POSEICO
ARF370 FAST RECOVERY DIODE
POSEICO SPA
POwer SEmiconductors Italian COrporation
FINAL SPECIFICATION feb 97 - ISSUE : 04
SWITCHING CHARACTERISTICS
FORWARD RECOVERY VOLTAGE
180
160
140
120
100
80
Tj 150 °C
IF
VFR
60
Tj = 25 °C
40
VF
20
0
0
200
400
600
800
1000
1200
di/dt [A/µs]
REVERSE RECOVERY CURRENT - Tj = 150°
1000 A
REVERSE RECOVERY CHARGE - Tj = 150°
1000 A
800
700
600
500
400
300
200
100
0
1400
1200
1000
800
600
400
200
0
500 A
250 A
500 A
250 A
0
100
200
di/dt [A/µs]
300
tb
400
0
100
200
300
400
di/dt [A/µs]
IF
d i/d t
ta = Irr / (di/dt)
Softness (s factor) s = tb / ta
Energy dissipation during recovery Er = Vr · (Qrr - Irr ·ta / 2 )
tb = trr - ta
ta
25% di Irr
Irr
Vr
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