70-W424NIA800SH-M800F Datasheet, PDF (24/32 Pages) Vincotech – Snubber diode for optional asymmetrical inductance

70-W424NIA800SH-M800F
datasheet
Buck switching definitions
General conditions
T_j
= 125 °C
R _gon
= 0,625 Ω
R _goff
= 0,625 Ω
Test setup inductance: 9nH
Figure 1
Buck IGBT
Figure 2
Buck IGBT
Turn-off Switching Waveforms & definition of t _doff, t _Eoff
(t _{E off} = integrating time for E _off)
Turn-on Switching Waveforms & definition of t _don, t _Eon
(t _{E on} = integrating time for E _on)
150
%
125
250
%
200
100
75 _{VGE 90%}
V_{CE 90%}
150
50
100
25
t_don
50
I_{C 1%}
0
V_{GE 10%}
V_{CE 3%}
0
-25
-50
-0,1
0
V _GE (0%) =
V _GE (100%) =
V _C (100%) =
I _C (100%) =
t _doff =
t _{E off} =
0,1
0,2
0,3
0,4
0,5time _(us) 0,6
-8
V
15
V
600
V
804
A
0,23
µs
0,61
µs
-50
2,2
2,3
2,4
2,5
V _GE (0%) =
V _GE (100%) =
V _C (100%) =
I _C (100%) =
t _don =
t _{E on} =
-8
V
15
V
600
V
804
A
0,10
µs
0,29
µs
2,6
2,7
time(us)
Figure 3
Buck IGBT
Turn-off Switching Waveforms & definition of t _f
150
%
125
fitted
100
I_{c 90%}
75
I_{c 60%}
50
I_{c 40%}
25
I_{c 10%}
0
Figure 4
Buck IGBT
Turn-on Switching Waveforms & definition of t _r
300
%
250
200
150
100
50
0
I_{C 90%}
I_{C 10%}
-25
0,0
0,1
0,2
V _C (100%) =
I _C (100%) =
t_f =
600
V
804
A
0,046
µs
0,3
0,4
time (us)
-50
2,3
2,4
2,5
V _C (100%) =
I _C (100%) =
t_r =
600
V
804
A
0,04
µs
2,6 _time(us) 2,7
copyright Vincotech
24
14 Nov 2015 / Revision 4