Microsemi One-Port Power-over-Ethernet Manager Delivers 51 Watts With Full IEEE802.3at-2009 Compliance

Advanced Controller for Ethernet Switches and Midspans Can Deliver Up to 75 Watts Using Dual Devices


IRVINE, Calif., April 26, 2010 (GLOBE NEWSWIRE) -- Microsemi Corporation (Nasdaq:MSCC), a leading manufacturer of high performance analog/mixed signal integrated circuits and high reliability semiconductors, today announced a one-port Power-over-Ethernet manager capable of delivering 51 watts to powered devices while still complying with stringent IEEE802.3at-2009 requirements. System designers also can go well beyond the IEEE standard to safely deliver up to 75W of power by using two of the new Microsemi PoE chipset devices over four pairs of Ethernet cable.

The IEEE802.3at-2009 standard defines sourcing of 30W over two pairs of Ethernet cable, guaranteeing delivery of 25.5W to powered devices across distances of up to 100m.The standard does not preclude delivering power over all 4-pairs in a CAT5 cable. Thus, the PD69101 enables customers to build four-pair PSEs that can deliver 51W of fully standards-compliant power to a PD.

Microsemi's new PD69101 PoE manager can be used to develop a wide variety of power sourcing equipment including switches, routers and specialized platforms including PoE-enabled TVs and set-top boxes. These platforms can be used to cost-effectively provide higher levels of managed power to a broader range of Ethernet devices in small-office, home-office and residential applications including WiMAX transmitters, pan-tilt-zoom cameras, fiber-to-the-home optical network terminators and outdoor xDSL/cable modems.

The PD69101 requires only 10 external components to create a complete PoE solution. Its synchronous four-pair implementation cuts the component count of front-end PoE PD designs in half, compared to alternative asynchronous four-pair solutions.

The PD69101 includes the advanced features of Microsemi's IEEE802.3at-compliant single-port PD64001 and other multi-port PSE PoE manager solutions, including detection of pre-standard devices, direct LED-driving capabilities, and two-event classification, which removes the need for LLDP software. Microsemi's PD69101-based solutions dissipate half the power of alternative solutions -- 0.58W in standard-power IEEE802.3.af mode and 0.79W in high-power 2-pairsIEEE802.3at operating mode.

"The PD69101 allows manufacturers to build IEEE802.3at-compliant Ethernet switches without the need for any special software configuration," said Daniel Feldman, Director of Marketing, Power over Ethernet, at Microsemi. "With its extremely small footprint and streamlined system component requirements, the PD69101 is a breakthrough in simplicity, affordability and power efficiency."

Supporting a guaranteed maximum current of 1000mA, more than the 600mA defined in IEEE802.3at-2009, the PD69101 manager enables manufacturers to build switches that can drive devices consuming up to 37.5W with 2-pairs or 75W with 4-pairs over CAT5e cables.

"Early adopters of the PD9501G and PD-AS-951 have validated market need for PoE solutions that can drive more than 25.5W," said Feldman. "Now switch manufacturers can address the market desire for higher power with the PD69101. In addition to the new PD69101 programs, it is significant that we have also seen continued success in our traditional multi-port market on new IEEE802.3at-2009-compliant switches, many of them ramping up into production."

A complete listing of certified products that are compatible with Microsemi PoE ICs and midspans can be found at http://www.microsemi.com/PowerDsine/Products/SelectionGuide_High.asp.

Product Availability

The PD69101 is sampling now and will enter volume production in the third quarter of 2010. It is packaged in a QFN24 and priced at $2.09 in volumes of 6K. Microsemi has also introduced a PD-IM-7401 evaluation board, which is available now and demonstrates the PD69101 device's functionality. 

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, high reliability semiconductors and RF subsystems. 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 www.globenewswire.com/newsroom/ctr%3Fd=181116%26amp;l=4%26amp;u=http%253A%252F%252Fwww.%20">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 a one-port Power-over-Ethernet manager capable of delivering 51 watts to powered devices while still complying with stringent IEEE802.3at-2009 requirements, 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.



            

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