChzUsLDkvAlVjVR1VbQGZokgdg7O7t5%2BRpK5oeGFUSUg1GaU3PUL5OTLCmz8Vv3JqcMZBJS0OcGTBZHFZCpKTdQ5Rg3ktIYgG8q0ra%2BSrOKfCrA3SqvcgKWjia6sAFKDgKSEbBhGZ5Pa70CTiARgLhSDiUSTyHGsairDhSZ4vMysEQk4wmElSSgqbIsNYEdQ0T7yJSfODkeT3cAKKTNASgyEs8DKX4qMDVWJAmWwXi8fkmCTHATkRVUDUgtQwhTCRQw3iK8ZGUw-P7SA0vDarE0wsrEh6wpok6Qg8X-AGwa5mGSdECkkFA2G8Zqhj4glWEwkIubK1j0DjRhkp%2BTZDiQ1j-LMmXEcGSNaW8QVUsQSVisfmCfPxysNbmEo5NymweXdTXcj45l6Y%2Bg-GGCOgqsCrJND55m14mG76zGUQPGaiw65Eqh-GhqFXiYvXDTl4HkH4x5oVDjtqRbJKDNIjTKrOqnfIRIrROiwI4CBr-L2wqjXCaHyAZCEjGmKIGBH8BjVkuLa9A8ZTXE0Uh-GC-zXjst77KM4C0BOz5hOcb6zJhAwpEM6R%2BJk8DBG4AAmDgALQGIG5EgBwACOtgAJ4OCovHWDgDj0VgyC%2BL4QA Starting filter criteria] (24 products left).

Half Bridge (4x):

After L298 is disqualified for being too expensive and outdated, NO ICs remain! WTF???

Half Bridge (2x):

With the possible exception of ST VN5772AK (how do high-side MOSFETs get powered? Why hard to source), same shit, ICs either implement Braking on H, H input signals combination, OR use High-Side NMOS switches with an internal charge pump. WHAT THE FUCK???

TODO DOC WTF ONSEMI DATASHEETS LINKS FROM DK ARE NOT WORKING???

EEDEHD Medium-Power 4+ Inductive Loads Driver IC

2022-05-15T23:58:57Z

21stCP Wiki BDFL: /* PMIC - Full, Half-Bridge Drivers */

=== Introduction ===
The objective of this article is to find an IC which can switch 4+ of medium-power inductive loads.

Loads may be stepper motors, DC motors, or solenoids, at user's discretion.

The IC must have the following features:

4+ of independent half-bridge outputs, preferably at least two splittable full bridges / four independent half bridges in same package.

ALL outputs MUST not modify or invert logic of inputs, for any combination of inputs. See issues with motor control ICs with "brake" function.

100mA minimum drive capability per output channel, 0.5A+ desired.

5V-12V+ load side supply voltage.

Relay coil PWM throttle NOT used (for general adaptivity for any loads such as motors, not just relays).

Reasonably protected output stage for inductive loads drive capability.

Reasonably protected output stage for typical failure scenarios (short circuit, overcurrent, overvoltage, undervoltage, overtemperature, etc).

Can keep up with reasonable PWM waveforms and frequencies.

Not a package I hate (FN, BGA, etc).

A package which can dissipate realistic amount of waste heat with REAL loads being switched at reasonable speeds.

High-side switches NOT NMOS (as this requires costly, limited, and noisy charge pump circuitry inside the IC or external to it).

Surface-mount.

Affordable.

The following DigiKey categories have been parsed:

Interface - Drivers, Receivers, Transceivers

Interface - Signal Buffers, Repeaters, Splitters

Logic - Buffers, Drivers, Receivers, Transceivers

Logic - Gates and Inverters

PMIC - Full, Half-Bridge Drivers

PMIC - Gate Drivers

PMIC - Motor Drivers, Controllers

=== PMIC - Full, Half-Bridge Drivers ===
[https://www.digikey.com/en/products/filter/pmic-full-half-bridge-drivers/746?s=N4IgjCBcpgbFoDGUBmBDANgZwKYBoQB7KAbRAHYAWAZgE5aQCrLKAORkW861gBg7A1yYCATABWcb1rwx42gCZqo8LHHdZq9VwFdeYfgQULe44yAC6BAA4AXKCADKtgE4BLAHYBzEAF8CsAzQIMiQ6Nj4RKQglNJ01JY29pBOrp4%2B-uDilAghqJi4BMSQZMo84uwE1HQSChzUsLDkvAlVjVR1VbQGZokgdg7O7t5%2BRpK5oeGFUSUg1GaU3PUL5OTLCmz8Vv3JqcMZBJS0OcGTBZHFZCpKTdQ5Rg3ktIYgG8q0ra%2BSrOKfCrA3SqvcgKWjia6sAFKDgKSEbBhGZ5Pa70CTiARgLhSDiUSTyHGsairDhSZ4vMysEQk4wmElSSgqbIsNYEdQ0T7yJSfODkeT3cAKKTNASgyEs8DKX4qMDVWJAmWwXi8fkmCTHATkRVUDUgtQwhTCRQw3iK8ZGUw-P7SA0vDarE0wsrEh6wpok6Qg8X-AGwa5mGSdECkkFA2G8Zqhj4glWEwkIubK1j0DjRhkp%2BTZDiQ1j-LMmXEcGSNaW8QVUsQSVisfmCfPxysNbmEo5NymweXdTXcj45l6Y%2Bg-GGCOgqsCrJND55m14mG76zGUQPGaiw65Eqh-GhqFXiYvXDTl4HkH4x5oVDjtqRbJKDNIjTKrOqnfIRIrROiwI4CBr-L2wqjXCaHyAZCEjGmKIGBH8BjVkuLa9A8ZTXE0Uh-GC-zXjst77KM4C0BOz5hOcb6zJhAwpEM6R%2BJk8DBG4AAmDgALQGIG5EgBwACOtgAJ4OCovHWDgDj0VgyC%2BL4QA Starting filter criteria] (24 products left).

Half Bridge (4):

After L298 is disqualified for being too expensive and outdated, NO ICs remain! WTF???

'''TODO parse this category for just two half-bridge drivers...'''

TODO DOC WTF ONSEMI DATASHEETS LINKS FROM DK ARE NOT WORKING???

EEDEHD Medium-Power 4+ Inductive Loads Driver IC

2022-05-15T23:51:15Z

21stCP Wiki BDFL:

=== Introduction ===
The objective of this article is to find an IC which can switch 4+ of medium-power inductive loads.

Loads may be stepper motors, DC motors, or solenoids, at user's discretion.

The IC must have the following features:

4+ of independent half-bridge outputs, preferably at least two splittable full bridges / four independent half bridges in same package.

ALL outputs MUST not modify or invert logic of inputs, for any combination of inputs. See issues with motor control ICs with "brake" function.

100mA minimum drive capability per output channel, 0.5A+ desired.

5V-12V+ load side supply voltage.

Relay coil PWM throttle NOT used (for general adaptivity for any loads such as motors, not just relays).

Reasonably protected output stage for inductive loads drive capability.

Reasonably protected output stage for typical failure scenarios (short circuit, overcurrent, overvoltage, undervoltage, overtemperature, etc).

Can keep up with reasonable PWM waveforms and frequencies.

Not a package I hate (FN, BGA, etc).

A package which can dissipate realistic amount of waste heat with REAL loads being switched at reasonable speeds.

High-side switches NOT NMOS (as this requires costly, limited, and noisy charge pump circuitry inside the IC or external to it).

Surface-mount.

Affordable.

The following DigiKey categories have been parsed:

Interface - Drivers, Receivers, Transceivers

Interface - Signal Buffers, Repeaters, Splitters

Logic - Buffers, Drivers, Receivers, Transceivers

Logic - Gates and Inverters

PMIC - Full, Half-Bridge Drivers

PMIC - Gate Drivers

PMIC - Motor Drivers, Controllers

=== PMIC - Full, Half-Bridge Drivers ===
[https://www.digikey.com/en/products/filter/pmic-full-half-bridge-drivers/746?s=N4IgjCBcpgbFoDGUBmBDANgZwKYBoQB7KAbRAHYAWAZgE5aQCrLKAORkW861gBg7A1yYCATABWcb1rwx42gCZqo8LHHdZq9VwFdeYfgQULe44yAC6BAA4AXKCADKtgE4BLAHYBzEAF8CsAzQIMiQ6Nj4RKQglNJ01JY29pBOrp4%2B-uDilAghqJi4BMSQZMo84uwE1HQSChzUsLDkvAlVjVR1VbQGZokgdg7O7t5%2BRpK5oeGFUSUg1GaU3PUL5OTLCmz8Vv3JqcMZBJS0OcGTBZHFZCpKTdQ5Rg3ktIYgG8q0ra%2BSrOKfCrA3SqvcgKWjia6sAFKDgKSEbBhGZ5Pa70CTiARgLhSDiUSTyHGsairDhSZ4vMysEQk4wmElSSgqbIsNYEdQ0T7yJSfODkeT3cAKKTNASgyEs8DKX4qMDVWJAmWwXi8fkmCTHATkRVUDUgtQwhTCRQw3iK8ZGUw-P7SA0vDarE0wsrEh6wpok6Qg8X-AGwa5mGSdECkkFA2G8Zqhj4glWEwkIubK1j0DjRhkp%2BTZDiQ1j-LMmXEcGSNaW8QVUsQSVisfmCfPxysNbmEo5NymweXdTXcj45l6Y%2Bg-GGCOgqsCrJND55m14mG76zGUQPGaiw65Eqh-GhqFXiYvXDTl4HkH4x5oVDjtqRbJKDNIjTKrOqnfIRIrROiwI4CBr-L2wqjXCaHyAZCEjGmKIGBH8BjVkuLa9A8ZTXE0Uh-GC-zXjst77KM4C0BOz5hOcb6zJhAwpEM6R%2BJk8DBG4AAmDgALQGIG5EgBwACOtgAJ4OCovHWDgDj0VgyC%2BL4QA Starting filter criteria] (24 products left).

After L298 is disqualified for being too expensive and outdated, NO ICs remain! WTF???

'''TODO parse this category for just two half-bridge drivers...'''

EEDEHD Medium-Power 4+ Inductive Loads Driver IC

2022-05-15T23:21:16Z

21stCP Wiki BDFL:

The objective of this article is to find an IC which can switch 4+ of medium-power inductive loads.

Loads may be stepper motors, DC motors, or solenoids, at user's discretion.

The IC must have the following features:

4+ of independent half-bridge outputs, preferably at least two splittable full bridges / four independent half bridges in same package.

ALL outputs MUST not modify or invert logic of inputs, for any combination of inputs. See issues with motor control ICs with "brake" function.

100mA minimum drive capability per output channel, 0.5A+ desired.

5V-12V+ load side supply voltage.

Relay coil PWM throttle NOT used (for general adaptivity for any loads such as motors, not just relays).

Reasonably protected output stage for inductive loads drive capability.

Reasonably protected output stage for typical failure scenarios (short circuit, overcurrent, overvoltage, undervoltage, overtemperature, etc).

Can keep up with reasonable PWM waveforms and frequencies.

Not a package I hate (FN, BGA, etc).

A package which can dissipate realistic amount of waste heat with REAL loads being switched at reasonable speeds.

High-side switches NOT NMOS (as this requires costly, limited, and noisy charge pump circuitry inside the IC or external to it).

The following DigiKey categories have been parsed:

Interface - Drivers, Receivers, Transceivers

Interface - Signal Buffers, Repeaters, Splitters

Logic - Buffers, Drivers, Receivers, Transceivers

Logic - Gates and Inverters

PMIC - Full, Half-Bridge Drivers

PMIC - Gate Drivers

PMIC - Motor Drivers, Controllers

EEDEHD Medium-Power 4+ Inductive Loads Driver IC

2022-05-15T23:20:34Z

21stCP Wiki BDFL:

The objective of this article is to find an IC which can switch 4+ of medium-power inductive loads.

Loads may be stepper motors, DC motors, or solenoids, at user's discretion.

The IC must have the following features:

4+ of independent half-bridge outputs, preferably at least two splittable full bridges / four independent half bridges in same package.

ALL outputs MUST not modify or invert logic of inputs, for any combination of inputs. See issues with motor control ICs with "brake" function.

100mA minimum drive capability per output channel, 0.5A+ desired.

5V-12V+ load side supply voltage.

Relay coil PWM throttle NOT used (for general adaptivity for any loads such as motors, not just relays).

Reasonably protected output stage for inductive loads drive capability.

Reasonably protected output stage for typical failure scenarios (short circuit, overcurrent, overvoltage, undervoltage, overtemperature, etc).

Can keep up with reasonable PWM waveforms and frequencies.

Not a package I hate (FN, BGA, etc).

A package which can dissipate realistic amount of waste heat with REAL loads being switched at reasonable speeds.

High-side switches NOT NMOS (as this requires costly, limited, and noisy charge pump circuitry inside the IC or external to it).

The following DigiKey categories have been parsed:

* Interface - Drivers, Receivers, Transceivers(19,880 Items)

Interface - Signal Buffers, Repeaters, Splitters

* Logic - Buffers, Drivers, Receivers, Transceivers(17,041 Items)

* Logic - Gates and Inverters(15,321 Items)

* PMIC - Full, Half-Bridge Drivers(1,210 Items)
* PMIC - Gate Drivers(6,863 Items)
* PMIC - Motor Drivers, Controllers

EEDEHD Medium-Power 4+ Inductive Loads Driver IC

2022-05-15T22:46:02Z

21stCP Wiki BDFL: Created page with "The objective of this article is to find an IC which"

The objective of this article is to find an IC which

EEDEHD ARM Cortex M4F MCU choices

2022-05-15T13:35:07Z

21stCP Wiki BDFL: /* STMicrolectronics ARM Cortex M7 MCU offers */

{{EED-DigiKey-Standard-IC-Filter-Criteria}}

As explained in <nowiki>[[EEDEHD ARM Cortex M7 MCU choices]]</nowiki>, choices for ARM Cortex M7 MCUs influence our choices of M4F MCUs. F stands for Floating Point calculation co-processor option that is built in. Without dedicated hardware, floating-point calculations are extremely inefficient and slow otherwise.

Note: only single-core solutions are looked at here, as being far less easier to start using for the first time by a newcomer, compared to multicore solutions.

Starting from:

https://www.digikey.com/en/products/filter/embedded-microcontrollers/685

Additional Search Criteria/Parameters:

Core Processor: ARM Cortex-M4/M4F. Note regarding also selecting M4 in addition to M4F: because just like in countless other situations, DigiKey search lists/criteria are to NEVER be trusted. They are too frequently incorrect, incomplete, stupid, or useless!!!

Due to our desire to be able to jump to M7 as needed, we will only support same three manufacturers that offer ARM Cortex M7 MCUs:
*Microchip Technology
*STMicrolectronics
*NXP USA Inc.
And just for cross-compatibility's sake, we only consider MCU families that offer Ethernet and other advanced connectivity options (also like CAN, etc), just in case these will be ever utilized.

==== Microchip Technology ARM Cortex M7 MCU offers ====
SAM E54 Family (with Ethernet and CAN)

SAM E53 Family (with Ethernet, without CAN)

SAM E51 Family (without Ethernet, but with CAN)

SAM D51 Family (without Ethernet or CAN)

SAM4E. TODO older family???

Unfortunately, Microchip packages peter out at a measly 128-TQFP / 120-TFBGA. This is a deal-killer!!! And the TQFP package has a rather limited number of CRET pins as well. We suspect that at 120MHz, such a poor provision for number and location of CRET pins will likely cause serious Signal Integrity issues at full clock speed... Therefore, the only reason we would consider using Microchip is if there is a rather serious software compatibility (such as to Arduino bootloaders already written for Microchip) / customer support / documentation / hardware compatibility benefit to sacrificing pincount and SI considerations.

==== STMicrolectronics ARM Cortex M7 MCU offers ====
STM32F4

TODO WHAT ARE -G AND -L FAMILIES???

Dual-core families:

STM32H7

Package options go all the way up to 216-TFBGA (265-TFBGA for dual core??? TODO), and that is awesome!!!

TODO decipher families:

STM32F429

STM32F439

STM32F469. Full-featured, best in family.

STM32F479. Hardware cryptographic accelerator.

==== NXP USA Inc ARM Cortex M7 MCU offers ====
Kinetis K50

Kinetis K60

Kinetis K70

LPC40xx

PLC540xx

LPC546xx

S32K

Dual-core families:

i.MX

NXP will be penciled in as a standby option, and won't be considered further at this time.

EEDEHD ARM Cortex M4F MCU choices

2022-05-15T13:32:30Z

21stCP Wiki BDFL: /* STMicrolectronics ARM Cortex M7 MCU offers */

{{EED-DigiKey-Standard-IC-Filter-Criteria}}

As explained in <nowiki>[[EEDEHD ARM Cortex M7 MCU choices]]</nowiki>, choices for ARM Cortex M7 MCUs influence our choices of M4F MCUs. F stands for Floating Point calculation co-processor option that is built in. Without dedicated hardware, floating-point calculations are extremely inefficient and slow otherwise.

Note: only single-core solutions are looked at here, as being far less easier to start using for the first time by a newcomer, compared to multicore solutions.

Starting from:

https://www.digikey.com/en/products/filter/embedded-microcontrollers/685

Additional Search Criteria/Parameters:

Core Processor: ARM Cortex-M4/M4F. Note regarding also selecting M4 in addition to M4F: because just like in countless other situations, DigiKey search lists/criteria are to NEVER be trusted. They are too frequently incorrect, incomplete, stupid, or useless!!!

Due to our desire to be able to jump to M7 as needed, we will only support same three manufacturers that offer ARM Cortex M7 MCUs:
*Microchip Technology
*STMicrolectronics
*NXP USA Inc.
And just for cross-compatibility's sake, we only consider MCU families that offer Ethernet and other advanced connectivity options (also like CAN, etc), just in case these will be ever utilized.

==== Microchip Technology ARM Cortex M7 MCU offers ====
SAM E54 Family (with Ethernet and CAN)

SAM E53 Family (with Ethernet, without CAN)

SAM E51 Family (without Ethernet, but with CAN)

SAM D51 Family (without Ethernet or CAN)

SAM4E. TODO older family???

Unfortunately, Microchip packages peter out at a measly 128-TQFP / 120-TFBGA. This is a deal-killer!!! And the TQFP package has a rather limited number of CRET pins as well. We suspect that at 120MHz, such a poor provision for number and location of CRET pins will likely cause serious Signal Integrity issues at full clock speed... Therefore, the only reason we would consider using Microchip is if there is a rather serious software compatibility (such as to Arduino bootloaders already written for Microchip) / customer support / documentation / hardware compatibility benefit to sacrificing pincount and SI considerations.

==== STMicrolectronics ARM Cortex M7 MCU offers ====
STM32F4

TODO WHAT ARE -G AND -L FAMILIES???

Dual-core families:

STM32H7

Package options go all the way up to 216-TFBGA (265-TFBGA for dual core??? TODO), and that is awesome!!!

TODO decipher families:

STM32F429

STM32F439

STM32F469

STM32F479

==== NXP USA Inc ARM Cortex M7 MCU offers ====
Kinetis K50

Kinetis K60

Kinetis K70

LPC40xx

PLC540xx

LPC546xx

S32K

Dual-core families:

i.MX

NXP will be penciled in as a standby option, and won't be considered further at this time.

EEDEHD ARM Cortex M4F MCU choices

2022-05-15T13:26:45Z

21stCP Wiki BDFL: /* STMicrolectronics ARM Cortex M7 MCU offers */

{{EED-DigiKey-Standard-IC-Filter-Criteria}}

As explained in <nowiki>[[EEDEHD ARM Cortex M7 MCU choices]]</nowiki>, choices for ARM Cortex M7 MCUs influence our choices of M4F MCUs. F stands for Floating Point calculation co-processor option that is built in. Without dedicated hardware, floating-point calculations are extremely inefficient and slow otherwise.

Note: only single-core solutions are looked at here, as being far less easier to start using for the first time by a newcomer, compared to multicore solutions.

Starting from:

https://www.digikey.com/en/products/filter/embedded-microcontrollers/685

Additional Search Criteria/Parameters:

Core Processor: ARM Cortex-M4/M4F. Note regarding also selecting M4 in addition to M4F: because just like in countless other situations, DigiKey search lists/criteria are to NEVER be trusted. They are too frequently incorrect, incomplete, stupid, or useless!!!

Due to our desire to be able to jump to M7 as needed, we will only support same three manufacturers that offer ARM Cortex M7 MCUs:
*Microchip Technology
*STMicrolectronics
*NXP USA Inc.
And just for cross-compatibility's sake, we only consider MCU families that offer Ethernet and other advanced connectivity options (also like CAN, etc), just in case these will be ever utilized.

==== Microchip Technology ARM Cortex M7 MCU offers ====
SAM E54 Family (with Ethernet and CAN)

SAM E53 Family (with Ethernet, without CAN)

SAM E51 Family (without Ethernet, but with CAN)

SAM D51 Family (without Ethernet or CAN)

SAM4E. TODO older family???

Unfortunately, Microchip packages peter out at a measly 128-TQFP / 120-TFBGA. This is a deal-killer!!! And the TQFP package has a rather limited number of CRET pins as well. We suspect that at 120MHz, such a poor provision for number and location of CRET pins will likely cause serious Signal Integrity issues at full clock speed... Therefore, the only reason we would consider using Microchip is if there is a rather serious software compatibility (such as to Arduino bootloaders already written for Microchip) / customer support / documentation / hardware compatibility benefit to sacrificing pincount and SI considerations.

==== STMicrolectronics ARM Cortex M7 MCU offers ====
STM32F4

TODO WHAT ARE -G AND -L FAMILIES???

Dual-core families:

STM32H7

Package options go all the way up to 216-TFBGA (265-TFBGA for dual core??? TODO), and that is awesome!!!

==== NXP USA Inc ARM Cortex M7 MCU offers ====
Kinetis K50

Kinetis K60

Kinetis K70

LPC40xx

PLC540xx

LPC546xx

S32K

Dual-core families:

i.MX

NXP will be penciled in as a standby option, and won't be considered further at this time.

EEDEHD ARM Cortex M4F MCU choices

2022-05-15T13:24:19Z

21stCP Wiki BDFL: /* STMicrolectronics ARM Cortex M7 MCU offers */

{{EED-DigiKey-Standard-IC-Filter-Criteria}}

As explained in <nowiki>[[EEDEHD ARM Cortex M7 MCU choices]]</nowiki>, choices for ARM Cortex M7 MCUs influence our choices of M4F MCUs. F stands for Floating Point calculation co-processor option that is built in. Without dedicated hardware, floating-point calculations are extremely inefficient and slow otherwise.

Note: only single-core solutions are looked at here, as being far less easier to start using for the first time by a newcomer, compared to multicore solutions.

Starting from:

https://www.digikey.com/en/products/filter/embedded-microcontrollers/685

Additional Search Criteria/Parameters:

Core Processor: ARM Cortex-M4/M4F. Note regarding also selecting M4 in addition to M4F: because just like in countless other situations, DigiKey search lists/criteria are to NEVER be trusted. They are too frequently incorrect, incomplete, stupid, or useless!!!

Due to our desire to be able to jump to M7 as needed, we will only support same three manufacturers that offer ARM Cortex M7 MCUs:
*Microchip Technology
*STMicrolectronics
*NXP USA Inc.
And just for cross-compatibility's sake, we only consider MCU families that offer Ethernet and other advanced connectivity options (also like CAN, etc), just in case these will be ever utilized.

==== Microchip Technology ARM Cortex M7 MCU offers ====
SAM E54 Family (with Ethernet and CAN)

SAM E53 Family (with Ethernet, without CAN)

SAM E51 Family (without Ethernet, but with CAN)

SAM D51 Family (without Ethernet or CAN)

SAM4E. TODO older family???

Unfortunately, Microchip packages peter out at a measly 128-TQFP / 120-TFBGA. This is a deal-killer!!! And the TQFP package has a rather limited number of CRET pins as well. We suspect that at 120MHz, such a poor provision for number and location of CRET pins will likely cause serious Signal Integrity issues at full clock speed... Therefore, the only reason we would consider using Microchip is if there is a rather serious software compatibility (such as to Arduino bootloaders already written for Microchip) / customer support / documentation / hardware compatibility benefit to sacrificing pincount and SI considerations.

==== STMicrolectronics ARM Cortex M7 MCU offers ====
STM32F4

TODO WHAT ARE -G AND -L FAMILIES???

Dual-core families:

STM32H7

Package options go all the way up to 265-TFBGA, and that is awesome!!!

==== NXP USA Inc ARM Cortex M7 MCU offers ====
Kinetis K50

Kinetis K60

Kinetis K70

LPC40xx

PLC540xx

LPC546xx

S32K

Dual-core families:

i.MX

NXP will be penciled in as a standby option, and won't be considered further at this time.

EEHDSGN Real Operational Amplifier Circuits

2022-02-19T21:04:01Z

21stCP Wiki BDFL: /* Non-ideal op amp behaviors */

=== Introduction ===
Basic operational amplifier (op amp) circuits are covered to death elsewhere. What is commonly not discussed, however, is that real-world (industrial, rugged) op amp circuits are NOT the basic ones commonly shown everywhere.

=== Real-World Op Amp Circuit Considerations ===
Real-world considerations (for an op amp in an industrial / commercial product) include the following:

# Provisions to prevent op amp from oscillation.
# Provisions to include filtering on op am input.
# Provisions to balance op amp input impedances, especially when filtering is employed.
# Picking an appropriate op amp IC type for the project at hand.
# And many others.

=== Requisite Concepts ===
Input/output impedance

Single vs dual power supply rails

Distortion / Nonlinearity

Gain

Feedback

=== Basic Op Amp Circuits ===
It would be useful to start from basic circuits, and immediately observe issues with them:

TODO inverting

TODO its parameters

TODO non-inverting

TODO its parameters

TODO differential

TODO its parameters

=== Non-ideal op amp behaviors ===
Saturation

Operation close to rails

Nonlinearities

Bandwidth. Also non-linearity of bandwidth

Instability

Common-mode

Offset

Maximum output current

=== Preventing op amp oscillation ===

=== Adding filtering to op amp circuit ===

=== Impedance Balancing ===

=== Op amp features ===
Rail-to-rail input and/or output

Single-supply operation

=== Representative modern op amps for common applications ===

=== Rugged industrial designs requirements and concepts ===
Future part provision

Invariability over manufacturing changes, part changes, temperature, power supply voltage, etc

Gain selectability

=== Rugged industrial op amp circuits ===

=== Real-World considerations ===
Missing component / solder joint issues / component cracking

Contamination

Humidity

Tin whiskers

Part discontinuation (EOL)

EEHDSGN Real Operational Amplifier Circuits

2022-02-19T20:50:22Z

21stCP Wiki BDFL: /* Requisite Concepts */

=== Introduction ===
Basic operational amplifier (op amp) circuits are covered to death elsewhere. What is commonly not discussed, however, is that real-world (industrial, rugged) op amp circuits are NOT the basic ones commonly shown everywhere.

=== Real-World Op Amp Circuit Considerations ===
Real-world considerations (for an op amp in an industrial / commercial product) include the following:

# Provisions to prevent op amp from oscillation.
# Provisions to include filtering on op am input.
# Provisions to balance op amp input impedances, especially when filtering is employed.
# Picking an appropriate op amp IC type for the project at hand.
# And many others.

=== Requisite Concepts ===
Input/output impedance

Single vs dual power supply rails

Distortion / Nonlinearity

Gain

Feedback

=== Basic Op Amp Circuits ===
It would be useful to start from basic circuits, and immediately observe issues with them:

TODO inverting

TODO its parameters

TODO non-inverting

TODO its parameters

TODO differential

TODO its parameters

=== Non-ideal op amp behaviors ===
Saturation

Operation close to rails

Nonlinearities

Bandwidth

Instability

Common-mode

Offset

=== Preventing op amp oscillation ===

=== Adding filtering to op amp circuit ===

=== Impedance Balancing ===

=== Op amp features ===
Rail-to-rail input and/or output

Single-supply operation

=== Representative modern op amps for common applications ===

=== Rugged industrial op amp circuits ===

EEHDSGN Real Operational Amplifier Circuits

2022-02-19T20:48:17Z

21stCP Wiki BDFL: /* Non-ideal op amp behaviors */

=== Introduction ===
Basic operational amplifier (op amp) circuits are covered to death elsewhere. What is commonly not discussed, however, is that real-world (industrial, rugged) op amp circuits are NOT the basic ones commonly shown everywhere.

=== Real-World Op Amp Circuit Considerations ===
Real-world considerations (for an op amp in an industrial / commercial product) include the following:

# Provisions to prevent op amp from oscillation.
# Provisions to include filtering on op am input.
# Provisions to balance op amp input impedances, especially when filtering is employed.
# Picking an appropriate op amp IC type for the project at hand.
# And many others.

=== Requisite Concepts ===
Input/output impedance

Single vs dual power supply rails

=== Basic Op Amp Circuits ===
It would be useful to start from basic circuits, and immediately observe issues with them:

TODO inverting

TODO its parameters

TODO non-inverting

TODO its parameters

TODO differential

TODO its parameters

=== Non-ideal op amp behaviors ===
Saturation

Operation close to rails

Nonlinearities

Bandwidth

Instability

=== Preventing op amp oscillation ===

=== Adding filtering to op amp circuit ===

=== Impedance Balancing ===

=== Op amp features ===
Rail-to-rail input and/or output

Single-supply operation

=== Representative modern op amps for common applications ===

=== Rugged industrial op amp circuits ===

EEHDSGN Real Operational Amplifier Circuits

2022-02-19T20:44:59Z

21stCP Wiki BDFL: /* Basic Op Amp Circuits */

EEHDSGN Real Operational Amplifier Circuits

2022-02-19T20:40:34Z

21stCP Wiki BDFL:

EEHDSGN Real Operational Amplifier Circuits

2022-02-19T20:37:19Z

21stCP Wiki BDFL:

EEHDSGN Real Operational Amplifier Circuits

2022-02-19T20:33:33Z

21stCP Wiki BDFL: Created page with "asdf"

asdf

EEHPRT Simple Low-Current Constant-Current Sources

2022-02-18T06:22:19Z

21stCP Wiki BDFL:

=== Introduction ===
Whether driving LEDs or for transducer excitation, a need arises for a simple (ideally, two-leaded part) constant-current source which is simple to use, compact, versatile, adjustable, and has a wide span of current adjustment and excitation voltage supply range.

Unfortunately, such a part does not really exist if "small" constant current (≤20mA, even more so for ≤10mA) is desired. Several choices are available, each with its own disadvantages or limitations.

Even less choices are available if adjustment of current output is required, and/or a low tempco (temperature coefficient of changes in output without any adjustment of setpoint) is also needed.

This article primarily relies on components as currently stocked on DigiKey.

https://www.digikey.com/en/products/filter/pmic-current-regulation-management/734

TODO DK disclaimer.

=== Available Component Classes ===

==== Constant-Current Diode ====
Constant-current diodes were popular back in the day, but they are relatively rare these days (although LED-drive applications are causing a comeback, even if minimum current regulation for those who bothered to make devices is already too high at 10-20mA for state of the art modern LEDs).

We will discuss Central Semiconductor Corp CMJ series here, as a representative example for options below 10mA (more options exist for ≥10mA from onsemi et al).

Total supply voltage range: 50/100V

Minimum voltage headroom for regulation: On the order of 10V???

Current adjustment range: --

Minimum regulated current:

Maximum regulated current:

Maximum voltage delta:

Maximum power: 500mW

Does not require ground reference ("two-terminal" operation)?: Yes

Accuracy:

Reverse-voltage protection?:

Advantages:

Disadvantages: Not every current choice is available, especially exact selections like 4.0mA. Non-trivial tempco. Shitty datasheet. Large required voltage headroom???

Since these devices have a shitty datasheet, there is not much more we can determine from the datasheet. Our best understanding of what is inside these devices is that they are simply binned JFETs with controlled gate width/length, and with two terminals interconnected (see [[#Single JFET|section below]] on making such a device yourself).

==== LM134 / LM234 ====
LM134/LM234/LM334 is a strange old device, in that its current is highly dependent on IC junction temperature. With an added diode and resistor, at total component count of four devices, tempco can be minimized but NOT eliminated to the point of acceptable standards in modern times. We suppose this device still has archaic use cases. We wish there was its equivalent with zero tempco by now!!!

Total supply voltage range: 1V to 40V

Minimum voltage headroom for regulation: 1.0V

Current adjustment range: 1μA to 10mA

Minimum regulated current: 1μA (BS cover sheet claim, too optimistic per rest of datasheet tables and plots)

Maximum regulated current: 10mA

Maximum voltage delta: 40V

Maximum power: 400mW

Does not require ground reference ("two-terminal" operation)?: Yes

Accuracy: ±3%.

Reverse-voltage protection?: Yes

Advantages: Old stuff, small headroom

Disadvantages: dependence of current output on IC junction temperature, four components required, adjustable zero-tempco operation is not practical because both resistors' value would have to be adjusted in a tracking manner.

TODO schematic

TODO modern diode

==== LM317L ====
LM317 is well-known to be capable of constant-current operation (instead of more common constant-voltage operation) with slight rearrangement of external wiring.

TODO schematic

Reading LM317 datasheet, however, the reader will realize that minimum output current is rather high at TODO.

The solution is LM317'''L''' variant. Capable of only 100mA maximum output, the minimum output current also decreases to 1.5-2.5mA.

Total supply voltage range: 35V max

Minimum voltage headroom for regulation: 2.5V

Current adjustment range: 2.5mA(max) to 100mA

Minimum regulated current: 1.5mA typical, 2.5mA maximum

Maximum regulated current: 100mA

Maximum voltage delta: 35V

Maximum power:

Does not require ground reference ("two-terminal" operation)?: Yes

Accuracy:

Reverse-voltage protection?: TODO

Advantages: Very well-known, easy to use, commonly available.

Disadvantages: Headroom voltage higher than possible with other devices. Load (or load+pull-down resistor provided in schematic) must draw a minimum current of 1.5mA for constant current source to remain in regulation. All load current passes thru setpoint resistor, thus resistor power dissipation rating must be appropriate for application.

==== Other Circuits ====
TODO

Total supply voltage range:

Minimum voltage headroom for regulation:

Current adjustment range:

Minimum regulated current:

Maximum regulated current:

Maximum voltage delta:

Maximum power:

Does not require ground reference ("two-terminal" operation)?: Yes

Accuracy:

Reverse-voltage protection?:

Advantages:

Disadvantages:

==== Discrete Circuits ====

===== Single JFET =====
[[File:JFET constant-current source.png|thumb|JFET constant-current source]]
A single JFET can be interconnected as shown to make a rather simple constant-current source, which can either be fixed or adjustable.

The first significant downside is that part selection and binning is required to obtain a particular current value. This is not a problem in a hobby situation, but would be unacceptable in a manufacturing environment.

Another probable downside is that the voltage regulation overhead would be higher than other solutions shown in this page.

TODO plot one of these myself!!!

TODO

Total supply voltage range:

Minimum voltage headroom for regulation:

Current adjustment range:

Minimum regulated current:

Maximum regulated current:

Maximum voltage delta:

Maximum power:

Does not require ground reference ("two-terminal" operation)?: Yes

Accuracy:

Reverse-voltage protection?:

Advantages:

Disadvantages:

=== Conclusion ===
As bizarre as it sounds, few choices exist for simple constant-current regulation below about 10mA, especially if adjustment is required, and tempco must be low. If several considerations are not a deal-killer, the trusty LM317L is probably best. Some solutions exist for niche applications like LED drive, but often have an unacceptably (for many applications) minimum required voltage headroom.

EEHPRT Simple Low-Current Constant-Current Sources

2022-02-18T06:21:29Z

21stCP Wiki BDFL: /* Constant-Current Diode */

=== Introduction ===
Whether driving LEDs or for transducer excitation, a need arises for a simple (ideally, two-leaded part) constant-current source which is simple to use, compact, versatile, adjustable, and has a wide span of current adjustment and excitation voltage supply range.

Unfortunately, such a part does not really exist if "small" constant current (≤20mA, even more so for ≤10mA) is desired. Several choices are available, each with its own disadvantages or limitations.

Even less choices are available if adjustment of current output is required, and/or a low tempco (temperature coefficient of changes in output without any adjustment of setpoint) is also needed.

This article primarily relies on components as currently stocked on DigiKey.

https://www.digikey.com/en/products/filter/pmic-current-regulation-management/734

TODO DK disclaimer.

=== Available Component Classes ===

==== Constant-Current Diode ====
Constant-current diodes were popular back in the day, but they are relatively rare these days (although LED-drive applications are causing a comeback, even if minimum current regulation for those who bothered to make devices is already too high at 10-20mA for state of the art modern LEDs).

We will discuss Central Semiconductor Corp CMJ series here, as a representative example for options below 10mA (more options exist for ≥10mA from onsemi et al).

Total supply voltage range: 50/100V

Minimum voltage headroom for regulation: On the order of 10V???

Current adjustment range: --

Minimum regulated current:

Maximum regulated current:

Maximum voltage delta:

Maximum power: 500mW

Does not require ground reference ("two-terminal" operation)?: Yes

Accuracy:

Reverse-voltage protection?:

Advantages:

Disadvantages: Not every current choice is available, especially exact selections like 4.0mA. Non-trivial tempco. Shitty datasheet. Large required voltage headroom???

Since these devices have a shitty datasheet, there is not much more we can determine from the datasheet. Our best understanding of what is inside these devices is that they are simply binned JFETs with controlled gate width/length, and with two terminals interconnected (see <nowiki>[[#Single JFET|section below]]</nowiki> on making such a device yourself).

==== LM134 / LM234 ====
LM134/LM234/LM334 is a strange old device, in that its current is highly dependent on IC junction temperature. With an added diode and resistor, at total component count of four devices, tempco can be minimized but NOT eliminated to the point of acceptable standards in modern times. We suppose this device still has archaic use cases. We wish there was its equivalent with zero tempco by now!!!

Total supply voltage range: 1V to 40V

Minimum voltage headroom for regulation: 1.0V

Current adjustment range: 1μA to 10mA

Minimum regulated current: 1μA (BS cover sheet claim, too optimistic per rest of datasheet tables and plots)

Maximum regulated current: 10mA

Maximum voltage delta: 40V

Maximum power: 400mW

Does not require ground reference ("two-terminal" operation)?: Yes

Accuracy: ±3%.

Reverse-voltage protection?: Yes

Advantages: Old stuff, small headroom

Disadvantages: dependence of current output on IC junction temperature, four components required, adjustable zero-tempco operation is not practical because both resistors' value would have to be adjusted in a tracking manner.

TODO schematic

TODO modern diode

==== LM317L ====
LM317 is well-known to be capable of constant-current operation (instead of more common constant-voltage operation) with slight rearrangement of external wiring.

TODO schematic

Reading LM317 datasheet, however, the reader will realize that minimum output current is rather high at TODO.

The solution is LM317'''L''' variant. Capable of only 100mA maximum output, the minimum output current also decreases to 1.5-2.5mA.

Total supply voltage range: 35V max

Minimum voltage headroom for regulation: 2.5V

Current adjustment range: 2.5mA(max) to 100mA

Minimum regulated current: 1.5mA typical, 2.5mA maximum

Maximum regulated current: 100mA

Maximum voltage delta: 35V

Maximum power:

Does not require ground reference ("two-terminal" operation)?: Yes

Accuracy:

Reverse-voltage protection?: TODO

Advantages: Very well-known, easy to use, commonly available.

Disadvantages: Headroom voltage higher than possible with other devices. Load (or load+pull-down resistor provided in schematic) must draw a minimum current of 1.5mA for constant current source to remain in regulation. All load current passes thru setpoint resistor, thus resistor power dissipation rating must be appropriate for application.

==== Other Circuits ====
TODO

Total supply voltage range:

Minimum voltage headroom for regulation:

Current adjustment range:

Minimum regulated current:

Maximum regulated current:

Maximum voltage delta:

Maximum power:

Does not require ground reference ("two-terminal" operation)?: Yes

Accuracy:

Reverse-voltage protection?:

Advantages:

Disadvantages:

==== Discrete Circuits ====

===== Single JFET =====
[[File:JFET constant-current source.png|thumb|JFET constant-current source]]
A single JFET can be interconnected as shown to make a rather simple constant-current source, which can either be fixed or adjustable.

The first significant downside is that part selection and binning is required to obtain a particular current value. This is not a problem in a hobby situation, but would be unacceptable in a manufacturing environment.

Another probable downside is that the voltage regulation overhead would be higher than other solutions shown in this page.

TODO plot one of these myself!!!

TODO

Total supply voltage range:

Minimum voltage headroom for regulation:

Current adjustment range:

Minimum regulated current:

Maximum regulated current:

Maximum voltage delta:

Maximum power:

Does not require ground reference ("two-terminal" operation)?: Yes

Accuracy:

Reverse-voltage protection?:

Advantages:

Disadvantages:

=== Conclusion ===
As bizarre as it sounds, few choices exist for simple constant-current regulation below about 10mA, especially if adjustment is required, and tempco must be low. If several considerations are not a deal-killer, the trusty LM317L is probably best. Some solutions exist for niche applications like LED drive, but often have an unacceptably (for many applications) minimum required voltage headroom.

EEHPRT Simple Low-Current Constant-Current Sources

2022-02-18T06:16:53Z

21stCP Wiki BDFL:

=== Introduction ===
Whether driving LEDs or for transducer excitation, a need arises for a simple (ideally, two-leaded part) constant-current source which is simple to use, compact, versatile, adjustable, and has a wide span of current adjustment and excitation voltage supply range.

Unfortunately, such a part does not really exist if "small" constant current (≤20mA, even more so for ≤10mA) is desired. Several choices are available, each with its own disadvantages or limitations.

Even less choices are available if adjustment of current output is required, and/or a low tempco (temperature coefficient of changes in output without any adjustment of setpoint) is also needed.

This article primarily relies on components as currently stocked on DigiKey.

https://www.digikey.com/en/products/filter/pmic-current-regulation-management/734

TODO DK disclaimer.

=== Available Component Classes ===

==== Constant-Current Diode ====
Constant-current diodes were popular back in the day, but they are relatively rare these days (although LED-drive applications are causing a comeback, even if minimum current regulation for those who bothered to make devices is already too high at 10-20mA for state of the art modern LEDs).

We will discuss Central Semiconductor Corp CMJ series here, as a representative example for options below 10mA (more options exist for ≥10mA from onsemi et al).

Total supply voltage range: 50/100V

Minimum voltage headroom for regulation: On the order of 10V???

Current adjustment range: --

Minimum regulated current:

Maximum regulated current:

Maximum voltage delta:

Maximum power: 500mW

Does not require ground reference ("two-terminal" operation)?: Yes

Accuracy:

Reverse-voltage protection?:

Advantages:

Disadvantages: Not every current choice is available, especially exact selections like 4.0mA. Non-trivial tempco. Shitty datasheet. Large required voltage headroom???

Since these devices have a shitty datasheet, there is not much more we can determine from the datasheet. Our best understanding of what is inside these devices is that they are simply binned JFETs with controlled gate width/length, and with two terminals interconnected (see section below on making such a device yourself).

==== LM134 / LM234 ====
LM134/LM234/LM334 is a strange old device, in that its current is highly dependent on IC junction temperature. With an added diode and resistor, at total component count of four devices, tempco can be minimized but NOT eliminated to the point of acceptable standards in modern times. We suppose this device still has archaic use cases. We wish there was its equivalent with zero tempco by now!!!

Total supply voltage range: 1V to 40V

Minimum voltage headroom for regulation: 1.0V

Current adjustment range: 1μA to 10mA

Minimum regulated current: 1μA (BS cover sheet claim, too optimistic per rest of datasheet tables and plots)

Maximum regulated current: 10mA

Maximum voltage delta: 40V

Maximum power: 400mW

Does not require ground reference ("two-terminal" operation)?: Yes

Accuracy: ±3%.

Reverse-voltage protection?: Yes

Advantages: Old stuff, small headroom

Disadvantages: dependence of current output on IC junction temperature, four components required, adjustable zero-tempco operation is not practical because both resistors' value would have to be adjusted in a tracking manner.

TODO schematic

TODO modern diode

==== LM317L ====
LM317 is well-known to be capable of constant-current operation (instead of more common constant-voltage operation) with slight rearrangement of external wiring.

TODO schematic

Reading LM317 datasheet, however, the reader will realize that minimum output current is rather high at TODO.

The solution is LM317'''L''' variant. Capable of only 100mA maximum output, the minimum output current also decreases to 1.5-2.5mA.

Total supply voltage range: 35V max

Minimum voltage headroom for regulation: 2.5V

Current adjustment range: 2.5mA(max) to 100mA

Minimum regulated current: 1.5mA typical, 2.5mA maximum

Maximum regulated current: 100mA

Maximum voltage delta: 35V

Maximum power:

Does not require ground reference ("two-terminal" operation)?: Yes

Accuracy:

Reverse-voltage protection?: TODO

Advantages: Very well-known, easy to use, commonly available.

Disadvantages: Headroom voltage higher than possible with other devices. Load (or load+pull-down resistor provided in schematic) must draw a minimum current of 1.5mA for constant current source to remain in regulation. All load current passes thru setpoint resistor, thus resistor power dissipation rating must be appropriate for application.

==== Other Circuits ====
TODO

Total supply voltage range:

Minimum voltage headroom for regulation:

Current adjustment range:

Minimum regulated current:

Maximum regulated current:

Maximum voltage delta:

Maximum power:

Does not require ground reference ("two-terminal" operation)?: Yes

Accuracy:

Reverse-voltage protection?:

Advantages:

Disadvantages:

==== Discrete Circuits ====

===== Single JFET =====
[[File:JFET constant-current source.png|thumb|JFET constant-current source]]
A single JFET can be interconnected as shown to make a rather simple constant-current source, which can either be fixed or adjustable.

The first significant downside is that part selection and binning is required to obtain a particular current value. This is not a problem in a hobby situation, but would be unacceptable in a manufacturing environment.

Another probable downside is that the voltage regulation overhead would be higher than other solutions shown in this page.

TODO plot one of these myself!!!

TODO

Total supply voltage range:

Minimum voltage headroom for regulation:

Current adjustment range:

Minimum regulated current:

Maximum regulated current:

Maximum voltage delta:

Maximum power:

Does not require ground reference ("two-terminal" operation)?: Yes

Accuracy:

Reverse-voltage protection?:

Advantages:

Disadvantages:

=== Conclusion ===
As bizarre as it sounds, few choices exist for simple constant-current regulation below about 10mA, especially if adjustment is required, and tempco must be low. If several considerations are not a deal-killer, the trusty LM317L is probably best. Some solutions exist for niche applications like LED drive, but often have an unacceptably (for many applications) minimum required voltage headroom.

File:JFET constant-current source.png

2022-02-18T06:13:24Z

21stCP Wiki BDFL:

Single-JFET adjustable constant-current source.

EEHPRT Simple Low-Current Constant-Current Sources

2022-02-18T05:44:07Z

21stCP Wiki BDFL: 21stCP Wiki BDFL moved page EEHPRT Simple Constant-Current Sources to EEHPRT Simple Low-Current Constant-Current Sources without leaving a redirect

=== Introduction ===
Whether driving LEDs or for transducer excitation, a need arises for a simple (ideally, two-leaded part) constant-current source which is simple to use, compact, versatile, adjustable, and has a wide span of current adjustment and excitation voltage supply range.

Unfortunately, such a part does not really exist if "small" constant current (<20mA) is desired. Several choices are available, each with its own disadvantages or limitations.

This article primarily relies on components as currently stocked on DigiKey.

https://www.digikey.com/en/products/filter/pmic-current-regulation-management/734

TODO disclaimer.

=== Available Component Classes ===

==== Constant-Current Diode ====
Constant-current diodes were popular back in the day, but they are relatively rare these days (although LED-drive applications are causing a comeback, even if minimum current regulation for those who bothered to make devices is already too high at 10-20mA for state of the art modern LEDs).

We will discuss Central Semiconductor Corp CMJ series here, as a representative example for options below 10mA (more options exist for ≥10mA from onsemi et al).

Total supply voltage range: 50/100V

Minimum voltage headroom for regulation: On the order of 10V???

Current adjustment range: --

Minimum regulated current:

Maximum regulated current:

Maximum voltage delta:

Maximum power: 500mW

Does not require ground reference ("two-terminal" operation)?: Yes

Accuracy:

Reverse-voltage protection?:

Advantages:

Disadvantages: Not every current choice is available, especially exact selections like 4.0mA. Non-trivial tempco. Shitty datasheet. Large required voltage headroom???

Since these devices have a shitty datasheet, there is not much more we can determine from the datasheet. Our best understanding of what is inside these devices is that they are simply binned JFETs with controlled gate width/length, and with two terminals interconnected (see section below on making such a device yourself).

==== LM134 / LM234 ====
LM134/LM234/LM334 is a strange old device, in that its current is highly dependent on IC junction temperature. With an added diode and resistor, at total component count of four devices, tempco can be minimized but NOT eliminated to the point of acceptable standards in modern times. We suppose this device still has archaic use cases. We wish there was its equivalent with zero tempco by now!!!

Total supply voltage range: 1V to 40V

Minimum voltage headroom for regulation: 1.0V

Current adjustment range: 1μA to 10mA

Minimum regulated current: 1μA (BS cover sheet claim, too optimistic per rest of datasheet tables and plots)

Maximum regulated current: 10mA

Maximum voltage delta: 40V

Maximum power: 400mW

Does not require ground reference ("two-terminal" operation)?: Yes

Accuracy: ±3%.

Reverse-voltage protection?: Yes

Advantages: Old stuff, small headroom

Disadvantages: dependence of current output on IC junction temperature, four components required, adjustable zero-tempco operation is not practical because both resistors' value would have to be adjusted in a tracking manner.

TODO schematic

TODO modern diode

==== LM317L ====
LM317 is well-known to be capable of constant-current operation (instead of more common constant-voltage operation) with slight rearrangement of external wiring.

TODO schematic

Reading LM317 datasheet, however, the reader will realize that minimum output current is rather high at TODO.

The solution is LM317'''L''' variant. Capable of only 100mA maximum output, the minimum output current also decreases to 1.5-2.5mA.

Total supply voltage range: 35V max

Minimum voltage headroom for regulation: 2.5V

Current adjustment range: 2.5mA(max) to 100mA

Minimum regulated current: 1.5mA typical, 2.5mA maximum

Maximum regulated current: 100mA

Maximum voltage delta: 35V

Maximum power:

Does not require ground reference ("two-terminal" operation)?: Yes

Accuracy:

Reverse-voltage protection?: TODO

Advantages: Very well-known, easy to use, commonly available.

Disadvantages: Headroom voltage higher than possible with other devices. Load (or load+pull-down resistor provided in schematic) must draw a minimum current of 1.5mA for constant current source to remain in regulation. All load current passes thru setpoint resistor, thus resistor power dissipation rating must be appropriate for application.

==== Other Circuits ====
TODO

Total supply voltage range:

Minimum voltage headroom for regulation:

Current adjustment range:

Minimum regulated current:

Maximum regulated current:

Maximum voltage delta:

Maximum power:

Does not require ground reference ("two-terminal" operation)?: Yes

Accuracy:

Reverse-voltage protection?:

Advantages:

Disadvantages:

==== Discrete Circuits ====

===== Single JFET =====

TODO

Total supply voltage range:

Minimum voltage headroom for regulation:

Current adjustment range:

Minimum regulated current:

Maximum regulated current:

Maximum voltage delta:

Maximum power:

Does not require ground reference ("two-terminal" operation)?: Yes

Accuracy:

Reverse-voltage protection?:

Advantages:

Disadvantages:

EEHPRT Simple Low-Current Constant-Current Sources

2022-02-18T05:41:16Z

21stCP Wiki BDFL: /* LM134 / LM234 */

=== Introduction ===
Whether driving LEDs or for transducer excitation, a need arises for a simple (ideally, two-leaded part) constant-current source which is simple to use, compact, versatile, adjustable, and has a wide span of current adjustment and excitation voltage supply range.

Unfortunately, such a part does not really exist if "small" constant current (<20mA) is desired. Several choices are available, each with its own disadvantages or limitations.

This article primarily relies on components as currently stocked on DigiKey.

https://www.digikey.com/en/products/filter/pmic-current-regulation-management/734

TODO disclaimer.

=== Available Component Classes ===

==== Constant-Current Diode ====
Constant-current diodes were popular back in the day, but they are relatively rare these days (although LED-drive applications are causing a comeback, even if minimum current regulation for those who bothered to make devices is already too high at 10-20mA for state of the art modern LEDs).

We will discuss Central Semiconductor Corp CMJ series here, as a representative example for options below 10mA (more options exist for ≥10mA from onsemi et al).

Total supply voltage range: 50/100V

Minimum voltage headroom for regulation: On the order of 10V???

Current adjustment range: --

Minimum regulated current:

Maximum regulated current:

Maximum voltage delta:

Maximum power: 500mW

Does not require ground reference ("two-terminal" operation)?: Yes

Accuracy:

Reverse-voltage protection?:

Advantages:

Disadvantages: Not every current choice is available, especially exact selections like 4.0mA. Non-trivial tempco. Shitty datasheet. Large required voltage headroom???

Since these devices have a shitty datasheet, there is not much more we can determine from the datasheet. Our best understanding of what is inside these devices is that they are simply binned JFETs with controlled gate width/length, and with two terminals interconnected (see section below on making such a device yourself).

==== LM134 / LM234 ====
LM134/LM234/LM334 is a strange old device, in that its current is highly dependent on IC junction temperature. With an added diode and resistor, at total component count of four devices, tempco can be minimized but NOT eliminated to the point of acceptable standards in modern times. We suppose this device still has archaic use cases. We wish there was its equivalent with zero tempco by now!!!

Total supply voltage range: 1V to 40V

Minimum voltage headroom for regulation: 1.0V

Current adjustment range: 1μA to 10mA

Minimum regulated current: 1μA (BS cover sheet claim, too optimistic per rest of datasheet tables and plots)

Maximum regulated current: 10mA

Maximum voltage delta: 40V

Maximum power: 400mW

Does not require ground reference ("two-terminal" operation)?: Yes

Accuracy: ±3%.

Reverse-voltage protection?: Yes

Advantages: Old stuff, small headroom

Disadvantages: dependence of current output on IC junction temperature, four components required, adjustable zero-tempco operation is not practical because both resistors' value would have to be adjusted in a tracking manner.

TODO schematic

TODO modern diode

==== LM317L ====
LM317 is well-known to be capable of constant-current operation (instead of more common constant-voltage operation) with slight rearrangement of external wiring.

TODO schematic

Reading LM317 datasheet, however, the reader will realize that minimum output current is rather high at TODO.

The solution is LM317'''L''' variant. Capable of only 100mA maximum output, the minimum output current also decreases to 1.5-2.5mA.

Total supply voltage range: 35V max

Minimum voltage headroom for regulation: 2.5V

Current adjustment range: 2.5mA(max) to 100mA

Minimum regulated current: 1.5mA typical, 2.5mA maximum

Maximum regulated current: 100mA

Maximum voltage delta: 35V

Maximum power:

Does not require ground reference ("two-terminal" operation)?: Yes

Accuracy:

Reverse-voltage protection?: TODO

Advantages: Very well-known, easy to use, commonly available.

Disadvantages: Headroom voltage higher than possible with other devices. Load (or load+pull-down resistor provided in schematic) must draw a minimum current of 1.5mA for constant current source to remain in regulation. All load current passes thru setpoint resistor, thus resistor power dissipation rating must be appropriate for application.

==== Other Circuits ====
TODO

Total supply voltage range:

Minimum voltage headroom for regulation:

Current adjustment range:

Minimum regulated current:

Maximum regulated current:

Maximum voltage delta:

Maximum power:

Does not require ground reference ("two-terminal" operation)?: Yes

Accuracy:

Reverse-voltage protection?:

Advantages:

Disadvantages:

==== Discrete Circuits ====

===== Single JFET =====

TODO

Total supply voltage range:

Minimum voltage headroom for regulation:

Current adjustment range:

Minimum regulated current:

Maximum regulated current:

Maximum voltage delta:

Maximum power:

Does not require ground reference ("two-terminal" operation)?: Yes

Accuracy:

Reverse-voltage protection?:

Advantages:

Disadvantages:

EEHPRT Simple Low-Current Constant-Current Sources

2022-02-18T05:36:45Z

21stCP Wiki BDFL: /* Constant-Current Diode */

=== Introduction ===
Whether driving LEDs or for transducer excitation, a need arises for a simple (ideally, two-leaded part) constant-current source which is simple to use, compact, versatile, adjustable, and has a wide span of current adjustment and excitation voltage supply range.

Unfortunately, such a part does not really exist if "small" constant current (<20mA) is desired. Several choices are available, each with its own disadvantages or limitations.

This article primarily relies on components as currently stocked on DigiKey.

https://www.digikey.com/en/products/filter/pmic-current-regulation-management/734

TODO disclaimer.

=== Available Component Classes ===

==== Constant-Current Diode ====
Constant-current diodes were popular back in the day, but they are relatively rare these days (although LED-drive applications are causing a comeback, even if minimum current regulation for those who bothered to make devices is already too high at 10-20mA for state of the art modern LEDs).

We will discuss Central Semiconductor Corp CMJ series here, as a representative example for options below 10mA (more options exist for ≥10mA from onsemi et al).

Total supply voltage range: 50/100V

Minimum voltage headroom for regulation: On the order of 10V???

Current adjustment range: --

Minimum regulated current:

Maximum regulated current:

Maximum voltage delta:

Maximum power: 500mW

Does not require ground reference ("two-terminal" operation)?: Yes

Accuracy:

Reverse-voltage protection?:

Advantages:

Disadvantages: Not every current choice is available, especially exact selections like 4.0mA. Non-trivial tempco. Shitty datasheet. Large required voltage headroom???

Since these devices have a shitty datasheet, there is not much more we can determine from the datasheet. Our best understanding of what is inside these devices is that they are simply binned JFETs with controlled gate width/length, and with two terminals interconnected (see section below on making such a device yourself).

==== LM134 / LM234 ====
LM134/LM234/LM334 is a strange old device, in that its current is highly dependent on IC junction temperature. With an added diode and resistor, at total component count of four devices, tempco can be minimized but NOT eliminated to the point of acceptable standards in modern times. We suppose this device still has archaic use cases. We wish there was its equivalent with zero tempco by now!!!

Total supply voltage range: 1V to 40V

Minimum voltage headroom for regulation: 1.0V

Current adjustment range: 1μA to 10mA

Minimum regulated current: 1μA (BS cover sheet claim, too optimistic per rest of datasheet tables and plots)

Maximum regulated current: 10mA

Maximum voltage delta: 40V

Maximum power: 400mW

Does not require ground reference ("two-terminal" operation)?: Yes

Accuracy: ±3%.

Reverse-voltage protection?: Yes

Advantages: Old stuff, small headroom

Disadvantages: dependence of current output on IC junction temperature, four components required.

TODO schematic

TODO modern diode

==== LM317L ====
LM317 is well-known to be capable of constant-current operation (instead of more common constant-voltage operation) with slight rearrangement of external wiring.

TODO schematic

Reading LM317 datasheet, however, the reader will realize that minimum output current is rather high at TODO.

The solution is LM317'''L''' variant. Capable of only 100mA maximum output, the minimum output current also decreases to 1.5-2.5mA.

Total supply voltage range: 35V max

Minimum voltage headroom for regulation: 2.5V

Current adjustment range: 2.5mA(max) to 100mA

Minimum regulated current: 1.5mA typical, 2.5mA maximum

Maximum regulated current: 100mA

Maximum voltage delta: 35V

Maximum power:

Does not require ground reference ("two-terminal" operation)?: Yes

Accuracy:

Reverse-voltage protection?: TODO

Advantages: Very well-known, easy to use, commonly available.

Disadvantages: Headroom voltage higher than possible with other devices. Load (or load+pull-down resistor provided in schematic) must draw a minimum current of 1.5mA for constant current source to remain in regulation. All load current passes thru setpoint resistor, thus resistor power dissipation rating must be appropriate for application.

==== Other Circuits ====
TODO

Total supply voltage range:

Minimum voltage headroom for regulation:

Current adjustment range:

Minimum regulated current:

Maximum regulated current:

Maximum voltage delta:

Maximum power:

Does not require ground reference ("two-terminal" operation)?: Yes

Accuracy:

Reverse-voltage protection?:

Advantages:

Disadvantages:

==== Discrete Circuits ====

===== Single JFET =====

TODO

Total supply voltage range:

Minimum voltage headroom for regulation:

Current adjustment range:

Minimum regulated current:

Maximum regulated current:

Maximum voltage delta:

Maximum power:

Does not require ground reference ("two-terminal" operation)?: Yes

Accuracy:

Reverse-voltage protection?:

Advantages:

Disadvantages:

EEHPRT Simple Low-Current Constant-Current Sources

2022-02-18T05:13:50Z

21stCP Wiki BDFL: /* LM317L */

EEHPRT Simple Low-Current Constant-Current Sources

2022-02-18T04:52:31Z

21stCP Wiki BDFL: /* LM134/LM234/LM334 */

EEHPRT Simple Low-Current Constant-Current Sources

2022-02-18T04:42:30Z

21stCP Wiki BDFL: /* LM134/LM234/LM334 */

EEHPRT Simple Low-Current Constant-Current Sources

2022-02-18T04:32:43Z

21stCP Wiki BDFL:

EEHPRT Simple Low-Current Constant-Current Sources

2022-02-18T04:25:41Z

21stCP Wiki BDFL:

EEHPRT Simple Low-Current Constant-Current Sources

2022-02-18T04:21:36Z

21stCP Wiki BDFL:

Whether driving LEDs or for transducer excitation, a need arises for a simple (ideally, two-leaded part) constant-current source which is simple to use, compact, versatile, adjustable, and has a wide span of current adjustment and excitation voltage supply range.

EEHPRT Simple Low-Current Constant-Current Sources

2022-02-18T04:20:12Z

21stCP Wiki BDFL: Created page with "asdf"

asdf

Article Prefix Breakdown

2022-02-18T04:19:38Z

21stCP Wiki BDFL: /* Electrical Hardware Engineering Team: */

=== Introduction ===
For ease of determining article type at a glance on a website which is "cross-disciplinary", we are using the following article prefixes to distinguish pages, and make them easier to locate for cross-linking, organization, or during searching. This categorization also demonstrates rigorous, industrial engineering process, and will be of interest to others. The listing is roughly from top(high)-level description to bottom(low)-level description:

=== Executive Department: ===
EEPROJ: Electronics Engineering Project

=== Engineering Department: ===

==== Systems Engineering Team: ====
EEPRS: Electronics Engineering Project Requirements Specification

EESLD: Electronics Engineering [Project], System Level Description/Design/Diagram

==== Electrical Hardware Engineering Team: ====
EEHRS: Electronics Engineering [Project], Hardware Requirements Specification

...implementation

EEHDSGN: Generic Electronics Engineering Hardware Design Article

EEHPRT: Electronics Engineering Hardware Part (IC)-related (IC choice, IC discussion, etc)

EESCH: Electronics Engineering [Project], [Electrical] Schematic

EEART: Electronics Engineering [Project], PCB Artwork

EEBOM: Electronics Engineering [Project], [Schematic] Bill of Materials

==== Embedded Software Engineering Team: ====
EESRS: Electronics Engineering [Project], Software Requirements Specification

...implementation

EESW: Electronics Engineering [Project], Software [Release]

==== Electrical Test Team: ====
EEDATP: Electronics Engineering [Project], Design Assurance Testing Plan

EEDATR: Electronics Engineering [Project], Design Assurance Testing Report

EEQUALP: Electronics Engineering [Project], Qualification Testing Plan

EEQUALR: Electronics Engineering [Project], Qualification Testing Report

=== Electrical Production Department: ===

EEPROJ MCU, FPGA Evaluation Boards Variants

2022-02-05T05:44:49Z

21stCP Wiki BDFL:

=== Introduction ===
TODO

=== Variants Table ===
{| class="wikitable" style="text-align: center
|+'''EEPROJ MCU, FPGA Evaluation Boards Variants'''
!Manufacturer
!Family
!IC
!Package
!Pinout
!Why chosen
!Target
!Priority
!21stCP PN
!Status
|-
| colspan="10" |'''MCU Development / Evaluation Boards'''
|-
|STMicroelectronics
|M4F
|STM32F469NIH6
|TFBGA
0.8mm
|216
|Linux support, pinout, open source hardware, 32F469IDISCOVERY
|Self,
FPGA-MCU Dev Board
|style="background: green;"| '''HIGH'''
|
|
|-
|STMicroelectronics
|M4F
|STM32F469BIT6
|TQFP
|208
|
|Community,
Common Platform
|style="background: green;"| '''HIGH'''
|
|
|-
|STMicroelectronics
|M7
|
|BGA
|
|
|Self,
FPGA-MCU Dev Board
|Medium
|
|
|-
|STMicroelectronics
|M7
|
|TQFP
|
|
|Community
|Low
|
|
|-
|Microchip Technology
|M4F
|ATSAME54P20A-CTUT
|BGA
|120
|
|Self,
FPGA-MCU Dev Board
|Medium
|
|
|-
|Microchip Technology
|M4F
|ATSAME54P20A-AU
|TQFP
|128
|
|Community,
Common Platform
|style="background: green;"| '''HIGH'''
|
|
|-
|Microchip Technology
|M7
|
|BGA
|144
|
|Self,
FPGA-MCU Dev Board
|Low
|
|
|-
|Microchip Technology
|M7
|
|TQFP
|144
|
|Community
|Low
|
|
|-
|NXP (TODO)
|
|
|
|
|
|
|
|
|
|-
| colspan="10" |'''FPGA Development / Evaluation Boards'''
|-
|Lattice Semiconductor
|MachXO2
|
|TQFP
|
|Last non-BGA in MachXO series
|Community
|Low
|
|
|-
|Lattice Semiconductor
|MachXO3D/LF
|LCMXO3D-9400HC-6BG256I
|LFBGA
0.8mm
|256
|Flash-based, little competition, low-cost devices
|Self,
FPGA-MCU Dev Board
|style="background: green;"| '''HIGH'''
|
|
|-
|Lattice Semiconductor
|ECP5
|
|
|
|
|Self,
FPGA-MCU Dev Board
|Medium
|
|
|-
| colspan="10" |'''FPGA-MCU Development / Evaluation Boards'''
|-
|FPGA-MCU Dev Board Lite
|STMicroelectronics M4F + Lattice Semiconductor MachXO3D
|STM32F469NIH6 + LCMXO3D-9400HC-6BG256I
|
|
|
|
|style="background: green;"| '''HIGH'''
|
|
|-
|FPGA-MCU Dev Board Lite
|Microchip M4F + Lattice Semiconductor MachXO3D
|
|
|
|
|
|Medium
|
|
|-
|FPGA-MCU Dev Board Advanced (STMicroelectronics M7 + Lattice Semiconductor ECP5)
|M7 + ECP5
|
|
|
|
|
|Medium
|
|
|-
|FPGA-MCU Dev Board Ultra
|
|
|
|
|
|
|Low
|
|
|-
|
|
|
|
|
|
|
|
|
|
|}

EEPROJ MCU, FPGA Evaluation Boards Variants

2022-02-05T04:31:24Z

21stCP Wiki BDFL:

=== Introduction ===
TODO

=== Variants Table ===
{| class="wikitable" style="text-align: center
|+'''EEPROJ MCU, FPGA Evaluation Boards Variants'''
!Manufacturer
!Family
!IC
!Package
!Pinout
!Why chosen
!Target
!Priority
!21stCP PN
!Status
|-
| colspan="10" |'''MCU Development / Evaluation Boards'''
|-
|STMicroelectronics
|M4F
|STM32F469NIH6
|TFBGA
0.8mm
|216
|Linux support, pinout, open source hardware, 32F469IDISCOVERY
|Self,
FPGA-MCU Dev Board
|style="background: green;"| '''HIGH'''
|
|
|-
|STMicroelectronics
|M4F
|STM32F469BIT6
|TQFP
|208
|
|Community,
Common Platform
|style="background: green;"| '''HIGH'''
|
|
|-
|STMicroelectronics
|M7
|
|BGA
|
|
|Self,
FPGA-MCU Dev Board
|Medium
|
|
|-
|STMicroelectronics
|M7
|
|TQFP
|
|
|Community
|Low
|
|
|-
|Microchip Technology
|M4F
|ATSAME54P20A-CTUT
|BGA
|120
|
|Self,
FPGA-MCU Dev Board
|Medium
|
|
|-
|Microchip Technology
|M4F
|ATSAME54P20A-AU
|TQFP
|128
|
|Community,
Common Platform
|style="background: green;"| '''HIGH'''
|
|
|-
|Microchip Technology
|M7
|
|BGA
|
|
|Self,
FPGA-MCU Dev Board
|Low
|
|
|-
|Microchip Technology
|M7
|
|TQFP
|
|
|Community
|Low
|
|
|-
|NXP (TODO)
|
|
|
|
|
|
|
|
|
|-
| colspan="10" |'''FPGA Development / Evaluation Boards'''
|-
|Lattice Semiconductor
|MachXO2
|
|TQFP
|
|Last non-BGA in MachXO series
|Community
|Low
|
|
|-
|Lattice Semiconductor
|MachXO3D/LF
|LCMXO3D-9400HC-6BG256I
|LFBGA
0.8mm
|256
|Flash-based, little competition, low-cost devices
|Self,
FPGA-MCU Dev Board
|style="background: green;"| '''HIGH'''
|
|
|-
|Lattice Semiconductor
|ECP5
|
|
|
|
|Self,
FPGA-MCU Dev Board
|Medium
|
|
|-
| colspan="10" |'''FPGA-MCU Development / Evaluation Boards'''
|-
|FPGA-MCU Dev Board Lite
|STMicroelectronics M4F + Lattice Semiconductor MachXO3D
|STM32F469NIH6 + LCMXO3D-9400HC-6BG256I
|
|
|
|
|style="background: green;"| '''HIGH'''
|
|
|-
|FPGA-MCU Dev Board Lite
|Microchip M4F + Lattice Semiconductor MachXO3D
|
|
|
|
|
|Medium
|
|
|-
|FPGA-MCU Dev Board Advanced (STMicroelectronics M7 + Lattice Semiconductor ECP5)
|M7 + ECP5
|
|
|
|
|
|Medium
|
|
|-
|FPGA-MCU Dev Board Ultra
|
|
|
|
|
|
|Low
|
|
|-
|
|
|
|
|
|
|
|
|
|
|}

EEPROJ MCU, FPGA Evaluation Boards Variants

2022-02-05T04:28:48Z

21stCP Wiki BDFL:

=== Introduction ===
TODO

=== Variants Table ===
{| class="wikitable" style="text-align: center
|+'''EEPROJ MCU, FPGA Evaluation Boards Variants'''
!Manufacturer
!Family
!IC
!Package
!Pinout
!Why chosen
!Target
!Priority
!21stCP PN
!Status
|-
| colspan="10" |'''MCU Development / Evaluation Boards'''
|-
|STMicroelectronics
|M4F
|STM32F469NIH6
|BGA
|216
|Linux support, pinout, open source hardware, 32F469IDISCOVERY
|Self,
FPGA-MCU Dev Board
|style="background: green;"| '''HIGH'''
|
|
|-
|STMicroelectronics
|M4F
|STM32F469BIT6
|TQFP
|208
|
|Community,
Common Platform
|style="background: green;"| '''HIGH'''
|
|
|-
|STMicroelectronics
|M7
|
|BGA
|
|
|Self,
FPGA-MCU Dev Board
|Medium
|
|
|-
|STMicroelectronics
|M7
|
|TQFP
|
|
|Community
|Low
|
|
|-
|Microchip Technology
|M4F
|ATSAME54P20A-CTUT
|BGA
|120
|
|Self,
FPGA-MCU Dev Board
|Medium
|
|
|-
|Microchip Technology
|M4F
|ATSAME54P20A-AU
|TQFP
|128
|
|Community,
Common Platform
|style="background: green;"| '''HIGH'''
|
|
|-
|Microchip Technology
|M7
|
|BGA
|
|
|Self,
FPGA-MCU Dev Board
|Low
|
|
|-
|Microchip Technology
|M7
|
|TQFP
|
|
|Community
|Low
|
|
|-
|NXP (TODO)
|
|
|
|
|
|
|
|
|
|-
| colspan="10" |'''FPGA Development / Evaluation Boards'''
|-
|Lattice Semiconductor
|MachXO2
|
|TQFP
|
|Last non-BGA in MachXO series
|Community
|Low
|
|
|-
|Lattice Semiconductor
|MachXO3D/LF
|LCMXO3D-9400HC-6BG256I
|LFBGA
0.8mm
|256
|Flash-based, little competition, low-cost devices
|Self,
FPGA-MCU Dev Board
|style="background: green;"| '''HIGH'''
|
|
|-
|Lattice Semiconductor
|ECP5
|
|
|
|
|Self,
FPGA-MCU Dev Board
|Medium
|
|
|-
| colspan="10" |'''FPGA-MCU Development / Evaluation Boards'''
|-
|FPGA-MCU Dev Board Lite
|STMicroelectronics M4F + Lattice Semiconductor MachXO3D
|STM32F469NIH6 + LCMXO3D-9400HC-6BG256I
|
|
|
|
|style="background: green;"| '''HIGH'''
|
|
|-
|FPGA-MCU Dev Board Lite
|Microchip M4F + Lattice Semiconductor MachXO3D
|
|
|
|
|
|Medium
|
|
|-
|FPGA-MCU Dev Board Advanced (STMicroelectronics M7 + Lattice Semiconductor ECP5)
|M7 + ECP5
|
|
|
|
|
|Medium
|
|
|-
|FPGA-MCU Dev Board Ultra
|
|
|
|
|
|
|Low
|
|
|-
|
|
|
|
|
|
|
|
|
|
|-
|
|
|
|
|
|
|
|
|
|
|}

EEPROJ MCU, FPGA Evaluation Boards Variants

2022-02-05T04:18:33Z

21stCP Wiki BDFL:

=== Introduction ===
TODO

=== Variants Table ===
{| class="wikitable" style="text-align: center
|+'''EEPROJ MCU, FPGA Evaluation Boards Variants'''
!Manufacturer
!Family
!IC
!Package
!Pinout
!Why chosen
!Target
!Priority
!21stCP PN
!Status
|-
| colspan="10" |'''MCU Development / Evaluation Boards'''
|-
|STMicroelectronics
|M4F
|STM32F469NIH6
|BGA
|216
|Linux support, pinout, open source hardware
|Self,
FPGA-MCU Dev Board
|style="background: green;"| '''HIGH'''
|
|
|-
|STMicroelectronics
|M4F
|STM32F469BIT6
|TQFP
|208
|
|Community,
Common Platform
|style="background: green;"| '''HIGH'''
|
|
|-
|STMicroelectronics
|M7
|
|BGA
|
|
|Self,
FPGA-MCU Dev Board
|Medium
|
|
|-
|STMicroelectronics
|M7
|
|TQFP
|
|
|Community
|Low
|
|
|-
|Microchip Technology
|M4F
|ATSAME54P20A-CTUT
|BGA
|120
|
|Self,
FPGA-MCU Dev Board
|Medium
|
|
|-
|Microchip Technology
|M4F
|ATSAME54P20A-AU
|TQFP
|128
|
|Community,
Common Platform
|style="background: green;"| '''HIGH'''
|
|
|-
|Microchip Technology
|M7
|
|BGA
|
|
|Self,
FPGA-MCU Dev Board
|Low
|
|
|-
|Microchip Technology
|M7
|
|TQFP
|
|
|Community
|Low
|
|
|-
|NXP (TODO)
|
|
|
|
|
|
|
|
|
|-
| colspan="10" |'''FPGA Development / Evaluation Boards'''
|-
|Lattice Semiconductor
|MachXO2
|
|TQFP
|
|Last non-BGA in MachXO series
|Community
|Low
|
|
|-
|Lattice Semiconductor
|MachXO3D/LF
|
|
|
|
|Self,
FPGA-MCU Dev Board
|style="background: green;"| '''HIGH'''
|
|
|-
|Lattice Semiconductor
|ECP5
|
|
|
|
|Self,
FPGA-MCU Dev Board
|Medium
|
|
|-
| colspan="10" |'''FPGA-MCU Development / Evaluation Boards'''
|-
|FPGA-MCU Dev Board Lite
|STMicroelectronics M4F + Lattice Semiconductor MachXO3D
|
|
|
|
|
|style="background: green;"| '''HIGH'''
|
|
|-
|FPGA-MCU Dev Board Lite
|Microchip M4F + Lattice Semiconductor MachXO3D
|
|
|
|
|
|Medium
|
|
|-
|FPGA-MCU Dev Board Advanced (STMicroelectronics M7 + Lattice Semiconductor ECP5)
|M7 + ECP5
|
|
|
|
|
|Medium
|
|
|-
|FPGA-MCU Dev Board Ultra
|
|
|
|
|
|
|Low
|
|
|-
|
|
|
|
|
|
|
|
|
|
|-
|
|
|
|
|
|
|
|
|
|
|}

EEPROJ MCU, FPGA Evaluation Boards Variants

2022-02-05T04:16:26Z

21stCP Wiki BDFL:

=== Introduction ===
TODO

=== Variants Table ===
{| class="wikitable" style="text-align: center
|+'''EEPROJ MCU, FPGA Evaluation Boards Variants'''
!Manufacturer
!Family
!IC
!Package
!Pinout
!Why chosen
!Target
!Priority
!21stCP PN
!Status
|-
| colspan="10" |'''MCU Development / Evaluation Boards'''
|-
|STMicroelectronics
|M4F
|STM32F469NIH6
|BGA
|216
|Linux support, pinout, open source hardware
|Self,
FPGA-MCU Dev Board
|'''HIGH'''
|
|
|-
|STMicroelectronics
|M4F
|STM32F469BIT6
|TQFP
|208
|
|Community,
Common Platform
|'''HIGH'''
|
|
|-
|STMicroelectronics
|M7
|
|BGA
|
|
|Self,
FPGA-MCU Dev Board
|Medium
|
|
|-
|STMicroelectronics
|M7
|
|TQFP
|
|
|Community
|Low
|
|
|-
|Microchip Technology
|M4F
|ATSAME54P20A-CTUT
|BGA
|120
|
|Self,
FPGA-MCU Dev Board
|Medium
|
|
|-
|Microchip Technology
|M4F
|ATSAME54P20A-AU
|TQFP
|128
|
|Community,
Common Platform
|'''HIGH'''
|
|
|-
|Microchip Technology
|M7
|
|BGA
|
|
|Self,
FPGA-MCU Dev Board
|Low
|
|
|-
|Microchip Technology
|M7
|
|TQFP
|
|
|Community
|Low
|
|
|-
|NXP (TODO)
|
|
|
|
|
|
|
|
|
|-
| colspan="10" |'''FPGA Development / Evaluation Boards'''
|-
|Lattice Semiconductor
|MachXO2
|
|TQFP
|
|Last non-BGA in MachXO series
|Community
|Low
|
|
|-
|Lattice Semiconductor
|MachXO3D/LF
|
|
|
|
|Self,
FPGA-MCU Dev Board
|'''HIGH'''
|
|
|-
|Lattice Semiconductor
|ECP5
|
|
|
|
|Self,
FPGA-MCU Dev Board
|Medium
|
|
|-
| colspan="10" |'''FPGA-MCU Development / Evaluation Boards'''
|-
|FPGA-MCU Dev Board Lite
|STMicroelectronics M4F + Lattice Semiconductor MachXO3D
|
|
|
|
|
|'''HIGH'''
|
|
|-
|FPGA-MCU Dev Board Lite
|Microchip M4F + Lattice Semiconductor MachXO3D
|
|
|
|
|
|Medium
|
|
|-
|FPGA-MCU Dev Board Advanced (STMicroelectronics M7 + Lattice Semiconductor ECP5)
|M7 + ECP5
|
|
|
|
|
|Medium
|
|
|-
|FPGA-MCU Dev Board Ultra
|
|
|
|
|
|
|Low
|
|
|-
|
|
|
|
|
|
|
|
|
|
|-
|
|
|
|
|
|
|
|
|
|
|}

EEPROJ MCU, FPGA Evaluation Boards Variants

2022-02-05T04:15:31Z

21stCP Wiki BDFL:

=== Introduction ===
TODO

=== Variants Table ===
{| class="wikitable"
|+'''EEPROJ MCU, FPGA Evaluation Boards Variants'''
!Manufacturer
!Family
!IC
!Package
!Pinout
!Why chosen
!Target
!Priority
!21stCP PN
!Status
|-
| colspan="10" |'''MCU Development / Evaluation Boards'''
|-
|STMicroelectronics
|M4F
|STM32F469NIH6
|BGA
|216
|Linux support, pinout, open source hardware
|Self,
FPGA-MCU Dev Board
|'''HIGH'''
|
|
|-
|STMicroelectronics
|M4F
|STM32F469BIT6
|TQFP
|208
|
|Community,
Common Platform
|'''HIGH'''
|
|
|-
|STMicroelectronics
|M7
|
|BGA
|
|
|Self,
FPGA-MCU Dev Board
|Medium
|
|
|-
|STMicroelectronics
|M7
|
|TQFP
|
|
|Community
|Low
|
|
|-
|Microchip Technology
|M4F
|ATSAME54P20A-CTUT
|BGA
|120
|
|Self,
FPGA-MCU Dev Board
|Medium
|
|
|-
|Microchip Technology
|M4F
|ATSAME54P20A-AU
|TQFP
|128
|
|Community,
Common Platform
|'''HIGH'''
|
|
|-
|Microchip Technology
|M7
|
|BGA
|
|
|Self,
FPGA-MCU Dev Board
|Low
|
|
|-
|Microchip Technology
|M7
|
|TQFP
|
|
|Community
|Low
|
|
|-
|NXP (TODO)
|
|
|
|
|
|
|
|
|
|-
| colspan="10" |'''FPGA Development / Evaluation Boards'''
|-
|Lattice Semiconductor
|MachXO2
|
|TQFP
|
|Last non-BGA in MachXO series
|Community
|Low
|
|
|-
|Lattice Semiconductor
|MachXO3D/LF
|
|
|
|
|Self,
FPGA-MCU Dev Board
|'''HIGH'''
|
|
|-
|Lattice Semiconductor
|ECP5
|
|
|
|
|Self,
FPGA-MCU Dev Board
|Medium
|
|
|-
| colspan="10" |'''FPGA-MCU Development / Evaluation Boards'''
|-
|FPGA-MCU Dev Board Lite
|STMicroelectronics M4F + Lattice Semiconductor MachXO3D
|
|
|
|
|
|'''HIGH'''
|
|
|-
|FPGA-MCU Dev Board Lite
|Microchip M4F + Lattice Semiconductor MachXO3D
|
|
|
|
|
|Medium
|
|
|-
|FPGA-MCU Dev Board Advanced (STMicroelectronics M7 + Lattice Semiconductor ECP5)
|M7 + ECP5
|
|
|
|
|
|Medium
|
|
|-
|FPGA-MCU Dev Board Ultra
|
|
|
|
|
|
|Low
|
|
|-
|
|
|
|
|
|
|
|
|
|
|-
|
|
|
|
|
|
|
|
|
|
|}

EEPROJ MCU, FPGA Evaluation Boards Variants

2022-02-05T04:04:07Z

21stCP Wiki BDFL:

=== Introduction ===
TODO

=== Variants Table ===
{| class="wikitable"
|+'''EEPROJ MCU, FPGA Evaluation Boards Variants'''
!Manufacturer
!Family
!IC
!Package
!Pinout
!Why chosen
!Target
!Priority
!21stCP PN
!Status
|-
| colspan="10" |'''MCU Development / Evaluation Boards'''
|-
|STMicroelectronics
|M4F
|'''STM32F469NIH6'''
|BGA
|216
|Linux support, pinout, open source hardware
|Self,
FPGA-MCU Dev Board
|HIGH
|
|
|-
|STMicroelectronics
|M4F
|'''STM32F469BIT6'''
|TQFP
|208
|
|Community,
Common Platform
|Medium
|
|
|-
|STMicroelectronics
|M7
|
|BGA
|
|
|Self,
FPGA-MCU Dev Board
|
|
|
|-
|STMicroelectronics
|M7
|
|TQFP
|
|
|
|
|
|
|-
|Microchip Technology
|M4F
|'''ATSAME54P20A-CTUT'''
|BGA
|120
|
|Self,
FPGA-MCU Dev Board
|
|
|
|-
|Microchip Technology
|M4F
|'''ATSAME54P20A-AU'''
|TQFP
|128
|
|Community,
Common Platform
|
|
|
|-
|Microchip Technology
|M7
|
|BGA
|
|
|Self,
FPGA-MCU Dev Board
|
|
|
|-
|Microchip Technology
|M7
|
|TQFP
|
|
|Community
|
|
|
|-
|NXP (TODO)
|
|
|
|
|
|
|
|
|
|-
| colspan="10" |'''FPGA Development / Evaluation Boards'''
|-
|Lattice Semiconductor
|MachXO2
|
|TQFP
|
|Last non-BGA in MachXO series
|Community
|
|
|
|-
|Lattice Semiconductor
|MachXO3D/LF
|
|
|
|
|Self,
FPGA-MCU Dev Board
|HIGH
|
|
|-
|Lattice Semiconductor
|ECP5
|
|
|
|
|Self,
FPGA-MCU Dev Board
|Medium
|
|
|-
| colspan="10" |'''FPGA-MCU Development / Evaluation Boards'''
|-
|FPGA-MCU Dev Board Lite
|STMicroelectronics M4F + Lattice Semiconductor MachXO3D
|
|
|
|
|
|HIGH
|
|
|-
|FPGA-MCU Dev Board Lite
|Microchip M4F + Lattice Semiconductor MachXO3D
|
|
|
|
|
|
|
|
|-
|FPGA-MCU Dev Board Advanced (STMicroelectronics M7 + Lattice Semiconductor ECP5)
|M7 + ECP5
|
|
|
|
|
|Medium
|
|
|-
|FPGA-MCU Dev Board Ultra
|
|
|
|
|
|
|Low
|
|
|-
|
|
|
|
|
|
|
|
|
|
|-
|
|
|
|
|
|
|
|
|
|
|}

EEPROJ MCU, FPGA Evaluation Boards Variants

2022-02-05T03:34:24Z

21stCP Wiki BDFL:

=== Introduction ===
TODO

=== Variants Table ===
{| class="wikitable"
|+'''EEPROJ MCU, FPGA Evaluation Boards Variants'''
!Manufacturer
!Family
!IC
!Package
!Pinout
!Why chosen
!Target
!Priority
!21stCP PN
!Status
|-
| colspan="10" |'''MCU Development / Evaluation Boards'''
|-
|STMicroelectronics
|M4F
|
|BGA
|
|Linux support, pinout, open source hardware
|Self,
FPGA-MCU Dev Board
|HIGH
|
|
|-
|STMicroelectronics
|M4F
|
|TQFP
|
|
|Community,
Common Platform
|Medium
|
|
|-
|Microchip Technology
|M4F
|
|BGA
|
|
|Self,
FPGA-MCU Dev Board
|
|
|
|-
|Microchip Technology
|M4F
|
|TQFP
|
|
|Community,
Common Platform
|
|
|
|-
|NXP (TODO)
|
|
|
|
|
|
|
|
|
|-
| colspan="10" |'''FPGA Development / Evaluation Boards'''
|-
|Lattice Semiconductor
|MachXO2
|
|TQFP
|
|Last non-BGA in MachXO series
|Community
|
|
|
|-
|Lattice Semiconductor
|MachXO3D/LF
|
|
|
|
|Self,
FPGA-MCU Dev Board
|HIGH
|
|
|-
|Lattice Semiconductor
|ECP5
|
|
|
|
|Self,
FPGA-MCU Dev Board
|Medium
|
|
|-
| colspan="10" |'''FPGA-MCU Development / Evaluation Boards'''
|-
|FPGA-MCU Dev Board Lite (STMicroelectronics M4F + Lattice Semiconductor MachXO3D)
|M4F + MachXO3D
|
|
|
|
|
|HIGH
|
|
|-
|FPGA-MCU Dev Board Advanced (STMicroelectronics M7 + Lattice Semiconductor ECP5)
|M7 + ECP5
|
|
|
|
|
|Medium
|
|
|-
|FPGA-MCU Dev Board Ultra
|
|
|
|
|
|
|Low
|
|
|-
|
|
|
|
|
|
|
|
|
|
|-
|
|
|
|
|
|
|
|
|
|
|}

EEPROJ MCU, FPGA Evaluation Boards Variants

2022-02-05T03:28:32Z

21stCP Wiki BDFL:

EEPROJ MCU, FPGA Evaluation Boards Variants

2022-02-05T03:28:14Z

21stCP Wiki BDFL:

EEPROJ MCU, FPGA Evaluation Boards Variants

2022-02-05T03:26:08Z

21stCP Wiki BDFL: