Thermal impedance FAST DIODE MODULE
FINAL SPECIFICATION apr 17 - ISSUE : 2
SWITCHING CHARACTERISTICS
FORWARD RECOVERY VOLTAGE
90
80
70
60
50
40
30
20
10
0
Tj =150°C
IF
VFR
VF
0
200
400
600
800 1000 1200
di/dt [A/µs]
REVERSE RECOVERY CHARGE
REVERSE RECOVERY CURRENT
Tj = 150 °C
Tj = 150 °C
900
800
700
600
500
400
300
200
100
0
2000
1600
1200
800
400
0
1000 A
1000 A
500 A
500 A
0
100
200
300
400
0
100
200
300
400
di/dt [A/µs]
di/dt [A/µs]
IF
d i/d t
ta = Irr / (di/dt)
tb = trr - ta
Softness (s factor) s = tb / ta
Energy dissipation during recovery Er = Vr · (Qrr - Irr ·ta / 2
)
Irr
Vr
POSEICO [ POWER SEMICONDUCTORS ]
