1.方案名稱：UR4301

2.方案品牌：上海晶豐明源

3.方案規(guī)格：SOP8

4.方案簡介：

Overview:UR4301 is a high performance Boundary Current Mode non-isolated Active PowerFactor Correction (APFC) controller optimized for AC/DC LED lighting. It wasdesigned for a unique patented buck topology. With our unique FlickerFreetechnology, UR4301 provides significant cost saving when approaching High PF andnon-flickering applications. By these patented technology, the circuit operated byUR4301 has lower external component count and greater conversion efficiency thancurrent products in market place.The integrated features makes UR4301 an ideal solution for a wide range ofnon-dimmable, residential and commercial SSL down-light, PAR, tube lamp, and flatpanel ceiling lamp applications with PF correction and low THD.Features:1. Universal input: 85V~265V2. PF>90%, THD<20%3. Ultra high conversion efficiency up to 90%4. Flickering Free, Zero output current ripple5. Tight mass production current tolerance at ±3% in mass production6. Low startup current7. Pending patent comp startup control method makes a quick startup8. Excellent line/load regulation9. CSB current limit protection, inductor short protection10. CSB open protection11. Open/Short circuit protection12. Output over voltage protection13. Over temperature protection14. Output over power protection

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