IRFR/U1010Z
2.5
2.0
1.5
1.0
0.5
100
80
60
40
20
0
I
= 42A
LIMITED BY PACKAGE
D
V
= 10V
GS
25
50
75
100
125
150
175
-60 -40 -20
0
20 40 60 80 100 120 140 160 180
T
, Case Temperature (°C)
C
T
, Junction Temperature (°C)
J
Fig 10. Normalized On-Resistance
Fig 9. Maximum Drain Current vs.
vs.Temperature
CaseTemperature
10
1
0.1
D = 0.50
0.20
0.10
0.05
R1
R2
R2
R3
R3
Ri (°C/W) τi (sec)
0.3854 0.000251
R1
τ
JτJ
τ
τ
Cτ
τ
0.02
0.01
1τ1
τ
2 τ2
3τ3
0.3138 0.001092
0.4102 0.015307
0.01
0.001
Ci= τi/Ri
Notes:
1. Duty Factor D = t1/t2
2. Peak Tj = P dm x Zthjc + Tc
SINGLE PULSE
( THERMAL RESPONSE )
1E-006
1E-005
0.0001
0.001
0.01
0.1
t
, Rectangular Pulse Duration (sec)
1
Fig 11. Maximum Effective Transient Thermal Impedance, Junction-to-Case
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