SN03ACPA

High Power Factor Flyback PWM Controller SN03A Product Specification GENERAL DESCRIPTION SN03A is a high power factor flyback PWM controller special for lighting applications. SN03A features an internal start-up timer for stand-alone applications, an analog multiplier with for power factor correction (PFC), zero current detector (ZCD) to ensure TM operation, a current sensing comparator with built-in leading-edge blanking, and a totem pole output ideally suited for driving a power MOSFET. SN03A offers great protection coverage including system VCC under voltage lockout (UVLO),VCC over voltage protection, Cycle-by-cycle current limiting, and gate drive output clamping for external power MOSFET protection. FEATURES Low Start-up Current and Operating Current Cycle-by-Cycle Current Limiting Internal Leading Edge Blanking Analog multiplier for Power Factor Correction Internal Startup Timer for Stand-alone Applications Trimmed 1.5% Internal Band gap Reference Under Voltage Lockout with Hysteresis VCC over voltage protection Transition Mode (TM) Operation Totem Pole Output with High State Clamping Audio Noise Free 11V to 32V wide range of VCC voltage APPLICATIONS Single Stage High PF Flyback AC/DC SMPS LED Lighting Power TYPICAL APPLICATION ©On-Bright Electronics Confidential -1- Preliminary Datasheet OB_DOC_DS_SN03A00 High Power Factor Flyback PWM Controller SN03A GENERAL INFORMATION Terminal Assignment In SOP8 or DIP8 Package. FB 1 8 VCC CO...