ARF678S45 Просмотр технического описания (PDF) - Power Semiconductors
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ARF678S45 Datasheet PDF : 4 Pages
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ARF678 FAST RECOVERY DIODE
FINAL SPECIFICATION apr 97 - ISSUE : 01
SWITCHING CHARACTERISTICS
FORWARD RECOVERY VOLTAGE
80
70
Tj = 150 °C
60
50
40
Tj = 25 °C
30
VFR
20
10
0
0
200 400 600 800 1000 1200
di/dt [A/µs]
ANSALDO
IF
VF
1600
1400
1200
1000
REVERSE RECOVERY CHARGE
Tj=150°C
1000 A
500 A
250 A
800
600
400
200
0
0
100
200
300
400
di/dt [A/µs]
REVERSE RECOVERY CURRENT
Tj=150°C
800
750
700
650
600
550
500
450
400
350
300
250
200
150
100
50
0
0
1000 A
500 A
250 A
100
200
300
400
di/dt [A/µs]
ta = Irr / (di/dt) tb = trr - ta
IF
Softness (s factor) s = tb / ta
Energy dissipation during recovery Er = Vr · (Qrr - Irr ·ta / 2 )
d i/d t
ta tb
Irr
Vr
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