NCL30488 Datasheet (ON Semiconductor)

NCL30488, LED Driver

NCL30488 Pin N5 Pin Name Function Pin Description 1 COMP OTA output for CV loop This pin receives a compensation network (capacitors and resistors) to stabilize the CV loop 2 ZCD Zero crossing Detection This pin connects to the auxiliary winding and is used to detect the core reset event.

Power Factor Corrected LED Driver with Primary Side CC/CV NCL30488 The NCL30488 is a power factor corrected flyback controller targeting isolated constant current LED drivers.

The controller operates in a quasi resonant mode to provide high 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, its biasing and for an optocoupler.

The device is highly in

NCL30488 Features

* High Voltage Startup

* Quasi

* resonant Peak Current

* mode Control Operation

* Primary Side Feedback

* CC / CV Accurate Control Vin up to 320 V rms

* Tight LED Constant Current Regulation of ±2% Typical

* Digital Power Factor Correction