DN05084/D, Dimmable 120 Vac, 6.5 W Input Parallel-to-Series Lighting Design Circuit

DN05084/D, Design Circuit is an enhanced parallel-to-series LED lighting circuit. It uses updated control circuitry that allows the ability to accommodate multiple LED voltages by simply adjusting a single resistor (R3) as well as compensating for drift in LED voltage with temperature. It also has superb PF, THD performance, dimmability, and efficiency at a low cost. The circuit is designed for input voltages between 100 VAC and 140 VAC . CCRs are used to provide constant LED current and to protect LEDs from over-voltage conditions. The circuit employs an additional CCR (shown as CCR2) to increase LED current at high voltages for improved PF and THD performance