DRV8704 Datasheet, PDF (10/38 Pages) Texas Instruments – Dual H-Bridge PWM Gate Driver

DRV8704
SLVSD29 – OCTOBER 2015
7 Detailed Description
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7.1 Overview
The DRV8704 is a dual-brushed motor controller that uses external N-channel MOSFETs to drive two brushed
DC motors.
Motor current can be accurately controlled using adaptive blanking time and various current decay modes,
including an auto-mixed decay mode.
A simple PWM interface allows easy interfacing to controller circuits. A SPI serial interface is used to program
the device operation. Output current (torque), gate drive settings, and decay mode are all programmable through
a SPI serial interface.
Internal shutdown functions are provided for overcurrent protection, short-circuit protection, UVLO, and
overtemperature. Fault conditions are indicated by a FAULTn pin, and each fault condition is reported by a
dedicated bit through SPI.
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