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TPS65982 Hreset I/O level

kerr chang
Genius 4075 points
Other Parts Discussed in Thread: TPS65982

Hi Team

             NEW SPEC have show TPS65982 Hreser(D6) Absolute Maximum Ratings is 1.8+0.3V .

             WHY EVM connector to 3.3V ?   

  • 0
    TI__Mastermind 30310 points
    Kerr,

    The EVM is wired incorrectly. Since the datasheet update was completed after the EVM was built and assembled, we cannot change the EVM HW.

    The HRESET Pin can tolerate a Push-Button press that connects it to 3.3V for short periods of time, but it cannot withstand 3.3V for extended periods of time. My EVMs still operate after 100's of button presses, but the degradation of the input will build up over time and eventually cause failures.

    All new designs are recommended to use 1.8V logic for HRESET.
  • 0 in reply to Brian Berner
    Genius 4075 points
    Thank you so much