A5947-B Datasheet - Allegro

A5947-B - Three-Phase Sensorless Fan Driver

The A5947-B three phase motor driver IC incorporates sensorless sinusoidal drive to minimize vibration for a wide variety of fan applications.

Sensorless control eliminates the requirement for Hall sensors.

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

EEPROM is used to tail

A5947-B 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

* 3.3 V / 20 mA linear regulat

Datasheet Details

A5947-B

Allegro

1.18 MB

Three-phase sensorless fan driver.

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