3 Description

The DRV3233 is an integrated smart gate driver 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 up 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 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 measurement.

A wide range of diagnostics and protection features integrated in the DRV3233 enable a robust motor drive system design and help eliminate the needs of external components. The highly configurable device response allows the device to be integrated seamlessly into a variety of system designs.

Package Information

PART NUMBER	PACKAGE⁽¹⁾	PACKAGE SIZE (NOM) ⁽²⁾	BODY SIZE (NOM)
DRV3233-Q1	HTQFP (48)	9 mm x 9 mm	7 mm × 7 mm
	QFN (48)⁽³⁾	7 mm × 7 mm	7 mm × 7 mm
	QFN (32)⁽³⁾	6 mm × 4 mm	6 mm × 4 mm

(1) For all available packages, see the orderable addendum at the end of the data sheet.

(2) The package size includes pins, where applicable.

(3) Product preview only. Contact TI for more information.

Simplified Schematic