IRGB20B60PD1PbF
www.irf.com 9
Fig. WF1 - Typ. Turn-off Loss Waveform
@ T
J
= 125°C using Fig. CT.3
Fig. WF2 - Typ. Turn-on Loss Waveform
@ T
J
= 125°C using Fig. CT.3
Fig. WF3 - Reverse Recovery Waveform and
Definitions
-50
0
50
100
150
200
250
300
350
400
450
-0.20 0.00 0.20 0.40 0.60 0.80
Time(µs)
V
CE
(V)
-2
0
2
4
6
8
10
12
14
16
18
I
CE
(A)
90% I
CE
5% V
CE
5% I
CE
Eoff Loss
tf
-50
0
50
100
150
200
250
300
350
400
450
7.75 7.85 7.95 8.05 8.15
Time (µs)
V
CE
(V)
-5
0
5
10
15
20
25
30
35
40
45
I
CE
(A)
TEST CURRENT
90% test current
5% V
CE
10% test current
Eon Loss
tr
t
a
t
b
t
rr
Q
rr
I
F
I
RRM
I
RRM
0.5
di(rec)M/dt
0.75
I
RRM
5
4
3
2
0
1
di /dt
f
4. Q
rr
- Area under curve defined by t
rr
and I
RRM
t
rr
X I
RRM
Q
rr
=
2
5. di
(rec)M
/dt - Peak rate of change of
current during t
b
portion of t
rr
1. di
f
/dt - Rate of change of current
through zero crossing
2. I
RRM
- Peak reverse recovery current
3. trr - Reverse recovery time measured
from zero crossing point of negative
going I
F
to point where a line passing
through 0.75 I
RRM
and 0.50 I
RRM
extrapolated to zero current
