參數(shù)資料
型號: HFA25PB60
廠商: International Rectifier
英文描述: Ultrafast, Soft Recovery Diode
中文描述: 超快,軟恢復(fù)二極管
文件頁數(shù): 5/7頁
文件大?。?/td> 191K
代理商: HFA25PB60
HFA25TB60S
Bulletin PD-20616 rev. A 12/00
5
4. Q
rr
- Area under curve defined by t
rr
and I
t
rr
X I
RRM
Q
=
2
5. di
/dt - Peak rate of change of
current during t
b
portion of t
rr
Fig. 10
- Reverse Recovery Waveform and
Definitions
Fig. 9
- Reverse Recovery Parameter Test
Circuit
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
1. di
/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
to point where a line passing
through 0.75 I
and 0.50 I
RRM
extrapolated to zero current
REVERSE RECOVERY CIRCUIT
IRFP250
D.U.T.
L = 70μH
V = 200V
0.01
G
D
S
dif/dt
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