updated 5/19/2011 3:16:00 AM ET 2011-05-19T07:16:00

IRVINE, Calif., May 19, 2011 (GLOBE NEWSWIRE) -- Microsemi Corporation(Nasdaq:MSCC), a leading provider of semiconductor technology aimed at building a smart, secure, connected world, today announced three families of power modules spanning all major solar converter topologies. The new products include boost-only modules for solar converters with and without transformers, and a family of boost-and-buck modules for three-phase, three-level neutral point clamped (NPC) solar converters.

"Microsemi continues to expand one of the industry's most comprehensive offerings for implementing power factor correction functionality in single- and three-phase solar converters, across input voltages ranging from 5 to 50 kilowatts," said Philippe Dupin, director, Power Module Products, for Microsemi's Power Products Group. "We also continue to offer the industry's only solutions that feature copper base plates, which optimize thermal performance so that solar converters can deliver superior efficiency and convert more of the solar array's energy into usable power. These new offerings enable us to implement a broader range of power conversion functionality across a more diverse array of converter designs."

Microsemi has released nine modules for transformer-based converters, including solutions for the transformer's primary side that combine power factor correction (PFC), bypass diode and phase leg functionality, and solutions for the transformer's secondary side that combine a secondary fast rectifier with a full bridge. The company also has introduced four modules for transformerless solar converters that combine a boost stage with bypass diode and fast full bridge, as well as three modules for three-phase, three-level NPC solar converters that include boost and buck stages to provide an interface between solar panels and the converter's output stage. 

Product Details

Microsemi offers customers a variety of mix-and-match feature options for modules that are tailored for use in the following applications:

  • Transformer-based Solar Converters: For applications on the transformer's primary side, customers have a choice of diodes for the modules' MOSFET boost stage, and can select either standard MOSFETs or those with an improved body diode in the phase leg, which is targeted for use in a phase-shifted or zero voltage switching (ZVS) topology. All devices are housed in a low-profile, low-inductance SP1 package. For the secondary side, Microsemi offers modules in an SP3F package that include a thermal sensor for over-temperature protection plus an IGBT/MOSFET combination for the output bridge. Alternatively, customers can choose an all-IGBT option (trench and field stop) to minimize conduction losses at line frequency, or an all-MOSFET option to maximize bridge efficiency.
  • Transformerless Solar Converters:  Microsemi's new modules combine PFC, bypass diode and full bridge functionality along with a thermal sensor in an SP3F package. For the output bridge, customers can choose an IGBT/MOSFET combination, or specify an all-MOSFET configuration or one that combines trench and Non-Punch-Through (NPT) IGBT switch technology. A choice of CoolMOS or SiC diodes is available for implementing the modules' bypass functionality. 
  • Three-Phase, Three-Level NPC Solar Converters:  Modules are available with 650V/19 mOhms and 600V/24 mOhms MOSFETs and 100A/600V trench and field stop IGBTs, plus a choice of FRED boost diodes or, alternatively, SiC devices that boost the converter's input-stage efficiency while increasing switching frequency. Microsemi's offering spans the complete power chain for three-phase solar converters, from input to output, at power levels up to 20kW.

Microsemi's new power modules extend the power switching portion of the company's solar technology portfolio, which spans FPGAs, DC-DC converters, pulse width modulation (PWM) modules, and analog and mixed signal devices including bypass diodes/switches, MOSFETs, FREDs and IGBTs. The company's products enable the efficient, reliable and cost-sensitive implementation of the entire range of photovoltaic (PV) applications, including power harvesting, power management, power switching and power monitoring. 

Pricing and Availability

All of Microsemi's new solar-converter power modules can be sampled now and are priced as follows in OEM quantities of 1,000:

Modules for Transformer-Based Solar Converters

  • Products
  • Primary Side: APTC60AM45BC1G, APTC60AM45B1G, APTC60AM83BC1G and APTC60AM83B1G
  • Secondary Side: APTCV60HM45RCT3G, APTCV60HM45RT3G, APTCV60HM70RT3G, APTC60HM70RT3G, and APTGT50H60RT3G
  • Pricing: $27.95 to $50.58 depending on device specifications.

Modules for Transformerless Solar Converters

  • Products: APTCV60HM45BC20T3G, APTCV60HM45BT3G, APTCV60HM70BT3G, and APTGV50H60BT3G
  • Pricing: $29.73 to $50.61 depending on device specifications.

Modules for Three-Phase, Three-Level NPC Solar Converters:

  • Products: APT5M65BBM19T3G, APTC60BBM24T3G, and APTGT100BB60T3G
  • Pricing $27.06 to $59.00 depending on device specifications.

About Microsemi

Microsemi Corporation (Nasdaq:MSCC) offers the industry's most comprehensive portfolio of semiconductor technology. Committed to solving the most critical system challenges, Microsemi's products include high-performance, high-reliability analog and RF devices, mixed signal integrated circuits, FPGAs and customizable SoCs, and complete subsystems. Microsemi serves leading system manufacturers around the world in the defense, security, aerospace, enterprise, commercial, and industrial markets. Learn more at http://www.microsemi.com .

The Microsemi Corporation logo is available at http://www.globenewswire.com/newsroom/prs/?pkgid=1233

Microsemi and the Microsemi logo are registered trademarks or trademarks of Microsemi Corporation and/or its affiliates. Third-party trademarks and service marks mentioned are the property of their respective owners.

"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 related to three families of power modules spanning all major solar converter topologies, and its potential effects on future business, 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.

CONTACT: MEDIA CONTACT: Kelly Poffenberger
         Tel: (714) 553-9071

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