Description
NCP1234 Fixed Frequency Current Mode Controller for Flyback Converters The NCP1234 is a new fixed *frequency current *mode controller .
Pin No Pin Name
Function
1 LATCH
Latch.
Off Input
2 FB 3 CS
Feedback Current Sense
4 GND 5 DRV 6 VCC
Drive output VCC input
8 HV
High.
Features
* a timer
* based fault detection that ensures the detection of
overload independently of an auxiliary winding, and an adjustable compensation to help keep the maximum power independent of the input voltage. Finally, due to a careful design, the precision of critical parameters is well controlle
Applications
* AC
* DC Adapters for Notebooks, LCD, and Printers
* Offline Battery Chargers
* Consumer Electronic Power Supplies
* Auxiliary/Housekeeping Power Supplies
© Semiconductor Components Industries, LLC, 2016
January, 2016
* Rev. 2
1
Publication Order Num