HUFA76407DK8T_10 Datasheet, PDF (11/12 Pages) Fairchild Semiconductor – 3.5A, 60V, 0.105 Ohm, Dual N-Channel, Logic Level UltraFET® Power MOSFET

SPICE Thermal Model
REV 1June 1999
HUFA76407DK8
Copper Area = 0.02 in²
CTHERM1 th 8 8.5e-4
CTHERM2 8 7 1.8e-3
CTHERM3 7 6 5.0e-3
CTHERM4 6 5 1.3e-2
CTHERM5 5 4 4.0e-2
CTHERM6 4 3 9.0e-2
CTHERM7 3 2 4.0e-1
CTHERM8 2 tl 1.4
RTHERM1 th 8 3.5e-2
RTHERM2 8 7 6.0e-1
RTHERM3 7 6 2
RTHERM4 6 5 8
RTHERM5 5 4 18
RTHERM6 4 3 39
RTHERM7 3 2 42
RTHERM8 2 tl 48
SABER Thermal Model
Copper Area = 0.02 in²
template thermal_model th tl
thermal_c th, tl
{
ctherm.ctherm1 th 8 = 8.5e-4
ctherm.ctherm2 8 7 = 1.8e-3
ctherm.ctherm3 7 6 = 5.0e-3
ctherm.ctherm4 6 5 = 1.3e-2
ctherm.ctherm5 5 4 = 4.0e-2
ctherm.ctherm6 4 3 = 9.0e-2
ctherm.ctherm7 3 2 = 4.0e-1
ctherm.ctherm8 2 tl = 1.4
rtherm.rtherm1 th 8 = 3.5e-2
rtherm.rtherm2 8 7 = 6.0e-1
rtherm.rtherm3 7 6 = 2
rtherm.rtherm4 6 5 = 8
rtherm.rtherm5 5 4 = 18
rtherm.rtherm6 4 3 = 39
rtherm.rtherm7 3 2 = 42
rtherm.rtherm8 2 tl = 48
}
COMPONENT
CTHERM6
CTHERM7
CTHERM8
RTHERM6
RTHERM7
RTHERM8
0.02 in²
9.0e-2
4.0e-1
1.4
39
42
48
HUFA76407DK8T_F085
th
JUNCTION
RTHERM1
8
RTHERM2
7
RTHERM3
6
RTHERM4
5
RTHERM5
4
RTHERM6
3
RTHERM7
2
RTHERM8
CTHERM1
CTHERM2
CTHERM3
CTHERM4
CTHERM5
CTHERM6
CTHERM7
CTHERM8
tl
AMBIENT
TABLE 1. THERMAL MODELS
0.14 in²
0.257 in²
1.3e-1
1.5e-1
6.0e-1
4.5e-1
2.5
2.2
26
20
32
31
35
38
0.38 in²
1.5e-1
6.5e-1
3
20
29
31
0.493 in²
1.5e-1
7.5e-1
3
20
23
25
HUFA76407DK8T_F085 Rev. C1
11
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