CAP1133 3 Channel Capacitive Touch Sensor with 3 LED Drivers Datasheet PRODUCT FEATURES General Description Applications 1 The CAP1133, which incorporates SMSCs RightTouch Desktop and Notebook PCs technology, is a multiple channel Capacitive Touch sensor LCD Monitors with multiple power LED drivers. It contains three (3) Consumer Electronics individual capacitive touch sensor inputs with Appliances programmable sensitivity for use in touch sensor applications. Each sensor input automatically recalibrates Features to compensate for gradual environmental changes. Three (3) Capacitive Touch Sensor Inputs Programmable sensitivity The CAP1133 also contains three (3) LED drivers that offer Automatic recalibration full-on / off, variable rate blinking, dimness controls, and Individual thresholds for each button breathing. Each of the LED drivers may be linked to one of the sensor inputs to be actuated when a touch is detected. Proximity Detection As well, each LED driver may be individually controlled via Multiple Button Pattern Detection a host controller. Calibrates for Parasitic Capacitance The CAP1133 includes Multiple Pattern Touch recognition Analog Filtering for System Noise Sources that allows the user to select a specific set of buttons to be Press and Hold feature for Volume-like Applications touched simultaneously. If this pattern is detected, then a 2 SMBus / I C Compliant Communication Interface status bit is set and an interrupt generated. Low Power Operation Additionally, the CAP1133 includes circuitry and support for 5uA quiescent current in Deep Sleep enhanced sensor proximity detection. 50uA quiescent current in Standby (1 sensor input monitored) The CAP1133 offers multiple power states operating at low Samples one or more channels in Standby quiescent currents. In the Standby state of operation, one Three (3) LED Driver Outputs or more capacitive touch sensor inputs are active and all Open Drain or Push-Pull LEDs may be used. Programmable blink, breathe, and dimness controls Deep Sleep is the lowest power state available, drawing Can be linked to Capacitive Touch Sensor inputs 5uA (typical) of current. In this state, no sensor inputs are Available in 10-pin 3mm x 3mm RoHS compliant DFN active. Communications will wake the device. package 1. SMSC, the SMSC logo and RightTouch are registered trademarks and the RightTouch logo is a trademark of Standard Microsystems Corporation (SMSC). Block Diagram LED1 LED2 LED3 VDD GND SMCLK SMBus LED Driver, Breathe, and Capacitive Touch Sensing Slave SMDATA Dimness control Algorithm Protocol ALERT CS1 CS2 CS3 SMSC CAP1133 DATASHEET Revision 1.32 (01-05-12) 3 Channel Capacitive Touch Sensor with 3 LED Drivers Datasheet Ordering Information: ORDERING NUMBER PACKAGE FEATURES CAP1133-1-AIA-TR 10-pin DFN 3mm x 3mm Three capacitive touch sensor inputs, (Lead-free RoHS compliant) Three LED drivers, SMBus interface Reel size is 4,000 pieces This product meets the halogen maximum concentration values per IEC61249-2-21 For RoHS compliance and environmental information, please visit www.smsc.com/rohs Please contact your SMSC sales representative for additional documentation related to this product such as application notes, anomaly sheets, and design guidelines. Copyright 2012 SMSC or its subsidiaries. All rights reserved. Circuit diagrams and other information relating to SMSC products are included as a means of illustrating typical applications. Consequently, complete information sufficient for construction purposes is not necessarily given. Although the information has been checked and is believed to be accurate, no responsibility is assumed for inaccuracies. SMSC reserves the right to make changes to specifications and product descriptions at any time without notice. Contact your local SMSC sales office to obtain the latest specifications before placing your product order. The provision of this information does not convey to the purchaser of the described semiconductor devices any licenses under any patent rights or other intellectual property rights of SMSC or others. All sales are expressly conditional on your agreement to the terms and conditions of the most recently dated version of SMSC s standard Terms of Sale Agreement dated before the date of your order (theTerms of Sale Agreemen). The product may contain design defects or errors known as anomalies which may cause the product s functions to deviate from published specifications. Anomaly sheets are available upon request. SMSC products are not designed, intended, authorized or warranted for use in any life support or other application where product failure could cause or contribute to personal injury or severe property damage. Any and all such uses without prior written approval of an Officer of SMSC and further testing and/or modification will be fully at the risk of the customer. Copies of this document or other SMSC literature, as well as the Terms of Sale Agreement, may be obtained by visiting SMSCs website at