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LED drivers tailored for solid-state lighting apps

Posted: 16 Feb 2010 ?? ?Print Version ?Bookmark and Share

Keywords:LED driver? LED controller? solid-state lighting? DSP?

88EM8080 LED drivers

Marvell Semiconductor has unveiled the 88EM8080 family of high-performance, low-cost and high-reliability controllers for LED lighting applications. The first products from this series, the Marvell 88EM8081 and 88EM8080 LED controllers can be used for a wide variety of solid-state lighting applications with output power ranges up to 150W.

These applications include, but are not limited to incandescent and fluorescent bulb replacement; traditional commercial lighting, retail signage and spotlights; streetlights and parking lights; and a variety of design influenced lighting scenarios including pendants, downlights, recessed lighting, floodlights, and pathway/marker illumination.

According to Zel Diel, managing director at Venture-Q market research firm, the LED driver ICs market is expected to exhibit high growth rates in practically all market segments and applications. "Our driver IC market forecast for high-end lighting fixtures and signage applications shows an average CAGR of 62 percent, growing from about $100 million in 2008 to $1.1 billion in 2013," said Diel. "Global design trends that favor energy savings and minimal form factors are driving this market. The key success factor for companies competing in this rapidly evolving market is the timely introduction of products targeted at specific applications."

In addition to advanced analog circuitry for high efficiency, the Marvell 88EM8080 series' architecture includes an optimized DSP core to add new, unique features and single stage PFCenabling manufacturers to use fewer external components and significantly reduce the BOM cost. This mixed-signal architecture is superior to traditional analog-only designs as it allows new features to be added quickly and enables a higher level of reliability and stabilitycritical to products such as LED lights which can last more than 50,000 hours. The Marvell 88EM8080 series also enables an adaptive feedback loop for a higher PFC level and much lower level of Total Harmonic Distortion for easier worldwide regulatory compliance, including Energy Star.

"Given the vast potential of digital LED technology in various lighting applications, manufacturers are looking to their semiconductor partners for designs that are highly efficient, and can easily add new, unique features not available with traditional lighting. Marvell has developed the 88EM8080 series to address the needs of customers and to meet the mass market opportunities afforded by LED lighting technology," said Kishore Manghnani, VP of green technology products at Marvell.

Marvell is currently sampling reference designs based on the 88EM8080 series and a companion wireless lighting control platform for a variety of lighting fixtures such as PAR20, PAR30, PAR38, R20, R30, R38 and T8 to major lighting OEMs. These designs range from 5W to 100W and are targeted at residential, commercial and outdoor applications.

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