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IRa?s IRS2548D LED Control IC Increases Efficiency, Simplifies Design and Reduces Overall System Cost

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^{Published in Science and Technology on Thursday, April 14th 2011 at 6:10 GMT by Market Wire}  

EL SEGUNDO, Calif.--([ BUSINESS WIRE ])--International Rectifier, IR^® (NYSE:IRF), a world leader in power management technology, today introduced the IRS2548D Switched Mode Power Supply (SMPS) control IC for energy efficient applications for high power Light Emitting Diode (LED) illumination including LED street lighting, stadium lighting and theatrical lighting.

"By incorporating both control stages into a single IC, the new IRS2548D provides an integrated solution for LED power supplies that simplifies design and helps reduce overall system cost, while providing significant energy savings"

The IRS2548D, which combines Power Factor Correction (PFC) and half-bridge driver in a single IC offers greater than 88 percent efficiency for a 40 V / 1.3 A HBLED load to deliver a higher efficiency solution compared to alternative flyback converter solutions at power levels above 60 W.

aBy incorporating both control stages into a single IC, the new IRS2548D provides an integrated solution for LED power supplies that simplifies design and helps reduce overall system cost, while providing significant energy savings,a said, Peter Green, LED Group Manager, IRa™s Energy Saving Products Business Unit.

The new device achieves PWM dimming down to less than 2 percent light output and offers protection features that include programmable PFC and half-bridge over-current protection, latch immunity, and ESD protection. The IRS2548D also includes variable frequency oscillator, fixed internal 1.6us deadtime, internal bootstrap MOSFET, internal 15.6V zener clamp diode on Vcc, and micropower startup (250A).

More information is available on the International Rectifier website at [ http://www.irf.com/whats-new/nr110414.html ].

Availability and Pricing

Pricing for the IRS2548D begins at US $1.45 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.