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TPS3808-Q1: tpHL Definition

Evan Wang
Genius 10500 points
Part Number: TPS3808-Q1


Hi TI Expert,

Could you help to clarify the definition of the tpHL in the TPS3808-Q1 datasheet?

Not sure which interval it represent based on below diagram.

And we also want to know the max tpHL value, the one in the DS is typ value.

Thank you.

  • 0
    TI__Genius 10570 points

    Hi Evan, 

    Propagation delay is defined as SENSE to RESET , and MR to RESET in the datasheet. It is the time required for the output to assert when MR pin goes low or the voltage at the sense pin goes below threshold. 

    I think you're understanding is correct, but please find my clarification below.

    Datasheet does not provides the max and min value, but the typical values as 150 ns and 20 us for MR to RESET and Sense to RESET.

     

    Best Regards,

    Sila Atalar 

  • 0 in reply to Sila Atalar
    TI__Genius 10500 points

    Hi Sila,

    Appreciate your clarification.

    But we still need the "maximum" value of  MR to RESET and Sense to RESET.

    End customer need to control the timing precisely and consider the timing worst case in their design.

    So Could you help to check with your team and provide such information?

    Thank you.

  • +1 in reply to Evan Wang
    TI__Genius 10570 points

    Hi Evan, 

    I see your customer need this information and let me check with my team, and I get back to you via email. 

    Best Regards,

    Sila Atalar