IR's New Mid-Power SmartRectifier(TM) IC Boosts Overall System Efficiency One Percent Using 75 Percent Fewer Components.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 IR1166 SmartRectifier IC for AC-DC power converters used in 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, home theater audio, motor drive, and other digital computing and home entertainment systems. Enabling smaller and cooler supplies, the eight-pin IR1166 IC simplifies the design of mid-power secondary synchronous rectification (SR) circuits of resonant half-bridge converters and flyback converters designed for 50-150W discontinuous conduction mode (DCM DCM abbr. Distinguished Conduct Medal ), critical conduction mode (CrCM), and continuous conduction mode (CCM). "IR's new SmartRectifier IC uses a new technique for precise, direct sensing of voltage thresholds across the SR MOSFETs, allowing fast, accurate control to minimize power losses in mid-power flyback The term “flyback” may refer to
"Compared to discrete solutions, IR1166S increases overall system efficiency by one percent while using 75 percent fewer components, and allowing a 25 percent reduction in SR system cost," Battello added. The IR1166 SmartRectifier IC works independently from the primary control and enables synchronous rectification so it can be used in a variety of transformer switching modes and applications with capacitive output filters. Furthermore, when "burst mode" occurs on the primary side, the secondary side remains unaffected, complying with 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] and "1W Standby." Optimized Chipset Solution This new device, based on IR's proprietary high voltage IC (HVIC HVIC High-Voltage Integrated Circuit ) technology, is compatible with all 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 gate types, and offers a direct connection to a wide range of 40V to 200V SR MOSFETs. When used with IR's standard and logic-level HEXFET HEXFET Hexagonal Field Effect Transistor [R] power MOSFETs, the new IC reduces losses dissipated in the SR MOSFET by 50 percent, reducing the number of MOSFETs needed in the circuit or enabling the use of smaller packages, such as surface mount SO-8 parts. These optimized MOSFETs work with the IR1166 to create a "total chipset solution" to further maximize efficiency and power density in SR circuits. In addition to the SmartRectifier IC, there will be an IRAC IRAC Infrared Array Camera IRAC Interdepartment Radio Advisory Committee IRAC Issue, Rule, Application, Conclusion (legal writing) IRAC Indochina Refugee Action Center IRAC Interim Rapid Action Change 1166-100W 100W flyback converter reference design available that operates in CrCM. This reference design demonstrates the SmartRectifier features by resolving the output rectification function using a combination of one IR1166SPbF IC and two IRF7853 (SR) MOSFETs in parallel. The entire solution uses only three SO-8 packages for low-side output rectification and requires no heatsink. The new IC is available immediately in an SO-8 package and soon in DIP-8 package, which are both 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 available on the Web at http://www.irf.com/whats-new/nr061023.html, SmartRectifier online design software is available on IR's myPower website (http://mypower.irf.com). Designers simply enter application conditions and performance requirements to obtain recommended IC and MOSFET chipsets that can then be sorted by performance and system cost. Daughter cards are also available that offer a fast and simple way to compare the efficiency and simplicity of IR's SmartRectifier solution to alternative design approaches in existing designs. Availability and Pricing Unit pricing is US $0.70 each for the IR1166SPbF, IR1166STRPbF and IR1166PbF, in 10,000-unit quantities. Production quantities are available immediately. 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([R]) and SmartRectifier[TM] are trademarks of International Rectifier Corporation. All other product names noted herein may be trademarks of their respective holders. |
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