Led Design Guide Page 34 LED Design Guide

LED Lighting Design Guide 2015 Littelfuse LED Lighting Design Guide www.littelfuse.com Conclusions The future is bright for LED lighting technology. As efficiencies increase, thermal management issues are overcome, quality of light output impresses consumers and initial costs continue to decline, the technology will continue to proliferate over the next several years. Double digit growth, both unit shipments and market value are forecasted over the next five years. Littelfuse is committed to supporting all facets of the LED lighting market with innovative solutions that not only meet regulatory standards but also increase equipment safety and reliability. To help protect end users, we work closely with many LED driver IC suppliers, to ensure their evaluation boards and reference designs comply with safety and surge immunity requirements. We also assist LED lighting power supply manufacturers in designing optimal protection schemes for their driver modules. At the OEM level we cooperate with luminaire and lamp manufacturers to ensure their products are optimally designed for robust surge immunity protection. When needed we also provide testing services to confirm that designs pass overcurrent and overvoltage regulatory requirements. We offer a large number of support tools, including low power consumer lighting protection sample kits, outdoor LED lighting kits, white papers, application notes, and part selection guides. When requested, our exceptional application engineering team will supply protection recommendations based on customer-specific designs. References 1. Surge Protective Devices - UL1449, April 19, 2010 2. Littelfuse Datasheet on Thermally Protected Metal Oxide Varistor (TMOV Varistor), March 2001 3. Littelfuse Application Note EC635: Designing with Thermally Protected TMOV Varistors in SPD and AC Line Applications 4. IEEE C.62.41 specifications 5. IEC61000-4-5 specifications 6. Energy Star surge immunity specification 7. DOE MSSSLC LED Roadway Model Spec 8. Temporary Overvoltages Following Transformer Energizing- Daniel W. Durbak, Sept 2006 9. Electronic Systems Protection via Advanced Surge Protective Devices- Alan Chiste and Dalibor Kladar Conclusions and References 34

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