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CXA2520-0000-000N00P227F Datasheet(PDF) 6 Page - Cree, Inc

Part # CXA2520-0000-000N00P227F
Description  6-Inch Downlight Reference Design
Download  12 Pages
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Manufacturer  CREE [Cree, Inc]
Direct Link  http://www.cree.com/
Logo CREE - Cree, Inc

CXA2520-0000-000N00P227F Datasheet(HTML) 6 Page - Cree, Inc

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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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