Hi,
I am trying to calculate the pcb thermal cooling area using the below formula:
Area = Pd x Theta_SA/(Tjunction -Tambient -Pd x(Theta_JC + Theta_CS))
where Pd = Power dissipation
Theta_SA = Thermal resistance surface to ambient
Theta_JC = Thermal resistance junction to case
Theta_CS = Thermal resistance case to surface
However, I could not find the values of the Theta in the datasheet. Can I know where can I get those values?
Appreciate your kind help!
Best Rgds
Ruzhan