Typical Characteristics (Continued)
1 0 0
D = 0 .5
※
N otes
1. Z θ JC(t)
2. D uty Factor, D =t1/t2
:
℃
/W M ax.
=
0.9
0 .2
3. T JM
-
TC
=
P D M * Zθ JC(t)
1 0 -1
0 .1
0 .0 5
PDM
0 .0 2
0 .0 1
t1
t2
sin g le p u lse
1 0 -2
1 0-5
1 0-4
1 0-3
1 0-2
1 0-1
1 00
1 01
t1 , S q u a re W a v e P u ls e D u ra tio n [s e c ]
Figure 11-1. Transient Thermal Response Curve for IRF640B
D = 0 .5
1 0 0
0 .2
0 .1
※
N otes
1. Z θ JC(t)
2. D uty Factor, D =t1/t2
:
℃
/W M ax.
=
2.89
3. T JM
- T C = P D M * Zθ JC(t)
0 .0 5
1 0 -1
0 .0 2
0 .0 1
PDM
t1
t2
sin g le p u lse
1 0 -2
1 0-5
1 0-4
1 0-3
1 0-2
1 0-1
1 00
1 01
t1 , S qu a re W ave P u lse D u ra tion [se c]
Figure 11-2. Transient Thermal Response Curve for IRFS640B
©2001 Fairchild Semiconductor Corporation
Rev. A, November 2001
FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
