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Power Integrations LYTSwitch-4x1x LED Driver Reference Design Kit

Power Integrations RDK-347 12.6W Dimmable LED Driver Reference Design Kit uses the LYT4313E LED driver IC from the LYTSwitch family of ICs. The RDK-347 is an isolated high power factor (PF) TRIAC dimmable LED driver designed to drive an LED string voltage of 34V at 370mA from an input voltage range of 90VAC to 132VAC. The topology used is a single-stage power factor corrected flyback that delivers high efficiency, high power factor, low THD isolation, low component count, and dimming performance required for this design. High power factor and low THD are achieved by employing the LYTSwitch IC, which provides a sophisticated range of protection features, including auto-restart for open control loop and output short-circuit conditions. Line overvoltage provides extended line fault and surge withstanding, while accurate hysteretic thermal shutdown ensures safe average PCB temperatures under all conditions.

Features

  • High efficiency, ≥86% at 120VAC
  • Single-sided PCB, single-stage converter
  • Works with a wide range of TRIAC dimmers
    • Wide dimming range
    • No pop-on reduced dead band, and high-speed start-up
  • Enhanced user experience
    • Flicker-free, fast monotonic start-up with no perceptible delay
    • Thermal foldback prevents shut off in high output temperatures
  • Integrated protection and reliability features
    • Output open circuit/output short-circuit protected with auto-recovery
    • Line input overvoltage shutdown extends voltage withstand during line faults
    • Auto-recovering thermal shutdown with large hysteresis protects both components and PCB
  • IEC 61000-4-5 ring wave, IEC 61000-3-2 C combination, and EN55015 B conducted EMI compliant
Veröffentlichungsdatum: 2016-07-15 | Aktualisiert: 2022-03-11