TPS54160: Response Time of PWRGD Pin

Sadanori Kato

Part Number: TPS54160

Hi,

According to TPS51460 data sheet, the PWRGD pin is pulled low when the VSENSE is lower than 92% or greater than 109% of the nominal internal reference voltage.
So, could you please tell me the response time when the PWRGD pin is asserted and de-asserted?
I am considering connecting this PWRGD pin to the enable pin on another dc/dc converter. So, please let us know if you have any concerns.

Best regards,
Kato

over 5 years ago

0 Andy Chen over 5 years ago

TI__Mastermind 34875 points

Hi Kato,

will check it internally and update you later.

B R

Andy

0 Sadanori Kato over 5 years ago in reply to Andy Chen

Guru 36540 points

Hi Andy-san,

Thank you for your prompt reply.

I am looking forward to getting the information from you.

Best regards,
Kato

0 Sadanori Kato over 5 years ago in reply to Sadanori Kato

Guru 36540 points

Hi Andy-san,

Sorry for rushing you but please let me know if you have any updates.

Best regards,
Kato

0 Andy Chen over 5 years ago in reply to Sadanori Kato

TI__Mastermind 34875 points

Hi Kato,

there is about 0.2us low pass RC filter delay on Vsense signal to Power Good comparator input, the PWRGD output is triggered by Vsense directly without other delay time or minimum output pulse width.

B R

Andy

0 Sadanori Kato over 5 years ago in reply to Andy Chen

Guru 36540 points

Hi Andy-san,

Thank you for the information.

I understand.

Best regards,
Kato

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TPS54160: Response Time of PWRGD Pin