參數(shù)資料
型號(hào): 8ETH03-1
廠商: International Rectifier
英文描述: Ultrafast Rectifier
中文描述: 超高速整流器
文件頁數(shù): 5/8頁
文件大小: 199K
代理商: 8ETH03-1
5
8ETH03, 8ETH03S, 8ETH03-1
Bulletin PD-20023 rev. C 09/01
www.irf.com
Fig. 2 - Reverse Recovery Waveform and Definitions
IRFP250
D.U.T.
L = 70μH
V = 200V
0.01
G
D
S
dif/dt
ADJUST
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
F
/dt
Fig. 1 - Reverse Recovery Parameter Test Circuit
Reverse Recovery Circuit
/dt
4. Q
rr
- Area under curve defined by t
rr
and I
RRM
t
rr
x I
RRM
5. di
(rec) M
/ dt - Peak rate of change of
current during t
b
portion of t
rr
1. di
/dt - Rate of change of current through zero
crossing
2. I
RRM
- Peak reverse recovery current
3. t
- 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
Q
rr
=
2
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