27
DUTY CYCLE VS. OUTPUT VOLTAGE
0.00%
1.00%
2.00%
3.00%
4.00%
5.00%
6.00%
7.00%
8.00%
9.00%
10.00%
5
10
20
30
40
50
OUTPUT VOLTAGE
M
A
X
D
U
T
Y
C
Y
C
L
E
Figure 15. Duty Cycle
Figure 14 and Figure 15 show the maximum available pulse width and duty
cycle available from any one channel; channels are independent so these limits
do not depend on other channels. The drivers are current-limited and will not be
damaged if programmed beyond these limits.
TYPICAL RISE AND FALL TIMES
0.00E+00
1.00E-09
2.00E-09
3.00E-09
4.00E-09
5.00E-09
6.00E-09
7.00E-09
5
10
20
30
40
50
Output Voltage
T
im
e
i
n
s
e
c
o
n
d
s
Tr
Tf
Figure 16. Pulse rise and fall times
Figure 16 shows typical rise and fall times at various voltages, again terminated
into a 50 ohm load. At higher duty cycles, transformer circulating current helps