Fairchild Semiconductor has developed the FL7701 intelligent non-isolated buck LED driver with power factor correction. The device uses a digital technique that automatically detects the AC input voltage condition to generate a special internal reference signal for high PF correction. The FL7701 also operates from a DC input voltage and automatically detects AC or DC input voltage modes. In MR lighting applications, the traditional technology of using transformers will cause additional losses due to the conversion efficiency of the transformer. Now, the FL7701, which is directly connected to the DC or AC offline input, can replace this traditional inefficient method. Â 3G Antenna,3G outdoor antenna,3G indoor antenna Yetnorson Antenna Co., Ltd. , https://www.yetnorson.com
The FL7701 LED driver combines small form factor and high functional density, allowing designers to save up to 20% on overall bill of materials costs and up to 60% board space. These comprehensive features provide solutions for PCB space-constrained LED lighting applications and support analog dimming.
The FL7701's highly integrated design provides the high reliability required to extend the life of the lighting to more than five years compared to the current three-year solution. Since the input, output or Vdd power supply of the FL7701 does not require electrolytic capacitors, reliability is further improved.
Digital power factor implementation and lower total harmonic distortion, as well as 90% electrical efficiency, bring more energy savings to the end system.
Available in SOP-8 package, the FL7701 is ideal for interior decorative lighting; downlights, reflectors, MR lamps or mainstream E26/E27 or dual-pin sockets in LED or PAR lamps, and for low-power lighting LED lights for equipment. 