TPS65131: Reverse Current/Reverse Polarity Protection Recommendations

Abigail Leonardi

Part Number: TPS65131

Tool/software:

Hi,

My customer is looking to see what TI recommends doing to safeguard the TPS65131 from reverse current and reverse polarity from upstream LDOs. The example circuit is below:

https://www.ti.com/lit/ug/tidu996/tidu996.pdf?ts=1733955916249&ref_url=https%253A%252F%252Fwww.google.com%252F (Figure 5.1.2)

Please let me know your recommendation. Thank you.

7 months ago

0 Steven Li 7 months ago

TI__Mastermind 23190 points

Hi Abigail,

Our expert is currently out of office for Chinese New Year Holiday. He will reply to you after Feb.5 when back to office. Thanks for your understanding.

Best Regards,

Steven

0 Abigail Leonardi 7 months ago in reply to Steven Li

TI__Expert 3510 points

Appreciate the update Steven! Looking forward to the update

+1 Patrick Yao 7 months ago in reply to Abigail Leonardi

TI__Mastermind 34780 points

Hi Abigail,

Do you have the specs of the potential reverse current? If its amplitude is small and the lasting time is very short, it may only cause the output voltage to be increased a little but will not cause further impact.

Patrick

0 Abigail Leonardi 7 months ago in reply to Patrick Yao

TI__Expert 3510 points

Hi Patrick, appreciate the response - I just noticed you were already previously involved in the customer thread, I will continue the conversation there

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TPS65131: Reverse Current/Reverse Polarity Protection Recommendations