NCL30086BH Series

Analog/Digital Dimmable Power Factor Corrected Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting

Catalog

Analog/Digital Dimmable Power Factor Corrected Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting

Part	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Supply (Max) [Max]	Topology	Mounting Type	Supplier Device Package	Type	Internal Switch(s)	Voltage - Supply (Min) [Min]	Dimming	Package / Case [x]	Package / Case [y]	Package / Case	Applications	Number of Outputs
ON Semiconductor NCL30086BHDR2G	-40 °C	125 °C	20 V	Flyback SEPIC Step-Down (Buck) Step-Up (Boost)	Surface Mount	10-SOIC	AC DC Offline Switcher		8.8 V	Analog PWM	0.154 in	3.9 mm	10-SOP	Lighting	1

Catalog

Analog/Digital Dimmable Power Factor Corrected Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting

Key Features

• Constant Current Control with Primary Side Feedback

• Power factor correction with low harmonic distortion

• Precise Current Regulation Accuracy

• Line feedforward for enhanced regulation accuracy

• Wide Vcc operating range

• User Programmable Thermal Foldback

• Open and Shorted LED/Output Diode Protection

• Wide temperature range of -40 to 125 °C

• Dedicated Analog/Digital Dimming control

• VCC Undervoltage and overvoltage protection

Description

The NCL30086BH is a controller targeting isolated andnon−isolated "smart−dimmable" constant−current LED drivers.Designed to support flyback, buck−boost, and SEPIC topologies, itsproprietary current−control algorithm provides near−unity powerfactor and tightly regulates a constant LED current from the primaryside, thus eliminating the need for a secondary−side feedback circuitryor an optocoupler.Housed in the SOIC10 which has the same body size as a standardSOIC8, the NCL30086BH is specifically intended for very compactspace−efficient designs. The device is highly integrated with aminimum number of external components. A robust suite of safetyprotections is built in to simplify the design. To ensure reliableoperation at elevated temperatures, a user configurable currentfoldback circuit is also provided. In addition, it supports analog andPWM dimming with a dedicated dimming input intended to controlthe average LED current.Pin−to−pin compatible to the NCL30086, the NCL30086BHprovides the same benefits with in addition, an increased resolution ofthe digital current−control algorithm for a 75% reduction in the LEDcurrent quantization ripple.