ncp1234ad100r2g ON Semiconductor, ncp1234ad100r2g Datasheet - Page 30

• Manufacturer Part Number: ncp1234ad100r2g
• Description: Ncp1234 Fixed Frequency Current Mode Controller For Flyback Converters
• Manufacturer: ON Semiconductor

Controller Operation (Latched Version: A Option)
Latch
• TSD
• VCC reset
Stopped
Figure 49. Controller Operation State Diagram (Latched Protection)
• V
• High Latch
• Low Latch
CC
> V
CC(ovp)
With Fault=
• V
• TSD
CC
http://onsemi.com
V
< V
CC
> V
CC(off )
• t
• V
30
CC(on)
fault
CS
Skip out
Skip
expires
> V
CS(stop)
• V
• High Latch
• Low Latch
CC
> V
• V
• TSD
• High Latch
Skip in
• V
CC(ovp)
CC
CC
Running
< V
> V
CC(off )
Soft− start
CC(ovp)
• V
• TSD
• Fault
CC
< V
CC(off )
Soft−start ends