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ON Semiconductor Introduces Highest Efficiency Charge Pump with Power Saving CABC Mode for Smartphone LED Backlighting

^{Published on 2010-11-22 05:10:26 - Market Wire}
 

PHOENIX--([ BUSINESS WIRE ])--ON Semiconductor (Nasdaq: [ ONNN ]), a premier supplier of high performance silicon solutions for energy efficient electronics, has introduced the [ CAT3649, a 6-channel, high efficiency Quad-ModeŽ LED driver ] for use in the latest smartphones and other consumer handheld applications such as digital still cameras and portable media players. The Quad-ModeŽ architecture coupled with Content Adaptive Brightness Control (CABC) ensures market leading efficiency in LED backlighting using only external capacitors.

"With new feature-rich consumer products like smartphones utilizing larger displays, greater demands are being placed upon their batteries to provide longer periods between recharges"

aWith new feature-rich consumer products like smartphones utilizing larger displays, greater demands are being placed upon their batteries to provide longer periods between recharges,a said Anthony Russell, director of LED Power Products at ON Semiconductor. aThe powerful combination of high efficiency, PWM (pulse width modulation) dimming, CABC and filtering capabilities makes the CAT3649 truly unique within the industry.a

Differentiating itself from other devices currently on the market, the highly efficient CAT3649 has a total of four charge pump modes (1x, 1.33x, 1.5x and 2x), rather than the customary three. The inclusion of a 1.33x mode increases its efficiency by up to 10 percent compared to traditional charge pump LED drivers using 1.5x operation. This allows the handheld products into which it is incorporated to greatly extend their battery life.

This Quad-ModeŽ fractional charge pump supports a wide range of input voltages, from 2.4 volts (V) to 5.5 V. The LED current can be adjusted by analog dimming in 32 linear increments via the 1-wire interface. Further adjustment can be carried out through PWM. The PWM dimming control is compatible with CABC for PWM signal frequencies from 100 hertz (Hz) to 200 kilohertz (kHz).

Packaging and Pricing

The CAT3649 is offered in a compact 3.0 mm x 3.0 mm, Pba'free TQFNa'16 package. Pricing for these devices is $0.49 per unit in 100,000 unit quantities.

For more information, please visit [ http://www.onsemi.com ].

About ON Semiconductor

ON Semiconductor (ONNN) is a premier supplier of high performance silicon solutions for energy efficient electronics. The company's broad portfolio of power and signal management, logic, discrete and custom devices helps customers efficiently solve their design challenges in [ automotive, communications, computing, consumer, industrial, LED lighting, medical, military/aerospace and power applications. ] ON Semiconductor operates a world-class, value-added supply chain and a network of manufacturing facilities, sales offices and design centers in key markets throughout North America, Europe, and the Asia Pacific regions. For more information, visit [ http://www.onsemi.com ].

ON Semiconductor, and the ON Semiconductor logo are registered trademarks of Semiconductor Components Industries, LLC. All other brand and product names appearing in this document are registered trademarks or trademarks of their respective holders. Although the company references its Web site in this news release, such information on the Web site is not to be incorporated herein.