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TPS65400 ENSW1/ENSEQ PIN

Tsukui Yusuke
Guru 21930 points

Hi,

Could you tell me about ENSW1/ENSEQ.
Please tell me the function of ENSEQ.
A data sheet does not have detailed explanation.



Best Regards,
Yusuke/Japan Disty

  • 0
    TI__Intellectual 2590 points

    Hi  Yusuke-san,

    ENSEQ is the same pin of ENSW1, When single ENABLE is selected, ENSW1 pin acts as a sequence start and sequence stop pin, with all other
    ENSWx pins ignored. This allows the device to emulate classic sequencing behavior. A start sequence begins when ENSW1 is asserted, and a stop sequence begins when ENSW1 is deasserted. If ENSW1 were to de-assert before a start sequence were complete, a stop-sequence would begin immediately.

    thanks!

  • 0 in reply to Eric Guo1
    Guru 21930 points

    Hi Eric-san,

    Thank you for your support.
    Could you tell me the sequence set by default.
    When customer use only ENSW1/ENSEQ, is all SW start up at the same time?
    Also, When I use only ENSEQ, is the OPEN state all right for other EN?



    Best Regards,
    Yusuke/Japan Disty

  • 0 in reply to Tsukui Yusuke
    TI__Intellectual 2590 points
    Hi Yusuke-san,

    You can floating other EN_SW pin, for signle enbale, the default sequence is SW1, SW2,SW3,SW4. you can configure the start up delay to get the seqeuency which you want by using PMbus.
    thanks!
    Eric