10-Watt Lednium SMD (120° Viewing Angle) OVTL09LG3x Series • • • • • Revolutionary 3-dimensional packaged LED source Robust energy-efficient design with long operating life Low thermal resistance (2.5°C/W) Exceptional spatial uniformity Available in amber, blue, green, red, cool white, daylight white, warm white and multi-colored The OVTL09LG3x Series surface mount provides a 10-Watt energy-efficient 3-dimensional packaged LED source that offers high luminance, low thermal resistance @ 2.5°C/W and a long operating lifespan. Devices offer a 120° viewing angle and are available in amber, blue, green, red, cool white, daylight white, warm white and multicolored. Applications • • • Automotive exterior and interior lighting Architectural lighting Electronic signs and signals Flux Characteristics (IF = 1.05 A, TJ = 25° C) Part Number OVTL09LG3A OVTL09LG3B OVTL09LG3G OVTL09LG3R OVTL09LG3W OVTL09LG3WD OVTL09LG3WW OVTL09LG3M RoHS Viewing Angle Warm White Typical Luminous Flux (lm) 270 70 250 230 250 275 230 Red/Green/Blue 221 Emitted Color Amber Blue Green 120° Red Cool White Daylight White Moisture Lens Color Water Clear DO NOT LOOK DIRECTLY AT LED WITH UNSHIELDED EYES OR DAMAGE TO RETINA MAY OCCUR. OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible. OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 [email protected] www.optekinc.com Issue B 0507 Page 1 of 11 10-Watt Lednium SMD OVTL09LG3x Series Package Drawing: OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible. Issue B 0507 Page 2 of 11 OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 [email protected] www.optekinc.com 10-Watt Lednium SMD OVTL09LG3x Series Absolute Maximum Ratings DC Forward Current 1.05 A Peak Pulsed Forward Current 1 3A Reverse Voltage 15 V Maximum Allowable Junction Temperature2 130° C Storage and Operating Temperature -50° ~ +85 ° C Notes: 1. Pulse width 1 ms maximum, duty cycle 1/16. 2. Thermal resistance junction to board (TJB) is 2.5° C/W. Electrical Characteristics (IF = 1.05 A, TJ = 25° C) PARAMETER MIN TYP MAX UNITS Forward Voltage (Amber) 5.7 6.9 7.8 V Forward Voltage (Blue) 8.7 10.2 11.1 V Forward Voltage (Green) 9.6 10.8 12.0 V Forward Voltage (Red) 5.7 6.9 7.8 V Forward Voltage (Red/Green/Blue) 8.5 9.2 9.9 V Forward Voltage (White) 8.7 10.2 11.1 V VF Temperature Co-efficient (Amber, Red) ---- -6.0 ---- mV/°C VF Temperature Co-efficient (White, Blue) ---- -4.8 ---- mV/°C VF Temperature Co-efficient (Green) ---- -5.0 ---- mV/°C 50% Power Angle ---- 120 ---- deg SYMBOL VF 2 Θ½ Optical Characteristics (IF = 1.05 A, TJ = 25° C) COLOR DOMINANT WAVELENGTH SPECTRAL FULL-WIDTHHALF-MAXIMUM DOMINANT WAVELENGTH TEMPERATURE DEPENDENCE MIN TYP MAX Amber 590 595 600 16 nm 0.08 nm/° C Blue 455 460 465 24 nm 0.05 nm/° C Green 510 515 520 40 nm 0.04 nm/° C Red 620 625 630 18 nm 0.05 nm/° C Color Cool White Minimum CCT (°K) Maximum CCT (°K) 6400 7600 Daylight White 5200 6400 Warm White 3200 3800 Chromaticity Coordinates Cx .298 .306 .313 .317 Cy .314 .288 .34 .307 Cx .313 .318 .334 .338 Cy .341 .300 .326 .382 Cx .395 .395 .435 .435 Cy .372 .390 .426 .443 OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible. OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 [email protected] www.optekinc.com Issue B 0507 Page 3 of 11 10-Watt Lednium SMD OVTL09LG3x Series CIE Chromaticity Diagram Y X Spatial Intensity Distribution -100 -80 -60 -40 -20 0 20 40 60 80 100 Angle (degrees) Normalized Spectral Intensity vs Angular Displacement OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible. Issue B 0507 Page 4 of 11 OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 [email protected] www.optekinc.com 10-Watt Lednium SMD OVTL09LG3x Series Typical Electro-Optical Characteristics Curves Input Current = 1.05A, TJ = 25° C Normalized Spectral Intensity Input Current = 1.05 A, TJ = 25° C 1.0 1.0 0.8 0.8 0.6 0.6 0.4 0.4 0.2 0.2 ——Cool White 0.0 380 0.0 430 480 530 580 630 680 730 200 780 300 400 500 600 700 780 Wavelength Characteristics Wavelength Characteristics Input Current = 1.05A, TJ = 25° C Input Current = 1.05A, TJ = 25° C 1.0 1.0 Normalized Spectral Intensity Normalized Spectral Intensity Wavelength (nm) ——Daylight White 0.8 0.6 0.4 0.2 300 400 500 600 700 0.6 0.4 0.2 0.0 200 0.0 200 ——Warm White 0.8 780 300 Wavelength (nm) 400 500 600 700 780 Wavelength (nm) Wavelength Characteristics Wavelength Characteristics Luminosity normalized to TJ = 25° C Normalized Luminosity Luminosity normalized to TJ = 25° C 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 OPTEK Part Number 0.0 - 0 20 40 60 80 100 120 140 160 % Normalized Luminosity at Junction Temperature (° C) 0 25 50 75 100 125 OVTLO9LG3A 125 100 85 70 60 45 OVTLO9LG3B 107 100 95 87 75 65 OVTLO9LG3G 110 100 95 85 70 65 OVTLO9LG3R 135 100 90 75 65 50 OVTLO9LG3W 105 100 93 82 68 60 OVTLO9LG3WD 105 100 93 82 68 60 OVTLO9LG3WW 105 100 93 82 68 60 Junction Temperature °C Junction Temperature Characteristics Junction Temperature Characteristics OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible. OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 [email protected] www.optekinc.com Junction Temperature °C Issue B 0507 Page 5 of 11 10-Watt Lednium SMD OVTL09LG3x Series IF (mA) IF vs VF 1600 1400 1200 1000 800 600 400 200 0 red blue amber green 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 VF (V) Forward Current vs. Forward Voltage Derating of continuous forward current must be observed to prevent maximum junction temperature from being exceeded. 120 120 100 100 Maximum Current (%) Maximum Current (%) Derating of continuous forward current must be observed to prevent maximum junction temperature from being exceeded. 80 60 40 20 0 80 60 40 20 20 40 60 80 100 120 140 0 Ambient Temperature °C 20 40 60 80 100 120 140 Ambient Temperature °C Derating Curves - Blue, Green and White LEDs Derating Curves - Amber and Red LEDs Critical Thermal Conditions (To maintain junction temperature (TJ) at 85° C) WHEN MOUNTED ON: USE SAFE OPERATING CURRENT OF: FR4 PC BOARD IMS SPREADER PLATE 3x3x1 in. FIN EXTRUSION ACTIVE HEATSINK 200 mA 500 mA 700 mA 800 mA 1000 mA NOTE: Refer to OPTEK Application Note #228 on thermal management (www.optekinc.com/pdf/AppNote228.pdf). OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible. Issue B 0507 Page 6 of 11 OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 [email protected] www.optekinc.com 10-Watt Lednium SMD OVTL09LG3x Series OPTEK 10-watt Lednium Markings Θ Cathode OVTL09LG3X Date Code-Batch Number MALAYSIA FRONT BACK Packaging: 25 pieces per tray OPTEK’s Lednium Series Solid State Lighting products package the highest quality LED chips. Typically, the lumen output of these chips can be as high as 70% after 50,000 hours of operation. This prediction is based on specific test results and on tests on similar materials, and relies on strict observation of the design limits and ratings included in this data sheet. OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible. OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 [email protected] www.optekinc.com Issue B 0507 Page 7 of 11 10-Watt Lednium SMD OVTL09LG3x Series Thermal Resistance Optek Lednium Series 1-watt Cup – Measured value 2oC/w (OVTL01LGAxx) Optek Lednium Series 10-watt Matrix – Measured value 2.5oC/w (OVTL09LG3xx) Theory In line with industry practice, the thermal resistance (Rth) of our LED packages is stated as Rθ j-b, thermal resistance from the junction region ( j ) of the die, to the board (b) - PCB or other mounting surface. What this means in a practical sense, is that when operating at rated input (1watt approx.) the junction of a die in a cup product will attain a temperature that is 2oC higher than a reference point on the mounting surface beneath it. In the case of a 10-watt Matrix product, the maximum temperature difference between any junction and the reference point is 25oC (2.5oC/w x 10w). The thermal path thus quantified is a composite of a number of thermally resistive elements in a series and or parallel configuration, but lumped together into a single parameter for convenience. For an end user of LED products then, this constant allows the junction temperature to be determined by a simple measurement of the temperature of the mounting surface. Optek recommends that the design value of sustained die junction temperature be limited to 80oC. In an ambient temperature of 25oC, the board temperature of a 10-watt device must be constrained below 55oC to comply with this recommendation, and for a 1-watt cup the board can theoretically operate at up to 78oC. From the diagram above it can be seen that the heat generated in the junction region follows a somewhat serial conductive path through the package to the major radiating surface – which in this example is a single sided PCB. Some additional radiation may occur directly from the upper surface of the package (not shown). This would be conducted upward from the die surface through the transparent encapsulating material to the package surface and be radiated from there. To all practical purposes this is a very minor effect. The polymer encapsulants in normal use are poor conductors of heat. OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible. Issue B 0507 Page 8 of 11 OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 [email protected] www.optekinc.com 10-Watt Lednium SMD OVTL09LG3x Series Typical elements in the conducting path and corresponding nominal thermal conductivities are: Elements w/mK Epilayers GaN/InGaN 150 Substrate Sapphire 50 Die attach material Conductive epoxy 10 Package Silver plated copper Solder Solder (Sn/Ag/Cu) Copper cladding Copper 350 35 300 Note : Thermal conductivity is a physical constant. For the materials above, the respective contribution each makes to the overall thermal resistance (Rθ j-b) is a function of the thickness of each material layer, and the surface area. Thermal Conductivity (TC) is defined to be the heat conducted in time (t), through thickness (T) in a direction normal to a surface area (A), due to a temperature difference (δT). Therefore TC= q/t x {T/[A x δT]} and δT = [Q x T]/[A x TC] where δT = Temp. difference (K) Q = Power (w) A = Surface area (m2) T = layer thickness (m) TC = Thermal Conductivity (w/mK) Theoretical Calculation (for 1 watt dissipated in a cup product via a single 40mil die) GaN Thickness approx 10 x 10-6 Area 10-6 = 1 x 10x10-6/ 10-6 x 150 = 0.07 K Substrate T = 60 x 10-6 = 1 x 60x10-6/ 10-6 x 50 = 1.2 K Die attach T = 20 x 10-6 A = 2 x 10-6 = 1 x 20x10-6 / 2x10-6 x 10 =1 Package T = 0.4x10-3 A = 6x10-6 = 1 x 0.4x10-3/ 6x10-6 x 350 = 0.19 Solder T = 60x10-6 A = 6x10-6 = 1 x 60x10-6/6x10-6 x 25 = 0.4 Total Calculated δT = 2.86K OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible. OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 [email protected] www.optekinc.com Issue B 0507 Page 9 of 11 10-Watt Lednium SMD OVTL09LG3x Series Power input is 1 watt; however, some power is converted into light energy. Assuming this is of the order of 200mw, the adjusted value of δT is 2.29K. The calculation now assumes that all of the dissipation, 800mw of heat, is conducted along the thermal path, thereby ignoring any conduction and subsequent radiation that is not directionally normal to the surfaces considered, ie: conduction through the encapsulant material vertically away from the board, and conduction horizontally away from the heat source. The calculation also assumes that there is no contribution to thermal resistance at the boundaries between material layers. In practice it is improbable that perfect transfer will occur at these transition regions, even though the bonding between layers in this example are of high quality. In general, the calculation indicates that the measurements below are of the order of magnitude that can be expected. The alternate matrix product range is of a much more complicated thermal design, which does not lend itself to a simple theoretical calculation similar to that shown above. There are multiple incident heat sources, parallel heat conduction paths, and significantly larger surface area for stray radiation, eg. Cup above has a surface area available for stray radiation of approximately, 25mm2 per watt of input power. A 10-watt matrix product has approximately 92.5mm2 of exposed surface per input watt. Measurements The key to an accurate measurement of thermal resistance is to obtain a reliable value for the junction temperature (Tj). Since the die itself is, and must be, encapsulated during testing, and the junction is contained within the structure of the die, direct measurement of the junction temperature by normal means is not possible. Two methods of non-contact thermography are available, both of which rely on emitted infrared detection. Infrared imagery by calibrated radiograph is a possibility; however, in the instance of a cup product only a small value of δT is expected which makes accurate estimation of the actual temperature gradient difficult using colorimetry. The alternative measurement type is digital infrared thermography. This means there is an inherent uncertainty in the calculation algorithm, which sometimes gives results considered unacceptably inaccurate. In this instance absolute accuracy is of secondary importance because the value to be determined is a temperature difference (δT) which requires only relative values – any error in a first reading will also be present in subsequent readings that are about the same value. The difference between readings is accurate. The other significant drawback to infrared thermometers is a limitation to minimizing the spot size over which the measurement is made. This poses a difficulty for small assemblies like an LED cup, and in particular the added complication that the calculated temperature is an average value for the area being interrogated further complicates the issue. Another concern is sometimes raised about the ability of this type of instrument to detect a heated surface beyond the closest transparent radiating surface. This is a significant issue for far field measurements; however, it is simple to demonstrate that this does not hold true for the near field, and particularly when the incident beam has a known focal length. OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible. Issue B 0507 Page 10 of 11 OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 [email protected] www.optekinc.com 10-Watt Lednium SMD OVTL09LG3x Series Measurement Instrument: IR Thermometer Auto ranging: -100 to 1200oC Spot size 3mm D. Focus 25.4mm Cup Product Input 350mA at 3.3V(1watt) Averaged Test Results Tj Tb 32 30.2 δT 1.8 Rth 1.8oC/W Matrix Product Input 1050mA at 10.2V(10.7watts) Averaged Test Results Tj Tb δT 89 62 27 Rth 2.52°C/W OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible. OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 [email protected] www.optekinc.com Issue B 0507 Page 11 of 11