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A5940 Datasheet - Allegro

A5940 - Three Phase Sensorless Sinusoidal Fan Driver

The A5940 three phase motor driver incorporates 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 startup and gradually ramp up the motor to desired speed.

The voltage profile is

A5940 Features

* AEC-Q100 qualified (K version)

* Sinusoidal drive for low audible noise

* Minimum speed function

* Quiet startup adjustment feature

* High efficiency control algorithm

* Sensorless operation

* PWM speed input

* FG speed output

A5940-Allegro.pdf

Preview of A5940 PDF
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Datasheet Details

Part number:

A5940

Manufacturer:

Allegro

File Size:

0.98 MB

Description:

Three phase sensorless sinusoidal fan driver.

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