A4964 Datasheet Sensorless Sinusoidal Drive BLDC Controller

Manufacturer: Allegro MicroSystems

Overview: A4964 2 - Sensorless Sinusoidal Drive BLDC Controller.

A4964 sensorless sinusoidal drive bldc controller by Allegro MicroSystems - Datasheet Preview

Datasheet Details

Part number	A4964
Manufacturer	Allegro MicroSystems
File Size	3.70 MB
Description	Sensorless Sinusoidal Drive BLDC Controller
Download	A4964 Download (PDF)

General Description

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.

The A4964 provides the supply and watchdog for the microcontroller and the high-voltage interfaces between the microcontroller and the central ECU and ignition switch.

Key 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 range.
SPI-compatible interface.
Programmable control modes: speed, voltage, current.
Peak current limiting.
Control via SPI or PWM.
Programmable gate dri.

More Datasheets from Allegro MicroSystems

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