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  • TI Thinks Resolved

CSD13385F5: How to calculate the Qg with different Vds,Vgs and Iout in linear zone

Part Number: CSD13385F5

Hi team:

Do you know the formulas to calculate the Qg with different Vds,Vgs and Iout in different zone(linear & sat)? Thank you!

  • Vental,
    If you think of the gate as a capacitor, Qg is primarily a function of the gate to source bias you want to drive the FET with, and the amount of charge required to drive at that bias is provided in Figure 4 of the datasheet.

    VDS is irrelevant for the input charge. Not sure what you mean by Iout?

    Best Regards!

    Brett Barr

    Product Marketing Engineer

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