International Rectifier Introduces 100V-Rated Integrated MOSFET Solution for PoE Applications Slashing Footprint Up To 80%.EL SEGUNDO, Calif. -- International Rectifier, IR(r) (NYSE NYSE See: New York Stock Exchange :IRF), a world leader in power management technology, today introduced the IRF4000, a 100V-rated device integrating four HEXFET HEXFET Hexagonal Field Effect Transistor (r) MOSFETs into a single Power MLP (Meridian Lossless Packing) The compression technique used in DVD-Audio that provides the highest audio quality. It delivers two channels at 192 kHz with 24-bit samples or six channels at 96 kHz. package for Power-over-Ethernet (PoE) applications. The new device complies to the IEEE (Institute of Electrical and Electronics Engineers, New York, www.ieee.org) A membership organization that includes engineers, scientists and students in electronics and allied fields. 802.3af specification for networking and communications infrastructure systems, such as Ethernet switches, routers and hubs, delivering up to 15W per port, replacing four individual SOT-223-packaged MOSFETs. The reduced footprint equates to a space savings of up to 80%, or three square inches of circuit board area in a typical 48-port board. "Considering that each port in a PoE card requires its own 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 , the IRF4000 significantly reduces part count over the alternative of using individual MOSFETs in the same circuit. Manufacturing can also be simplified, eliminating 36 component insertions in a 48-port system," said Carl Smith, marketing manager for networking and telecommunication products at International Rectifier. The IEEE 802.3af specification outlines power delivery requirements from the power sourcing equipment (PSE PSE 1. pale soft exudative pork. 2. portosystemic encephalopathy. ) through the LAN (Local Area Network) A communications network that serves users within a confined geographical area. The "clients" are the user's workstations typically running Windows, although Mac and Linux clients are also used. cable to the powered device (PD) in a networking system. The MOSFET operates like a hot-swap FET FET: see transistor. (Field Effect Transistor) One of two major categories of transistor; the other is bipolar. FETs use a gate element that, when charged, creates an electromagnetic field that changes the conductivity of a silicon , transferring power from the PSE to the PD in a controlled fashion, and must operate in the linear region through a demanding worst-case operating condition therefore requiring an extremely robust safe operating area For power semiconductor device (such as BJT, MOSFET, thyristor or IGBT) a safe operating area (SOA) is defined as the voltage and current conditions over which the device can be expected to operate without self-damage. (SOA). The low transconductance silicon technology used in the IRF4000 combines with about 1 degree C/W package thermal resistance to enable efficient removal of heat while operating in the linear region and has been fully electrically and thermally characterized under worst case IEEE 802.3af operating conditions. The new device guarantees a 56% higher device safe operating area compared to individual SOT-223 MOSFETs, improving system reliability and thermal margin. In addition to 48-port systems, the IRF4000 is ideal for 96-port applications or for smaller PoE "jack companion" modules using 12-ports where, in each case, four ports can be addressed with a single IRF4000 device. The new device is qualified to industrial moisture sensitivity level Moisture Sensitivity Level relates to the packaging and handling precautions for some semiconductors. The MSL is an electronic standard for the time period in which a moisture sensitive device can be exposed to ambient room conditions (approximately 30°C/60%RH). (MSL) 3. In addition to the IEEE 802.3af specification, the IRF4000 is compliant with the upcoming PoE Plus architecture for high power loads. More information is posted on the International Rectifier Web site: http://www.irf.com/whats-new/nr051220.html Availability and Pricing The new IRF4000 is available now. Pricing is US $2.00 each in 10,000-unit quantity. 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. Trademark Notice IR(r) and HEXFET(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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