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IR Introduces Industrya?s First PFC and Ballast Control IC Integrated in an 8-Pin SO-8 Package for Energy Efficient Lighting Ap

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  Published in Science and Technology on Thursday, May 12th 2011 at 6:06 GMT by Market Wire
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EL SEGUNDO, Calif.--([ BUSINESS WIRE ])--International Rectifier, IR^® (NYSE:IRF), a world leader in power management technology, today introduced the industrya™s first IC to integrate power factor correction (PFC) and ballast control in a single compact 8-pin SO-8 package. The new IRS2580DS Combo8 IC simplifies design and reduces overall component count to speed up design in energy efficient lighting applications.

The IRS2580DS includes a boost converter control circuit operating in critical-conduction free-running frequency mode to provide power factor correction with ultra-low THD. The new IC also includes a 600 V half-bridge control circuit working at 50 percent duty-cycle and variable frequency for driving the resonant mode lamp output circuit.

aUnlike alternative approaches, the IRS2580DS Combo8 IC offers excellent PFC performance, a high degree of accuracy and ultra-low THD across a wide line and load range in a single 8-pin package. Furthermore, because two of the eight pins are the primary control pins for the complete ballast, it provides a simple solution with reduced component count that significantly speeds up design time,a said Tom Ribarich, IRa™s director, Lighting Systems and Applications, Energy Saving Products Business Unit.

Complete fault protection circuitry is also included for protection against such conditions as mains interrupt or brown-out, lamp non-strike, lamp filament failure and end-of-life. The IRS2580DS requires only two primary control pins to perform all of the necessary ballast functions. These functions include an analog voltage-to-frequency input pin for programming the different operating frequencies for preheating, igniting and running the lamp, and a PWM output pin for controlling the on and off times during each switching cycle of the PFC boost converter.

More information is available on the International Rectifier website at [ http://www.irf.com/whats-new/nr110512.html ]

Availability and Pricing

Pricing for the IRS2580DS begins at US $1.05 each in quantities of 10,000-units. Production quantities are available immediately. The devices are lead free and RoHS compliant. Prices are subject to change.

About International Rectifier

International Rectifier (NYSE:IRF) is a world leader in power management technology. IRa™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 worlda™s single largest consumer of electricity. Leading manufacturers of computers, energy-efficient appliances, lighting, automobiles, satellites, aircraft, and defense systems rely on IRa™s power-management benchmarks to power their next generation products. For more information, go to [ www.irf.com ].

Trademark Notice

IR^® is a registered trademark of International Rectifier Corporation. All other product names noted herein may be trademarks of their respective holders.