A4964 Datasheet - Allegro

A4964 Sensorless Sinusoidal Drive BLDC Controller

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 communicat.

A4964 Features

* 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

A4964-Allegro.pdf