Finding a 2SJ295 Power MOSFET Spice Model

[mervincris]

is there a place where i could get a 2SJ295 power mosfet spice model? any recommendations would be greatly appreciated.

thanks.

 

[berkeman]

Who makes it? Have you checked the manufacturer's website? If no model is available, you can make your own from the datasheet.

 

[mervincris]

the only manufacturer that i found with a datasheet for the said power mosfet is hitachi. unfortunately, they don't have a spice model for that.

i'll just spend my time making my own model. by the way, does all kinds of mosfets share the same code for the spice model? thanks.

 

[berkeman]

See the link at the bottom of this page for SPICE models for MOSFETs from STMicroelectronics (formerly SGS Thomson):

http://www.st.com/stonline/products/families/transistors/power_mosfets/spice_models/spice_models.htm

A very good book about SPICE component modelling is "Semiconductor Device Modelling with SPICE", edited by Antognetti and Massobrio. Check out your local technical library to see if they have a copy you can borrow.

In that book's chapter 4, three levels of MOSFET model are discussed. I think that most SPICE programs would use the full model, but I don't know that for sure. The simpler models will run faster, but may lose some accuracy in some operating areas. For jellybean power applications of MOSFETs (where you aren't pushing the high-frequency modelling very much), it probably doesn't matter if a simpler model is used. Table 4-1 in the book lists all 36 of the model parameters, with default and typical values, and says what level models the parameters apply to.