Semtronics Micro Systems

External MOSFET

SM6350 is a primary-side Fly-back control IC with active power factor correction function for LED lighting application.

The IC achieves high power factor and low THD operation by BCM mode. The line and load regulation of LED current is about ±3% because of this particular control method. SM6350 also provides gate driving voltage clamping, VCC over-voltage protection and system output open/short circuit protection to increase IC performance.

Key Features

  • Primary-side feedback control without the opto-coupler
  • Universal Input Voltage Range from 90VAC to 264VAC
  • Transition-mode PFC operating
  • Built-in Active Power Factor CorrectionTechnique
  • Constant Output Current Control LED driver
  • Good Line and Load Regulation
  • Open-LED Protection on DMG pin
  • Over-Voltage Protection on VCC pin
  • Cycle by Cycle Over current Protection on CS pin
  • Over-Temperature Protection
  • Gate Driving Voltage Clamping
  • SOT26 Package Available


  • LED lighting
  • Down light
  • Tubelight
  • Street Light

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