FTM Board Club
ON Semiconductor
PFC Quasi-Resonant Primary Side Current Mode LED Lighting Controller

Evaluation board for the NCL30088 power factor corrected flyback controller targeting isolated and non-isolated buck-boost/SEPIC constant current LED drivers.

The controller operates in a quasi-resonant mode to provide optimal efficiency. Thanks to a novel control method, the device is able to tightly regulate a constant LED current from the primary side. This removes the need for secondary side feedback circuitry, biasing and an optocoupler. The device is highly integrated with a minimum number of external components. A robust suite of safety protection is built in to simplify the design. This device is specifically intended for very compact, space efficient designs.


• Wide Mains
• Low THD across Line and Load
• High Power Factor across Wide Line and Load
• Integrated Auto Recovery Fault Protection (can be
latched by Choice of Options)

♦ Over Temperature on Board (a PCB mounted NTC)
♦ Over Current
♦ Output and Vcc Over Voltage