2SK3050
Transistors
10
NORMALIZED TRANSIENT : r
(t)
THERMAL RESISTANCE
1
D=1
0.5
0.2
0.1
0.1
0.05
0.02
Tc=25擄C
胃
th(ch-c)
(t)=r(t) 路
胃
th(ch-c)
胃
th(ch-c)
=6.25擄C/W
0.01
0.01
Single pulse
PW
T
0.001
10碌
D=PW
T
100碌
1m
10m
100m
1
10
PULSE WIDTH : PW
(s)
Fig.15 Normalized transient thermal
resistance vs. pulse width
Switching characteristics measurement circuit
Pulse width
50%
10%
10%
90%
50%
V
GS
I
D
D.U.T.
R
L
V
DS
V
GS
V
DS
R
G
10%
90%
90%
t
d(off)
t
f
t
off
V
DD
t
d(on)
t
on
t
r
Fig.16 Switching time measurement circuit
Fig.17 witching time waveforms
I
G
=2mA
R
G
V
GS
I
D
D.U.T.
R
L
V
DS
V
DD
Fig.18 Gate charge measurement circuit
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