HUFA76429D3
Test Circuits and Waveforms
V
DS
BV
DSS
L
t
P
V
DS
I
VARY t TO OBTAIN
P
AS
+
V
DD
R
REQUIRED PEAK I
AS
G
V
DD
-
V
GS
DUT
t
P
I
AS
0V
0
0.01Ω
t
AV
FIGURE 17. UNCLAMPED ENERGY TEST CIRCUIT
FIGURE 18. UNCLAMPED ENERGY WAVEFORMS
V
DS
V
Q
DD
R
g(TOT)
L
V
DS
V
= 10V
GS
V
Q
GS
g(5)
+
-
V
DD
V
= 5V
V
GS
GS
DUT
V
= 1V
GS
I
0
g(REF)
Q
g(TH)
Q
Q
gd
gs
I
g(REF)
0
FIGURE 19. GATE CHARGE TEST CIRCUIT
FIGURE 20. GATE CHARGE WAVEFORMS
V
t
t
DS
ON
OFF
t
d(OFF)
t
d(ON)
t
t
f
R
L
r
V
DS
90%
90%
+
V
GS
V
DD
10%
10%
0
-
DUT
90%
50%
R
GS
V
GS
50%
PULSE WIDTH
10%
V
GS
0
FIGURE 21. SWITCHING TIME TEST CIRCUIT
FIGURE 22. SWITCHING TIME WAVEFORM
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HUFA76429D3 Rev. C1