© 2008 IXYS CORPORATION, All rights reserved
Fig. 12. Inductive Switching
Energy Loss vs. Gate Resistance
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
2 3 4 5 6 7 8 9 101112131415
R
G
- Ohms
E
off
- MilliJoules
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
E
on
- MilliJoules
E
off
E
on
- - - -
T
J
= 125ºC , V
GE
= 15V
V
CE
= 480V
I
C
= 90A
I
C
= 60A
Fig. 17. Inductive Turn-off
Switching Times vs. Junction Temperature
120
140
160
180
200
220
240
260
280
300
320
25 35 45 55 65 75 85 95 105 115 125
T
J
- Degrees Centigrade
t
f
- Nanoseconds
130
140
150
160
170
180
190
200
210
220
230
t
d(off)
- Nanoseconds
t
f
t
d(off)
- - - -
R
G
= 2Ω
, V
GE
= 15V
V
CE
= 480V
I
C
= 90A, 60A
Fig. 15. Inductive Turn-off
Switching Times vs. Gate Resistance
240
250
260
270
280
290
300
2 3 4 5 6 7 8 9 10 11 12 13 14 15
R
G
- Ohms
t
f
- Nanoseconds
100
200
300
400
500
600
700
t
d(off)
- Nanoseconds
t
f
t
d(off)
- - - -
T
J
= 125ºC,
V
GE
= 15V
V
CE
= 480V
I
C
= 90A
I
C
= 60A
Fig. 13. Inductive Switching
Energy Loss vs. Collector Current
0
1
2
3
4
5
6
7
8
30 40 50 60 70 80 90
I
C
- Amperes
E
off
- MilliJoules
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
E
on
- MilliJoules
E
off
E
on
- - - -
R
G
= 2
Ω
,
V
GE
= 15V
V
CE
= 480V
T
J
= 125ºC
T
J
= 25ºC
Fig. 14. Inductive Switching
Energy Loss vs. Junction Temperature
0
1
2
3
4
5
6
7
8
25 35 45 55 65 75 85 95 105 115 125
T
J
- Degrees Centigrade
E
off
- MilliJoules
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
E
on
- MilliJoules
E
off
E
on
- - - -
R
G
= 2Ω
,
V
GE
= 15V
V
CE
= 480V
I
C
= 90A
I
C
= 60A
Fig. 16. Inductive Turn-off
Switching Times vs. Collector Current
0
50
100
150
200
250
300
350
400
450
30 40 50 60 70 80 90
I
C
- Amperes
t
f
- Nanoseconds
120
140
160
180
200
220
240
260
280
300
t
d(off)
- Nanoseconds
t
f
t
d(off)
- - - -
R
G
= 2Ω
, V
GE
= 15V
V
CE
= 480V
T
J
= 125ºC
T
J
= 25ºC
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