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TPS65983B: Asking for the TPS65983B power up sequence

SHH
Mastermind 32196 points
Part Number: TPS65983B

Hi Team,
Do TPS65983B has the specific power sequence?
Sometimes, my cusotmer's application PD control cannot has the CC toggle waveform. CC pins keeep at low. So we guess maybe the power up sequence may not correctly reack the FW form the flash.


BR,
SHH

  • 0
    TI__Expert 6430 points

    Hi SHH,

    There's no specific power sequence as such. But you need to ensure that the TPS65983B is not getting back-powered from some I2C rail which is in some other power domain.

    Ensure that the chip is always powered only by the power pins and not from any other pins.

    Thanks,

    Rahul