Diodes Incorporated

AL1676 Buck LED Driver

High-power factor Buck LED driver meets worldwide retrofit lamp requirements in Diodes' AL1676

Image of Diodes' AL1676 Buck LED DriverDiodes' AL1676 is a universal AC input (85 VAC to 277 VAC), high-power factor (PF), and high efficiency Buck LED driver. It provides accurate constant-current (CC) LED drive with good line and load regulation. Operating in boundary conduction mode (BCM) to reduce EMI and EMC issues, the AL1676 works with a single winding inductor (no auxiliary winding required) non-isolated buck configuration. Coupled with its internal high-voltage MOSFET, the AL1676 significantly reduces bill of material (BOM) cost of traditional non-dimmable lamp solutions. The AL1676 integrates many protection features to enhance system safety and reliability. The AL1676 is available with different power switch options, all in the SO-7 package, to meet different line voltage and lamp power requirements.

Features
  • Competitive BOM cost high PF solutions together with accurate output current and full protection set
    • High-power factor: exceeds Energy Star PF >0.7 with pin >5 W requirements
    • Multiple options of internal MOSFET power switch: covers up to 18 W power for worldwide line voltage requirements
    • High integration level and single winding switching inductor: provides compact size, cost competitive solution
    • Abundant integrated protection features: internal UVLO, OVP, OCP, and OTP and thermal fold-back - increases system’s reliability and robustness
    • Tight output current tolerance of: ±3% maintains output current accuracy during mass production
Applications
  • Non-dimmable retrofit LED lamps
  • LED tubes
  • General purpose constant-current sources
Published: 2016-06-01