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CXA2520-0000-000N00R240F Datasheet(PDF) 6 Page - Cree, Inc |
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CXA2520-0000-000N00R240F Datasheet(HTML) 6 Page - Cree, Inc |
6 / 12 page 6 XLamp CXa2520 LED 6-inCh DownLight 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 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. figure 2: pCt view of the number of LEDs used and driving current The PCT shows that, at 600 mA, one CXA2520 LED provides sufficient light output to meet the design goal. thermal Requirements we used a commercially available heat sink/housing, shown in Figure 3, for the 6-inch downlight in this reference design.5 The heat sink/housing is made of anodized forged aluminum. The heat sink/housing is part of a kit that includes a cover glass and front trim ring. figure 3: Top (left), side (center) and bottom (right) views of heat sink/housing We performed thermal simulations to verify this thermal design is sufficient. Figure 4 shows the thermal simulation results for the design. The simulated T Sp is 46 °C. 5 Model ADC 10, Xing Yi Lighting, www.xingyilight.com/main.asp 1 LED System Comparison Report System: 2,000 90% 87% Model Model Model Flux Q2 [2100] Tsp (ºC) 45 Flux 30F 90% [694] Tj (ºC) 85 Flux Tj (ºC) 25 Price - $ Price - $ Price - $ SYS # LED SYS lm tot SYS W SYS lm/W SYS # LED SYS lm tot SYS W SYS lm/W 0.520 2 3800.65 43.447 87.5 #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A 0.530 2 3856.12 44.35 86.9 #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A 0.540 2 3911.04 45.254 86.4 #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A 0.550 2 3965.44 46.16 85.9 #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A 0.600 1 2114.42 25.351 83.4 #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A 0.650 1 2239.96 27.637 81 #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A 0.700 1 2359.8 29.937 78.8 #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A LED 2 LED 3 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. Cree XLamp CXA2520 {EZW} Cree XLamp MT-G2: 36V {EZW} (none) Target Lumens : Optical Efficiency: Electrical Efficiency: LED 1 |
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