ON Semiconductorew Capacitive Touch Control IC Simplifies Design and Reduces Component Count of Touch Sensor Applications

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1 Νοε 2013 (πριν από 4 χρόνια και 11 μέρες)

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New
s
Release


ON Semiconductor
’s N
ew
Capacitive Touch Control

IC Simplifies
Design and Reduces Component Count of Touch Sensor Applications


Compact, integrated device with high sensitivity, rapid response and excellent noise
immunity eliminates software

development and compensates for environmental changes


Nov.
9
, 2012


O
N Semiconductor (Nasdaq:

ONNN
), a premier supplier of high performance silicon
solutions for energy efficient elec
tronics,
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
LC
717A00AR
, 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
LC
717A00AR

uses a
proprietary

differential capacitance detection technology to enable high s
ensitivity 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 detect
ed 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 gl
ass cover is needed

such as washing machines,
refrigerators and cooking appl
iances,” said
Takekiyo

Okumura
,
g
eneral
m
anager
,

of ON
Semiconductor’s SANYO division
.

In addition to integrated anti
-
noise circuitry, the device
automatically compensates for cha
nges in temperature and humidity to
prevent

false touch detection
and operational failure from environmental changes.


As well as operating as a standalone device, the LC
7
17A00AR allows parameters to be modified
using an external microcontroller via a buil
t
-
in serial interface that can be configured for I
2
C or SPI
operation. The device is compatible with a supply voltage of 2.6

volts (
V
)

to 5.5

V and operates with a
typical current consumption of 320

micro
-
amps (
µA
)

at a supply voltage of 2.8

V. Rated opera
ting
temperature is
-
40°C to 105°C.


Package and Price

The LC717A00AR is available in a lead
-
free VCT28 package and budgetary pricing
is
USD
1
.
50
in
quantities of
2
,000.



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

2



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 manufact
uring 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 Semico
nductor 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. Altho
ugh the company references its W
eb

site in this news re
lease, such
information on the W
eb

site is not to be incorporated herein.


Contac
ts


Daisy Sham






Asia Pacific Communications



ON Semiconductor









(852) 2689
-
0156







daisy.sham@onsemi.com