Power Integrations, Inc. LED Drivers LYT3316D

The LYT3316D is part of the LYTSwitch-3 family of LED driver ICs designed for single-stage power factor corrected constant current applications. It supports various topologies including buck, buck-boost, and isolated flyback, with a maximum output power of 12.6 W. The device features a power factor greater than 0.9 and maintains less than ±3% constant current regulation over line and load variations. It includes advanced TRIAC dimmer detection for compatibility with both leading-edge and trailing-edge dimmers, ensuring efficient operation even in the absence of a dimmer. The LYT3316D incorporates comprehensive protection features such as input and output overvoltage protection, output short-circuit protection, and advanced thermal management, including thermal foldback to maintain light output at elevated temperatures. The absence of electrolytic bulk capacitors and optoisolators contributes to increased reliability and longevity. This IC is suitable for applications requiring efficient dimming and high reliability in LED lighting solutions.