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Intelligent programmable LED driver packs 150-W Efore’s Italian-based ROAL Electronics acquisition has launched a higher power Intelligent LED driver series which combines smart technology, space and energy savings, and user-managed flexibility into a compact 150 W package. The Ozone 150W series single channel constant current LED drivers are designed for directly powering LEDs in high power indoor and outdoor lighting fixtures such as street, tunnel, flood, parking lot, industrial and high baylighting. Ozone integrates many intelligent functions, such as adjustable dimming, soft start and constant light feature, plus complimentary software and user friendly programming tools that may be used to set all of the driver’s features. A dedicated case accessory enables the unit to be used in remote gear applications. First samples will be ready in December 2013 for OEM customers. The family will be released to distribution beginning in Q2/2014. Efore www.efore.com Wide-area portable LED light focuses on Class 1, Division 2 applications Molex has introduced the Woodhead Wide-Area Portable LED Light for Class 1, Division 2 locations including petrochemical and refinery environments. Designed to operate safely in hazardous conditions, the Wide-Area Portable LED light delivers industry leading 5270-lumen output lasting 50,000 hours, provides instant-on capability and is reliable even in extreme temperatures of -40 to +40°C. Used for task lighting in maintenance and repair operations, the Wide-Area Portable LED light features a rugged cast-aluminium enclosure with a rubber lens-gasket assembly to ensure superior strength and durability, including resistance to shock, vibration, impact and intrusion of dust and water. It includes four 20 W LED arrays with Molex array holders that can be easily serviced and contain no mercury, eliminating costly lamp disposals. The colour temperature of 5100K and CRI of 87 helps reduce fatigue and allows for better colour differentiation than alternate light sources. Additionally, a removable diffuser under the lens cuts the harshness of LED light for improved visibility. The Wide-Area Portable LED Light is third-party certified to CSA Class I, Division 2, Groups B, C and D requirements with a T4A temperature rating and NEMA Type 3 enclosure rating for wet locations. Because of its hazardous duty rating, the lamp can be used for scaffold and area lighting in petrochemical, refinery, utility and gas processing plants. The light features a versatile mounting system and a variety of electrical cable options, including Brad power cordsets for Zone 2 environments, providing a flexible set up and stability while in use. Molex Incorporated www.molex.com High-current LED driver controller handles 250W LT3797 is a triple output DC/DC controller designed to drive three independent channels of LEDs. Its fixed frequency, currentmode architecture delivers constant, accurately regulated LED current over a wide range of supply and output voltages. Its 2.5V to 40V input voltage range with transient tolerance up to 60V makes it suitable for automotive applications as well as a wide range of industrial applications. Each of the LT3797’s channels can drive a wide range of LED power in either stepup, step-down or SEPIC topologies. In a boost configuration, it powers three channels of up to 90V of LEDs with LED currents in excess of 1A, delivering over 250W of power from a nominal 12V input with efficiencies as high as 93%. Each of the three channels is operated by an independent “True Color” PWM signal, enabling each channel to be dimmed to ratios as high as 3000:1. Each channel has open-LED and short-circuit protection in boost mode, providing high safety and reliability designs required in automotive applications. A frequencyadjust pin enables the user to program the frequency between 100 kHz and 1 MHz. The thermally-enhanced 7x8 mm QFN package provides a compact solution footprint for 20W to 250W LED applications. Linear Technology www.linear.com www.electronics-eetimes.com Electronic Engineering Times Europe December 2013 29


EETE DEC 2013
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