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Original question:

TCAN1043A-Q1: MAX value of tPWRUP

TCAN1043G-Q1: MAX value of tPWRUP

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Prodigy 50 points
Part Number: TCAN1043G-Q1

Hi,

What is the MAX value of tPWRUP?
The datasheet only defines TYP value.
The MAX value is required to determine the waiting time until the start of communication.

  • +1
    TI__Genius 15345 points

    Hello,

    A maximum value was never characterized for this timing. Normally the INH pin controls your voltage regulator that powers your MCU. So once the voltage regulator powers on your MCU will turn on and you can start communicating with the device. 

    You are more than welcome to test the variance in the start times with the INH pin but TI can not guarantee any values outside of the datasheet.

    Best,

    Chris

  • 0 in reply to Chris Ayoub
    Prodigy 50 points

    Hello Chris,

    In our usage, the MCU may be powered before the INH pin goes High in our usage. So we need to know the maximum value.
    But if you can't define it, I give up.

    Thank you.