LM5160-Q1: Power dissipation calculate

Hi Team,

This part datasheet mentioned the Tj = Ta x (R_θJC(top) x P)

and follow the link for thermal information to see this method is hard to get the real value.

So we can used the Tj = Tc x (ψJT x P)  , right ?

Or , if you have any better idea in here, please give us some feedback to learn. Thanks!

Eddie