Pre-Irradiation
IRHN7054, JANSR2N7394U
1200
15V
1000
VDS
L
800
DRIVER
RG
2V0VGS
tp
D.U.T
IAS
0.01Ω
600
+
- VDD
A
400
Fig 12a. Unclamped Inductive Test Circuit
200
ID
TOP
16A
22A
BOTTOM 35A
V(BR)DSS
tp
0
25
50
75
100
125
150
Starting TJ , Junction Temperature ( °C)
Fig 12c. Maximum Avalanche Energy
Vs. Drain Current
IAS
Fig 12b. Unclamped Inductive Waveforms
QG
12 V
QGS
QGD
VG
Charge
Fig 13a. Basic Gate Charge Waveform
www.irf.com
Current Regulator
Same Type as D.U.T.
50KΩ
12V
.2µF
.3µF
+
D.U.T. -VDS
VGS
3mA
IG
ID
Current Sampling Resistors
Fig 13b. Gate Charge Test Circuit
7