DRV8704 Dual-Brushed DC Gate Driver

Texas Instruments' DRV8704 is a dual-brushed motor controller for industrial equipment applications. The device controls external N-channel MOSFETs configured as two H-bridges. Motor current can be accurately controlled using adaptive blanking time and various current decay modes; including an automatic mixed decay mode.

A simple PWM interface allows easy interfacing to controller circuits. An SPI serial interface is used to program the device operation. Output current (torque), gate drive settings, and decay mode are all programmable through an SPI serial interface.

Internal shutdown functions are provided for over-current protection, short-circuit protection, gate driver faults, under-voltage lockout (UVLO), and over-temperature protection. Fault conditions are indicated by an nFAULT pin, and each fault condition is reported by a dedicated bit through SPI.

The DRV8704 is packaged in a PowerPAD, 38-pin, HTSSOP package with thermal pad (Eco-friendly: RoHS and no Sb/Br).