The DRV8302 is a gate driver IC for three phase motor drive applications. It provides
three half bridge drivers, each capable of driving two N-channel MOSFETs. The device supports up to
1.7-A source and 2.3-A peak current capability. The DRV8302 can operate off of a single power
supply with a wide range from 8-V to 60-V. It uses a bootstrap gate driver architecture with
trickle charge circuitry to support 100% duty cycle. The DRV8302 uses automatic hand shaking when
the high side or low side MOSFET is switching to prevent current shoot through. Integrated VDS
sensing of the high and low side MOSFETs is used to protect the external power stage against
overcurrent conditions.
The DRV8303 includes two current shunt amplifiers for accurate current measurement. The
amplifiers support bi-directional current sensing and provide and adjustable output offset up to 3
V.
The DRV8302 also includes an integrated switching mode buck converter with adjustable
output and switching frequency. The buck converter can provide up to 1.5 A to support MCU or
additional system power needs.
A hardware interface allows for configuring various device parameters including dead
time, overcurrent, PWM mode, and amplifier settings. Error conditions are reported through the
nFAULT and nOCTW pins.
For all available packages, see the orderable addendum at the
end of the data sheet.
