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TPS25940-Q1: Multiplexing Power Supplies - eFuse Reverse Current issue

Part Number: TPS25940-Q1
Other Parts Discussed in Thread: TPS25947

Hello all,

I'm using two TPS25940-Q1 in the below matter to switch between two power supplies.

It seems that when both input are present at the same time, then one of them is disconnected, its corresponding e-Fuse stays latched and the output voltage from the second supply is then transferred to the input.

Similar results of this simulation were observed during testing.

Note : IN#1)= 12V < V(IN#2) + 66mV = 12.15V

- Is there a way around this issue by implementing minimum change to the above circuit ?

Thanks in advance for the support.

Yassine