Transistors
10
D=1
1
0.5
0.2
0.1 0.1
0.05
0.02
0.01
0.001
100µ
0.01
Single pulse
1m
When mounted on a 40 x 40 x 0.7 mm
aluminum-ceramic board.
Ta=25°C
θth (ch-c) (t) = r (t) • θth (ch-c)
θth (ch-c) =62.5°C/W
10m
100m
PW
T
D=
PW
T
1
10
100
PULSE WIDTH : PW(s)
Fig.16 Normarized Transient Thermal Resistance vs. Pulse Width
!Switching characteristics measurement circuit
Pulse width
VGS
ID
D.U.T.
RG
VDS
RL
VDD
VGS
50%
10%
VDS
10%
td(on) tr
ton
90%
90%
50%
10%
tf
td(off)
toff
90%
Fig.17 Switching Time Test Circuit
Fig.18 Switching Time Waveforms
2SK3065