DRV8302 Three-Phase Pre-Driver

By Texas Instruments 114

DRV8302 Three-Phase Pre-Driver

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

Features Applications
  • Operating supply voltage 8 V to 60 V
  • 2.3 A sink and 1.7 A source gate drive current capability
  • Integrated dual shunt current amplifiers with adjustable gain and offset
  • Integrated buck converter to support up to 1.5 A 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
  • Three-phase brushless DC motors
  • Permanent magnet synchronous motors
  • CPAP and pumps
  • E-bikes
  • Hospital beds
  • Wheel chairs
  • Power drills
  • Blenders
  • Choppers