Triple Drives Provides Three Individually Controllable Half-H-Bridge Drivers

The Texas InstrumentsDRV8313 triple half-H-bridge driver is now available from Mouser. It provides three individually controllable half-H-bridge drivers and is intended to drive a three-phase brushless DC motor, though it can also be used to drive solenoids or other loads.

Each output driver channel consists of N-channel power MOSFETs configured in a half-H-bridge configuration. The design brings the ground terminals of each driver to pins, to allow one to perform current sensing on each output. Current-limit circuitry or other functions are possible uses of an uncommitted comparator. The DRV8313 can supply up to 2.5A peak or 1.75A RMS output current per channel (with proper PCB heatsinking at 24V and 25C) per half-H-bridge. The device provides internal shutdown functions for over-current protection, short-circuit protection, under-voltage lockout, and over-temperature. The DRV8313 comes in a 28-pin HTSSOP PowerPAD package.

Typical applications include HVAC motors, consumer products, office automation machines and factory automation systems.