LEDs ♦ news digest
With two chips, the 3.2 mm x 3.0 mm GW
PSLPS1.CC has a luminous flux of 83 lm at 150 mA at typically 3000 K and 6.35 V and a minimum CRI of 90
The single chip GW
PSLMS1.CC also comes in a 3.2 mm x 3.0 mm package. It has a luminous flux of 20.5 lm at 65 mA at typically 3000 K and 2.9 V and a minimum CRI of 90.
Seoul Semi launches warm and cool LEDs
The compact III-nitride based Acrich LEDs result in designs where fewer LEDs are used, leading to smaller and lighter fixtures
Seoul Semiconductor has announced the release of a new generation of Acrich MJT 5050 LEDs, with high lumen output, reliability, and cost performance optimised for the outdoor lighting market.
This new Acrich series has dimensions of 5.0mm x 5.0mm delivering a typical luminous flux of 180 lumens at 20mA, 64V, 25° C, 5000K and can be driven to a maximum current of 60mA delivering up to 440lm.
Seoul Semi says the new Acrich series delivers a combination of high lumen output, efficacy, outstanding reliability and lm/$ all in one package.
This package results in designs where fewer LEDs are used, which leads to smaller and lighter fixtures enabling cost savings on a system level. This Acrich series delivers high performance without sacrificing on reliability or cost. It is an ideal LED for the outdoor lighting market where high efficacy and lifetime are critical.
Utilising Seoul Semiconductor’s high voltage architecture, Acrich MJT “Multi-Junction chip Technology,” the Acrich LED eliminates the trade-off between size and efficacy. Designers can take advantage of the high efficiency of high-voltage DC drivers or eliminate the driver by driving the LEDs directly of AC using the Acrich IC.
The SAW8LH0A (Warm) LED works at a typical temperature of 3000K. At 20mA, the LED has a typical luminous flux of 155 lm, an efficiency of 121 lm/W, and a minimum CRI of 80 with a typical forward voltage of 64V.
The SAW0LH0A (Cool) LED works at a typical temperature of 5000K. At 20mA, the LED has a typical luminous flux of 180 lm, an efficiency of 141 lm/W, and a minimum CRI of 70 with a typical forward voltage of 64V.
SAW8LH0A LED (Warm) SAW0LH0A LED (Cool)
Seoul Semiconductor Executive Vice President of Lighting sales division, Jay Kim has says, «In addition to high efficacy and reliability the TCO (Total Cost of Ownership) is an important metric for the street and area lighting market. This product will enable the market to come up with the next generation of high quality, efficient and competitively priced LED lamps.»
He adds, “The payback period especially for streetlights can be significantly reduced with new Acrich LED without compromising on reliability or efficiency. In the future, Seoul Semiconductor will introduce more products to penetrate the outdoor area lighting market.”
Plessey buys another reactor for GaN-on-silicon LEDs
This is the second 7 x 6” Aixtron reactor delivered to Plessey
Plessey Semiconductors has purchased another CRIUS II-XL MOCVD system for use in the manufacture of GaN LEDs on silicon wafers.
The company is further expanding its production capacities in this area. The Close Coupled Showerhead system recently delivered with a 7 x 6 inch configuration will supplement an existing production system from Aixtron.
Keith Strickland, Chief Technology Officer for Plessey says, “Our MaGIC (Manufactured on GaN-on-Si I/C) LED product in particular has been successfully launched this past year. As a result, we now plan to step up our production. To this end, and given our positive experience with Aixtron’s CRIUS II-XL system, we have purchased a further system of this type and are thus maintaining our successful cooperation with Aixtron.”
CRIUS II-XL reactor
June 2014
www.compoundsemiconductor.net 71
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