DF252
10000
I
F
Q
S
=
∫
50µs
0
Conditions:
T
j
= 150˚C,
QS
V
R
= 100V
Reverse recovered charge Q
S
- (µC)
1000
t
p
= 1ms
dI
R
/dt
I
RR
I
F
= 2000
I
F
= 1000
I
F
= 200
I
F
= 500
100
I
F
= 100
10
1
10
100
Rate of rise of reverse current dI
R
/dt - (A/µs)
Fig.3 Recovered charge
1000
1000
Conditions:
T
j
= 150˚C,
V
R
= 100V
I
F
= 2000A
Reverse recovery current I
RR
- (A)
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.4 Typical reverse recovery current vs rate of fall of forward current
5/8