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TPS2412: question

Part Number: TPS2412
Other Parts Discussed in Thread: TPS24741

Hi Expert,

Customer use TPS2412 to ORing 12V PSU1aux(oring diode) and PSU2main(controlled by tps24741+ OR FET).

When only PSU1 is on, PSU2 is off,  is it expected to see PSU2 tps24741 Apin still has 1.607V? Shouldn't it be 0V?

Customer's design need Apin <0.8V cause the Apin voltage net also provide other function and the logic need < 0.8V at least.

Would you please have a look and provide any comments? Thanks.

 Allan