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TPS546E25: Does the TPS546E25 need firmware programing for IC configuration setup before boot up?

Lewis Chang
Prodigy 120 points
Part Number: TPS546E25

Tool/software:

Hi TI Experts,

From the TPS546E25 datasheet, it looks all of the configurations can be set by the IC's pinstrap via the external resistors, which means there is no need to do any firmware programing to config the IC for boot up, not sure if my understanding is correct?

Thank you.

  • +1
    TI__Mastermind 23965 points

    Hello Lewis,

    Yes, the device is functional without activating PMBus.   

    The MSEL1, MSEL2, VSEL and ADDR pins are used for the device settings. 

    MSEL1 sets OCL, soft start time and fault response, internal/external feedback divider

    MSEL2 set switching frequency, compensation gain and ramp 

    VSEL sets output voltage when using internal divider or functions as a feedback pin for external divider

    ADDR sets mode and address, stack position when configured for multiphase. 

    Regards,

    David

  • 0 in reply to David_Daniels
    Prodigy 120 points

    Got it, thank you David.