Quasi-Resonant Controller, Power Factor Corrected, Analog/Digital Dimmable www.onsemi.com NCL30186 The NCL30186 is a controller targeting isolated and nonisolated smartdimmable constantcurrent LED drivers. Designed to support SOIC10 flyback, buckboost, and SEPIC topologies, its proprietary current CASE 751BQ control algorithm provides nearunity power factor and tightly regulates a constant LED current from the primary side, thus eliminating the need MARKING DIAGRAM for a secondaryside feedback circuitry or an optocoupler. Housed in the SOIC10 which has the same body size as a standard SOIC8, the NCL30186 is specifically intended for very compact L30186x ALYW spaceefficient designs. The device is highly integrated with a minimum number of external components. A robust suite of safety protections is built in to simplify the design. To ensure reliable operation at elevated temperatures, a user configurable current L30186x = Specific Device Code foldback circuit is also provided. In addition, it supports analog and x = A, B, C, D PWM dimming with a dedicated dimming input intended to control A = Assembly Location the average LED current. L = Wafer Lot Pintopin compatible to the NCL30086, the NCL30186 provides Y = Year W = Work Week the same benefits with in addition, an increased resolution of the = Pb-Free Package digital currentcontrol algorithm for a 75% reduction in the LED current quantization ripple. PIN CONNECTIONS Features 1 DIM NC Quasiresonant Peak Currentmode Control Operation ZCD V CC Valley Lockout Optimizes Efficiency over the Line/Load Range VS DRV Constant Current Control with Primary Side Feedback COMP GND Tight LED Constant Current Regulation of 2% Typical SD CS Power Factor Correction (Top View) Analog or PWM dimming Line Feedforward for Enhanced Regulation Accuracy ORDERING INFORMATION See detailed ordering and shipping information in the package Low Startup Current (10 A typ.) dimensions section on page 27 of this data sheet. Wide V Range cc User programmable NTC Based Thermal Foldback 300 mA / 500 mA Totem Pole Driver with 12 V Gate Thermal Shutdown Clamp 40 to 125C Operating Junction Temperature Robust Protection Features BrownOut Detection PbFree, HalideFree Product OVP on V CC Four Versions: NCL30186A, B, C and D (See Table 1) Programmable Over Voltage / LED Open Circuit Typical Applications Protection Integral LED Bulbs Cyclebycycle Peak Current Limit Winding Short Circuit Protection LED Light Engines Secondary Diode Short Protection LED Driver Power Supplies Output Short Circuit Protection Smart LED Lighting Applications Current Sense (CS) Short Detection Semiconductor Components Industries, LLC, 2016 1 Publication Order Number: September, 2019 Rev. 3 NCL30186/DNCL30186 . Aux NCL30186 V DIM 1 10 9 2 3 8 4 7 5 6 R sense Figure 1. Typical Application Schematic in a Flyback Converter . Aux . V NCL30186 DIM 1 10 2 9 3 8 4 7 5 6 R sense Figure 2. Typical Application Schematic in a BuckBoost Converter www.onsemi.com 2