EEDEHD Medium-Power 4+ Inductive Loads Driver IC
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
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After L298 is disqualified for being too expensive and outdated, NO ICs remain!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...