IRF840, SiHF840
Vishay Siliconix
1200
1000
800
ID
3.6 A
5.1 A
Top
Bottom 8.0 A
600
400
200
VDD = 50 V
0
125
Starting T , Junction Temperature (°C)
25
75
100
150
50
91070_12c
J
Fig. 12c - Maximum Avalanche Energy vs. Drain Current
Current regulator
Same type as D.U.T.
50 kΩ
QG
12 V
0.2 µF
0.3 µF
10 V
+
-
QGS
QGD
VDS
D.U.T.
VG
VGS
3 mA
Charge
IG
ID
Current sampling resistors
Fig. 13b - Gate Charge Test Circuit
Fig. 13a - Basic Gate Charge Waveform
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6
Document Number: 91070
S-81290-Rev. B, 16-Jun-08
VISHAY [ VISHAY ]
