TLV62130A: Output is biased when VIN is powered off

Shinya Sawamoto

Part Number: TLV62130A

Hello team,

When the VIN is powered off and the output is still biased(e.g. 4V) from another power source in TLV62130A, what is an issue expected?
I guess that there may be an excessive reverse current issue, is it correct or no problem on that device?

Thanks in advance.
S.Sawamoto

over 4 years ago

0 JohnTucker over 4 years ago

TI__Guru**** 191445 points

Shinya,

The high side body diode can conduct and the input voltage will be one diode drop below it.

0 Shinya Sawamoto over 4 years ago in reply to JohnTucker

TI__Expert 5260 points

Hi John,

Thank you so much for the prompt feedback.
Does the body diode have any conduct capability? Let me confirm it, just in case.

Thanks.

0 JohnTucker over 4 years ago in reply to Shinya Sawamoto

TI__Guru**** 191445 points

Yes it can conduct if it is forward biased.

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TLV62130A: Output is biased when VIN is powered off