IS31SE5100-SALS2

IS31SE5100 8-CH CAPACITIVE TOUCH SENSOR WITH AUTO CALIBRATION March 2013 GENERAL DESCRIPTION FEATURES The IS31SE5100 is an ultra low power, fully integrated Complete eight sensors capacitive touch 8-channel solution for capacitive touch-buttons controller for buttons applications. The chip allows electrodes to project Auto offset compensation sense fields through any dielectric such as glass or Sensitivity adjustable by external capacitor or plastic. On-chip calibration logic continuously monitors internal register the environment and automatically adjusts on-and-off Extremely low power optimized for portable threshold levels to prevent false sensor activation. application The IS31SE5100 supports the 400kHz IC serial bus Interrupt output data protocol and includes a field programmable slave 400kHz fast-mode IC interface address. An INTB is generated when a button event 8kV ESD HBM (touched or released) occurs, triggered and cleared Operating temperature T = 40C ~ +85C A condition could be configured by setting the interrupt QFN-24 (4mm 4mm) and SSOP-24 packages register. IS31SE5100 is available in QFN-24 (4mm 4mm) and APPLICATIONS SSOP-24 packages. It operates from 2.7V to 5.5V over the temperature range of -40C to +85C. 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 R resistor should place as close as possible to reduce EMI. S Lumissil Microsystems www.lumissil.com 1 Rev. C, 03/18/2013 IS31SE5100 PIN CONFIGURATION Package Pin Configuration (Top View) GND 1 18 OUT3 VCC 2 17 OUT2 CAP1 3 16 OUT1 QFN-24 CAP2 4 15 SDB CAP3 5 14 INTB CAP4 6 13 SDA OUT6 1 24 OUT5 OUT7 2 23 OUT4 OUT8 3 22 GND GND421 OUT3 VCC 5 20 OUT2 CAP1 6 19 OUT1 SSOP-24 CAP2 7 18 SDB CAP3817 INTB CAP4 9 16 SDA CAP8 10 15 SCL CAP5 11 14 AD CAP6 12 13 CAP7 Lumissil Microsystems www.lumissil.com 2 Rev. C, 03/18/2013 CAP5 7 24 OUT8 CAP6 8 23 OUT7 CAP7 9 22 OUT6 CAP8 10 21 OUT5 AD 11 20 OUT4 SCL 12 19 GND