NCL30086 Analog/Digital Dimmable Power Factor Corrected Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting
The NCL30086 is a 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 current from 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 in the SOIC10 which has the same body size as a standard SOIC8.
Features www.onsemi.com SOIC-10 CASE 751BQ MARKING DIAGRAM L30086x ALYW G L30086x = Specific Device Code x = A, B, C, D A = Assembly Location L = Wafer Lot Y = Year W = Work Week G = Pb-Free Package Quasi-resonant Peak Current-mode Control Operation PIN CONNECTIONS Constant Current Control with Primary Side Feedback 1 DIM NC Tight LED Constant Current Regulation of ±2% Typical ZCD VCC Power Factor Correction DRV VS Analog or PWM dimming COMP GND Line Feedforward for Enhanced Regulation Accuracy SD CS Low Start-up Current (10 mA typ.) (Top View) Wide Vcc Range 300 mA / 500 mA Totem Pole Driver with 12 V Gate Clamp ORDERING INFORMATION Robust Protection Features See detailed ordering and shipping information in the package dimensions section on page 27 of this data sheet. Brown-Out Detection OVP on VCC Programmable Over Voltage / LED Open Circuit -40 to 125°C Operating Junction Temperature Protection Pb-Free, Halide-Free Product Cycle-by-cycle Peak Current Limit Four Versions: NCL30086A, B, C and D (See Table 1) Winding Short Circuit Protection Secondary Diode Short Protection Typical Applications Output Short Circuit Protection Integral LED Bulbs Current Sense (CS) Short Detection LED Light Engines User programmable NTC Based Thermal Foldback LED Driver Power Supplies Thermal Shutdown Smart LED Lighting Applications © Semiconductor Components Industries, LLC, 2015 1 February, 2015 - Rev. 2 Publi …
