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Integrated Silicon Solution Electronic Components Datasheet

IS31SE5100 Datasheet

8-CH CAPACITIVE TOUCH SENSOR

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IS31SE5100
8-CH CAPACITIVE TOUCH SENSOR WITH AUTO CALIBRATION
March 2013
GENERAL DESCRIPTION
The IS31SE5100 is an ultra low power, fully integrated
8-channel solution for capacitive touch-buttons
applications. The chip allows electrodes to project
sense fields through any dielectric such as glass or
plastic. On-chip calibration logic continuously monitors
the environment and automatically adjusts on-and-off
threshold levels to prevent false sensor activation.
The IS31SE5100 supports the 400kHz I²C serial bus
data protocol and includes a field programmable slave
address. An INTB is generated when a button event
(touched or released) occurs, triggered and cleared
condition could be configured by setting the interrupt
register.
IS31SE5100 is available in QFN-24 (4mm × 4mm) and
SSOP-24 packages. It operates from 2.7V to 5.5V over
the temperature range of -40°C to +85°C.
FEATURES
Complete eight sensors capacitive touch
controller for buttons
Auto offset compensation
Sensitivity adjustable by external capacitor or
internal register
Extremely low power optimized for portable
application
Interrupt output
400kHz fast-mode I²C interface
8kV ESD HBM
Operating temperature TA = 40°C ~ +85°C
QFN-24 (4mm × 4mm) and SSOP-24 packages
APPLICATIONS
Mobile phones
GPS
PDAs
TYPICAL APPLICATION CIRCUIT
Figure 1 Typical Application Circuit
Note 1: The IC should be placed far away from the mobile antenna in order to prevent the EMI.
Note 2: The RS resistor should place as close as possible to reduce EMI.
Integrated Silicon Solution, Inc. – www.issi.com
Rev. C, 03/18/2013
1


Integrated Silicon Solution Electronic Components Datasheet

IS31SE5100 Datasheet

8-CH CAPACITIVE TOUCH SENSOR

No Preview Available !

IS31SE5100
PIN CONFIGURATION
Package
Pin Configuration (Top View)
QFN-24
GND 1
VCC 2
CAP1 3
CAP2 4
CAP3 5
CAP4 6
18 OUT3
17 OUT2
16 OUT1
15 SDB
14 INTB
13 SDA
SSOP-24
OUT6
OUT7
OUT8
GND
VCC
CAP1
CAP2
CAP3
CAP4
CAP8
CAP5
CAP6
1
2
3
4
5
6
7
8
9
10
11
12
24 OUT5
23 OUT4
22 GND
21 OUT3
20 OUT2
19 OUT1
18 SDB
17 INTB
16 SDA
15 SCL
14 AD
13 CAP7
Integrated Silicon Solution, Inc. – www.issi.com
Rev. C, 03/18/2013
2


Part Number IS31SE5100
Description 8-CH CAPACITIVE TOUCH SENSOR
Maker ISSI
Total Page 13 Pages
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