A5947-B Datasheet - Allegro

A5947-B, Three-Phase Sensorless Fan Driver

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

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Datasheet Details

Part number:

A5947-B

Manufacturer:

Allegro

File Size:

1.18 MB

Description:

Three-Phase Sensorless Fan Driver

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

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 tailor the common functions of the fan speed curve to a specific application. This eliminates the requirement for a microprocessor-based system an

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A5947-B Three-Phase Sensorless Fan Driver Allegro

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