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| 60EPU06 Datasheet, PDF (5/7 Pages) International Rectifier – ULTRAFAST SOFT RECOVERY DIODE | |||
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60EPU06/ 60APU06
Bulletin PD-20771 Rev.B 01/04
Reverse Recovery Circuit
VR = 200V
L = 70µH
0.01 â¦
D.U.T.
dif/dt
ADJUST G
di F /dt
D
IRFP250
S
Fig. 7 - Reverse Recovery Parameter Test Circuit
(3) Formula used: TC = TJ - (Pd + PdREV) x RthJC ;
Pd = Forward Power Loss = IF(AV) x VFM @ (IF(AV) / D) (see Fig. 6);
PdREV = Inverse Power Loss = VR1 x IR (1 - D); IR @ VR1 = 80% rated VR
IF
0
3
trr
ta
tb
1 ddiifF/d/dtt
2 I RRM
Q rr 4
0.5 I RRM
di(rec)M/dt 5
0.75 IRRM
1. diF/dt - Rate of change of current through zero
crossing
2. IRRM - Peak reverse recovery current
3. trr - Reverse recovery time measured from zero
crossing point of negative going IF to point where
a line passing through 0.75 IRRM and 0.50 IRRM
extrapolated to zero current
4. Qrr - Area under curve defined by t rr
and IRRM
Q
rr
=
t
rr
xI
2
RRM
5. di (rec) M / dt - Peak rate of change of
current during t b portion of t rr
Fig. 8 - Reverse Recovery Waveform and Definitions
5
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