SiFirst

SFL636

LED Driver

  • Meet EPS Level 6
  • Built-in 650V Power MOSFET
  • Proprietary super-QR/PSRTM (Quasi-Resonant & Primary Side Regulation) Control for High Efficiency and Low EMI
  • Proprietary Cable Drop Compensation
  • Max. Frequency Clamping to Limit Power MOSFET Vds Spike @ Output Short Circuit
  • Less than 70mW Standby Power
  • ±5% CC and CV Precision
  • Multi-Mode Control
  • Cycle-by-Cycle Current Limiting
  • Soft Start
  • Output Over Voltage Protection
  • 运用

  • Battery chargers for cellular phones, cordless phones, PDA, digital cameras, etc
  • Replaces linear transformer and RCC SMPS
  • AC/DC LED lighting
      • SFL636 is a high performance, highly integrated QR (Quasi Resonant Mode) and Primary Side Regulation (PSR) power switch for offline small power converter applications.  
        SFL636 has proprietary super-QR/PSRTM control for high efficiency and low EMI, which can ensure system to meet EPS Level 6 energy standard. The IC also has built-in cable drop compensation function to achieve excellent CV performance.  
        SFL636 uses Multi Mode Control to improve efficiency and reliability and to decrease audio noise energy @ light loadings. SFL636 also integrates the function of "Max. Frequency Clamping @ Output Short Circuit" to limits power MOSFET Vds spike when output short circuits occurs. 
        SFL636 integrates functions and protections of FB Short Protection, Under Voltage Lockout (UVLO), VDD Over Voltage Protection (VDD OVP), Output Over Voltage Protection (Output OVP), Soft Start, Cycle-by-cycle Current Limiting (OCP), Pin Floating Protection, VDD Clamping.  
        SFL636 is available in SOP7 package.