![](http://datasheet.mmic.net.cn/390000/HUFA76404DK8T_datasheet_16812070/HUFA76404DK8T_8.png)
HUFA76404DK8T Rev. B
www.fairchildsemi.com
8
H
Test Circuits and Waveforms
Figure 15. Unclamped Energy Test Circuit
Figure 16. Unclamped Energy Waveforms
Figure 17. Gate Charge Test Circuit
Figure 18. Gate Charge Waveforms
Figure 19. Switching Time Test Circuit
Figure 20. Switching Time Waveforms
t
P
V
GS
0.01
L
I
AS
+
-
V
DS
V
DD
R
G
DUT
VARY t
P
TO OBTAIN
REQUIRED PEAK I
AS
0V
V
DD
V
DS
BV
DSS
t
P
I
AS
t
AV
0
V
GS
+
-
V
DS
V
DD
DUT
I
g(REF)
R
L
V
DD
Q
g(TH)
Q
gs
V
GS
= 1V
0
Q
gs2
Q
g(TOT)
V
GS
= 5V
V
DS
V
GS
I
g(REF)
0
Q
gd
V
GS
R
L
R
GS
DUT
+
-
V
DD
V
DS
V
GS
t
ON
t
d(ON)
t
r
90%
10%
V
DS
90%
10%
t
f
t
d(OFF)
t
OFF
90%
50%
50%
10%
PULSE WIDTH
V
GS
0
0