Status Prod
Vin(V) 2.7-5.5
Document Eval Board
Pkg-Pin(mm) QFN-16 SSOP-16
Sensor Type Capacitive Touch
No. Channels 4 Cap Touch Input 4 LED Drive Output
Part Number 5104 = 5104
Product Family 31 = Commercial/Industrial Analog
Product Type SE = Sensor
Package option blank = Tray or Tube

IS31SE5104 Features

  • Four capacitive touch sensor controller Auto offset compensation Sensitivity adjustable with external capacitor or internal register Low power optimized for portable applications Interrupt output 400kHz fast-mode I²C interface 8kV ESD HBM
  • Operating temperature TA = −40°C ~ +85°C
  • QFN-16 (3mm × 3mm) and SOP-16 packages
  • Mobile phones
  • GPS


The IS31SE5104 is a low power, fully integrated 4-channel solution for capacitive touch button 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 IS31SE5104 supports the 400kHz I²C serial bus data protocol and includes a field programmable slave address. An active low interrupt signal is generated on the INTB pin whenever a button event (touched or released) is detected. The triggered and cleared condition can be configured by setting the interrupt register. IS31SE5104 is available in either a QFN-16 (3mm × 3mm) or SOP-16 package. It operates from 2.7V to 5.5V over the temperature range of -40°C to +85°C.


Related Part Number(s)

Description Stock Qty Available Qty Description Stock Qty Available Qty
IS31SE5104-GRLS2 IS31SE5104-QFLS2-TR