CED9926/CEU9926
4
VDD
on
t
toff
d(off)
t
r
t
d(on)
RL
t
f
t
VIN
90%
10%
90%
D
OUT
V
OUT
V
VGS
10% INVERTED
RGEN
G
6
90%
50%
50%
S
IN
V
10%
PULSE WIDTH
Figure 12. Switching Waveforms
Figure 11. Switching Test Circuit
10 0
D=0.5
0.2
10-1
0.1
0.05
0.02
DM
P
1
t
10-2
2
t
0.01
1. RįJC (t)=r (t) * RįJC
2. RįJC=See Datasheet
3. TJM-TC = P* RįJC (t)
4. Duty Cycle, D=t1/t2
Single Pulse
10-3
10 2
10-4
10-3
10-2
10-1
10 0
Square Wave Pulse Duration (sec)
Figure 13. Normalized Thermal Transient Impedance Curve
6-86