S DP /B55N02
VDD
on
t
toff
d(off)
t
r
t
d(on)
t
R L
f
t
V IN
90%
10%
90%
D
OUT
V
OUT
V
V
VG S
10%
INVE R TE D
R G E N
G
90%
50%
50%
S
IN
10%
P ULS E WIDTH
Figure 12. S witching Waveforms
Figure 11. S witching Test C ircuit
2
1
D=0.5
0.2
0.1
DM
P
0.1
0.05
1
t
2
t
0.02
0.01
1. R θ J C (t)=r (t) * R θ J C
2. R θ J C =S ee Datasheet
3. TJ M-TC = P * R θ J C (t)
4. Duty C ycle, D=t1/t2
S ingle P ulse
0.01
0.01
0.1
1
10
100
1000
10000
S quare Wave P ulse Duration (msec)
Figure 13. Normalized Thermal Transient Impedance C urve
5