Philips Lumileds Brings New Standards to Mid-Power LEDs for Illumination
Philips Lumileds has launched its first white, mid-power LED and in doing so has raised expectations for mid-power reliability, performance over time and temperature, and color maintenance. Intended for office and other distributed LED lighting solutions, Philips Lumileds uniquely specifies CCT, CRI, and R9 for each of its new mid-power emitters.
“The lighting industry’s performance expectations of mid-power LEDs is well below the expectations for power LEDs,” said Rahul Bammi, VP Marketing at Philips Lumileds. “We believe that distributed light solutions like those found in offices should deliver quality of light, color stability and useable lifetimes similar to what our LUXEON LEDs deliver. Most importantly, lighting designers and technical specifiers should have the confidence that the light source inside will perform as intended. We are certain that the new Lumileds 5630 emitters will outperform other options over their lifetime.”
Philips Lumileds extends its mid-power portfolio to general Illumination applications. Philips Lumileds other mid-power products include SuperFlux, SnapLED and SignalSure LEDs, which are the most widely used LEDs for automotive exterior lighting.
Sharp Presents a New Generation of Its Mini Zenigata LEDs
The new product generation is again based on a small plate made of technical ceramics (aluminium oxide Al2O3) with the dimensions 15 mm by 12 mm by 1.6 mm. Efficiency was able to be improved by up to 11 percent due to technical progress.
Depending on the module, the new types provide a luminous flux of up to (typically) 585 lumens, with a light efficiency of up to 91 lm/W at nominal operating data, a high CRI value of 82, and a long service life of 40,000 hours at an operating temperature of up to 90°C.
The new generation of 4 W arrays has a forward voltage of 9.6 V with a constant current of 400 mA, whereas the 7 W arrays have a voltage of 12.3 V with a current of 520 mA. The 4 W arrays, however, can also be operated with an increased constant current of 500 mA, thus making them capable of reaching a luminous flux of up to 400 lm. With the 7 W arrays, a luminous flux of up to 830 lumens can be reached, if they are operated with a current of 680 mA. The color temperatures of the new white-light LED arrays range from 2,700 to 6,500 Kelvin’s, with the shades Natural White, Warm White and Pure White.
The very smooth surface of the ceramic underside of the Mini Zenigata makes it possible to attach the modules easily and safely on a suitable heat sink, in order to achieve efficient heat dissipation.
Initial samples are available in the color temperatures of 3000 K and 4000 K. These can now be ordered from Sharp sales offices and distribution partners across Europe.
TI Introduces Industry’s First Dual Mode Off-Line Controller for Non-Dimmable LED Lighting
Texas Instruments, Inc. has introduced a new off-line primary side sensing controller to its portfolio of non-dimming LED drivers. The new TPS92310 AC/DC constant current driver with power factor correction (PFC) reduces cost and shrinks-to-fit in high-power LED retrofit bulbs, including A19, PAR30/38 and GU10.
The TPS92310 is the first in a family of primary side, regulated controllers with PFC. In May, TI will offer the TPS92311 with similar features and an integrated, 600 V power FET with avalanche energy capability, further reducing solution size and component count. The TPS92310 and TPS92311 join TI’s portfolio of off-line LED lighting controllers that include the National LM3445, the industry’s first TRIAC dimmable LED driver with both full-range and flicker-free dimming.
The TPS92310 is available in volume now from TI and its authorized distributors. Offered in a 10-pin MSOP package, the suggested retail price is $0.49 in 1,000-unit quantities.
18 Watt Constant Current AC/DC LED Power Supply
Green Watt Power, a Division of Calex Mfg., has announced the GLC-18 series of constant current AC/DC LED power supplies. The GLC-18 series with universal / full range AC input voltage of 100 to 277 VAC, offers 18 W output power and is available in three different models of constant current output at 350 mA, 500 mA and 750 mA with self-adjusting output voltage from 18 VDC to 54 VDC range in the various models. All models are enclosed to IP67 standards in extruded aluminium metal case design and well-suited for virtually all LED lighting applications for indoor, outdoor, signage, refrigeration, thermally harsh and damp environments.
The GLC-18 has efficiencies in the 85 percent range in the series with active power factor correction greater than 0.90 on every model. All units in the series have over voltage, over current, over temperature protection and are RoHS Compliant. Safety Agency approval is pending to UL/CSA 8750 and 1310 class 2 or 1 depending upon the model. Products in the series are CE approved. The product case dimension is 4.72”(L) by 1.38”(W) by 1.02”(H) with customer mounting provisions designed in the case design. All products in the series are designed and built for consistent performance and high reliability and come with a five year warranty.
Allegro MicroSystems, Inc. Introduces New Single Stage Off-Line LED Driver IC Series
Allegro MicroSystems, Inc. has introduced the LC5540LD/LF single stage power factor corrected off-line LED driver IC series, which is manufactured and developed by Sanken Electric Co., Ltd. in Japan. The robust functions within these single stage converters have been developed to simplify system designs. This new series is targeted at the consumer and industrial markets targeting indoor and outdoor LED lighting and off-line LED lighting applications.
The LC5540LD/LF series are quasi-resonant topology switching power supply ICs, designed for input capacitorless applications making it possible for systems to comply with the harmonics standard (IEC61000-3-2 class C). These devices incorporate separate controller and power MOSFET chips. The controller adapts the average current control method for realizing high power factors, and the quasi-resonant topology contributes to the high efficiency and low EMI noise. The rich set of protection features helps to realize low component counts and high performance-to-cost power supply.
These devices are intended for isolated designs. The incorporated MOSFET has a VDSS (min) rating from 650 V (LC5545LD, LC5546LD, LC5546LF, and LC5547LF,) to 800 V (LC5548LD and LC5549LF). The RDS(on)(max) is 1.1 Ω (LC5547LF), 1.9 Ω (LC5546LD and LC5546LF,) and 3.95 Ω (LC5545LD). These devices are capable of a maximum output power of 20 to 80 W on a 230 VAC supply to 16 W (LC5546LD) to 55 W (LC5547LF) on a universal supply based on the thermal rating. Note that the maximum output power can be up to 120 percent to 140 percent of this value. However, it may be limited in applications with low output voltage or short duty cycle.
This series is available in the DIP8 and TO220 packages that have been designed to protect the IC and overall system from excessive heat. Similar competitive designs on the market cannot easily detect the power MOSFET rising temperatures.
Excelitas Technologies Introduces its Newest White ACULED for Medical OEM Applications
Excelitas Technologies has introduced its newest model in the ACULED family of chip-on-board LED packages, one expressly designed to meet the rigorous performance requirements of medical applications such as surgical operating room lights, examination lights and dental operatory lights.
Excelitas’ newest ACULED model contains four separately addressable LED chips to provide widely tunable color temperatures (CCT) from 3,500 K to 5,500 K, while maintaining the high Color Rendering Index (CRI), high R9 value, and light output (luminous flux) required in the operating room. With the new ACULED model, CRIs over 95 are achievable along with R9 values of well above 90. CRI is a quantitative measure of the ability of a light source to reproduce colors in comparison to a reference light source, evaluated on a 100-point scale. The R9 value indicates how well the light shows deep, saturated shades of red. The color red is clearly critical in medical applications such as surgery.
Additional benefits of the ACULED platform include improved heat transfer from the chips to substrate and heat sink, and its compact design with chips that are extremely closely spaced, allowing for better color mixing and compact optics.
Excelitas offers a standard four-chip COB package (ACULED Model R3C6) that comes with warm-white, cool-white, red and cyan LED dice. In addition, Excelitas offers a variety of design-your-own (DYO) chip combinations, one of the hallmarks of the flexible ACULED platform. All ACULED models are manufactured in Excelitas Technologies’ Pfaffenhofen, Germany facility, which is ISO 9001-certified.
“Excelitas’ newest ACULED for high CRI medical applications is an important addition to our growing portfolio of solid-state lighting products that are specifically designed for integration into OEM medical applications such as surgical operating room lights,” said Joel Falcone, senior vice president and general manager of Excelitas Technologies’ global lighting business. “LEDs are rapidly becoming the standard for surgical operating room lighting versus halogen and Xenon technologies and, through its flexible ACULED platform, Excelitas is excited to be able to provide medical OEMs with attractive options for a surgical lighting system that can effectively balance color temperature with CRI and light brightness."
GE Releases Zhaga-Compliant LED Modules
GE Lighting has made a significant breakthrough in the move toward greater standardization of LED light engines with the announcement of its first *Zhaga-compliant products.
GE Lighting's full range of Infusion LED modules will be carrying the Zhaga logo based on the modules being designed to the approved Zhaga 'Book 5' specification for Socketable Light Engines with Separate Electronic Control Gear. The Zhaga Consortium creates specifications aimed at ensuring the interchangeability of LED light sources from different manufacturers.
"These specifications are the path forward for LED modules and fixtures that can truly transform the way we light commercial and residential spaces," said John Strainic, global product general manager, GE Lighting. "Lighting designers and specification professionals around the world now have more freedom to think big because GE and the industry have progressed toward standards established by the Zhaga Consortium."
GE Lighting is also extending the range with the introduction of four new LED module products: a module for downlight applications, a modular system for creating high-intensity narrow beams, a new format spotlight engine based on Zhaga specification in 'Book 3', and a high lumen option. All have been designed with new interchangeable light engine specifications recently approved by the Zhaga Consortium.
GE Lighting has been a member of the Zhaga Consortium, a global consortium of companies from the lighting industry and beyond, since the consortium's establishment in February 2010. In view of the rapid and sustained development of LED technology, the Zhaga Consortium focuses on the mechanical, photometric, thermal and electrical compatibility of LED modules and controls.
"Modularity and interchangeability will benefit manufacturers and end users alike," said Andy Davies, sales development director for LED modules, GE Lighting. "The adoption of Zhaga specifications will speed product introduction, and reduce risk and development cost, while still encouraging design innovation. The further we travel down this path, the more accessible LEDs will become."
For more information about Zhaga visit www.zhagastandard.org.
*Zhaga is a trademark of the Zhaga Consortium.
Lumenpulse Expands Lumenbeam Series with Small Version
Lumenpulse, Inc. has released the Lumenbeam Small. Developed for exterior applications such as lighting landscapes, trees, pathways, monuments and architectural details, the Lumenbeam Small is a compact, low-wattage, high performance projector.
Using 14 watts, the Lumenbeam Small is a line voltage luminaire (120 to 277 volts), and offers a flexible package of options, including a choice of optics for flood or accent lighting. A range of accessories, including snoots and visors, help with beam control and avoid glare, while a wire guard provides protection for the fixture. Available in various color temperatures, the Lumenbeam Small has an optional corrosion-resistant coating that protects the luminaire in marine and coastal areas.
A new stake mount option enables Lumenbeam Small and Lumenbeam Medium models to be secured in the ground for garden and landscape lighting applications. And with pole mount, wall mount and surface ground mount options, combined with a compact footprint for tight spaces, the Lumenbeam Small provides additional flexibility for designers.
“The Lumenbeam Small meets a need that has been expressed to us repeatedly by lighting designers, who want to carry their design to the pathways and landscaped areas approaching the building,” said Yvan Hamel, Lumenpulse Vice President of Product Development. “It is a very versatile fixture with its size, mounting options, color choices and accessories offering flexibility to meet many challenges.”
Available in white, static colors, dynamic white and RGB, the white product is offered in five color temperatures; 2700 K, 3000 K, 3500 K, 4000 K and 5700 K. The 4000 K version produces 28,261 candelas at nadir with a 6˚ optic. Finally, Lumenpulse products, including the Lumenbeam Small, utilize a dual chamber technology, which helps dissipate heat creating an unmatched L70 lifetime of 120,000 hours.
Phihong Develops 80W External AC/DC LED Driver
Phihong USA has developed a new 80 W constant voltage LED driver that is well suited for a variety of harsh environment lighting applications. Designated the PDA080B-48VG, the universal input driver is rated for inputs of 100 VAC to 304 VAC and has a maximum output of 80 W at 48 VDC and 1.67 A.
“This new outdoor LED driver satisfies a niche architectural lighting design need by providing enough power to operate several luminaires at once for wash and area lighting,” said Keith Hopwood, vice president of marketing for Phihong USA. “The constant voltage design enables users to power an array of individual luminaires via driver ICs, eliminating the need for each to have its own separate driver.”
The new AC/DC LED driver is compliant with UL8750 and bears safety approvals from CE and cUL/UL. Additionally, the universal input of 100 to 304 VAC enables the driver to be fully functional at mains voltage inputs ranging from the standard North American 120 and 277 VAC to the standard European 230 and 240 VAC.
The PDA080B is water-resistant and fully potted, featuring an ingress protection rating of 65, and can withstand temperatures ranging from -40°C to 60°C. The driver has minimum average efficiency ratings ranging from 84 percent at 120 VAC input to more than 88 percent at 277 VAC input and has a calculated lifespan of 50,000 hours when operating at maximum load and an ambient 50°C.
The 80W LED driver also comes fully equipped with input over-current protection, short-circuit protection, output over-voltage protection, and open-circuit protection; features a minimum power factor correction greater than 0.9; and is covered by the five year warranty that Phihong offers on select LED drivers, including the PDA080 driver series.
Designed as a typical ballast with regards to shape and size, the PDA080B can be incorporated into new outdoor architectural lighting designs. Each driver measures 241 mm by 43 mm by 30.5mm and weighs 750 grams. Pricing for the PDA080B-48VG starts at $99.97 in single unit quantities.
|