CLD-DS67 Rev 9A Product family data sheet Cree XLamp CXA2540 LED Pro DuCt DEsCriPtion fEA turEs tAbLE of ContEnts The XLamp CXA2540 LeD array Available in 4step, 3step and 2step Characteristics ............................................2 expands Crees family of highflux, EasyWhite bins at 2700K, 3000K, Operating Limits ..........................................2 multidie integrated arrays, offering 3500K, 4000K & 5000K CCT and Flux Characteristics, EasyWhite Order high performance in an easytouse 4step EasyWhite bins at 5700K & Codes and Bins ...........................................3 platform. With XLamp LED lighting 6500K CCT Flux Characteristics, ANSI White Order class reliability, the CXA2540s Available in ANSI white bins at Codes and Bins ...........................................6 uniform emitting surface enables both 4000K, 5000K, 5700K & 6500K Relative Spectral Power Distribution .........7 directional and nondirectional lighting CCT Electrical Characteristics ............................7 applications and luminaire and lamp Available in 70, 80, 90 and Relative Luminous Flux ...............................8 designs. Available in 2step, 3step and 93minimum CRI options Typical Spatial Distribution .........................9 4step color consistency, and featuring Forward voltage option: 36V class Performance Groups Brightness .............9 a 19mm optical source, the CXA2540 85C binning and characterization Performance Groups Chromaticity ....... 10 brings new levels of flux and efficacy to Maximum drive current: 2100mA Cree EasyWhite Bins Plotted on the this form factor. 115 viewing angle, uniform 1931 CIE Color Space .............................. 13 chromaticity profile Cree ANSI White Bins Plotted on the The CX Family LED Design Guide Topside solder connections 1931 CIE Color Space .............................. 13 provides basic information on the Thermocouple attach point Bin and Order Code Formats ................... 14 requirements to use the CXA2540 LED NEMA SSL3 2011 standard flux bins Mechanical Dimensions .......................... 14 successfully in luminaire designs. Mechanical and optical footprint Thermal Design ........................................ 15 consistent with CXA2520 and Notes ........................................................ 16 CXA2530 Packaging ................................................. 17 RoHS and REACh compliant UL recognized component (E349212) Copyright 2013-2017 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree , XLamp and Cree, Inc. EasyWhite are registered trademarks and the Cree logo is a trademark of Cree, Inc. UL and the UR logo are registered trademarks of UL LLC. 4600 Silicon Drive Durham, NC 27703 USA Tel: +1.919.313.5300 WWW.CREE.Com/XLAmp XLamp CXa 2540 LED Ch ArAC tEristiCs Characteristics unit Minimum t ypical Maximum Viewing angle (FWHM) degrees 115 ESD withstand voltage (HBM per MilStd883D) v 8000 DC forward current mA 2100* Reverse current mA 0.1 Forward voltage ( 1100mA, T = 85C) v 36.2 j Forward voltage ( 1100mA, T = 25C) v 42 j * Refer to the Operating Limits section. oPErA ting LiMits The maximum current rating of the CXA2540 depends on the case temperature (Tc) when the LED has reached thermal equilibrium under steadystate operation. The graph shown below assumes that the system design employs good thermal management (thermal interface material and heat sink) and may vary when poor thermal management is employed. Please refer to the Mechanical Drawings section on page 14 for the location of the Tc measurement point. Another important factor in good thermal management is the temperature of the Light Emitting Surface (LES). Cree recommends a maximum LES temperature of 135C to ensure optimal LED lifetime. Please refer to the Thermal Design section on page 15 for more information on LES temperature measurement. CXA2540 2400 2100 1800 1500 1200 900 600 300 0 0 25 50 75 100 125 150 Case Temperature (C) Copyright 2013-2017 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree , XLamp and EasyWhite are registered trademarks and the Cree logo is a trademark of Cree, Inc. UL and the UR logo are registered trademarks of UL LLC. 2 If (mA)