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TPS61175: Calculation of TPS61175 Soft start duration

RYO
Intellectual 2000 points
Part Number: TPS61175

Hello all,

I would like to know how to calculate the soft start duration of TPS61175. In the datasheet, there is only a table showing 2 types of C3 in the Table 3. If there is any equations to calculate the ss duration, can you share it with me? I cannot calculate the ss duration with this table (maybe cannot calculated with Q=CV?).

Thank you,
RYO

  • 0
    TI__Mastermind 40080 points

    Hi Sir,

    We didn't have the formaul to calculate the SS time. SS voltage clamp COMP pin voltage. So the soft startup time doesn't has a linear relationship with the output voltage rise time. it is related to the Vin, Vo, Io and the total output capacitance.

    What is your Vin, Vo, Io and the output capacitance in your application?