
AUIRFR/U4105Z
30
25
2.5
I D = 18A
VGS = 10V
2.0
20
15
1.5
10
1.0
5
0
0.5
25
50
75
100
125
150
175
-60 -40 -20
0
20 40 60 80 100 120 140 160 180
T J , Junction Temperature (°C)
Fig 9. Maximum Drain Current Vs.
Case Temperature
10
D = 0.50
T J , Junction Temperature (°C)
Fig 10. Normalized On-Resistance
Vs. Temperature
1
0.20
0.10
τ C
0.1
0.05
0.02
0.01
τ J
τ J
τ 1
τ 1
R 1
R 1
τ 2
R 2
R 2
τ 2
R 3
R 3
τ 3
τ 3
τ
Ri (°C/W) τ i (sec)
1.100 0.000174
1.601 0.000552
0.01
SINGLE PULSE
( THERMAL RESPONSE )
Ci= τ i / Ri
Ci i / Ri
0.418 0.007193
Notes:
1. Duty Factor D = t1/t2
2. Peak Tj = P dm x Zthjc + Tc
0.001
1E-006
1E-005
0.0001
0.001
0.01
t1 , Rectangular Pulse Duration (sec)
Fig 11. Maximum Effective Transient Thermal Impedance, Junction-to-Case
6
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