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TPS659037: How to calculate the max case temperature

Lin_Charles
Expert 4260 points
Part Number: TPS659037

Hi, all

   It is nice to find you all here. I want to how to use thermal METRIC to calculate the max working case temperature? Thanks.

  • 0
    TI__Genius 10000 points
    Hi,

    We have this app note to better explain our thermal specifications: www.ti.com/.../spra953c.pdf

    In order to calculate the max case temperature, you can use the equation below:
    Tj = Tc + (0.2*Power Dissipation)
    where Tj is the max junction temperature (125C), Tc is the max case temperature, and 0.2 is the junction-to-top characterization parameter.

    With these values, and your calculated power dissipation, you can solve for the max Tc.

    Thanks,
    Nastasha