pin assignment

AM309 AM309


1) Built-in hall-effect sensor.
2) Operation voltage 2.0 to 6.5V.
3) RPM Curve adjust
4) Lock detection/Automatic restart circuit.
5) Rotating speed pulse signal (FG) output.
6) Built-in turbo start up (overcome friction).
7) Soft switched drive for silent application.
8) Thermal shutdown protection (TSD).
9) Auto gain control function (AGC).
10) Built-in Hall Signal Offset Cancellation Technical


The AM309 is a single phase full-wave fan motor driver IC with built-in hall sensor. Rotation speed curve could be adjusted by DC-PWM intput. The device contains rotating speed pulse detection output (FG), output soft switching, lock protection and thermal shutdown protection. Maximum output current is 1A. The device is available in TSOT26-FL package.  

Single Phase DC Motor. 

Data Sheet

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