LC5547LF Datasheet PDF

Sanken LC5547LF

The LC5540LF series is the power IC for the isolated type factor by average current control) LED driver which has an incorporated power MOSFET, • Integrated startup circuit (no external startup designed for input capacitorless applications, and making it circuit necessary) possible for systems to comply with the harmonics standard • Integrated soft-start circuit (reduces power stress during start-up on the incorporated power MOSFET and s output rectifier) n • Integrated bias assist circuit (improves startup ig performance, suppresses VCC voltage droop during s operation, and allows use of... The controller adapts the average current control method for realizing high power factors, and the quasi-resonant topology contributes to high efficiency and low EMI noise. The series is housed in TO-220 packages.