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TPS3818G25: TPS3818 equation of /RESET delay time

tateo yamashiro
Guru 10890 points
Part Number: TPS3818G25

Hi,

We got a question from customer about TPS3818.
Could you help us?

[Question]
- They want to estimate /RESET delay time by below equation.

   /RESET delay time = Ct * Vct / Ict + 500us

  They think 500us is internal delay time. So they want to know the variation of 500us.
  They don't need the gurantee. They want to estimate the variation of /RESET delay time.

Best Regards,
tateo

  • 0
    TI__Guru 55940 points

    Hi Tateo,

    The 500us does come from internal delays as you mention.  The variance of the 500us is negligible across temperature. Please note that Figure 4 shows that the timeout period is consistent across temperature.

    Very Respectfully,

    Ryan