描述 Description

SNO3A is a high power factor flyback PWM controller special for lighting applications.\r
SNO3A 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.\r
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.

特性 Features

? Low Start-up Current and Operating Current \r
? Cycle-by-Cycle Current Limiting \r
? Internal Leading Edge Blanking \r
? Analog multiplier for Power Factor Correction \r
? Iinternal Startup Timer for Stand-alone Applications \r
? Trimmed 1.5% Internal Band gap Reference \r
? Under Voltage Lockout with Hysteresis \r
? VCC over voltage protection \r
? Transition Mode(TM) Operation \r
? Totem Pole Output with-High State Clamping \r
? Audio Noise Free \r
? 11V to 32V wide range of VCC voltage

應(yīng)用 Application

? Single Stage High PF Flyback AC/DC SMPS\r
? LED Lighting Power