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Power up/down sequence of DRA74X

Mickey Hu
Intellectual 400 points

Hi 

There are power up/down sequence on datasheet but these data not include specified time interval.

Do any documents specified the time requirement for power up/down sequence?

  • 0
    TI__Mastermind 24990 points

    Hi Mickey,

    Power-on sequence starts with vdda_rtc and other voltages as seen on Figure 5-1. Power-Up Sequencing.

    Right after these voltages are ramp up and stable, the second portion of voltages can start to ramp-up. Then the third portion and so on.

    This is not timing critical. Next voltages can delayed but this will only induce unneeded delay in the sequence.

    All critical sections are described in the foot notes right below Figure 5-1. Power-Up Sequencing.


    Hope this helps.

    Regards,

    Stan