TPS23754: TPS23754 cold start circuit review

John Lin41

Intellectual 260 points

Part Number: TPS23754

Cannot start in low temperature environment (-40 degrees), please confirm correct?

over 7 years ago

0 Thomas Lewis over 7 years ago

TI__Expert 5615 points

John,

Per page #5 of our datasheet, the TPS23754 has a minimum Operating junction temperature range (TJ) of -40 degree C.

However, I noticed that you attached a schematic to your submission. Are you requesting a review of your schematic?

I apologize but I am not certain on what you are asking/requesting here.

Thanks for the clarification in advance,

0 Thomas Amlee over 7 years ago in reply to Thomas Lewis

TI__Genius 9230 points

Hi John,

Have you attempted startup with these conditions with the TPS23754EVM-420?

Additionally, are you unable to startup from RJ45 input, adapter input, or both?

Regards,
Tom A.

0 Thomas Amlee over 7 years ago in reply to Thomas Amlee

TI__Genius 9230 points

Hi John,

Any updates?

Regards,
Tom A.

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TPS23754: TPS23754 cold start circuit review