IRVINE, Calif., May 18, 2007 (PRIME NEWSWIRE) -- Microsemi Corporation (Nasdaq:MSCC), a leading manufacturer of analog and mixed signal integrated circuits, has announced a new high performance multi-lamp controller designed with features optimized for lighting the cold cathode fluorescent lamps used in large screen LCD TV applications.
Designated the LX6501(tm), the new controller minimizes external components by fully integrating on-chip gate drivers having the capacity to drive N channel power MOSFETs on both the low and high sides of full bridge inverters. Input voltages can be as high as 27 volts. An on-chip regulator generates internal driver operating voltages that supply the output gate drive circuit.
"We work closely with designers of major LCD TV displays to determine the lamp controller features they want for their next-generation products," said Steven G. Litchfield, Microsemi Executive Vice President and President of the Analog Mixed Signal Group. "A controller that helps them to manage costs by simplifying their designs is essential in their highly competitive market. The LX6501 addresses that need directly," he said.
Additional design features of the new lamp controller include:
* The capability to synchronize both the frequency and phase of the lamp current between inverters or to an external synchronization signal; * Enhanced lamp current regulation accuracy and dynamic response at transient conditions; * Comprehensive dimming control of display brightness; * Extensive fault detection including open lamp, over-voltage, short circuit, over-current and over-temperature protection; * A programmable input Under Voltage Lock Out (UVLO) protection circuit to monitor on-chip voltages and shut down the controller if needed.
In addition to LCD TVs, the LX6501 high performance multi-lamp controller is ideal for multi-lamp LCD monitors and supports EEFL and FFL lamps, as well as CCFL backlight systems.
The LX6501 controller is available for immediate sampling in a choice of two 28-pin RoHS compliant and Pb-free surface mount packages, the TSSOP measuring 9.6mm x 6.25mm x 0.85mm, and the SOWB measuring 17.7mm x 10mm x 2.2mm. Technical information is available on the Microsemi web site, http://www.microsemi.com. Samples can be ordered through this site, or from Microsemi sales representatives and authorized distributors. The unit price of either LX6501 is $1.18 in 10K lot quantities.
Microsemi's resonant strike design provides unsurpassed fluorescent lamp striking power combined with highest operating efficiency. All Microsemi CCFL controller designs are protected by U.S. Patents: 5,615,093; 5,923,129; 593,121; 6,198,234; and other patents pending.
About Microsemi Corporation
Microsemi 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, optimizing battery performance, reducing size or protecting circuits. The principal markets the company serves include implantable medical, defense/aerospace and satellite, notebook computers, monitors and LCD TVs, and automotive and mobile connectivity applications. More information may be obtained by contacting the company directly or by visiting its web site at http://www.microsemi.com.
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Investor Inquiries: David R. Sonksen, Microsemi Corporation, Irvine, CA (949) 221-7101.