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Capacitive Touch Control IC has high noise immunity.

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November 23, 2012 - Model LC717A00AR capacitance-to-digital converter IC features 8 capacitor sensing inputs and 8 digital outputs. Unit's logic circuit detects on/off state of each input and outputs result, while serial interface can be configured for I˛C or SPI operation, allowing parameters to be modified using external MCU. Compatible with supply voltage of 2.6-5.5 V, IC consumes 320 ľA at 2.8 V. It operates over temperature range of -40 to +105°C and is available in lead-free VCT28 package.

ON Semiconductor's New Capacitive Touch Control IC Simplifies Design and Reduces Component Count of Touch Sensor Applications


(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)

ON Semiconductor
5005 East McDowell Road
Phoenix, AZ, 85008
USA



Press release date: November 8, 2012

Compact, integrated device with high sensitivity, rapid response and excellent noise immunity eliminates software development and compensates for environmental changes

PHOENIX, Ariz. – ON Semiconductor (Nasdaq: ONNN), a premier supplier of high performance silicon solutions for energy efficient electronics, has introduced a highly integrated capacitance-to-digital converter IC that will speed the implementation and reduce the component count of electrostatic capacitance touch sensor applications. The new high-performance LC717A00AR, which is the first in a series of ON Semiconductor touch sensor integrated circuits, simplifies the replacement of mechanical switches with capacitive touch sensors for applications including home appliances, audio/visual equipment, computer peripherals and automotive instrument panels.

Featuring eight capacitor sensing inputs and eight digital outputs, the LC717A00AR uses a proprietary differential capacitance detection technology to enable high sensitivity and high noise resistance. A built-in logic circuit detects the ON/OFF state of each input and outputs the appropriate result without the need for any additional components or control software. Capacitances in the femto Farad order can be detected and touch sensitivity is pre-configured, eliminating the need for complicated sensitivity adjustments.

"Because of its high sensitivity, the LC717A00AR is ideal for applications where users may wear gloves or where an air gap or a thick, protective glass cover is needed such as washing machines, refrigerators and cooking appliances," said Takekiyo Okumura, general manager, of ON Semiconductor's SANYO division. "In addition to integrated anti-noise circuitry, the device automatically compensates for changes in temperature and humidity to prevent false touch detection and operational failure from environmental changes."

As well as operating as a standalone device, the LC17A00AR allows parameters to be modified using an external microcontroller via a built-in serial interface that can be configured for I2C or SPI operation. The device is compatible with a supply voltage of 2.6 volts (V) to 5.5V and operates with a typical current consumption of 320 micro-amps (ľA) at a supply voltage of 2.8 V. Rated operating temperature is -40°C to 105°C.

Package and Price
The LC717A00AR is available in a lead-free VCT28 package and budgetary pricing is $1.50 in quantities of 2,000.

About ON Semiconductor
ON Semiconductor (Nasdaq: 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 www.onsemi.com .

ON Semiconductor acquired SANYO Semiconductor in 2011 and has established the business as a division within the company.

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.

Contacts
Katsuya Ito                                                                          
Media Relations - Japan
ON Semiconductor's SANYO division
+81-(276) 61-8506
Katsuya.Ito@onsemi.com

Anne Spitza
Corporate Communications – Global
ON Semiconductor
+1(602) 244-6398
Anne.spitza@onsemi.com

Ref: ONSPR2650A



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