PSPICE Electrical Model
.SUBCKT IRF640N 2 1 3 ;
rev 10 October 2000
CA 12 8 3.6e-9
CB 15 14 3.5e-9
CIN 6 8 2e-9
LDRAIN
DBODY 7 5 DBODYMOD
DBREAK 5 11 DBREAKMOD
DPLCAP 10 5 DPLCAPMOD
DPLCAP
DRAIN
2
5
10
RLDRAIN
RSLC1
51
DBREAK
EBREAK 11 7 17 18 225
EDS 14 8 5 8 1
EGS 13 8 6 8 1
ESG 6 10 6 8 1
EVTHRES 6 21 19 8 1
EVTEMP 20 6 18 22 1
+
RSLC2
5
51
ESLC
11
-
+
50
-
17
DBODY
RDRAIN
6
8
EBREAK 18
-
ESG
EVTHRES
+
16
IT 8 17 1
21
+
-
19
8
MWEAK
LGATE
EVTEMP
LDRAIN 2 5 1e-9
LGATE 1 9 5.78e-9
LSOURCE 3 7 3.92e-9
RGATE
GATE
1
+
6
-
18
22
MMED
9
20
MSTRO
RLGATE
LSOURCE
CIN
MMED 16 6 8 8 MMEDMOD
MSTRO 16 6 8 8 MSTROMOD
MWEAK 16 21 8 8 MWEAKMOD
SOURCE
3
8
7
RSOURCE
RLSOURCE
S1A
S2A
RBREAK 17 18 RBREAKMOD 1
RDRAIN 50 16 RDRAINMOD 83.5e-3
RGATE 9 20 7.6e-1
RLDRAIN 2 5 10
RLGATE 1 9 57.8
RBREAK
12
15
13
14
13
17
18
8
RVTEMP
19
S1B
S2B
13
CB
CA
IT
14
-
RLSOURCE 3 7 39.2
+
+
VBAT
RSLC1 5 51 RSLCMOD 1e-6
RSLC2 5 50 1e3
RSOURCE 8 7 RSOURCEMOD 10e-3
RVTHRES 22 8 RVTHRESMOD 1
RVTEMP 18 19 RVTEMPMOD 1
6
8
5
8
EGS
EDS
+
-
-
8
22
RVTHRES
S1A 6 12 13 8 S1AMOD
S1B 13 12 13 8 S1BMOD
S2A 6 15 14 13 S2AMOD
S2B 13 15 14 13 S2BMOD
VBAT 22 19 DC 1
ESLC 51 50 VALUE={(V(5,51)/ABS(V(5,51)))*(PWR(V(5,51)/(1e-6*38),2.5))}
.MODEL DBODYMOD D (IS = 1.2e-12 RS = 5.5e-3
XTI = 5.5 TRS1 = 1e-5 TRS2 = 8e-6 + CJO = 12.5e-10 TT = 1e-7 M = 0.42)
.MODEL DBREAKMOD D (RS = 2.5 TRS1 = 1e-3 TRS2 = -8.9e-6)
.MODEL DPLCAPMOD D (CJO = 2.5e-9 IS = 1e-30 N = 10 M = 0.9)
.MODEL MMEDMOD NMOS (VTO = 3.14 KP = 5 IS = 1e-30 N = 10 TOX = 1 L = 1u W = 1u RG = 7.6e-1)
.MODEL MSTROMOD NMOS (VTO = 3.68 KP = 100 IS = 1e-30 N = 10 TOX = 1 L = 1u W = 1u)
.MODEL MWEAKMOD NMOS (VTO = 2.76 KP = 0.05 IS = 1e-30 N = 10 TOX = 1 L = 1u W = 1u RG = 7.6 RS = 0.1)
.MODEL RBREAKMOD RES (TC1 =1.52e-3 TC2 = -2e-7)
.MODEL RDRAINMOD RES (TC1 = 9.8e-3 TC2 = 2.6e-5)
.MODEL RSLCMOD RES (TC1 = 3e-3 TC2 = 1e-6)
.MODEL RSOURCEMOD RES (TC1 = 1e-3 TC2 = 1e-6)
.MODEL RVTHRESMOD RES (TC1 = -2.3e-3 TC2 = -1.3e-5)
.MODEL RVTEMPMOD RES (TC1 = -2.8e-3 TC2 = 1.7e-6)
.MODEL S1AMOD VSWITCH (RON = 1e-5 ROFF = 0.1 VON = -8.5 VOFF= -1)
.MODEL S1BMOD VSWITCH (RON = 1e-5 ROFF = 0.1 VON = -1 VOFF= -8.5)
.MODEL S2AMOD VSWITCH (RON = 1e-5 ROFF = 0.1 VON = -0.1 VOFF= 0.2)
.MODEL S2BMOD VSWITCH (RON = 1e-5 ROFF = 0.1 VON = 0.2 VOFF= -0.1)
.ENDS
NOTE: For further discussion of the PSPICE model, consult A New PSPICE Sub-Circuit for the Power MOSFET Featuring Global
Temperature Options; IEEE Power Electronics Specialist Conference Records, 1991, written by William J. Hepp and C. Frank
Wheatley.
©2002 Fairchild Semiconductor Corporation
Rev. B
FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
