DRV3233-Q1 Three-Phase Gate Driver

The Texas Instruments DRV3233 integrated smart gate driver is ideal for 12 V and 24 V automotive three-phase BLDC applications. The device provides three half-bridge gate drivers, each capable of driving high-side and low-side N-channel power MOSFETs. The DRV3233 generates the correct gate drive voltages using an integrated bootstrap diode and a GVDD charge pump. The smart gate drive architecture supports configurable peak gate drive current from 0.8 mA to 1 A source and 2 A sink. The DRV3233 can operate from a single power supply with a wide input range of 4.5 V to 60 V. A trickle charge pump enables 100% PWM duty cycle control and provides overdrive supply voltage for external switches.

The DRV3233 provides low-side current sense amplifiers to support resistor-based low-side current sensing. The low offset of the amplifiers enables the system to obtain precise motor current measurements. A wide range of diagnostics and protection features integrated in the DRV3233 enable a robust motor drive system design and help eliminate the need for external components. The highly configurable device response allows the device to be integrated seamlessly into a variety of system designs.