NCL30080

NCL30080 Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting The NCL30080 is a PWM current mode controller targeting isolated flyback and non−isolated constant current topologies. The controller operates in a quasi−resonant mode to provide high efficiency. Thanks to a novel control method, the device is able to precisely regulate a constant LED current from the primary side. This removes the need for secondary side feedback circuitry, biasing and an optocoupler. The device is highly integrated with a minimum number of external components. A wide VCC range simplifies the design process and allows a single design to support a wide LED forward voltage range. A robust suite of safety protection is built in to simplify the design. This device is specifically intended for very compact space efficient designs. www.onsemi.com 1 TSOP−6 SN SUFFIX CASE 318G MARKING DIAGRAM Features Quasi−resonant Peak Current−mode Control Operation Primary Side Sensing (no optocoupler needed) Wide VCC Range Precise LED Constant Current Regulation ±1% Typical Line Feed−forward for Enhanced Regulation Accuracy AAxAYWG G 1 AAx = Specific Device Code x = E or Z A = Assembly Location Low LED Current Ripple 250 mV ±2% Guaranteed Voltage Reference for Current Regulation ~ 0.9 Power Factor with Valley Fill Input Stage Low LED Current Ripple Y = Year W = Work Week G = Pb−Free Package (Note: Microdot may be in either location) Source 300 mA / Sink 500 mA Totem Pole Dr...