Power Integrations — LED Driver ICs, Optimized for High Line Applications

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The Flyback CV/CC LED driver IC for up to 65W with Integrated 650V/725V MOSFET and FluxLink™ feedback.

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, and an innovative integrated communication link, FluxLink. The new family provides accurate controls of both output current and voltage providing a solution that can drive both LED strings for conventional lighting and post regulators for smart lighting from a single design.


  • Highly integrated, compact footprint
  • Up to 94% efficient across load range
  • Incorporates a multi-mode quasi-resonant (QR)/CCM flyback controller, 650V or 725V MOSFET, secondary-side control and synchronous rectification driver
  • Integrated FluxLink, HIPOT-isolated, feedback link
  • Exceptional CV/CC accuracy, independent of transformer design or external components
  • Accurate output current sensing
  • Less than 250mW standby power consumption in typical smart lighting applications – allowing designs that easily meet ENERGY STAR and DOE-6 limits


  • Isolated off-line LED drivers
  • Smart LED lighting
  • High-voltage flyback post regulator
  • Lighting ballasts


Product Specification Output Power (Watts)

Part Number277VAC ±15%
Open Frame
85VAC to 305VAC
Open Frame
Open Frame