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ATL432LI: ATL432LI in fan control application issue

Part Number: ATL432LI
Other Parts Discussed in Thread: TL431, ATL431LI

Hi,

My customer used ATL432LI in the fan control of the PC power, you can see the schematic as below;

U701 is an ATL432LI. The user finds that the fan continues to rotate slowly under light load. Normally, it should be stopped.

Is the Ika let the fan rotate? Could you help to check the schematic value? Thank you very much.