Quad half-bridge drivers offer an easy interface with the controller

Texas Instruments DRV8935 Quad Half-Bridge Drivers, available now from Mouser, are created for driving up to four solenoid loads, two DC motors, one stepper motor, or additional loads. The output stage for each channel is comprised of N-channel power MOSFETs configured in a half-bridge. Easy interface with the controller is allowed by a simple PWM interface.

The drivers work off a single power supply and support a wide input supply range from 4.5V to 33V. The device supplies up to 2.5A peak or 1.75A RMS output current per channel (dependent on PCB design). A low-power sleep mode can achieve a low quiescent current draw by shutting down much of the internal circuitry.

Protection functions on the device include undervoltage-lockout, overcurrent protection on each FET, short circuit protection, and overtemperature. Fault conditions are designated by the nFAULT pin.

Typical applications include refrigerator damper and ice makers, textile machines, office and home automation, factory automation and robotics, washers, dryers, and dishwashers, gaming machines, and general-purpose solenoid loads.