POWER INTEGRATIONS LYT6073C-TL

The LYTSwitch-6 series family of ICs dramatically simplifies the development and manufacturing of off-line LED drivers, particularly those in compact enclosures or with high efficiency requirements. The LYTSwitch-6 architecture is revolutionary in that the devices incorporate both primary and secondary controllers, with sense elements and a safety-rated feedback mechanism into a single IC. Close component proximity and innovative use of the integrated communication link, FluxLink, permit accurate control of a secondaryside synchronous rectification MOSFET with Quasi-Resonant switching of primary integrated high-voltage switch to maintain high efficiency across the entire load range.

• Up to 94% efficiency across full load range
• Incorporates a multi-mode Quasi-Resonant (QR) / CCM / DCM flyback controller, high-voltage switch, secondary-side control and synchronous rectification driver
• Integrated FluxLink, HIPOT-isolated, feedback link
• Exceptional CV/CC accuracy, independent of transformer design or external components
• Adjustable accurate output current sense using external sense resistor
• PowiGaN technology – up to 100 W without heat sinks (LYT6079C and LYT6070C)
• Less than 30 mW no-load including line sense (without PF front end)
• Designs using LYTSwitch-6 easily meet Energy Star and all global lighting energy efficiency regulations
• Low heat dissipation
• Input line OV with auto-restart
• Output fault OVP/UVP with auto-restart
• Open SR FET gate detection
• Input voltage monitor with accurate brown-in
• Thermal foldback ensures that power continues to be delivered (lower level) at elevated temperatures
• Reinforced insulation
• Isolation voltage >4000 VAC
• 100% production HIPOT compliance testing
• UL1577 and TUV (EN60950 and EN62368) safety approved
• Halogen free and RoHS compliant

• Isolated off-line LED driver
• Smart LED lighting
• High-voltage flyback post regulator