Part A4960
Description Sensorless BLDC Controller
Manufacturer Allegro MicroSystems
Size 1.78 MB
Allegro MicroSystems
A4960

Overview

The A4960 is a three-phase, sensorless, brushless DC (BLDC) motor controller for use with external N-channel power MOSFETs. The motor is driven using block commutation (trapezoidal drive) where phase commutation is determined, without the need for independent position sensors, by monitoring the motor back-EMF.

  • 3-phase BLDC sensorless start-up and commutation
  • Gate drive for N-channel MOSFETs
  • Integrated PWM current limit
  • 7 to 50 V supply voltage operating range
  • Compatible with 3.3 V and 5 V logic
  • Cross-conduction protection with adjustable dead time
  • Charge pump for low supply voltage operation
  • Extensive diagnostics output
  • Low current sleep mode