Osram Opto Semiconductors (Santa Clara, CA) is providing thermal models for computing different LED designs as downloads. A compact model for Flotherm software, to calculate thermal behavior, is available at www.osram-os.com/thermal-files. Customers can find documents and data needed for calculating thermal variables for different designs without building costly prototypes or carrying out time-consuming measurements. The data is available for standard, high-power LEDs in the visible range, particularly for the DRAGON family, the Power TopLED range, the Advanced Power TopLED range and some OSTAR variations.
The compact model available on the website is a simplified, thermal-geometry model that can be integrated in Flotherm software and used for customer-specific calculations. It is suitable, for example, in calculating the temperature distribution in a planned system. With extended application support, it is possible to design all end-applications, including display backlighting, in terms of thermal criteria.
(888) 446-7726; www.osram-os.com/thermal-files