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CXA2530-0000-000N00T435H 데이터시트(PDF) 6 Page - Cree, Inc |
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CXA2530-0000-000N00T435H 데이터시트(HTML) 6 Page - Cree, Inc |
6 / 15 page 6 XLAMP CXA2530/CXA2540 RETAIL TRACK LIGHT REFERENCE DESIGN Copyright © 2013 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree®, the Cree logo and XLamp® are registered trademarks and EasyWhite™ is a trademark of Cree, Inc. For product specifications, please see the data sheets available at www.cree.com. For warranty information, please contact Cree Sales at sales@cree.com. 3. ESTImATE EffIcIENcIES Of ThE OpTIcAL, ThERmAL & ELEcTRIcAL SYSTEmS we used Cree’s Product Characterization Tool (PCT) tool to determine the drive current for the design.5 Figure 1 shows basic electrical data and optical output from the PCT. We estimated 90% optical efficiency, 85% driver efficiency and a solder point temperature (T SP) of 70 °C. figure 1: pcT output with cXA2530 flux data The PCT output shows that, at 1 A, a single XLamp CXA2530 LED produces the desired lumen output and efficacy. Thermal Requirements Proper thermal management is a key component of any successful LeD-based lamp or luminaire design. operating at 42 w of power in this retail track light design, the XLamp CXA2530 LeD requires a heat sink to dissipate this thermal load. The heat sink in this design must not only dissipate the heat generated by the LeD, but also provide the mechanical frame for the LED, optic, driver and base. We used a market-ready heat sink/housing assembly, shown in Figure 2.6 The heat sink is made of anodized aluminum alloy, AA 6063, and is part of a kit that includes a cover glass, screw-on base and front optic cover ring. figure 2: CXA2530 retail track light heat sink/housing assembly 5 PCT is available at: pct.cree.com 6 model GD120-01, Losiwang, www.loswan.cn 1 LED System Comparison Report System: 3,000 90% 87% Model Model Model Flux T2 [3200] Tsp (ºC) 70 Flux Tj (ºC) 25 Flux Tj (ºC) 25 Price - $ Price - $ Price - $ SYS # LED SYS lm tot SYS W SYS lm/W 0.900 1 3073.91 37.617 81.7 #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A 0.950 1 3184.98 39.959 79.7 #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A 1.000 1 3290.86 42.326 77.8 #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A 1.100 1 3483.93 47.126 73.9 #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A 1.200 1 3653.5 52.025 70.2 #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A 0.000 #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A This document is provided for informational purposes only and is not a warranty or a specification. For product specifications, please see the data sheets available at www.cree.com. Copyright © 2009-2012 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree, the Cree logo and XLamp are registered trademarks of Cree, Inc. Target Lumens : Optical Efficiency: Electrical Efficiency: LED 1 LED 2 LED 3 Cree XLamp CXA2530 {EZW} (none) (none) |
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