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Psi J-Case-top ~ 30°C/W
The best we can do in this situation is to use Psi J-Case-top to characterize the application.
Power up the circuit wait for 10 minutes then make a case temperature measurement.
Then calculate the junction temperature.
Tj=Tcase + Psi J-Case-top*Pd
Thank you.
Answered by: ON Semiconductor
2013-02-05 09:58:42.436