SiFirst

SF6072

PSR

  • Direct drive of Low Cost BJT
  • All pins floating protection
  • Proprietary "Zero-Output Statup "Control
  • Proprietary "Smart Output Short Protection"
  • Built-in soft start
  • FB Short Protection and ±5% CC and CV Precision
  • Cycle-by-cycle current limiting
  • Wide VDD Operating Range (7V to 24V)
  • Compensate for Line voltage variation
  • Proprietary NC-Cap/PSRTM control
  • Multi Mode Control
  • Less than 70mW Standby power
  • Built-in leading edge blanking (LEB)
  • Proprietary cable voltage drop compensation in CV mode
  • 运用

  • Battery chargers for cellular phones, cordless phones ,PA D, digital cameras ,etc
  • Replaces linear transformer and RCC SMPS
  • Small power adapter
  • AC/DC LED lighting
      • SF6072 is a high performance, highly integrated DCM(Discontinuous Conduction Mode)Primary Side Regulation (PSR)controller for Offline LED lighting applications. It has built-in power BJT, which can further lower system cost. 
        SF6072 has built-in proprietary NC-Cap/PSRTM control for CV control, which eliminates external compensation or filtering capacitor, It has built-in cable drop compensation function, which can provide excellent CV performance. SF6072 uses Multi Mode Control to improve efficiency and reliability and to decrease audio noise energy @ light loadings. The IC can achieve less than 70mW standby power.  
        SF6072 integrates proprietary "Zero-Output startup" control to achieve startp when output is near zero voltage. The IC also has proprietary "Smart Output Short protection", which can limit maximum power when output is short circuit.  
        SF6072 integrates functions and protections of FB Short protection, Under Voltage Lockout (UVLO), VDD over Voltage Protection (VDD OVP), Soft start, Cycle-by-cycle Current Limiting (OCP), Pins Floating Protection, VDD Clamping. 
        SF6072 is available in SOIC-7 packages.