• State Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 1 answer
  • Subscribers 62 subscribers
  • Views 106 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS548D22: Delay for PGOOD going in Consult

Stanley Dai
Expert 5810 points
Part Number: TPS548D22

Hi Team,

Customer is consulting the min and max value of Delay for PGOOD going in. We only provide the TYP value in D/S. Pls help us here. Thanks

Best,

Stanley.

  • 0
    TI__Expert 5310 points

    Hi Stanley,

    I believe you may have a datasheet that is slightly out of date. Here is the table from the current version:

    The reason why there is no maximum or minimum specification is that the power on delay for power good is well controlled internally and does not deviate much from 1.024ms. When the output achieves regulations, there is an internal delay of 1.024ms at which point the power good MOSFET turns off and the PGOOD voltage may be pulled high.

    Regards,

    Alec Biesterfeld

  • 0 in reply to Alec Biesterfeld
    TI__Expert 5810 points

    Hi Alec,

    Thanks for helps. So what's the typical deviation range you estimate for this power good delay, ±5%? Customer needs this info to do worst case evaluation.

    Best,

    Stanley

  • +1 in reply to Stanley Dai
    TI__Expert 5310 points

    Hi Stanley,

    Given that this is a typical spec and production tested, I would say that +/-5% is a typical range. I will see if I have any data available, but if the customer can tolerate +/-5%, I believe that should be more than sufficient.

    Regards,

    Alec Biesterfeld