This is a training module for the OSRAM Diamond Dragon Single Chip LEDs
Welcome to the training module on OSRAM Diamond DRAGON Single-Chip LEDs. This training module provides an insight into the Diamond DRAGON®, a high performance LED from the DRAGON® product family.
The Diamond DRAGON, OSRAM Opto Semiconductors’ brightest single-chip LED, is designed for use in office and residential lighting as well as automotive, industrial and signage applications. Positioned between the 3-watt Platinum DRAGON and the 10-watt OSTAR, it comes in the complete range of colors. And with its exceptional output, excellent thermal management and durability, it is the designer’s LED of choice in a wide range of applications
Here is a list of application areas for the Diamond Dragon LED. It can be used in various fields like Indoor-Outdoor lighting, Emergency lighting, Spotlights, Glass cabinet lighting. Above all, the Diamond Dragon® is predestined for use in applications in which high brightness combined with minimum space is needed or an extremely long lifetime is required.
This table shows the different Diamond DRAGON products. You can choose from a wide range of different types of the Diamond DRAGON LEDs. The Diamond DRAGON® is available in all colors of the rainbow, including several variations of white.
As with all LEDs of the product family, the Diamond DRAGON® is based on the same thermally optimized package design – consisting of a prefabricated plastic housing with an integrated heat sink and connection contacts. Deviating from the previous DRAGON® platform, the DRAGON® employs a black housing. This has the advantage that in display applications, the contrast is increased. Highly efficient 2mm² semiconductor chips of the latest thin film technology are at the center of the Diamond Dragon LEDs, ThinGaN® or Thinfilm, are employed. In order to guarantee optimal heat transfer within the housing, the semiconductor chips are mounted directly to the heat sink. The Diamond DRAGON® is also equipped with a long lifetime lens.
This figure shows the radiation characteristics of the Diamond DRAGON® LED, depending on the chip technology.
Here we show the Relative spectral emission for Diamond Dragon, standard eye response curve.
In order to achieve reliability and optimal performance with high power LEDs such as the Diamond DRAGON®, suitable thermal management is necessary. A principal limitation for the maximum allowable temperature for the Diamond DRAGON is that the junction temperature must not exceed 175°C. The warming of the Diamond DRAGON® generally arises from two sources, (existing ambient temperature), and the other is due to internal processes (current-dependent power losses). Basically, the maximum permissible junction temperature must not be exceeded, since this can lead to irreversible damage and spontaneous failure of LED. Due to the underlying physical dependencies with the function of light emitting diodes, the forward voltage, luminous flux, color coordinates and lifetime of an LED is influenced by the junction temperature.
With regard to aging, reliability and performance, it is not recommended that the LEDs are driven at their maximally allowable junction temperature. With increasing temperature, a reduction in lifetime can be observed. It should also be avoided that the temperature of the circuitry or the LED is less than the ambient temperature, since this can lead to condensation, ultimately damaging the LED.
In this page we have shown the soldering requirements and the temperature curve for lead-free soldering of the Diamond DRAGON®. As the profile shows the maximum solder temperature of 260°C and solder time of 30s must not exceed. Preparatory handling of the LED should correspond to JEDEC Level 2. For optimal mounting of the Diamond DRAGON to the circuit board and therefore, to guarantee the performance of the LED, it is advantageous to use the recommended solder pads in most cases. For optimized solder pad design, the copper surface around the integrated heat sink should be kept as large as possible. This serves to distribute and spread the heat which accumulates and is typically covered with solder resist it is Preconditioning according to JEDEC Level 2. it should be noted that the copper surfaces around the heat sink must be isolated from other solder pads or heat sink surfaces.
With its optimized thermal design and its excellent lifetime of more than 50,000 hours in normal operation, the Diamond DRAGON® LED is predestined for general lighting. With currents of up to two Amperes and extreme thermal loading, however, it also shows remarkable functionality and usability. With its optical and electrical characteristics, it opens up many application areas to developers and designers that were previously reserved to conventional lighting. Its solder pad compatibility with the Golden and Platinum DRAGON products and its comprehensive range of colors, including white, provides maximum flexibility for its use in a wide variety of applications.
Thank you for taking the time to view this presentation on Diamond DRAGON Single-Chip LEDs . If you would like to learn more or go on to purchase some of these devices, you may either click on the part list link, or simply call our sales hotline. For more technical information you may either visit the OSRAM site, or if you would prefer to speak to someone live, please call our hotline number, or even use our ‘live chat’ online facility.
Architainment (low resolution video walls on building facades)
Solid State Lighting:
Available Color Variants of the Diamond DRAGON Type Color Wavelength Typ. Brightness LR W5AP Red 625 nm 150 lm @ 1.4 A LA W5AP Amber 617 nm 185 lm @ 1.4 A LY W5AP Yellow 590 nm 140 lm @ 1.4 A LT W5AP True Green 528 nm 220 lm @ 1.4 A LB W5AP Blue 470 nm 75 lm @ 1.4 A LD W5AP Deep Blue 455 nm 1250 mW @ 1.4 A LUW W5AP White x/y 0.32/0.31* 280 lm @ 1.4 A LCW W5AP Warm White x/y 0.42/0.40* 200 lm @ 1.4 A