ARF744S25 查看數據表（PDF） - Power Semiconductors
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ARF744S25 Datasheet PDF : 4 Pages
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ARF774 FAST RECOVERY DIODE
FINAL SPECIFICATION apr 97 - ISSUE : 01
SWITCHING CHARACTERISTICS
FORWARD RECOVERY VOLTAGE
60
50
Tj = 125 °C
40
30
Tj = 25 °C
20
VFR
10
0
0
200 400 600 800 1000 1200
di/dt [A/µs]
ANSALDO
IF
VF
3000
REVERSE RECOVERY CHARGE
Tj = 125 °C
2500
2000
1000 A
500 A
1500
250 A
1000
500
0
0
100
200
300
400
di/dt [A/µs]
1200
1100
1000
900
800
700
600
500
400
300
200
100
0
0
REVERSE RECOVERY CURRENT
Tj = 125 °C
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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