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SD6920
HIGH PFC, HIGH CONSTANT CURRENT ACCURACY, NON-ISOLATED LED LIGHTING DRIVE IC

    SD6920 is designed for non-isolated LED driving with floating Buck structure. With this structure, inductor current is sensed and closed-loop is formed with the internal error amplifier for high constant current accuracy and high input/output regulation rate. Also, high PF in full voltage range is available as its own PFC control. Boundary Conduction mode is adopted for decreasing switching loss and improving the conversion efficiency.

   SD6920 integrates various protections, such as output open circuit protection, output short circuit protection, cycle-by-cycle current limit protection, and over temperature protection. 

    SD6920 has a built-in VCC regulator, which allows periphery operating without auxiliary winding and makes output voltage range maximized.

The start-up current and operating current are low and highlight LED can be driven with high efficiency in full voltage range (85VAC~265VAC).


Main feature
  • Proprietary constant control method (Patent)

  • Constant current with high accuracy for LED (<±3%)

  • PF>0.9 in full voltage range

  • High conversion efficiency>93% (18W)

  • Boundary-Conduction mode

  • LED short circuit protection (Patent)

  • LED open circuit protection

  • VCC over/under voltage protection

  • Over temperature protection

  • Over current protection


Ordering Information
Product Name Package form Marking Hazardous Substance Control Packing Type Remarks
SD6920TR SOT-23-6L / Halogen free Tape & Reel
Block Diagram

SD6920英文.png

Documents
title Types of Size (KB) date Download the latest English version
SD6920 0 1970-01-01 SD6920 Brief Datasheet