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IRF9540NSPBF_15 Datasheet, PDF (5/11 Pages) International Rectifier – Advanced Process Technology
24
20
16
12
8
4
0
25
50
75
100 125 150
TC , Case Temperature (°C)
Fig 9. Maximum Drain Current vs.
Case Temperature
IRF9540NS/LPbF
VDS
VGS
RG
RD
D.U.T.
-10V
Pulse Width ≤ 1 µs
Duty Factor ≤ 0.1 %
-
+ VDD
Fig 10a. Switching Time Test Circuit
VGS
10%
td(on) tr
td(off) tf
90%
VDS
Fig 10b. Switching Time Waveforms
10
1
D = 0.50
0.20
0.1
0.10
0.05
0.02
0.01
0.01
SINGLE PULSE
( THERMAL RESPONSE )
0.001
1E-006
1E-005
0.0001
τJ τJ
τ1 τ1
R1R1
Ci= τi/Ri
Ci i/Ri
R2R2
τ2 τ2
R3R3
Ri (°C/W) τi (sec)
τC 0.1737838 0.0000610
τ3τ3
0.4335992 0.0019590
0.4921007 0.0260060
Notes:
1. Duty Factor D = t1/t2
2. Peak Tj = P dm x Zthjc + Tc
0.001
0.01
0.1
t1 , Rectangular Pulse Duration (sec)
Fig 11. Maximum Effective Transient Thermal Impedance, Junction-to-Case
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