FREE–WHEEL DIODE CHARACTERISTICS
BUT34
I
Id
1
0
VD DYN
10 (VDYN VFM)
VFM
TFR
di/dt = 25 A/µs
IFM
25 IRM
t
IRM
trr
Figure 10. Free Wheel Diode Measurements
50
–σ
+σ
40
30
20
10
TC = 25°C
0
0
1
2
3
4
5
VEC, EMITTER COLLECTOR VOLTAGE (VOLTS)
Figure 11. Forward Voltage
30
25
20
15
10
5
40°C
TC = 25°C
0
0
10
20
30
40
50
IE, EMITTER CURRENT (AMPS)
Figure 12. Forward Modulation Voltage
50
TC = 25°C
40
30
20
10
0
0
10
20
30
40
50
IE, EMITTER CURREMT (AMPS)
Figure 13. Peak Reverse Recovery Current
2.2
TC = 25°C
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0
10
20
30
40
50
IE, EMITTER CURRENT (AMPS)
Figure 14. Forward Recovery Time
15
10
TC = 25°C
7
5
3
2
0.1
0.7
0.5
0.3
0
10
20
30
40
50
IE, EMITTER CURRENT (AMPS)
Figure 15. Reverse Recovery Time
Motorola Bipolar Power Transistor Device Data
5