IRFR320, IRFU320, SiHFR320, SiHFU320
Vishay Siliconix
L
VDS
VDS
Vary tp to obtain
required IAS
tp
VDD
D.U.T
IAS
RG
+
-
VDD
VDS
10 V
0.01 Ω
tp
IAS
Fig. 12b - Unclamped Inductive Waveforms
Fig. 12a - Unclamped Inductive Test Circuit
Fig. 12c - Maximum Avalanche Energy vs. Drain Current
Current regulator
Same type as D.U.T.
50 kΩ
QG
VGS
12 V
0.2 µF
0.3 µF
QGS
QGD
+
-
VDS
D.U.T.
VG
VGS
3 mA
Charge
IG
ID
Current sampling resistors
Fig. 13a - Basic Gate Charge Waveform
Fig. 13b - Gate Charge Test Circuit
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Document Number: 91273
S-81367-Rev. A, 21-Jul-08
VISHAY [ VISHAY ]
