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28377 power sequencing

MST
Prodigy 40 points

Please inform the power sequencing requirements for 28377 controller, In reference controller card sch it is given that 3.3 V is enabled prior to the 1.8 V to the core.

please inform the procedure for powering this 28377 CONTROLLER

Thanks,

MST

  • 0
    TI__Guru 57255 points

    MST,

    There is no major power sequencing requirement on F28377. 

    The only requirement is that VDDIO (3.3V) is greater than or equal to VDD (1.2V) during power up.  Note that this is different from some past devices which required VDDIO>VDD+0.3V.  F28377 has power-on-reset circuitry which eliminates the additional 0.3V requirement.

    Hopefully this helps.


    Thank you,
    Brett