Part number:
A4941
Manufacturer:
Allegro Micro Systems
File Size:
665.21 KB
Description:
Three-phase sensorless fan driver.
The A4941 three-phase motor driver incorporates BEMF sensing to eliminate the requirement for Hall sensors in fan applications.
A pulse wave modulated (PWM) input is provided to control motor speed, allowing system cost savings by eliminating external variable power supply.
PWM input can also be use
A4941 Features
* Sensorless (no Hall sensors required)
* Soft switching for reduced audible noise
* Minimal external components
* PWM speed input
* FG speed output
* Low power standby mode
* Lock detection
* Optional overcurrent protection
* V
Datasheet Details
A4941
Allegro Micro Systems
665.21 KB
Three-phase sensorless fan driver.
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