CS1612A-FSZ

CS1610A/11A CS1612A/13A TRIAC Dimmable LED Driver IC Features & Description Overview • Best-in-class Dimmer Compatibility - Leading-edge (TRIAC) Dimmers - Trailing-edge Dimmers - Center-cut Dimmers - Digital Dimmers (with Integrated Power Supply) • Up to 90% Efficiency • Optimized for 25W Input Power • Flicker-free Dimming • 0% Minimum Dimming Level • Quasi-resonant Second Stage with Constant-current Output - Flyback and Buck • Fast Startup • Tight LED Current Regulation: Better than ±5% • Primary-side Regulation (PSR) • >0.9 Power Factor • IEC-61000-3-2 Compliant • NEMA SSL6 Compatible • Soft Start • Protections: - Output Open/Short - Current-sense Resistor Open/Short - External Overtemperature Using NTC The CS1610A/1A/12A/13A is a digital control IC engineered to deliver a high-efficiency, cost-effective, flicker-free, phasedimmable, solid-state lighting (SSL) solution for the incandescent lamp-replacement market. The CS1610A/11A is designed to control a quasi-resonant flyback topology. The CS1612A/13A is designed to control a buck topology. The CS1610A/12A and CS1611A/13A are designed for 120VAC and 230VAC line voltage applications, respectively. L1 The CS1610A/11A/12A/13A integrates a critical conduction mode (CRM) boost converter that provides power factor correction and dimmer compatibility with a constant output current, quasi-resonant second stage. An adaptive dimmer compatibility algorithm controls the boost stage and dimmer compatibility operation mode to enable flicker-free operation to