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| IRF840B Datasheet, PDF (5/9 Pages) Fairchild Semiconductor – 500V N-Channel MOSFET | |||
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IRF840B/IRFS840B
Typical Characteristics (Continued)
100
D = 0.5
0.2
1 0 -1
0.1
0.05
0.02
0.01
1 0 -2
sin gle pu lse
â» N otes :
1. Z θ JC(t) = 0.93 â /W M ax.
2. D uty Factor, D =t1/t2
3 . T JM - T C = P DM * Z θ JC(t)
PDM
t1
t2
1 0 -5
1 0 -4
1 0 -3
1 0 -2
1 0 -1
100
101
t1, S qu a re W ave P u lse D u ra tion [se c]
Figure 11-1. Transient Thermal Response Curve for IRF840B
D = 0.5
100
0.2
0.1
1 0 -1
0.05
0.02
0.01
1 0 -2
1 0 -5
â» N otes :
1. Z θ JC(t) = 2.86 â /W M ax.
2. D uty Factor, D =t /t
12
3 . T JM - T C = P DM * Z θ JC(t)
sin gle pu lse
PDM
t1
t2
1 0 -4
1 0 -3
1 0 -2
1 0 -1
100
101
t1, S qu a re W ave P u lse D u ra tion [se c]
Figure 11-2. Transient Thermal Response Curve for IRFS840B
2014-8-13
5
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