Hello MrAl,
Link 1:
https://www.google.co.nz/search?tbo=p&tbm=bks&q=isbn:1439860467
In the above link saying that (page 203 last paragraph), The most important parameters for power electronics applications are IS, BV, IBV, TT, and CJO.
So, these values are enough to calculate in order to use as a diode (i.e rectifier) in power electronics applications. (or) I have to calculate all of them which is mentioned the in the below link.
Link 2:
Actually, I have calculated IS, CJO and N by following the above two links and the formula gave by MrAl.
But, there are not clearly mentioned in the above two links about the following questions……
1) How to calculate this Ohmic Resistance RS ? formula for RS; ( value = RS / area ); how to calculate value and area ?
2) How to calculate Transit time TT ? In the data sheet they are not mentioned TT value. In order to calculate TT, how to know Reverse recovery charge, QRR and IFMif those values which is not mentioned in the data sheet?
3) How to calculate grading coefficient M ? From the above 2nd link (in the 2nd table), M = 0.333 they are consider for Schottky Diodes but the default is 0.5. how they are consider 0.33 for Schottky Diode ?
4) How to calculate activation energy EG ? From the above 2nd link (in the 2nd table), EG = 0.69 they are consider for Schottky Diodes but the default is 1.11. how they are consider 0.69 for Schottky Diode ?
5) How to calculate IS temperature exponent XTI ? From the above 2nd link (in the 2nd table), XTI = 2 they are consider for Schottky Diodes but the default is 3. how they are consider 2 for Schottky Diode ?
6) How to calculate the Junction Potential VJ? From the above 2nd link (in the 2nd table), The VJ value some times they consider as 0.6 and 1. the default is 1. how they are consider 0.6 for Schottky Diode ?
So, If the parameters data not available in the data sheet, how I have to choose the values.
Can I consider as a default values (or) what ever the values are chosen for Schottky
Diodes which is mentioned in the table 2 from the above link 2.
Please, let me know the good explanation about all 6 questions ? then only I will get full confident about how to develop the spice model for Schottky diodes!