May I know recommended operation ambient temperature range for TPS3700? Thanks a lot!
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Hi Ann Lien,
One more thing to add, the TPS3700 consumes very little current and when you calculate the junction temperature of the device at worst conditions (IDD = 13uA, TA = 125C, VDD = 18V, Rtheta-ja = 204.6 C/W) and assuming a 6-pin SOT package, the junction temperature is almost the same as the ambient temperature. See below:
Theta JA = 125C + (VDD*IDD)*(Rtheta-ja)
Theta JA = 125C + (18V*13uA)*(204.6 C/W)
Theta JA = 125.05C
Therefore, the recommended ambient operating temperature can range from -40C to 125C.
I hope this explanation helps answer your question.