A89332-1 Datasheet PDF - Allegro Three-Phase Sensorless Fan Controller Specs

A89332-1 - Three-Phase Sensorless Fan Controller

Datasheet Summary

Description

The A89332-1 three-phase motor controller incorporates a sensorless sinusoidal drive to minimize vibration for highpower, high-speed server fans.

Sensorless control eliminates the requirement for Hall sensors for server fan applications.

Features

Closed-loop speed control.
Fault mode brake.
AC Loss IBB control.
Configurable rotor detect (RD) or frequency generator (FG) output.
Speed curve configuration via EEPROM.
I2C serial port.
Sinusoidal modulation for reduced audible noise and low vibration.
Sensorless (no Hall sensors required).
Trapezoidal drive option for high speed.
Adjustable gate drive option.
Minimal external components.

Datasheet Details

Part number	A89332-1
Manufacturer	Allegro
File Size	1.12 MB
Description	Three-Phase Sensorless Fan Controller
Datasheet	A89332-1 Datasheet
Additional preview pages of the A89332-1 datasheet.

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Full PDF Text Transcription

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A89332-1 Three-Phase Sensorless Fan Controller FEATURES AND BENEFITS • Closed-loop speed control • Fault mode brake • AC Loss IBB control • Configurable rotor detect (RD) or frequency generator (FG) output • Speed curve configuration via EEPROM • I2C serial port • Sinusoidal modulation for reduced audible noise and low vibration • Sensorless (no Hall sensors required) • Trapezoidal drive option for high speed • Adjustable gate drive option • Minimal external components • PWM duty cycle speed input • FG speed output • Lock detection • Soft start • Overvoltage protection • Shorted output protection (OCP) APPLICATIONS • High-speed 12 V server cooling fans • Industrial and consumer blowers and fans DESCRIPTION The A89332-1 three-phase motor controller incorporates a sensorless sinusoidal dr

Published: Dec 10, 2023 |