International Rectifier Introduces 80V and 100V DirectFET(TM) MOSFETs that Reduce 200W Converter Power Loss by 10%.EL SEGUNDO El Segundo (ĕl sēgŭn`dō), industrial city (1990 pop. 15,223), Los Angeles co., S Calif., on Santa Monica Bay; inc. 1917. Its products include navigation and computer systems, aircraft parts, office machines, telephone apparatus, and , Calif. -- International Rectifier International Rectifier Corp. (NYSE: IRF) is a manufacturer of power semiconductors (MOSFET, IGBT, diodes and thyristors), located in El Segundo, California, USA. It has a market capitalization of 2.48 billion USD and is listed on the S&P Midcap 400. , IR(R) (NYSE NYSE See: New York Stock Exchange :IRF IRF Interferon Regulatory Factor IRF International Religious Freedom IRF Institut for Rationel Farmakoterapi (German) IRF Inherited Rights Filter (Novell) IRF Inherited Rights Filter ), a world leader in power management technology, today introduced two DirectFET(TM) power MOSFETs A Power MOSFET is a specific type of Metal Oxide Semiconductor Field-Effect Transistor (MOSFET) designed to handle large powers. Compared to the other power semiconductor devices (IGBT, Thyristor... that reduce system-level power loss as much as 10% versus "enhanced SO-8" devices in medium power 200W DC-DC DC-DC Direct Current to Direct Current (power conversion) bus converter applications commonly found in networking and communications systems In telecommunication, a communications system is a collection of individual communications networks, transmission systems, relay stations, tributary stations, and data terminal equipment (DTE) usually capable of interconnection and interoperation to form an integrated whole. . The low combined on-state resistance and gate charge makes the new IRF6668 80V and IRF6662 100V DirectFET MOSFETs ideal primary-side power switches for high efficiency isolated DC-DC bus converters. "Isolated DC-DC bus converters power today's ASICs, NPUs and FPGAs in advanced networking and communications systems. The IRF6668 and IRF6662 can be used with IR's low voltage Low voltage is an electrical engineering term that broadly identifies safety considerations of an electricity supply system based on the voltage used. While different definitions exist for the exact voltage range covered by "low voltage", the most commonly used ones include "mains DirectFET MOSFETs and DC bus converter control ICs to create a complete and optimized chip set solution for medium-power isolated bus converters," said Carl Smith, Marketing Manager for Networking and Telecommunication Products at International Rectifier. When the IRF6662 or IRF6668 are used on the primary side of an unregulated 48V input, 8V output, 200W isolated converter the power density of 97W per square inch can be increased an additional 15%. This is enabled by taking advantage of the dual-sided cooling capability of the DirectFET MOSFET (Metal Oxide Semiconductor Field Effect Transistor) The most popular and widely used type of field effect transistor (see FET). MOSFETs are either NMOS (n-channel) or PMOS (p-channel) transistors, which are fabricated as individually packaged packaging technology with the addition of a heat sink A material that absorbs heat. Typically made of aluminum, heat sinks are widely used in amplifiers and other electronic devices that build up heat. Small heat sinks are the most economical method for cooling microprocessors and other chips. . The 100V IRF6662 has a 4% reduction in device on-resistance compared to competing enhanced SO-8 MOSFETs and a 30% better performance figure-of-merit for combined on-state resistance and gate charge compared to competing enhanced SO-8 devices in 36V to 75V input, 8V output, 200W, 220kHz half-bridge DC bus converter. The 80V IRF6668 has 10% better on-state resistance and 30% better total gate charge, resulting in a 40% better performance figure-of-merit for combined on-state resistance and gate charge compared to competing enhanced SO-8 MOSFETs, enabling up to 10% additional output current in 48V input, 8V output, 200W, 220kHz half-bridge DC bus converter. The new DirectFET MOSFETs can be used in either half-bridge DC bus topologies with the IR2085S or in full-bridge DC bus topologies with IR2086S, coupled with secondary-side low voltage DirectFET MOSFETs like the IRF6635 for a complete, high efficiency solution. Patented DirectFET(TM) Packaging Technology International Rectifier's patented DirectFET MOSFET packages present a whole new set of design advantages not previously delivered by standard plastic discrete packages. Their metal can construction enables dual-side cooling that effectively doubles the current handling capacity of high frequency DC-DC buck converters powering advanced microprocessors. In addition, devices in the DirectFET package are compliant with the Restriction of Hazardous Substances Directive The Directive on the Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment 2002/95/EC[1] (commonly referred to as the Restriction of Hazardous Substances Directive or RoHS (RoHS). Data sheets for these devices are available on the International Rectifier Web site:
IRF6668, 80V DirectFET MOSFET
http://www.irf.com/product-info/datasheets/data/irf6668.pdf
IRF6662, 100V DirectFET MOSFET
http://www.irf.com/product-info/datasheets/data/irf6662.pdf
Design Tools and Application Notes AN-1035 - Board Mounting Guidelines for DirectFET(TM) MOSFETs AN-1050 - Materials & Practices for DirectFET(TM) MOSFETs AN-1059 - Thermal modeling and Characterization for DirectFET(TM) MOSFETs The DirectFET online Discovery Center gives designers a deeper understanding of how to use the unique advantages of DirectFET devices and how they increase electrical and thermal performance. Go to http://www.irf.com/product-info/directfet/dfdiscovery/. Availability and Pricing The 100V IRF6662 and the 80V IRF6668 DirectFET MOSFETs are available immediately. Pricing is US $0.99 each for either device, both in 10,000-unit quantities. Prices are subject to change. About International Rectifier International Rectifier (NYSE:IRF) is a world leader in power management technology. IR's analog and mixed signal ICs, advanced circuit devices, integrated power systems and components enable high performance computing and reduce energy waste from motors, the world's single largest consumer of electricity. Leading manufacturers of computers, energy efficient appliances, lighting, automobiles, satellites, aircraft and defense systems rely on IR's power management benchmarks to power their next generation products. For more information, go to www.irf.com. Patent and Trademark Notice IR's proprietary DirectFET(TM) technology is covered by US Patents 6624522, 6784540 and multiple other US and foreign pending patent applications. DirectFET is a trademark of International Rectifier Corporation. IR(R) and HEXFET HEXFET Hexagonal Field Effect Transistor (R) are registered trademarks of International Rectifier Corporation. All other product names noted herein may be trademarks of their respective holders. |
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