A
[email protected]
- Jan 1, 1970
- 0
I'm trying to figure out how hot the junction of a diode will get. I
know that 1.75A will be passing through it. I know the ambient
temperature willbe 25C. I look at the V/I table in the datasheet. It
has several curves depending on junction temperature. Looking at the
curves, you can see that the drop across the diode for a given current
changes depending on junction temperature. But junction temperature is
dependent on the power dissipated inside the diode, which is
calculated using the drop across the diode, which is affected by the
junction temperature....AHHHHH!! (brain exploding sound).
So it seems to be chicken or the egg. How do I find the "equilibrium"
point?
Its the MBRD650 (data sheet at www.irf.com)
know that 1.75A will be passing through it. I know the ambient
temperature willbe 25C. I look at the V/I table in the datasheet. It
has several curves depending on junction temperature. Looking at the
curves, you can see that the drop across the diode for a given current
changes depending on junction temperature. But junction temperature is
dependent on the power dissipated inside the diode, which is
calculated using the drop across the diode, which is affected by the
junction temperature....AHHHHH!! (brain exploding sound).
So it seems to be chicken or the egg. How do I find the "equilibrium"
point?
Its the MBRD650 (data sheet at www.irf.com)