HFD1N65 / HFU1N65
Fig 12. Gate Charge Test Circuit & Waveform
50KΩ
12V
200nF
300nF
Same Type
as DUT
V
DS
V
GS
Q
g
10V
V
GS
Q
gs
Q
gd
DUT
3mA
Charge
Fig 13. Resistive Switching Test Circuit & Waveforms
V
DS
R
G
R
L
V
DD
( 0.5 rated V
DS
)
V
DS
90%
10V
DUT
V
in
10%
t
d(on)
t
on
t
r
t
d(off)
t
off
t
f
Fig 14. Unclamped Inductive Switching Test Circuit & Waveforms
L
V
DS
V
DD
I
D
R
G
DUT
V
DD
BV
DSS
I
AS
BV
DSS
1
E
AS
= ---- L
L
I
AS2
--------------------
2
BV
DSS
-- V
DD
I
D
(t)
V
DS
(t)
t
p
10V
Time
◎
SEMIHOW REV.A0,Apr 2006