ncp1234ad100r2g ON Semiconductor, ncp1234ad100r2g Datasheet - Page 31

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

Controller Operation (Autorecovery Version: B Option)
Latch
• t
• TSD
autorec
• VCC reset
Figure 50. Controller Operation State Diagram (Autorecovery Protection)
counting
Stopped
• High Latch
• Low Latch
• V
CC
> V
CC(ovp)
With Fault=
• V
• TSD
CC
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V
< V
CC
> V
CC(off)
• t
• V
31
CC(on)
fault
CS
Skip out
Skip
expires
> V
CS(stop)
• V
• High Latch
• Low Latch
CC
> V
• V
• TSD
• High Latch
• V
Skip in
CC(ovp)
CC
CC
Running
> V
< V
CC(ovp)
Soft− start
CC(off)
• V
• Fault
• TSD
CC
< V
CC(off)
Soft−start ends