Application Brief AB11A Electrical Drive Information TM Luxeon V Emitter, V Star, V Portable Driving a Single Luxeon V Light Source ue d Luxeon Sample Info LEDs should be driven at a constant current. The power dissipation causes the LED to heat up. Excessive heat destroys the LED. Please follow Application Brief`23 Thermal Design considerations for Luxeon V Power Light Sources which can be downloaded at www.lumileds.com to ensure proper heat management. nt in Figure 1. Luxeon V Star D is co At room temperature (25°C) • The current through a Luxeon V Star may not exceed 300 mA if no additional heatsinking is provided. The anode lead is denoted by a dot or a "+". The temperature of the back of the MCPCB may reach 110°C • A Luxeon V Emitter (Fig. 2) must be driven at a reduced current of maximum 50 mA due to the lack of a Metal Core Printed Circuit Board. The anode lead is denoted by a hole in the leadframe. • The back of the device is not electrically neutral and must be isolated from the leads. Figure 2. Luxeon V Emitter Luxeon V Light Source Battery Resistor Using Batteries (9 V (block)) see Fig. 3 Battery Configuration 9 V block Resistors for Luxeon V Star Resistors for Luxeon V Emitter Figure 3. Using Batteries Vfbin RT Vfbin UW VfbinRT Vfbin UW 12Ω / 3W 9.1Ω / 3W 75Ω / 3W 56Ω / 3W Power supply set to constant current Using Power Supplies (Fig. 4 or Fig. 5) Maximum Current setting (constant current mode) see Fig. 4 Maximum Voltage setting (constant voltage mode) see Fig. 5 Luxeon V Star Luxeon V Emitter 300mA 50 mA Luxeon V Light Source Figure 4. Constant Current Mode Resistor @ 9 V (const.) Resistor @ 9 V (const.) Vfbin RT Vfbin UW VfbinRT Vfbin UW 12Ω / 3W 9.1Ω / 3W 75Ω / 3W Power supply set to 9 V 56Ω / 3W Note: A Current Source in open load mode can generate high inrush currents when the LED gets connected to the current source. These currents may damage the LED. With current sources, always connect the LED first and then to set the current. Luxeon V Light Source Resistor Figure 5. Constant Voltage Mode o Typical Characteristics at 700mA, Junction Temperature, TJ = 25 C Radiation Pattern Color Typical Dominant [1] Wavelength λD or CCT Forward Test Current (mA) IF Typical Forward Voltage VF (V) Minimum Luminous Flux (lm) or Radiometric Power (mW) [1] ΦV Typical Luminous Flux (lm) or Radiometric Power (mW) ΦV Lambertian White 5500K 700 6.84 87.4 120 Lambertian Green 530nm 700 6.84 67.2 120 Lambertian Cyan 505nm 700 6.84 67.2 120 Lambertian Blue 470nm 700 6.84 18.1 30 [2] Royal Blue 455nm 700 6.84 275 mW 500 mW White 5500K 700 6.84 87.4 105 Side Emitting Green 530nm 700 6.84 67.2 110 Side Emitting Cyan 505nm 700 6.84 67.2 110 470nm 700 6.84 18.1 27 455nm 700 6.84 275 mW 450 mW [2] Side Emitting Blue Side Emitting Royal Blue ue d Lambertian Side Emitting Notes: 1. Minimum luminous flux performance guaranteed within published operating conditions. Luxeon types with even higher luminous flux levels will become avail able in the future. Flux values for Luxeon emitters and stars without secondary optics. The efficiency of the collimating optic is approximately 85%. nt in 2. Minimum flux value for 470 nm devices. Due to the CIE eye response curve in the short blue wavelength range, the minimum luminous flux will vary over the Lumileds’ blue color range. Luminous flux will vary from a minimum of 13.9 lm at 460 nm to a typical of 40 lm at 480 nm due to this effect. 3. All power light sources represented here are IEC825 Class 2 for eye safety. co Absolute Maximum Ratings White/Green/Cyan/ Blue/Royal Blue Parameter DC Forward Current (mA)[1] 700 D is Peak Pulsed Forward Current (mA) Average Forward Current (mA) LED Junction Temperature (oC) AluminumCore PCB Temperature (oC) Storage Temperature (oC) Emitter and Star [3] Soldering Temperature (oC) 1000 700 135 105 40 to +120 260 for 5 seconds max Notes: 1. Proper current derating must be observed to maintain junction temperature below the maximum. 2. All products are not sensitive to ESD damage (+/16,000 Volts by HBM condition). 3. Measured at leads, during lead soldering and slug attach, body temperature must not exceed 135oC. LuxeonTM emitters cannot be soldered by general IR or Vaporphase reflow, nor by wave soldering. Lead soldering is limited to selective heating of the leads, such as by hotbar reflow, fiber focused IR, or hand soldering. The package back plane (slug) may not be attached by soldering, but rather with a thermally conductive adhesive. Electrical insulation between the slug and the board is required. Please consult Lumileds’ Application Brief on Luxeon Emitter Assembly Information for further details on assembly methods. 4. Be carefull with a powered up current limited power supply, because of current spikes during power up and/or connection. Best practice is to connect the LED then turn up the voltage gradually. People building there own power supplies should design for minimum current spikes during power up and connection. For additional technical and application information please visit us online at www.luxeon.com Luxeon Sample Information Application Brief AB11A (1/04) 2 Company Information ue d Lumileds is a worldclass supplier of Light Emitting Diodes (LEDs) producing billions of LEDs annually. Lumileds is a fully integrated supplier, producing core LED material in all three base colors (Red, Green, Blue) and White. Lumileds has R&D development centers in San Jose, California and Malaysia. nt in Best, The Netherlands. Production capabilities in San Jose, California and Lumileds may make process or materials changes affecting the performance or other characteristics of our products. These products supplied after such changes will continue to meet published specifications, but may not be identical to products supplied as samples or under prior orders. Lumileds is pioneering the highflux LED technology and bridging the gap between solid state LED technology and the lighting world. Lumileds is co absolutely dedicated to bringing the best and brightest LED technology to D is enable new applications and markets in the lighting world. www.luxeon.com www.lumileds.com For technical assistance or the location of your nearest Lumileds sales office, call: Worldwide: +1 408.435.6044 US toll free: 877.298.9455 Europe: +31 499.339.439 Asia: +65 6248.4759 Japan: +81 426.60.8532 Fax: +1 408.435.6855 Email us at [email protected] ©2004 Lumileds Lighting U.S. LLC. All rights reserved. Lumileds Lighting is a joint venture between Agilent Technologies and Philips Lighting. Luxeon is a trademark of Lumileds Lighting. Product specifications are subject to change without notice. Lumileds Lighting, LLC 370 W. Trimble Road San Jose, CA 95131