SN03A Datasheet | On-Bright

DESCRIPTION FEATURES - Low Start-up Current and Operating Current SN03A is a high power factor flyback PWM - Cycle-by-Cycle Current Limiting 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 parator with built-in leading-edge blanking, and a totem pole output ideally suited for driving a power MOSFET. - - - - - - - - Internal Leading Edge Blanking Analog multiplier for Power Factor Correction Internal Startup Timer for Stand-alone n Applications o Trimmed 1.5% Internal Band gap Reference c Under Voltage Lockout with Hysteresis VCC over voltage protection y Transition Mode (TM) Operation L Totem Pole Output with High State Clamping 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 - Audio Noise Free APPLICATIONS to external power MOSFET protection. confidential TYPICAL APPLICATION - Single Stage High PF Flyback AC/DC SMPS - LED Lighting Power Bright On ©On-Bright Electronics Confidential -1- Preliminary Datasheet OB_DOC_DS_SN03A01 High Power Factor Flyback PWM Controller GENERAL INFORMATION Absolute Maximum Ratings Terminal Assignment In SOP8 or DIP8 Package. Symbol VCC Parameter Value DC Supply voltage Vz P 2 MULT I_ZCD CS FB P MULT Tj Tstg Zero Current Detector Max. Current 50m A(source) -10m A(sink) on Analog...