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TPS3431: the maximum clock frequency of WDI pin

Noriyuki Takahashi
Genius 9990 points
Part Number: TPS3431
Other Parts Discussed in Thread: TPS35-Q1, TPS3435, TPS3851,

Hi team,

Could you confirm whether the WDI pin can support 16MHz?

Are there any devices whose WDI pin can support 16MHz? Do you think devices below can support it?

TPS35-Q1

TPS3435

TPS3851

Regards,

Noriyuki Takahashi

  • Former Member
    +1 Former Member

    Hi Noriyuki,

    Thank you for your question!

    A 16MHz signal is quite fast and our devices generally have windows in the ms range as opposed to the ns range. The TPS3431 has a minimum WDI pulse duration of 50ns, but the minimum watchdog timeout is too long.

    Can you provide some more information about the particular application and end equipment that you are working with for us to best assist you?

    Best Regards,

    Andrew Li