update with recent model parameters

vdmos/IXTP6N100D2-n-weak-inv.cir

@@ -9,18 +9,22 @@ m2 d g s2 s2 IXTP6N100D2_2
 *.MODEL IXTP6N100D2 VDMOS(KP=2.9 RS=0.1 RD=1.3 RG=1 VTO=-2.7 LAMBDA=0.03 CGDMAX=3000p CGDMIN=2p CGS=2915p TT=1371n a=1 IS=2.13E-08 N=1.564 RB=0.0038 m=0.548 *Vj=0.1 Cjo=3200pF subthres=2.5m)
 
 * equivalent ngspice model parameters
-.MODEL IXTP6N100D2 VDMOS(KP=2.9 RS=0.1 RD=1.3 RG=1 VTO=-2.7 LAMBDA=0.03 CGDMAX=3000p CGDMIN=2p CGS=2915p TT=1371n a=1 IS=2.13E-08 N=1.564 RB=0.0038 m=0.548 Vj=0.1 Cjo=3200pF subslope=43m subshift=-25m)
+.MODEL IXTP6N100D2_2 VDMOS(KP=2.9 RS=0.1 RD=1.3 RG=1 VTO=-2.7 LAMBDA=0.03 CGDMAX=3000p CGDMIN=2p CGS=2915p TT=1371n a=1 IS=2.13E-08 N=1.564 RB=0.0038 m=0.548 Vj=0.1 Cjo=3200pF ksubthres=39m)
+
+* equivalent ngspice model parameters, trying to make output similar to data sheet Fig. 2
+.MODEL IXTP6N100D2 VDMOS(KP=6 RS=0.1 RD=1.3 RG=1 VTO=-2.7 LAMBDA=0.007 CGDMAX=3000p CGDMIN=2p CGS=2915p TT=1371n a=1 IS=2.13E-08 N=1.564 RB=0.0038 m=0.548 Vj=0.1 Cjo=3200pF ksubthres=39m rq=4 vq=200 mtriode=0.1)
 
 vd d 0 -0.6
 vg g 0 -2.3
 vs s 0 0
+vs2 s2 0 0
 
 .control
 dc  vg -3.1 -2.1 0.01 vd 0.2 1 0.2
 plot vs#branch
 plot vs#branch ylog
-dc  vd 0 5 0.01 vg -3.2 -2 0.2
-plot vs#branch
+dc  vd 0 60 0.1 vg -3 5 1
+plot vs#branch vs2#branch xlimit 0 60 ylimit 0 14
 .endc
 
 .end