2SK2408
Power vs. Temperature Derating
80
Pch (W)
I
D
(A)
50
20
10
5
2
1
0.5
0.2
0.1
0.05
Maximum Safe Operation Area
10
10
µs
0
µs
1
m
s
)
ot
sh
(1
PW
60
D
C
O
Channel Dissipation
Drain Current
pe
ra
tio
=
n
10
40
Operation in
this area is
limited by R
DS(on)
(T
c
s
m
=
25
°C
)
20
Ta = 25 °C
1
3
10
30
100 300 1000
Drain to Source Voltage V
DS
(V)
0
50
100
150
Tc (°C)
200
Case Temperature
Normalized Transient Thermal Impedance vs. Pulse Width
3
Normalized Transient Thermal Impedance
γ
s (t)
Tc = 25°C
1
D=1
0.5
0.3
0.2
0.1
0.1
0.05
θ
ch – c(t) =
γ
s (t) •
θ
ch – c
θ
ch – c = 2.08 °C/W, Tc = 25 °C
PDM
PW
T
0.03
0.02
1
lse
0.0
t pu
ho
1s
D=
PW
T
0.01
10 µ
100 µ
1m
10 m
Pulse Width
100 m
PW (S)
1
10
3