IR's New SmartRectifier IC Slashes Parts Count by 75 Percent, Reduces MOSFET Temperature by 10 Degrees with 1% Increase in System Efficiency.EL SEGUNDO, Calif. -- International Rectifier, 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 the IR1167 SmartRectifier(tm) IC for AC-DC power converters for laptops, mini-PCs, LCD and PDP (1) (Plasma Display Panel) See plasma display. (2) (Policy Decision Point) See COPS and XACML. (3) (Programmed Data P televisions, game systems and other digital computing and home entertainment systems. The SmartRectifier IC simplifies and improves efficiency in secondary synchronous rectification (SR) in high power flyback The term “flyback” may refer to
"In 100W to 300W flyback circuits, traditional complex and bulky current transformer control circuits waste energy because large reversing currents are required to sense polarity shifts through the SR MOSFETs. In contrast, IR's new SmartRectifier IC employs a new technique for precise, direct sensing of voltage thresholds across the SR MOSFETs, allowing fast, accurate control to minimize power losses," said Stephen Oliver, marketing manager at International Rectifier. "The IR1167 can increase overall system efficiency by 1 percent and reduce 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 temperature by 10 degrees, while slashing SR parts count by 75 percent," Oliver added. The IR1167 SmartRectifier IC uses IR's proprietary HVIC HVIC High-Voltage Integrated Circuit technology, making it compatible with all MOSFET gate types and offers direct connection to IR's wide range of 30V to 200V SR MOSFETs. The benefits of the IR1167 SmartRectifier IC are further enhanced when used with IR's MOSFETs featuring optimized on-resistance and gate charge characteristics, such as the IRF7853, IRFB IRFB International Rugby Football Board (Ireland) 4110 and IRFB4227. These optimized MOSFETs work with the IR1167 as a "total chip set solution" to further maximize efficiency and power density in SR circuits. Since the new IC works independently from the primary control, it can be used in a variety of transformer switching modes and applications with capacitive output filters. Independence from the primary side means that the IR1167 operates in low power "burst modes" to enable "1W Standby," and California Energy Commission The California Energy Commission is California’s primary energy policy and planning agency. Created in 1974 and headquartered in Sacramento, the Commission has responsibility for activities that include forecasting future energy needs, promoting energy efficiency through (CEC (Central Electronic Complex) The set of hardware that defines a mainframe, which includes the CPU(s), memory, channels, controllers and power supplies included in the box. Some CECs, such as IBM's Multiprise 2000 and 3000, include data storage devices as well. ) 80Plus(tm) compliance. "Previously, synchronous rectification in resonant half-bridge topologies has not been commercially viable due to the complexity of varying system frequency and low standby power regulations. Here, the IR1167 enables simple SR for a major boost in system efficiency," Oliver added. The SmartRectifier technique halves the losses dissipated in the SR MOSFET. This reduces the number of MOSFETs needed or allows a change from large TO-220 packages to small, surface mount SO-8 parts. The IC is available in either SO-8 or DIP-8 packages which are lead-free (PbF) and 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). Design Tools In addition to data sheets, application notes and technical papers, new SmartRectifier online design software is now available on IR's myPower site (http://www.irf.com/design-center/mypower/). Designers enter application conditions and performance requirements to obtain recommended IC and MOSFET chip sets which can be sorted by performance and system cost. Daughter cards are available which offer a fast and simple way to compare efficiency and simplicity of IR's SmartRectifier solution versus diode designs and complex SR solutions. For more information, go to http://www.irf.com/whats-new/nr060309.html Availability and Pricing Samples are available through product marketing. Pricing is U.S. $1.08 each for the IR1167A/BSPbF and U.S. $1.11 each for the IR1167A/BPbF, each in 10,000-unit quantity. Pricing is 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), HEXFET HEXFET Hexagonal Field Effect Transistor (r) and SmartRectifier(tm) are registered trademarks or trademarks of International Rectifier Corporation. All other product names noted herein may be trademarks of their respective holders. |
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