Posted to News on 28th Mar 2007, 19:07
Avago launches high-brightness 3W white LED
Avago Technologies is launching a low-profile 3W high-power white surface-mount (SMT) light emitting diode (LED) emitter for use in a wide range of solid-state lighting applications. Avago's new ASMT-MW20 Power LED emitter is capable of being driven at high currents to deliver up to 160 lumens (lm) of illumination to provide an energy-efficient and robust high-output light source for designers of portable, architectural, decorative and backlighting applications.
Typical applications for the ASMT-MW20 include torch lights and miner headlights, billboard and sign backlighting, accent lighting, architectural faccedil;ade lighting, street lights, reading and track lights, and lighting for machine vision equipment. This new SMT LED emitter from Avago can be driven to a high current of 700 mA to deliver up to 160 lm of light output - which is claimed to be 40 per cent brighter than competing LED emitters - to offer a claimed industry-best efficiency in terms of lumens-per-watt. Moreover, the high drive current capabilities and high-brightness provided by the ASMT-MW20 Power LED emitter makes it a excellent for solid-state lighting applications that require a high-output light source where space is limited.
Ng Kee Yean, business development manager for solid-state lighting at Avago Technologies, states: "LEDs are increasingly being used for a wide variety of solid-state lighting applications due to the high-brightness, long life, energy efficiency and space savings they provide designers. As a result, more lighting manufacturers need robust LED packages that are reliable and capable of emitting high light output to provide the level of brightness they require for their applications. Avago's new 3W Power LED meets these needs because it provides lighting designers with superior moisture sensitivity, an ultra-low thermal resistance and slim package profile that make it an industry-leading product in terms of brightness, and reliability when compared to other competing products currently available."
Additional advantages
In addition to the combination of high brightness, long life and compact size, Avago's ASMT-MW20 Power LEDs are said to provide two significant advantages in the production environment: they can be easily soldered using conventional surface-mount techniques to minimise production costs, and the package is qualified to a Joint Electronic Device Engineering Council (JEDEC) moisture sensitive level (MSL) rating of 2a. For manufacturers, this rating means that these LEDs can be kept in the open air (30degC, 60 per cent relative humidity) for up to four weeks after being removed from their sealed packaging without the need to remove absorbed moisture.
With an exposed pad design at the back of the package, the ASMT-MW20 Power LEDs incorporates InGaN technology to offer low thermal resistance, which allows them to efficiently transfer heat from the package to the motherboard, thereby maintaining long-term device reliability. This LED emitter features a low-profile design, which is extremely suitable in places where height is a constraint. Moreover, it is compatible with standard available surface-mount technology reflow soldering processes.
Features include:
- Long operating life
- Robust package design and thin footprint
- Energy efficient: offers exceptional lm/watt efficiency
- Exposed pad for excellent heat transfer
- Suitable for standard reflow soldering process
- High current operation: delivers up to 160 lm @ 700mA drive current
- Wide viewing angle of 110 degrees
- Heat and UV resistant silicone encapsulation
- Operating board temperature range: -30 to +85degC
- Storage temperature range: -40 to +120degC
- Pb-Free and RoHS compliant
Samples and production quantities are available now through Avago's direct sales channel and worldwide distribution partners.
