Features

• LYTSwitch-5 series LED Driver AC-DC Converters. The LYTSwitch-5 family of AC-DC Converters from Power Integrations is ideal for single-stage power factor corrected constant current LED applications, equally suited for lamps, tubes or ballasts. These highly integrated devices incorporate a discontinuous mode, variable frequency, variable on-time controller, and a high-voltage power MOSFET in a single compact package and include advanced thermal management and protection circuitry. Efficiency >90% in optimized designs Power Factor >0.9 Constant current regulation accuracy better than ±3% Low THD, ;10% with typical input and output conditions High switching frequency and DCM allow compact magnetics Supports buck, buck-boost, tapped-buck, boost, isolated and non-isolated flyback topologies No electrolytic bulk capacitors or opto-isolators for increased lifetime and reliability Input and output overvoltage protection Open-loop protection Thermal control with fold-back allows output light delivery at high ambient temperatures Hysteretic shutdown provides protection during fault conditions