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TPS628501-Q1: Switching node Rise and fall time

Sathish Raja
Prodigy 210 points
Part Number: TPS628501-Q1

Hi Team,

Needed Switching node Rise/fall time values

Vin=3.3V Vout=1.2V Fsw=1.8MHz

Thanks 

Sathish

  • 0
    TI__Genius 15170 points

    Hi Sathish,

    This value can be easily capture from the EVM. Can you give more details why you need this values?  If you want to calculate power dissipation for this operating condition then I would suggest to use Webench model.

    It will help you to give all details for your operating conditions.

    Best regards,

    Tanvee

  • +1
    Prodigy 210 points

    Hi Tanvee,

    I am calculating switching loss due to internal MOSFET so that i need those values for calculation.

    In Webench internal MOSFET losses are not shown.

    Kindly send us the value for the above mentioned condition.

    In EVM I couldnt find any values related to rise time.(Doc referred:TPS628502EVM-092 User's Guide)

  • 0 in reply to Sathish Raja
    TI__Genius 15170 points

    Hi Sathish,

    Webench will help to calculate total power dissipation that includes switching losses. I was refereeing measuring EVM waveform for evaluation.

    Expected value would be 7-9ns for rise/fall time.

    Best regards,

    Tanvee