LYTSwitch-4 series High Power LED Driver AC-DC Converters
The Power Integrations LYTSwitch-4 family of off-line AC-DC single-stage converters are designed for high-power LED driver applications. They integrate control and drive circuits and power factor correction in a single package and are available in both dimming and non-dimming versions.
• High line voltage operation: 160-308 Vac • Better than ±5% constant current regulation • Up to 92% efficiency in typical applications • High power factor >0.9 • Easily meets EN61000-3-2 • Less than 10% THD in optimized designs • 132 kHz switching frequency permits use of small low-cost magnetics • No primary side aluminium electrolytic bulk capacitors required LTY432x types only: • TRIAC dimmable to less than 5% of full output • Fast start-up: <250 ms at full brightness, <1s at 10% brightness
