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V
CC
Drv
100ms
Bunch length given by timer
When V
drops faster than the timer, it prematurely interrupts the pulses flow.
CC
The 100 ms delay could be shortened or lengthened by changing the Pin 6 capacitor.
V
CC
Drv
100ms
The burst period is ensured by the V
The 100 ms delay could be shortened or lengthened by changing the Pin 6 capacitor.
NCP1239
C
= 390 nF
pin6
Bunch length given by VccOFF
Figure 41.
C
=390 nF
pin6
t3
t1
t2
Latch−off phase level
Logic reset level
capacitor charge/discharge cycle
CC
Figure 42.
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23
V
CCON
V
CCOFF
< 100ms
V
CCON
V
CCOFF
t'1
t'2
100ms
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