NCL30186 Series

LED Driver, AC-DC Power Factor Corrected Quasi-Resonant Primary Side Current Mode Controller for LED Lighting with Smart Analog/Dimming Capability

Manufacturer: ON Semiconductor

Catalog

LED Driver, AC-DC Power Factor Corrected Quasi-Resonant Primary Side Current Mode Controller for LED Lighting with Smart Analog/Dimming Capability

Part	Topology	Voltage - Supply (Min) [Min]	Applications	Dimming	Number of Outputs	Supplier Device Package	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Supply (Max) [Max]	Type	Mounting Type	Internal Switch(s)	Package / Case [x]	Package / Case [y]	Package / Case
ON Semiconductor NCL30186ADR2G	Flyback SEPIC Step-Down (Buck) Step-Up (Boost)	8.8 V	Lighting	Analog PWM	1	10-SOIC	-40 °C	125 ¯C	25.5 V	AC DC Offline Switcher	Surface Mount		0.154 in	3.9 mm	10-SOP

Catalog

LED Driver, AC-DC Power Factor Corrected Quasi-Resonant Primary Side Current Mode Controller for LED Lighting with Smart Analog/Dimming Capability

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 NCL30186 is an AC-DC power factor corrected flyback controller targeting isolated and non−isolated "Smart−dimmable" constant current LED drivers. The controller operates in a quasi−resonant mode to provide optimal efficiency. The current control algorithm supports flyback, buck−boost, and SEPIC topologies. Thanks to a novel control method, the device is able to tightly regulate a constant LED currentfrom 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 and supports analog and PWM dimming with a dedicated dimming input intended to control the average LED current. To ensure reliable operation at elevated temperatures, a user configurable current foldback circuit is also provided. The NCL30086 is housed inthe SOIC10 which has the same body size as a standard SOIC8.