TPS25221: use fault pin as power good

Jeff YANG

Part Number: TPS25221

Hi,

My customer wants find current limit IC with power good function.

Can I used TPS25221 fault pin but connect to output pin as below?

Seems it is the same with PGOOD function?

0 Bing Hwang over 3 years ago

Hi Jeff,

I don't see the downside of this kind of use case, and it indeed looks like a PGOOD function.

I'd like to know why the customer wants to use this kind of design? Is PGOOD-seem-like function will be a better solution for them?

Thanks.

Bing

0 Jeff YANG over 3 years ago in reply to Bing Hwang

Hi Bing,

But I can't find 5V/2A current limit switch with PGOOD function, or you have other better suggestion?

Thanks!

Jeff

0 Bing Hwang over 3 years ago in reply to Jeff YANG

Hi Jeff,

I need to check if we have USB power switch which can support PGOOD function.

Thanks.

Bing

0 Jeff YANG over 3 years ago in reply to Bing Hwang

Hi Bing,

Sure, please let me know if you have any suggestion for 2A USB switch with PGOOD function.

Thanks!

Jeff

0 Bing Hwang over 3 years ago in reply to Jeff YANG

Hi Jeff,

We don't have switch supporting PGOOD feature.

Thanks.

Bing

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