Document
IQ Switch® ProxSense® Series
IQS213/A Datasheet
IQSwitch® - ProxSense® Series 3-Channel Capacitive Touch/Swipe Function Controller
Overview
Unparalleled Features Sub 5µA* current consumption (“Zero-Power” electronic switch). Internal Capacitor Implementation (ICI) – Reference capacitor on-chip Automatic Tuning Implementation (ATI) - Automatic tuning for optimal operation in various
environments & compensation against sensitivity reducing objects IQS213A advised for applications with high load-capacitances and high sensitivity
requirements.
The IQS213(A) ProxSense® IC is a fully integrated two or three channel capacitive swipe function sensor with market leading sensitivity and automatic tuning of the sense electrodes. The IQS213(A) provides a minimalist implementation requiring few external components, with OTPoption settings and an I2C-compatible interface that allow configuration for numerous applications.
Main Features
2 or 3 Channel (Projected or Self Capacitance) Input device Swipe Function or Differentiated Touch and Distributed Proximity Electrode Implementation Variable User Interface with Adjustable Swipe Function Configuration Auto-Off and Advanced Auto-Off Warning Function Supply voltage: 1.8V to 3.6V Internal voltage regulator and reference capacitor Advanced on-chip digital signal processing OTP (One Time Programmable) options available I2C compatible interface Low Power Modes (sub 4µA*) Variable Proximity & Touch Thresholds Small outline MSOP-10 package
Applications
Sanitary ware, toys, office equipment Flashlights, headlamps, keychain lights Splash- / waterproof devices Swipe-to-Unlock / Wake from Standby applications Replacement for electro-mechanical switches
Advantages
Prevents accidental activation of conventional touch sensors Improved digital filtering to reduce external noise High immunity against aqueous substances Highly adjustable device with continuous data or event driven I2C communication
Available options
TA -40°C to 85°C
MSOP10 IQS213A / IQS213
*Current consumption dependant on selected Low Power settings.
Copyright © Azoteq (Pty) Ltd 2011 All Rights Reserved
IQS213A (IQS213) Datasheet Revision 2.1
Page 1 of 46 March 2014
IQ Switch®
ProxSense® Series
Contents
OVERVIEW ..........................................................1
1 FUNCTIONAL OVERVIEW ..........................3
1.1 APPLICABILITY............................................... 3
2 ANALOGUE FUNCTIONALITY ...................3
3 DIGITAL FUNCTIONALITY .........................3
4 HARDWARE CONFIGURATION.................4
4.1 IQS213A (IQS213) - MSOP10 PIN-OUT ....... 4 4.2 REFERENCE DESIGN ...................................... 5
4.2.2 Power Supply and PCB Layout .............. 5 4.2.3 Design Rules for Harsh EMC Environments ...................................................... 6 4.2.4 High Sensitivity....................................... 6
5 USER CONFIGURABLE OPTIONS ............7
5.1 CONFIGURIN.