2SK2345
Power vs. Temperature Derating
40
Pch (W)
I
D
(A)
50
20
10
5
2
1
0.5
0.2
0.1
0.05
Maximum Safe Operation Area
10
0
µs
10
D
C
µs
30
PW
O
pe
ra
t
=
1
10
m
s
m
Channel Dissipation
20
Drain Current
s
ho
)
Operation in
this area is
limited by R
DS(on)
io
n
(T
c
(1
s
=
25
t)
10
°C
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
0.02
e
1
uls
0.0
p
ot
sh
1
θ
ch – c(t) =
γ
s (t) •
θ
ch – c
θ
ch – c = 3.57 °C/W, Tc = 25 °C
PDM
PW
T
0.03
D=
PW
T
0.01
10 µ
100 µ
1m
10 m
Pulse Width
100 m
PW (S)
1
10
3
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