Allegro A4964KJPTR-T

控制器 - 换向，方向管理5.5V ~ 50V

Overview

Allegro MicroSystems 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.

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 drive for slew rate control

LIN / PWM physical interface with wake

Logic supply regulator with current limit

MCU watchdog and reset

Ignition switch interface

Diagnostics, status, current, and speed feedback

Applications

Automotive fuel, oil, and urea pumps

Automotive fans and blowers