IS31SE5104-GRLS2 ISSI

IS31SE5104 4-CH CAPACITIVE TOUCH SENSOR WITH AUTO CALIBRATION August 2015 GENERAL DESCRIPTION FEATURES The IS31SE5104 is a low power, fully integrated Four capacitive touch sensor controller 4-channel solution for capacitive touch button Auto offset compensation applications. The chip allows electrodes to project Sensitivity adjustable with external capacitor or sense fields through any dielectric such as glass or internal register plastic. On-chip calibration logic continuously monitors Low power optimized for portable applications the environment and automatically adjusts on-and-off Interrupt output threshold levels to prevent false sensor activation. 400kHz fast-mode IC interface The IS31SE5104 supports the 400kHz IC serial bus 8kV ESD HBM data protocol and includes a field programmable slave Operating temperature T = 40C ~ +85C A address. An active low interrupt signal is generated on QFN-16 (3mm 3mm) and SOP-16 packages the INTB pin whenever a button event (touched or released) is detected. The triggered and cleared condition can be configured by setting the interrupt APPLICATIONS register. Mobile phones IS31SE5104 is available in either a QFN-16 (3mm GPS 3mm) or SOP-16 package. It operates from 2.7V to PDAs 5.5V over the temperature range of -40C to +85C. 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 Note 3: The OUTx pin is open drain structure inside. To configure the OUTx pin as a logic signal output use a 100k pull up resistor. Lumissil Microsystems www.lumissil.com 1 Rev. C, 08/05/2015 IS31SE5104 PIN CONFIGURATION Package Pin Configuration (Top View) SOP-16 QFN-16 Lumissil Microsystems www.lumissil.com 2 Rev. C, 08/05/2015 CAP4 GND 5 16 SCL OUT4 6 15 AD GND 7 14 SDA OUT3 8 13