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Original question:

TPS3851-Q1: confirmation about the reset timeout period (tRST) in WDO pin

TPS3851-Q1: TPS3851-Q1

johnny fu
Prodigy 20 points
Part Number: TPS3851-Q1
Other Parts Discussed in Thread: TPS3851

Tool/software:

Hi

I have a futther question about TPS3851 as discussed below:

https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1378892/tps3851-q1-confirmation-about-the-reset-timeout-period-trst-in-wdo-pin/5268322#5268322

could you provide the more detailed time about the 'immediately' shown in the discussion.

thank you

  • 0
    TI__Genius 11650 points

    Hi Johnny,

    The "immediately" when the device is disabled is the propagation time from the device being disabled to the WDO going to high (unactive) state. This time is not classified in the device datasheet but judging from Sila's lab capture is less than 1ms. 

    Thanks,
    Joshua