IQS620A-0-CSR Azoteq

IQ Switch ProxFusion Series IQS620A Datasheet Combination sensor with dual channel capacitive proximity/touch, Hall-effect and inductive sensing The IQS620A ProxFusion IC is a multifunctional capacitive, Hall-effect & inductive sensor designed for applications where any or all of the technologies may be required. The IQS620A is an ultra-low power solution designed for short or long term activations through any of the sensing 2 channels. The IQS620A is fully I C compatible and can be configured to output main trigger events on GPIOs. Features RoHS & Reach Compliant Unique combination of sensing technologies: Capacitive sensing Hall-effect sensing Inductive sensing Capacitive sensing Full auto-tuning with adjustable sensitivity 2pF to 200pF external capacitive load DFN(3x3)-10 WLCSP-9 capability Enhanced temperature stability Representat ions on ly, not actual ma rking Hall-effect sensing On-chip Hall-effect measurement plates Low power consumption: Dual direction Hall switch sensor UI 130A (100Hz response, 1ch inductive) 2 level detection (widely variable) 105A (100Hz response, 2ch Hall) Detection range 10mT 200mT 90A (100Hz response, 3ch capacitive) Inductive sensing 75A (100Hz response, 1ch cap. SAR) 2 level adjustable detection and hysteresis 46A (20Hz response, 1ch inductive) External sense coil required (PCB trace) 38A (20Hz response, 2ch Hall) Multiple integrated UI options based on 32A (20Hz response, 3ch capacitive) years of experience in sensing on fixed and 27A (20Hz response, 1ch cap. SAR) mobile platforms: 2.5A (4Hz response, 1ch cap. wake-up) Proximity wake-up Touch SAR Hysteresis Supply voltage: Automatic Tuning Implementation (ATI) IQS620A: 1.8V (-2%) to 3.3V performance enhancement (10bit) Low profile packages: Minimal external components DFN(3x3)-10 (3 x 3 x 0.8mm) 10 pin 2 Standard I C interface WLCSP-9 (1.53 x 1.07 x 0.34mm) 9 pin Optional RDY signal for event mode operation Applications Mobile electronics (phones/tablets) Human Interface Devices SAR safety requirements for laptops, Proximity activated backlighting tablets and phones Applications with long-term activation 1 Wearable devices Aftermarket automotive White goods and appliances 1 Available Packages T DFN(3x3)-10 WLCSP-9 A -20C to +85C IQS620AzDNR IQS620AzCSR 1 The part is not automotive qualified. Copyright Azoteq (Pty) Ltd 2020 IQS620A datasheet revision 3.00 Page 1 of 94 All Rights Reserved Shortcut to memory map September 2020 IQ Switch ProxFusion Series Table of Contents IQS620A DATASHEET .................................................................................................................................................. 1 1 INTRODUCTION .................................................................................................................................................. 5 1.1 PROXFUSION ....................................................................................................................................................... 5 1.2 PACKAGING AND PIN-OUT ....................................................................................................................................... 6 1.3 REFERENCE SCHEMATIC ........................................................................................................................................... 8 1.4 SENSOR CHANNEL COMBINATIONS ........................................................................................................................... 10 1.5 PROXFUSION SENSITIVITY ..................................................................................................................................... 11 2 CAPACITIVE SENSING ........................................................................................................................................12 2.1 INTRODUCTION TO PROXSENSE .............................................................................................................................. 12 2.2 CHANNEL SPECIFICATIONS ...................................................................................................................................... 13 2.3 HARDWARE CONFIGURATION .................................................................................................................................. 14 2.4 SOFTWARE CONFIGURATION ................................................................................................................................... 15 2.5 SENSOR DATA OUTPUT AND FLAGS ........................................................................................................................... 18 3 HALL-EFFECT SENSING .......................................................................................................................................20 3.1 INTRODUCTION TO HALL-EFFECT SENSING ................................................................................................................. 20 3.2 CHANNEL SPECIFICATIONS ...................................................................................................................................... 20 3.3 HARDWARE CONFIGURATION .................................................................................................................................. 21 3.4 SOFTWARE CONFIGURATION ................................................................................................................................... 22 3.5 SENSOR DATA OUTPUT AND FLAGS ........................................................................................................................... 23 4 INDUCTIVE SENSING ..........................................................................................................................................24 4.1 INTRODUCTION TO INDUCTIVE SENSING ..................................................................................................................... 24 4.2 CHANNEL SPECIFICATIONS ...................................................................................................................................... 24 4.3 HARDWARE CONFIGURATION .................................................................................................................................. 25 4.4 SOFTWARE CONFIGURATION ................................................................................................................................... 26 4.5 SENSOR DATA OUTPUT AND FLAGS ........................................................................................................................... 27 5 TEMPERATURE MONITORING ...........................................................................................................................28 5.1 INTRODUCTION TO TEMPERATURE MONITORING ......................................................................................................... 28 5.2 CHANNEL SPECIFICATIONS ...................................................................................................................................... 28 5.3 HARDWARE CONFIGURATION .................................................................................................................................. 28 5.4 SOFTWARE CONFIGURATION ................................................................................................................................... 29 5.5 SENSOR DATA OUTPUT AND FLAGS ........................................................................................................................... 30 6 DEVICE CLOCK, POWER MANAGEMENT AND MODE OPERATION ......................................................................31 6.1 DEVICE MAIN OSCILLATOR ...................................................................................................................................... 31 6.2 DEVICE MODES .................................................................................................................................................... 31 6.3 SYSTEM RESET ..................................................................................................................................................... 32 7 COMMUNICATION ............................................................................................................................................33 2 7.1 I C MODULE SPECIFICATION .................................................................................................................................... 33 2 7.2 I C READ ............................................................................................................................................................ 33 2 7.3 I C WRITE .......................................................................................................................................................... 33 7.4 STOP-BIT DISABLE OPTION ...................................................................................................................................... 34 7.5 DEVICE ADDRESS AND SUB-ADDRESSES ..................................................................................................................... 35 7.6 ADDITIONAL OTP OPTIONS .................................................................................................................................... 35 7.7 RECOMMENDED COMMUNICATION AND RUNTIME FLOW DIAGRAM ................................................................................ 37 8 MEMORY MAP ..................................................................................................................................................38 8.2 DEVICE INFORMATION DATA .................................................................................................................................. 41 8.3 FLAGS AND USER INTERFACE DATA ........................................................................................................................... 42 8.4 CHANNEL COUNTS (RAW DATA) ............................................................................................................................... 47 Copyright Azoteq (Pty) Ltd 2020 IQS620A datasheet revision 3.00 Page 2 of 94 All Rights Reserved Shortcut to memory map September 2020