TPS54620: Power good logic level

Yuto Sakai

Mastermind 6100 points

Part Number: TPS54620

Hi,

When EN = Low, is the logic level of the PWRGD pin Hi-Z?
Or is it Low?

Best regards,
Yuto Sakai

over 7 years ago

0 JohnTucker over 7 years ago

TI__Guru**** 191445 points

Sakai-san,

Let me check that for you. I'll get back to you soon.

0 Yuto Sakai over 7 years ago in reply to JohnTucker

Mastermind 6100 points

Hi John-san,

Thank you for your reply.
I am sorry to ask you, but please reply to the previous post as soon as it can be confirmed.

Best regards,
Yuto Sakai

0 JohnTucker over 7 years ago in reply to Yuto Sakai

TI__Guru**** 191445 points

Sakai-san,

I was working on an urgent issue last week (and today also). I will get back to you on this by tomorrow.

0 Anthony F over 7 years ago in reply to JohnTucker

TI__Mastermind 35165 points

Hi Sakai-san,

As long as the VIN voltage is above the minimum VIN for valid output for power good in the electrical characteristics table in the datasheet, PWRGD will pull low when EN goes low. This spec is near the bottom on page 7 in the current revision of the datasheet. It is 0.6 V typical and 1 V max.

Best Regards,
Anthony

Power management

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TPS54620: Power good logic level