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IRVINE, Calif., Dec 3, 2009 (GlobeNewswire via COMTEX News Network) -- Microsemi Corporation (Nasdaq:MSCC), a leading manufacturer of high performance analog/mixed signal integrated circuits and high reliability semiconductors, today introduced the first CCFL backlight inverter controller that significantly improves black-level quality and dynamic contrast performance in 40-inch-and-larger LCD TVs.
A leader in large-screen LCD TV innovations for more than a decade, Microsemi worked with leading LCD TV manufacturers to achieve this significant display-quality milestone. The new backlight controllers feature Microsemi's patented PureBLACK(TM) technology while setting new standards for image uniformity, reliability and protection, and lowering overall bill of material costs.
PureBLACK technology was developed by Dr. Xiaoping Jin, inventor of Microsemi's widely-used Jin Balancer concepts for economical lamp-voltage control and current balancing. PureBLACK technology achieves its superior black levels and dynamic contrast performance by building upon the Jin Balancer's unique ability to ensure lamp striking with very small duty cycles.
"Microsemi has been a pioneer in CCFL backlighting technology for many years," said Tom Kapucija, director of marketing with Microsemi's Analog Mixed Signal Group. "With CCFL backlit TVs projected to remain the dominant display technology for the next four or five years, it is important for Microsemi customers to offer the same dynamic contrast and performance possible with our industry's emerging technologies. PureBLACK technology fulfills that need while improving the energy efficiency of the display."
Designated the LX6503A(TM), Microsemi's latest addition to its CCFL inverter controller family brings advanced mega-contrast dimming to large-screen displays, including those that use the energy-saving high voltage LCD integrated power supply (HV-LIPS) topology.
Like Microsemi's recently introduced LX6523A(TM) solution for 37-inch-and-smaller displays, the LX6503A features soft-start capability, fault indication and flexible configuration support for push-pull, full-bridge or half-bridge drive topologies for ultra-low-cost large-screen displays. It includes synchronization (SYNC) functionality which significantly improves display quality by synchronizing both the frequency and phase of the lamp current between inverters -- or to external signals from a wide variety of sources including DVD and Blu-Ray devices.
The LX6503A controller integrates all necessary functionality for LCD TV / monitor displays in a single controller that also provides reliable lamp striking, comprehensive brightness control modes and support for 24V inverter topologies in existing backlight applications. The LX6503A controller features tighter lamp current accuracy as compared to competitive solutions.
Key LX6503A Features:
* Superior black level and dynamic contrast performance with built
in protection
-- Integrated PureBLACK mega contrast dimming technology
-- Support for over-voltage and open-lamp protection
* Flexible and easy to use
-- Support for push-pull, half-bridge or full-bridge inverter
configurations
-- Inverter SYNC functionality
-- PWM- or analog-based burst dimming
-- Wide range of supply operation from 6V to 27V
-- 600mA source/sink drive and on-chip regulator with under-
voltage lockout protection
* Configurable and robust operation
-- Reliable operation supported via programmable strike time
and strike frequency
-- User-settable burst dimming frequency and fault time
-- Multiple fault detection capabilities including open-lamp,
over-voltage, short-circuit and over-current protection
-- -40C to +85C operating temperature range
Pricing and Availability:
The LX6503A is production-released and is priced at less than $0.60 in OEM quantities. It is housed in a 16-lead, narrow-body small outline plastic package. Data sheets are available on the Microsemi website: http://www.microsemi.com. Application notes and evaluation kit information are available from Microsemi sales representatives: http://www.microsemi.com/contact/contactfind.asp.
Attachments:
Figure 1: LX6503A typical application circuit
http://www.microsemi.com/PRimages/LX6503A_TypicalApplication.pdf
Figure 2: [device image]
http://www.microsemi.com/PRimages/LX6503A_Photo.jpg
Figure 3: LX6503A Product Brief
http://www.microsemi.com/PRimages/LX6503A_ProductBrief.pdf
About Microsemi
Microsemi Corporation, with corporate headquarters in Irvine, California, is a leading designer, manufacturer and marketer of high performance analog and mixed-signal integrated circuits and high reliability semiconductors. The company's semiconductors manage and control or regulate power, protect against transient voltage spikes and transmit, receive and amplify signals.
Microsemi's products include individual components as well as integrated circuit solutions that enhance customer designs by improving performance and reliability, battery optimization, reducing size or protecting circuits. The principal markets the company serves include implanted medical, defense/aerospace and satellite, notebook computers, monitors and LCD TVs, automotive and mobile connectivity applications. More information may be obtained by contacting the company directly or by visiting its website at http://www.microsemi.com.
The Microsemi Corporation logo is available at http://www.globenewswire.com/newsroom/prs/?pkgid=1233
"Safe Harbor" Statement under the Private Securities Litigation Reform Act of 1995: Any statements set forth in this news release that are not entirely historical and factual in nature, including without limitation statements concerning the first CCFL backlight inverter controller that significantly improves black-level quality and dynamic contrast performance in 40-inch-and-larger LCD TVs, are forward-looking statements. These forward-looking statements are based on our current expectations and are inherently subject to risks and uncertainties that could cause actual results to differ materially from those expressed in the forward-looking statements. The potential risks and uncertainties include, but are not limited to, such factors as rapidly changing technology and product obsolescence, potential cost increases, variations in customer order preferences, weakness or competitive pricing environment of the marketplace, uncertain demand for and acceptance of the company's products, adverse circumstances in any of our end markets, results of in-process or planned development or marketing and promotional campaigns, difficulties foreseeing future demand, potential non-realization of expected orders or non-realization of backlog, product returns, product liability, and other potential unexpected business and economic conditions or adverse changes in current or expected industry conditions, difficulties and costs of protecting patents and other proprietary rights, inventory obsolescence and difficulties regarding customer qualification of products. In addition to these factors and any other factors mentioned elsewhere in this news release, the reader should refer as well to the factors, uncertainties or risks identified in the company's most recent Form 10-K and all subsequent Form 10-Q reports filed by Microsemi with the SEC. Additional risk factors may be identified from time to time in Microsemi's future filings. The forward-looking statements included in this release speak only as of the date hereof, and Microsemi does not undertake any obligation to update these forward-looking statements to reflect subsequent events or circumstances.
This news release was distributed by GlobeNewswire, www.globenewswire.com
SOURCE: Microsemi Corporation
CONTACT: Microsemi Corporation Financial Contact: John Hohener, Vice President and CFO (949) 221-7100 Editorial Contact: Cliff Silver, Corporate Communications Manager (949) 221-7100
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