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LP5866: Device functinal modes (sequence time)

?? ??
Prodigy 20 points
Part Number: LP5866

Tool/software:

Q1:How long after power-on should EN=H be set?


Q2:What is the time between sending software reset RESET=FF and STANDBY?

Q3:Is there a power off sequence?

  • 0
    TI__Genius 17365 points

    Hi,

    Please refer the comments below:

    1. It's about 550us after power on EH pin.

    2. It's about 250us after sending reset command and enter into STANDBY.

    3. Actually, we don't have any power off sequence. Do you have any concern on it?

    BR ,Jared

  • 0 in reply to Jared Zhou
    Prodigy 20 points

    Hi.

    Thank you for information.

    I'm Sorry.  Our explanation was inadequate.

    about Q1 and Q2

    Q3

    Q3-1 .Is it safe to PowerOFF with EN=H?

    Q3-2.Is it safe to turn Power OFF with Chip.EN=1?

    Best regart

    M.Shimada

  • +1 in reply to ?? ??
    TI__Genius 17365 points

    Hi Shimada,

    In fact, we did not divide it very carefully, because it was a short time.

    Actually, when the EN pin pull high, it means the device enter standby mode from shutdown mode, the time is about 550us.

    Then, when write the chip_en bit to 1, it means the device enter normal mode from standby mode, the time is about 250us.

    For the power off, I think both methods can work and I think there is no problem.

    BR, Jared

  • 0 in reply to Jared Zhou
    Prodigy 20 points

    Dear Jared Zhou san

    Thank you for answering my question.

    Best Regards,

    M.Shimada