AUIRF3805S-7P Datasheet, PDF (6/14 Pages) International Rectifier – HEXFET® Power MOSFET

AUIRF3805S/L-7P
250
200
150
100
50
0
25
50 75 100 125 150 175
TC , Case Temperature (°C)
Fig 9. Maximum Drain Current vs.
Case Temperature
2.5
ID = 140A
VGS = 10V
2.0
1.5
1.0
0.5
-60 -40 -20 0 20 40 60 80 100120140160180
TJ , Junction Temperature (°C)
Fig 10. Normalized On-Resistance
vs. Temperature
1
D = 0.50
0.1
0.01
0.001
1E-005
0.20
0.10
0.05
0.02
0.01
SINGLE PULSE
( THERMAL RESPONSE )
τ_{J τJ}
τ_{1 τ1}
R_1R1
Ci= τi/Ri
Ci i/Ri
R_2R2
τ_{2 τ2}
R_{3R3 Ri (°C/W) τi (sec)}
τ_{Cτ 0.0794 0.000192}
τ_3τ3
0.1474 0.000628
0.2737 0.014012
Notes:
1. Duty Factor D = t1/t2
2. Peak Tj = P dm x Zthjc + Tc
0.0001
0.001
0.01
0.1
1
t1 , Rectangular Pulse Duration (sec)
Fig 11. Maximum Effective Transient Thermal Impedance, Junction-to-Case
6
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