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A89331 Datasheet - Allegro

A89331 - Three-Phase Sensorless Fan Driver

The A89331 three-phase motor driver incorporates sensorless sinusoidal drive to minimize vibration for high-speed server fans.

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

A flexible closed-loop speed control system is integrated into the IC.

EEPROM is

A89331 Features

* Closed-loop speed control

* Overvoltage protection

* Power loss brake

* Fault mode brake

* Configurable RD or FG output

* Speed curve configuration via EEPROM

* I2C serial port

* Sinusoidal modulation for reduced audible noise and low

A89331-Allegro.pdf

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Datasheet Details

Part number:

A89331

Manufacturer:

Allegro

File Size:

1.41 MB

Description:

Three-phase sensorless fan driver.

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