PT4209 Datasheet (PowTech) - Primary Side Offline LED Controller

PT4209, Primary Side Offline LED Controller

The PT4209 is a flicker-free PWM/analog dimmable, primary side constant current controller which can achieve high power factor in a single stage converter, targeted to applications in solid state lighting.

It is designed for the flyback topology, and regulates output current accurately without the s

PT4209 Features

* Constant Current Control Without Secondary Feed back Flicker-free PWM/analog Dimming (10%-100%) Accurate Constant Current Output Quasi-Resonant Mode Operation Ultra-low（10uA）Start Up Current Low Quiescent Current (1mA) VCC