ncp1230a ON Semiconductor, ncp1230a Datasheet - Page 18

• Manufacturer Part Number: ncp1230a
• Description: Low?standby Power Soft Skip Mode Controller
• Manufacturer: ON Semiconductor

Figure 41. Soft−Start is Activated during a Startup
Sequence, an OCP Condition, or in Skip Mode
Current
Sense
0 V (Fresh PON)
V
CC
6 V (OCP)
2
or
FB
20k
Vdd
2.5 ms
10 V
Max I
12.6 V
55k
25k
P
Skip
Comparators
http://onsemi.com
+
−
Figure 40.
Soft−Start
Ramp (1.0 V max)
18
Error
2.5 msec
SS Timer
Vdd
Skip Comparator
CS
OSC
−
+
PWM