NCL30188 Datasheet - ON Semiconductor

NCL30188 Power Factor Corrected Quasi-Resonant Primary Side Current-Mode Controller

Pin No. Pin Name Function 1 ZCD Zero Crossing Detection 2 VS Input Voltage Sensing 3 COMP Filtering Capacitor 4 SD Thermal Foldback and Shutdown 5 CS Current Sense 6 GND * 7 DRV Driver Output 8 VCC IC Supply Pin Pin Description Connected to the auxiliary winding, this pin .

NCL30188 Power Factor Corrected Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting with Thermal Foldback www.onsemi.com The NCL30188 is a controller targeting isolated and non isolated “smart dimmable” constant current LED drivers. Designed to 8 support flyback, buck boost, and SEPIC topologies, its proprietary current control algorithm provides near unity power factor and 1 SOIC 8 NB tightly regulates a constant L.

NCL30188 Features

* G = Pb-Free Package

* Quasi

* resonant Peak Current

* mode Control Operation

* Constant Current Control with Primary Side Feedback

* Tight LED Constant Current Regulation of ±2% Typical

* Power Factor Correction

* Line Feedforward for Enhanced R

NCL30188-ONSemiconductor.pdf