TPS54326: Upper limit of SS time

Takashi Onawa

Part Number: TPS54326

Hi Team,

My customer want to set longer SS time than 10ms for wake up sequencing. Could you tell me the upper limit of SS time for TPS54326?

Regards,

Takashi Onawa

over 4 years ago

0 JohnTucker over 4 years ago

TI__Guru**** 191445 points

Onawa-san,

There is no particular maximum limit for SS time. How long of a time are they needing? I think 10 to 50 msec is acceptable.

0 Takashi Onawa over 4 years ago in reply to JohnTucker

TI__Genius 13200 points

Hi John-san,

Thanks for your prompt response on this.

OK, I understood it doesn't have a limitation. Let me confirm it to the customer.

One quick confirmation.

During the SS, following circuit might get started and 1~3A might be pulled.

Can TPS54326 wake up normally in such a condition with long SS time?

Regards,

Takashi Onawa

0 JohnTucker over 4 years ago in reply to Takashi Onawa

TI__Guru**** 191445 points

Mostly load circuits will not become active at all until the output voltage is above about 0.7 V. TPS54326 can provide current up to the current limit during SS time.

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TPS54326: Upper limit of SS time