MPSA64 Spice Model Needed

Hello Jim,

Might want to ask NXP whether they can supply one. AFAIR they didn't publish it for the MPSA64. Maybe you could judge how good their models are by looking at the model for the MPSA56:

Just for everyone's future reference: I find a lot of Spice models by using this site's huge index of on-line Spice models:

Cheers,

Tom Gootee

I hadn't noticed this before. Here is what I have handy.

• MPSA64 Darlington Transistor "macromodel" subcircuit
• created using Parts release 8.1 on 01/07/98 at 15:06

• Parts is an OrCAD product.

• connections: Collector
• | Base
• | | Emitter
• | | | .SUBCKT MPSA64 1 2 3
• Q1 1 2 4 Q1model Q2 1 4 3 Q2model 0.807561

• IS=10.00E-15 RS=1.000E-3 N=1 XTI=3
• CJO=10.00E-21 VJ=1 M=.5 FC=.5 .MODEL Q1model PNP
• IS=1.152217e-014 BF=295.916 NF=1 VAF=100
• IKF=4.152566e-001 ISE=1.018001e-013 NE=1.54779 BR=1.91325
• NR=1 VAR=100 IKR=0.358632 ISC=1.81264p
• NC=1.26296 RB=5.62906 NK=0.8621
• RE=0 RC=1.78532 EG=1.110
• CJE=2.000E-12 VJE=.75 MJE=.33 TF=1n
• XTF=10 VTF=10 ITF=1 CJC=2.000E-12
• VJC=.75 MJC=.33 XCJC=.9 FC=.5
• TR=1n .MODEL Q2model PNP
• IS=1.152217e-014 BF=295.916 NF=1 VAF=100
• IKF=4.152566e-001 ISE=1.018001e-013 NE=1.54779 BR=1.91325
• NR=1 VAR=100 IKR=0.358632 ISC=1.81264p
• NC=1.26296 RB=5.62906 NK=0.8621
• RE=0 RC=1.78532 EG=1.110
• CJE=2.000E-12 VJE=.75 MJE=.33 TF=1n
• XTF=10 VTF=10 ITF=1 CJC=0
• VJC=.75 MJC=.33 XCJC=.9 FC=.5
• TR=1n .ENDS

DoodleBug65 posted one (from Circuitmaker) that had the relative area of Q2 as _0.1_, which makes more physical sense.

"created using Parts release 8.1 on 01/07/98" means it was created using PSpice Parts, which is pure crap.

But thanks for the input!!

...Jim Thompson

Thanks, Tom, I should have remembered that myself ;-)

...Jim Thompson