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Part Number: TPS542941
Our customer measured VIN1 and VIN2 shutdown current at VIN1=VIN2=12V, EN1=EN2=LOW.
Then, VIN1 current is around 110uA and VIN2 current is around 0uA.
So, VIN current is inclined to VIN1 pin.
Is this correct behavior?
If yes, could you please let us know this cause?
Please refer dagtasheet page 6, as below:
VREG5 (internal circuit power supply) is from VIN1.
Dataheet page 3, EC table, VIN shutdown current, max 150uA, so your test result is reasonable.
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In reply to Jason Wang (BSR-MV):
Thank you for your prompt reply.
I understand. Thank you very much.
In reply to Hide:
I have one more question.
Our customer separate VIN1 (So VIN1=Open and VIN2=12V) at shutdown.
Because, they would like to reduce shutdown current.
Do you have any problems with this usage?
I send e-mail to Sam Zhang-san.
I’d greatly appreciate your verification.
I received automatic replay from Zhang-san.
Could you plaease let us know your address?
I've checked your application on EVM. There is no issue.
When VIN1=0, VIN2=7.2V, EN1=EN2=0, there is no voltage on either output, nor the other VIN.
In reply to Sam(MPAA) Zhang:
Thank you for the information.
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