*mydirectindustry

LUXEON K2 Datasheet

Product catalog summary

Introduction
LUXEON® K2 is a high-performance LED known for its superior thermal management, high drive current, and excellent light output. It is available in multiple colors, including various shades of white, blue, green, cyan, red, and amber. The LED is designed to deliver more usable light, optimize application size and cost, and simplify manufacturing through surface mount technology.

Technology Leadership
The LUXEON K2 boasts the highest operating junction temperature of 185°C, leading lumen performance of 140-175 lumens in 6500K white, and supports high drive currents up to 1500 mA. It features a low thermal resistance of 9°C/W and complies with JEDEC and RoHS standards.

Product Nomenclature
Available in configurations tested at 350 mA and 1000 mA, the part number includes parameters such as radiation pattern, color, color variant, test current, and minimum flux bin.

Average Lumen Maintenance Characteristics
LUXEON K2 LEDs are projected to maintain 70% of their lumen output after 50,000 hours of operation under specified conditions, based on independent and internal reliability tests.

Environmental Compliance
The product complies with the RoHS directive, ensuring no intentional addition of hazardous substances like lead, mercury, and cadmium.

Flux Characteristics
Tables provide detailed flux characteristics for various colors at different test currents, highlighting minimum and typical luminous flux or radiometric power.

Optical Characteristics
Optical characteristics include dominant and peak wavelengths, color temperature, and viewing angles for different colors, using InGaN or AlInGaP materials.

Electrical Characteristics
At 350 mA, the document details typical forward voltage, dynamic resistance, and thermal resistance for various colors.

Specifications
The document details specifications for LUXEON K2 LEDs, including forward current, ambient temperature, and thermal resistance. It highlights the use of Pulse Width Modulation (PWM) for dimming and presents current derating curves for different LED colors and drive currents.

Procedures
Graphs and tables illustrate the relationship between forward current and ambient temperature, emphasizing the importance of maintaining specific thermal conditions for optimal LED performance. Typical radiation patterns for different LED colors are also included.

Standards and Norms
The datasheet outlines binning structures for Cool-White, Neutral-White, and Warm-White LEDs, categorized by x, y coordinates and correlated color temperature (CCT) ranges, with a tester tolerance of ±0.005 on x, y color coordinates.

Recommendations
For optimal performance, adhere to specified current and temperature limits. Use PWM for dimming to achieve desired lighting effects without compromising LED longevity.

Key Data from Figures and Tables
- Figures 18-26: Show maximum forward current vs. ambient temperature for various LED colors and drive currents, highlighting the impact of thermal resistance on performance.
- Figures 27-32: Present typical spatial and polar radiation patterns for different LED colors, indicating relative intensity variations with angular displacement.
- Tables 11-13: Detail bin structures for Cool-White, Neutral-White, and Warm-White LEDs, listing typical CCTs and corresponding x, y coordinates.

Company Information
Philips Lumileds Lighting Company is a leading LED supplier with R&D centers in the US and the Netherlands, and production facilities in San Jose, Penang, and Singapore. The company is committed to advancing LED technology and bridging the gap between solid-state LED technology and traditional lighting applications.

Catalog excerpts

Highest operating junctiontemperature available, 185ΰC Industry leading lumen perform ance, > 140 175 lumens in 6500K white Highest Drive Currents 1500 mA Lowest Thermal Resistance 9 C/W > Industry Best Moisture Sensitivitylevel JEDEC 2a 4 week floor life without recondi tioning > Lead free reflow solder JEDEC 020c compatible > Autoclave compliant JESD22 A102 Industry Best LumenMaintenance 50,000 hours lifeat 1000 mA with 70% lumenmaintenance >

Open the catalog to page 1

Product Nomenclature > The LUXEON K2 is available in two configurations, one tested and binned at 350 mA and a second tested and binned at 1000mA. Due to production distribution and variance it is difficult to accurately correlate product performance across a broad drivecurrent range. This is one of the reasons Philips Lumileds has elected to offer multiple test current options of the LUXEON K2 tobetter service our customers. The part number designation is explained as follows:L X K 2 A B C D E F G for LUXEON K2 Emitter L 2 K 2 A B C D E F G H for LUXEON K2 StarWhere:A designates radiation pattern...

Open the catalog to page 3

Table 4. Typical TemperatureTypicalTypicalCoefficient ofThermalDynamicForwardResistanceForward Voltage V > [1] [2] [3] f Resistance Voltage Junction to(V) (ڢĦ) (mV/ > o C)Case ( > o C/W)ColorMin.Typ.Max.R > D ∆ V > F / ∆ T > J R θ > JC CoolWhite > [4] 2.793.424.231.02.09 (13 for Star) NeutralWhite > [4] 2.793.424.231.02.09 (13 for Star) WarmWhite > [4] 2.793.424.231.02.09 (13 for Star) Green > [4] 2.793.424.231.02.09 Cyan > [4] 2.793.424.231.02.09 Blue > [4] 2.793.424.231.02.09 Royal Blue > [4] 2.793.424.231.02.09 Red2.312.953.512.42.012 RedOrange2.312.953.512.42.012 Amber2.312.953.512.42.012...

Open the catalog to page 8

Table 5. Typical Forward Voltage V > [1] f Color(V) CoolWhite3.60 NeutralWhite3.60 WarmWhite3.60 Green3.60 Cyan3.60 Blue3.60 Royal Blue3.60 Red3.60 RedOrange3.60 Amber3.60 Notes for Table 5:1.Philips Lumileds maintains a tolerance of +/0.06V on forward voltage measurements.2.Dynamic resistance is the inverse of the slope in linear forward voltage model for LEDs. See figures 14 and 15.3Measured between 25ڰC = T > J = 110C at I > f = 700 mA. > LUXEON K2 Datasheet DS51 (7/07)9 size="-1">

Open the catalog to page 9

Table 6. Typical TemperatureTypicalTypicalCoefficient ofThermalDynamicForwardResistanceForward Voltage V > [1] [2] [3] f Resistance Voltage Junction to(V) (ڢĦ) (mV/ > o C)Case ( > o C/W)ColorMin.Typ.Max.R > D ∆ V > F / ∆ T > J R θ > JC CoolWhite > [4] 3.033.724.950.62.09 (13 for Star) NeutralWhite > [4] 3.033.724.950.62.09 (13 for Star) WarmWhite > [4] 3.033.724.950.62.09 (13 for Star) Green > [4] 3.033.724.950.62.09 Cyan > [4] 3.033.724.950.62.09 Blue > [4] 3.033.724.950.62.09 Royal Blue > [4] 3.033.724.950.62.09 Notes for Table 6:1.Philips Lumileds maintains a tolerance of 0.06V on forward...

Open the catalog to page 10

Figure 1. 4lead Gullwing Package Outline Drawing. >

Open the catalog to page 13

Conductive Pad ConductivePad ConductivePad Soldermask Package Outline > Figure 2. 4 Lead Gullwing Solder Pad Design. Figure 3. 4 Lead Gullwing Package Solder Pad Layout. Notes for Figure 2:1.Electrical isolation is required between signal leads and hexagonal heat slug contact. 2.For optimal thermal performance, maximize board metallization at hexagonal heat slug contact. > Figure 4. 4Lead Gullwing Pin Out Diagram. LUXEON K2 Datasheet DS51 (7/07) 14 size="-1">

Open the catalog to page 14

[8] Figure 5. 2Lead Gullwing Package Outline Drawing. >

Open the catalog to page 15

PIN FUNCTION 1 NC (TRIMMED) 2 ANODE 3 NC (TRIMMED) 4 CATHODE >

Open the catalog to page 16

LABEL FORMAT CATCODE FLUX. COLOR. VF BIN SERIALNUMBER SERIALNUMBER DATECODE PRODUCTIONWEEK&YEAR PARTNUMBER PARTNUMBER PIN FUNCTION 1 NC 2 ANODE 3 NC 4 CATHODE >

Open the catalog to page 17

Relative Spectral PowerDistribution Spectral Power Distribution > Relative Spectral PowerDistribution Spectral Power Distribution >

Open the catalog to page 19

Figure 21: Maximum forward current vs. ambient temperature, based on T JMAX = 150кC. Figure 22: Maximum forward current vs. ambient temperature, based on T

Open the catalog to page 27

70% 80% 90%100% -100-80-60-40-20020406080100 60% > Relative Intensity (%) Typical Upper Bound Typical Lower Bound 0%10%20% 30%40%50% > Figure 29: Typical Representative Spatial Radiation Pattern for Green, Cyan, Blue and Royal Blue Lambertian. Figure 30: Typical Polar Radiation Pattern for Green, Cyan, Blue and Royal Blue Lambertian. Angular Displacement (Degrees) >

Open the catalog to page 31