Datasheet

2020
Copyright © 2012-2015 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree
®
, the Cree logo, XLamp
®
and EasyWhite
®
are
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®
and the UR logo are registered trademarks of UL LLC.
20
XLamp
®
CXa1507 LED
RELATIVE LUMINOUS FLUX
The relative luminous ux values provided below are the ratio of:
• Measurements of CXA1507 at steady-state operation at the given conditions, divided by
• Flux measured during binning, which is a pulsed measurement at 400 mA at T
J
= 85 °C for the 18-V CXA1507 LED.
Using the 18-V CXA1507 LED as an example, at steady-state operation of Tc = 25 °C, I
F
= 650 mA, the relative luminous
ux ratio is 160% in the chart below. A CXA1507 LED that measures 710 lm during binning will deliver 1136 lm (710 *
1.6) at steady-state operation of Tc = 25 °C, I
F
= 650 mA.
0%
20%
40%
60%
80%
100%
120%
140%
160%
180%
200
250
300
350
400
450
500
550
600
650
700
750
Relative Luminous Flux
Current (mA)
Tc = 25
°C
Tc = 55
°C
Tc = 85
°C
Tc = 105
°
C
18 V