A89304 - Sensorless BLDC Fan Driver

Allegro MicroSystems

Datasheet Details

Part number	A89304
Manufacturer	Allegro MicroSystems
File Size	1.00 MB
Description	Sensorless BLDC Fan Driver
Datasheet	A89304 Datasheet

General Description

The A89304 is a single-chip solution to address a wide range of cooling fan systems, including ADAS GPU/CPU cooling, infotainment, and HUD, as well as auxiliary cooling fans and pumps.

It has a fully integrated sensorless sinusoidal algorithm with integrated closed-loop speed control;

no software programming is required.

Overview

A89304 Sensorless BLDC Fan Driver IC for High Temperature Applications.

Key Features

AEC-Q100 qualified.
Speed curve configuration via EEPROM.
I2C serial port.
Sinusoidal modulation for reduced audible noise and low vibration.
Sensorless (no Hall sensors required).
Low RDS(ON) power MOSFETs.
PWM or analog speed input.
FG speed output.
Slew rate control.
Lock detection.
Soft start.
Low power standby mode.
Overcurrent protection.
Overvoltage protection PA.

More Datasheets from Allegro MicroSystems

Part Number	Description
A89301	50V Ultra Low Noise FOC Motor Controller
A89303	Three-Phase Sensorless Pump Driver
A89306	50V Ultra-Low Noise FOC Motor Controller
A89307	Automotive FOC BLDC Motor Controller
A89331	Three-Phase Sensorless Fan Driver
A89332	Three-Phase Sensorless Fan Controller
A89332-1	Three-Phase Sensorless Fan Controller
A89332-3	Three-Phase Sensorless Fan Controller
A89103	Automotive Three-Phase and Battery Isolator MOSFET Driver
A89500	100V Half-Bridge MOSFET Driver