I have a question about temperature coefficients.
I'm using an LM340 (5 volt regulator) and don't understand how much heat it will disapate and how much it will change over temp.
The datasheet specs 0.8mV/c but doesn't show a junction to case spec.
My questions:
Is 0.8mV/c positive or negative from what... 25 degrees C?
So if change my temperature 10 degrees C, my output voltage will be 8mv higher (or lower) and from what external temp?
Also, how do I calcualte an accurate junction to case number?