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V23990-P849-X4X-P2-14 Datasheet, PDF (8/20 Pages) Vincotech – Industrial Drives Embedded Generation
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Figure 13
IGBT transient thermal impedance
as a function of pulse width
ZthJH = f(tp)
101
V23990-P849-A48/A49/C49/C49-PM
preliminary datasheet
Output Inverter
Figure 14
FRED transient thermal impedance
as a function of pulse width
ZthJH = f(tp)
101
100
100
10-1
10-2
10-5
10-4
10-3
10-2
With
D=
RthJH =
tp / T
2,16
K/W
IGBT thermal model values
R (C/W)
0,05
0,25
0,99
0,45
0,24
0,18
Tau (s)
4,1E+00
5,5E-01
1,0E-01
1,9E-02
3,3E-03
4,0E-04
D = 0,5
0,2
0,1
0,05
0,02
0,01
0,005
0.000
10-1
100 tp (s)
101
10-1
10-2
10-5
10-4
10-3
10-2
With
D=
RthJH =
tp / T
2,68
K/W
FRED thermal model values
R (C/W)
0,05
0,27
1,07
0,69
0,36
0,25
Tau (s)
7,9E+00
7,3E-01
1,3E-01
2,5E-02
3,6E-03
4,3E-04
D = 0,5
0,2
0,1
0,05
0,02
0,01
0,005
0.000
10-1
100
tp (s) 101
copyright Vincotech
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Revision: 2
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