DF685
100000
I
F
Q
S
=
∫
50µs
0
Conditions:
T
j
= 150˚C,
QS
V
R
= 100V
Reverse recovered charge Q
S
- (µC)
10000
t
p
= 1ms
dI
R
/dt
I
RR
1000
I
F
= 4000A
I
F
= 2000A
I
F
= 1000A
I
F
= 200A I
F
= 500A
I
F
= 100A
100
1
10
100
Rate of rise of reverse current dI
R
/dt - (A/µs)
Fig. 4 Recovered charge
1000
10000
Conditions:
T
j
= 150˚C,
V
R
= 100V
Reverse recovery current I
RR
- (A)
1000
I
F
= 4000A
I
F
= 2000A
I
F
= 1000A
I
F
= 500A
I
F
= 200A
100
I
F
= 100A
10
1
10
100
Rate of rise of reverse current dI
R
/dt - (A/µs)
1000
Fig. 5 Typical reverse recovery current vs rate of rise of reverse current
5/8