2SK1405
Reverse Drain Current vs.
Source to Drain Voltage
20
16
12
8
Pulse Test
VGS
= 0, –5 V
10 V
4
0
0
0.4
0.8
1.2
1.6
2.0
Source to Drain Voltage VSD (V)
Normalized Transient Thermal Impedance vs. Pulse Width
3
1
Tc = 25°C
D = 1
0.5
0.3
0.1
θch – c (t) = γ s (t) • θch – c
0.05
θch – c = 2.08°C/W, Tc = 25°C
PW
D =
PDM
T
0.03
0.01
PW
T
10 µ
100 µ
1 m
10 m
100 m
1
10
Pulse Width PW (S)
Switching Time Test Circuit
Waveform
90%
Vout
Monitor
Vin Monitor
10%
10%
D.U.T.
Vin
RL
Vout
10%
VDD
= 30 V
Vin
10 V
50 Ω
90%
90%
t
t
t
d(off)
t
f
d(on)
r
Rev.3.00 May 15, 2006 page 5 of 6