|
IS31SE5100 Datasheet, PDF (1/13 Pages) Integrated Silicon Solution, Inc – 8-CH CAPACITIVE TOUCH SENSOR WITH AUTO CALIBRATION | |||
|
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 à 4mm) and
SSOP-24 packages. It operates from 2.7V to 5.5V over
the temperature range of -40°C to +85°C.
FEATURES
ï· Complete eight sensors capacitive touch
controller for buttons
ï· Auto offset compensation
ï· Sensitivity adjustable by external capacitor or
internal register
ï· Extremely low power optimized for portable
application
ï· Interrupt output
ï· 400kHz fast-mode I²C interface
ï· 8kV ESD HBM
ï· Operating temperature TA = â40°C ~ +85°C
ï· QFN-24 (4mm à 4mm) and SSOP-24 packages
APPLICATIONS
ï· Mobile phones
ï· GPS
ï· 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. â www.issi.com
1
Rev. C, 03/18/2013
|
▷ |