NCP1234 ONSEMI [ON Semiconductor], NCP1234 Datasheet - Page 25

• Manufacturer Part Number: NCP1234
• Description: Fixed Frequency Current Mode Controller for Flyback Converters
• Manufacturer: ONSEMI [ON Semiconductor]

V
Max Load
Output Load
CC
In the latched version, the controller can restart only if a
Fault Flag
Fault timer
V
V
reset occurs, which in a real application can only
CC(min)
CC(on)
t
fault
DRV
V
CC
Overcurrent
applied
starts
Fault
timer
Figure 42. Latched Timer−Based Overcurrent Protection
http://onsemi.com
t
fault
25
happen if the power supply is unplugged from the mains
line.
latches off
Controller
disappears
when fault
No restart
time
time
time
time
time