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Old 23rd September 2003, 04:25 PM   #1
Bonsai is offline Bonsai  Europe
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Join Date: Jul 2003
Location: Europe
Default Spice Models

Hi,
anyone know where I can get spice models for the IRF250 and IRF9250 or their 240 and 9240 variants?
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Old 23rd September 2003, 04:39 PM   #2
Fred Dieckmann is offline Fred Dieckmann  United States
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Location: Spain or the pueblo of Los Angeles
Unhappy IRF9250

Yes I would for all 4 parts if there actually was an IRF9250. Sorry I can't help.
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Old 24th September 2003, 02:36 AM   #3
andy_c is offline andy_c  United States
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Hi ACR,

Here's what I have.

.model IRF240 NMOS(Level=3 Gamma=0 Delta=0 Eta=0 Theta=0 Kappa=0.2 Vmax=0 Xj=0
+ Tox=100n Uo=600 Phi=.6 Rs=5.466m Kp=20.82u W=.44 L=2u Vto=3.814
+ Rd=97.84m Rds=888.9K Cbd=1.813n Pb=.8 Mj=.5 Fc=.5 Cgso=1.977n
+ Cgdo=490.5p Rg=3.604 Is=5.191p N=1 Tt=312n)

.model IRF9240 PMOS(Level=3 Gamma=0 Delta=0 Eta=0 Theta=0 Kappa=0.2 Vmax=0 Xj=0
+ Tox=100n Uo=300 Phi=.6 Rs=80.81m Kp=10.53u W=1.9 L=2u
+ Vto=-3.807 Rd=.2515 Rds=888.9K Cbd=1.436n Pb=.8 Mj=.5 Fc=.5
+ Cgso=4.933n Cgdo=51.23p Rg=.6716 Is=179.4E-18 N=2 Tt=325n)

.model IRF250 NMOS(Level=3 Gamma=0 Delta=0 Eta=0 Theta=0 Kappa=0.2 Vmax=0 Xj=0
+ Tox=100n Uo=600 Phi=.6 Rs=4.484m Kp=19.93u W=1.1 L=2u Vto=3.804
+ Rd=50.32m Rds=888.9K Cbd=3.481n Pb=.8 Mj=.5 Fc=.5 Cgso=1.461n
+ Cgdo=401.8p Rg=5.545 Is=40.52p N=1 Tt=340n)
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Old 24th September 2003, 08:01 AM   #4
Bonsai is offline Bonsai  Europe
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THanks Fred - much appreciated.
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Old 24th September 2003, 08:34 AM   #5
Fred Dieckmann is offline Fred Dieckmann  United States
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Join Date: Oct 2002
Location: Spain or the pueblo of Los Angeles
Wink you can lead a horse to water.......

I wasn't trying be totally obnoxious when I told you that there was no IRF9250, I thought you would go to the IRF website and confirm, which is what I did when I didn't recognize the number. The Spice models are there and take about 5 minutes of poking around to find.

http://www.irf.com/product-info/models/

Five minutes with the Google search engine and an entry of "mosfet Spice models" and you would find:

http://www.aplac.hut.fi/aplac/models/main.html

I don't mind helping people who spent at least 5 to 10 minutes of effort on their own before expecting someone else to do it for them. Isn't this forum still called Do It Yourself audio?
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Old 24th September 2003, 09:44 AM   #6
Bonsai is offline Bonsai  Europe
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Join Date: Jul 2003
Location: Europe
I misread the email trail. Sorry, not only can I not find models on the IR website, but I also can't read properly. So let me try gain

Thank you andy_C! much appreciated.

Fred, you sound like my boss.
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