IRFR/U3710Z
60
50
ID, Drain Current (A)
3.0
Limited By Package
RDS(on) , Drain-to-Source On Resistance
(Normalized)
ID = 56A
VGS = 10V
2.5
40
30
20
10
0
25
50
75
100
125
150
175
T C , Case Temperature (°C)
2.0
1.5
1.0
0.5
-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
Fig 10.
Normalized On-Resistance
vs. Temperature
10
Thermal Response ( Z thJC )
1
D = 0.50
0.20
0.10
0.05
0.02
0.01
0.1
τ
J
R
1
R
1
τ
J
τ
1
τ
2
R
2
R
2
R
3
R
3
τ
3
τ
C
τ
τ
3
0.01
τ
1
τ
2
Ri (°C/W)
τi
(sec)
0.576
0.000540
0.249
0.001424
0.224
0.007998
0.001
SINGLE PULSE
( THERMAL RESPONSE )
Ci=
τi/Ri
Ci i/Ri
Notes:
1. Duty Factor D = t1/t2
2. Peak Tj = P dm x Zthjc + Tc
0.0001
0.001
0.01
0.1
0.0001
1E-006
1E-005
t1 , Rectangular Pulse Duration (sec)
Fig 11.
Maximum Effective Transient Thermal Impedance, Junction-to-Case
5 / 11
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