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A5944 Datasheet - Allegro

A5944 - Three-Phase Sensorless Fan Driver

The A5944 three-phase motor drivers incorporate sinusoidal drive to minimize audible noise and vibration for medium power fans.

A sinusoidal voltage profile is applied to the windings of the motor at startup to quietly start and gradually ramp up the motor to desired speed.

The voltage profile is se

A5944 Features

* Sinusoidal drive for low audible noise

* Quiet startup adjustment feature

* High efficiency control algorithm

* Sensorless operation

* PWM speed input

* FG speed output

* Lock detection

* Short-circuit protection

* Standby mod

A5944-Allegro.pdf

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Datasheet Details

Part number:

A5944

Manufacturer:

Allegro

File Size:

641.61 KB

Description:

Three-phase sensorless fan driver.

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