3-Phase Brushless Motor Pre-Driver


3-Phase Brushless Motor Pre-Driver

3 Phase Brushless Motor Pre Driver

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-type MOSFETs, one for the high-side and one for the low side. It supports up to 2.3A sink and 1.7A source peak current capability and only needs a single power supply with a wide range from 8 to 60V. The DRV8302 uses bootstrap gate drivers with trickle charge circuitry to support 100% duty cycle. The gate driver uses automatic hand shaking when high side FET or low side FET is switching to prevent current shoot through. Vds of FETs is sensed to protect external power stage during overcurrent conditions.

The DRV8302 includes two current shunt amplifiers for accurate current measurement.

Device Uses
  • 3-Phase Brushless DC Motor and
  • Permanent Magnet Synchronous Motor
  • CPAP and Pump
  • E-bike, Hospital Bed, Wheel Chair
  • Power Drill, Blender, Chopper
Features
  • Operating Supply Voltage 8V–60V
  • 2.3A Sink and 1.7A Source Gate Drive Current Capability
  • Integrated Dual Shunt Current Amplifiers With Adjustable Gain and Offset
  • Integrated Buck Converter to Support up to 1.5A External Load
  • Independent Control of 3 or 6 PWM Inputs
  • Bootstrap Gate Driver With 100% Duty Cycle Support
  • Programmable Dead Time to Protect External FETs from Shoot Through
  • Programmable Overcurrent Protection of External MOSFETs
  • Thermally Enhanced 56-Pin TSSOP Pad Down DCA Package

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