Power Integrations light bulb for the introduction of ultra compact LED driver

Has the advantage of small size, high efficiency, low THD and high power factor China Guangzhou new LinkSwitchTM-PL Design -- (Business Wire) -- LED CHINA China Guangzhou 2011 exhibition, March 1, 2011 - offline LED lighting high-voltage driver leader Power Integrations company (NASDAQ Code: POWI) today announced a new application for candle bulb reference design (RD-268). The design is based on PI's recently launched LinkSwitch-PL series LED driver IC device LNK454DG, which has the characteristics of silicon controlled dimming, low total harmonic distortion (THD) and high power factor (PF). The reference design can meet the standard candle bulb extremely compact size. Constant current output RD-268 can provide 366 mA, LED rated 3 V, 1.1 of the total power W. The light output of LED light bulb is about 100 lumens, equivalent to 15 W incandescent lights candles in a traditional. The reference design can work in 85 to 300 VAC input voltage, so that the manufacturers to produce light bulbs can be applied to various areas, enhance the reliability and prolong the online application of voltage sags and swells under the condition of life. It is important that high power factor (greater than 0.9) and low THD (115 VAC less than 15%; EN61000-3-2 Class meet D standard) can make the single design and application in the world and the total power over regional power quality requirements of 5W lamp structure and 25W threshold. Power Integrations product marketing manager David New said: "RD-268 shows the new LED driver IC our ability to provide superior performance and end user experience. It is a low cost, low component count solution that can be loaded into a very compact candle bulb and smoothly through the required power factor and EMI testing. LinkSwitch-PL series IC launched last year can be designed constant current driver of small size, low cost, solid state lighting special silicon controlled light. Direct detection of LinkSwitch-PL devices for LED current, over a wide input voltage range, and provides an output power up to 16 W. The innovation of the control algorithm can be achieved with a minimum of external components without flicker SCR dimming. Each device in a monolithic IC integrated on a 725 V power MOSFET, single stage power factor correction circuit, discontinuous mode variable frequency / an innovative variable turn-on time controller, frequency jitter, cycle by cycle current limiting and thermal shutdown circuit with hysteresis.