IQS904A-00000TSR

IQS904 Datasheet IQ Switch - ProxSense Series Single Channel Capacitive Sensor and Controller for Dimmer Applications Unparalleled Features Extensive feature set in a TSOT23-6 package Extremely low current consumption Automatic tuning for optimal operation in various environments & compensation against sensitivity reducing objects The IQS904 ProxSense IC is a fully integrated single channel capacitive contact and proximity sensor with built in controller for dimming applications. With market leading sensitivity and automatic tuning of the sense antenna, the IQS904 provides an extremely cost effective minimalist implementation requiring very few external components. The device is ready for use in a large range of AC/DC dimming applications, while programming options allow flexible fine tuning in specialized applications. Main Features Single Channel input device IQS904A : AC applications IQS904D : DC applications ATI: Automatic tuning to optimum sensitivity Supply Voltage 2.95V to 5.5V Internal voltage regulator and reference capacitor OTP options Output Polarity (Active High or Active Low) for IQS904AC Proximity & Touch Thresholds FITD time(18s or 5s) for IQS904DC Automatic drift compensation Development and Programming tools available (USBProg) Compact TSOT23-6 Package Applications DC/AC Lamp Dimming Camping Lights Flash Lights Night Lights T TSOT23-6 A Under Cabinet Lighting -40C to 85C IQS904 Proximity detection that enables backlighting activation Current Consumption: 200 A (Patented) Replacement for electromechanical switches Copyright Azoteq (Pty) Ltd 2015. IQS904 Datasheet Page 1 of 24 All Rights Reserved. Revision 1.10 April 2015 8.7 FILTERS USED BY THE IQS904................................ 15 8.7.1 Long Term Average (LTA) ........................... 15 Table of Contents CONFIGURATION: BANK0 BIT7-6 ................................... 15 IQS904 DATASHEET ........................................................ 1 8.8 ATI .................................................................. 15 UNPARALLELED FEATURES .............................................. 1 9 ANTENNA TUNING IMPLEMENTATION (ATI) ......... 16 MAIN FEATURES ............................................................. 1 9.1 AUTOMATIC ATI ................................................. 16 APPLICATIONS ................................................................ 1 10 ELECTRICAL CHARACTERISTICS .............................. 17 FUNCTIONAL OVERVIEW ................................................ 3 10.1 ABSOLUTE MAXIMUM SPECIFICATIONS .................... 17 1 INTRODUCTION ...................................................... 3 10.2 GENERAL CHARACTERISTICS (MEASURED AT 25C) .... 17 TABLE 10.1 IQS904 GENERAL OPERATING CONDITIONS ... 17 1.1 PIN-OUT .............................................................. 3 TABLE 10.2 START-UP AND SHUT-DOWN SLOPE FIGURE 1.1 IQS904 PIN-OUT ......................................... 3 CHARACTERISTICS ............................................................. 17 TABLE 1.1 IQS904 PIN-OUT....................................... 3 0 10.3 OUTPUT CHARACTERISTICS (MEASURED AT 25 C) ..... 18 1.2 APPLICABILITY ....................................................... 3 TABLE 10.3 IQS904DC CHARACTERISTICS .................... 18 2 ANALOGUE FUNCTIONALITY................................... 3 10.4 ELECTROMAGNETIC COMPATIBILITY ........................ 18 10.4.1 Electrostatic discharge (ESD) ................. 18 3 DIGITAL FUNCTIONALITY ........................................ 4 TABLE 10.4 ESD CHARACTERISTICS ............................... 18 4 DETAILED DESCRIPTION.......................................... 5 10.4.2 Static Latch-Up(LU) ................................ 18 Table 10.5 Static Latch-Up(LU) ....................... 18 4.1 SYSTEM OVERVIEW ................................................ 5 10.5 TIMING CHARACTERISTICS ..................................... 19 FIGURE 4.1 SYSTEM OVERVIEW ....................................... 5 Table 10.6 Main Oscillator.............................. 19 4.2 TYPICAL CIRCUIT FOR DC APPLICATIONS .................... 5 FIGURE 4.2 REFERENCE DESIGN (DC APPLICATION) ............ 5 11 MECHANICAL DIMENSIONS .................................. 19 4.3 TYPICAL CIRCUIT FOR AC APPLICATIONS .................... 6 11.2 PACKAGE MSL ................................................... 20 FIGURE 4.3 REFERENCE DESIGN (AC APPLICATION) ............. 6 12 REVISION HISTORY ............................................... 21 5 HIGH SENSITIVITY ................................................... 7 13 DATASHEET AND PART-NUMBER INFORMATION . 22 6 USER INTERFACE DESCRIPTION .............................. 7 13.1 ORDERING INFORMATION ..................................... 22 TABLE 6.1 POWER LEVELS FOR DIFFERENT OPERATIONAL 13.2 STANDERD DEVICES ............................................. 22 MODES 7 13.3 DEVICE PACKAGING CONVENTION .......................... 23 6.1 USER INTERFACE: USER SELECTABLE DIMMING LEVEL ... 7 13.3.1 Top ......................................................... 23 FIGURE 6.2 DIMMING LEVEL VERSUS PROXIMITY AND TOUCH 8 13.3.2 Bottom ................................................... 23 7 USER CONFIGURABLE OPTIONS .............................. 9 14 CONTACT INFORMATION ...................................... 24 7.1 CONFIGURING OF DEVICES ...................................... 9 7.2 IQS904AC USER OPTIONS ........................................ 10 7.3 IQS904DC USER OPTIONS........................................ 12 8 DESCRIPTION OF USER OPTIONS .......................... 14 8.1 DC/AC ............................................................. 14 8.2 ADJUSTABLE PROXIMITY THRESHOLD ...................... 14 CONFIGURATION: BANK0 BIT1-0 .................................. 14 8.3 ADJUSTABLE TOUCH THRESHOLD ............................ 14 CONFIGURATION: BANK0 BIT 4-2 ................................. 14 8.4 LOGIC OUTPUT ................................................... 14 8.5 PROX ON LOAD ENABLE/DISABLE ........................... 14 CONFIGURATION: BANK1 BIT1 ..................................... 15 8.6 FITD TIME ON LOAD (5S OPTION ONLY AVAILABLE ON IQS904DC) ................................................................... 15 Copyright Azoteq (Pty) Ltd 2015. IQS904 Datasheet Page 2 of 24 All Rights Reserved. Revision 1.10 April 2015