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Optoelectronics/Displays??

White LEDs enable optimum optical power

Posted: 29 Sep 2008 ?? ?Print Version ?Bookmark and Share

Keywords:White LED? optic? automotive?

Vishay Intertechnology Inc. has released what it claimed as the industry's first high-intensity white power SMD LEDs in CLCC-6 and CLCC-6 flat ceramic packages to offer InGaN/TAG on sapphire technology for high optical power from 2,240mcd to 5,600mcd.

With the objective to reduce costs in high-volume applications, the VLMW63 series carries the CLCC-6 package and a low thermal resistance to 50k/W, while the VLMW64 series in the CLCC-6 flat package gives a low thermal resistance of 40k/W and an ultralow profile of 0.9mm.

Measuring 3.3mm x 3.4mm, the ceramic packages of the LEDs let the additional current drive for a maximum light output while maintaining a high service life of up to 50,000hr. These make them suitable for light sources in space-limited applications, where thermal management is a major consideration. The devices are optimized for backlighting and illumination in automotive and transport, consumer and general applications. Typical end products are flashes for cameras; emergency lighting; and automotive instrument panels and exterior lighting such as brake lights and turn signals.

The LEDs have a typical luminous flux of 11000mlm and optical efficiency up to 30lm/W. The devices provide a luminous intensity ratio per package unit of IV max/IV min 1.6, forward voltage up to 4.3V and 60 half-intensity angle.

The VLMW63 and VLMW64 LEDs work well with IR-reflow solder processes, in relation to CECC 00802 and J-STD-020C. Preconditioned according to Jedec Level 4 standards, the CLCC-6 and CLCC-6 flat packages are Pb-free and RoHS-compliant. The devices are automotive-qualified to AEC-Q101 and have an ESD-withstand voltage up to 2kV in accordance with JESD22-A114-B.

-Gina Roos
eeProductCenter





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