A4964
Overview
The A4964 is a three-phase, sensorless, brushless DC (BLDC) motor controller for use with external N-channel power MOSFETs and is specifically designed for automotive applications. It is designed to provide the motor control functions in a system where a small microcontroller provides the communication interface to a central ECU and intelligent fault and status handling.
- Three-phase sensorless BLDC motor control FET driver
- Three-phase sinusoidal drive with soft start
- Sensorless start-up and commutation
- Windmill detection and synchronization
- Bootstrap gate drive for N-channel MOSFET bridge
- 5.5 to 50 V supply range
- SPI-compatible interface
- Programmable control modes: speed, voltage, current
- Peak current limiting
- Control via SPI or PWM
