• State Resolved
  • Locked Locked
  • Replies 4 replies
  • Subscribers 63 subscribers
  • Views 935 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

[TPS659037] OFF Request

Kaka
Guru 24520 points

Hi TI Experts,

Please let me confirm the following question.

[Question]

When the POWERHOLD pin is pull-up, can customer generate the "OFF Request" by pushing the PWRON pin?

Best regards.

Kaka

  • 0
    TI__Genius 16030 points
    Hello Kaka,

    PWRON can generate an OFF request if it is held low (Long Key Press) even if POWERHOLD is high. But as soon as PWRON is released high, because POWERHOLD is high it will generate another ON request.

    Regards,
    Karl
  • 0 in reply to Karl Wallinger
    Guru 24520 points
    Hi Karl,

    Thank you for your response.
    Please let me confirm my understanding just in case.
    1. PWRON signal can generate the OFF request even thought POWERHOLD is High.
    2. PMIC will reboot after off request generating if powerhold pin is High.

    Is my understanding correct?
    Best regards.
    Kaka
  • 0 in reply to Kaka
    TI__Genius 16030 points
    Hi Kaka,

    1. PWRON signal can generate the OFF request even thought POWERHOLD is High.
    [Karl] Correct, but only if PWRON is held low for longer than the time configured in LONG_PRESS_KEY.LPK_TIME register (default 12 seconds). A short pulse of PWRON will not shut of the PMIC off.

    2. PMIC will reboot after off request generating if powerhold pin is High.
    [Karl] Correct. The PMIC will remain off as long as PWRON is held low. Once released high, POWERHOLD high will enable the PMIC again.

    Regards,
    Karl
  • 0 in reply to Karl Wallinger
    Guru 24520 points
    Hi Karl,

    Thank you for your response.
    I got it. If we get more questions from my customer, please let me confirm them.

    Best regards.
    Kaka