A4942

Three-Phase Sensorless Fan Driver

Allegro

Image	Manufacturer	B2B MPN	Description	Distributor	Stock	Quantity	Price	Buy Now
	Allegro MicroSystems LLC	A4942GESTR-T	IC MOTOR DRIVER 20QFN	DigiKey	8676	500 units	$1.52	🛒 Buy Now

A4942 Datasheet (0.96 MB)

A4942 Datasheet Preview — Preview of A4942 PDF Datasheet

Datasheet Details

Part number:

A4942

Manufacturer:

Allegro

File Size:

0.96 MB

Description:

Three-phase sensorless fan driver

A4942 Features

* Sensorless (no Hall sensors required)

* Closed loop speed control

* Minimal external components

* PWM speed input

* FG speed output

* Lock detection

* Soft start

* Overcurrent protection

* Soft switching for reduced audible no

A4942 General Description

TheA4942 three phase motor driver incorporates BEMF sensing to eliminate the requirement for Hall sensors in fan applications. A closed loop speed control system is integrated into the IC. This allows accurate setting of maximum and minimum speeds via selection of external resistors. The speed is co.

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A4942 Three-Phase Sensorless Fan Driver Allegro

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