Triple gate driver IC for three-phase motor drive applications

This post is sponsored by Texas Instruments. The Texas Instruments (TI) DRV8305 is a gate driver IC for three-phase motor drive applications. It provides three high-accuracy trimmed and temperature compensated half bridge drivers, each capable of driving a high-side and low-side N-type MOSFET. A charge pump driver supports 100% duty cycle and low voltage operation. The gate driver can also handle load dumps up to 45V. The device uses automatic handshaking when switching to prevent current shoot through. Accurate VDS of both the high-side and low-side MOSFETs conditions are sensed to protect external MOSFETs during over current. The DRV8305 includes three current shunt amplifiers for accurate current measurements that support bi-directional current sensing with adjustable gain. It also has an integrated voltage regulator and controller to support a MCU or additional system power needs. The SPI provides detailed fault reporting and flexible parameter settings such as gain options for the current shunt amplifier, slew rate control of the gate drivers, and various protection features.