Product Information

IQS231A-00004000-DNR

IQS231A-00004000-DNR electronic component of Azoteq

Datasheet
Capacitive Touch Sensors Cap/Prox Controller for SAR Applications

Manufacturer: Azoteq
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges



Price (USD)
N/A

Obsolete
Availability Price Quantity
0 - Global Stock

MOQ : 1
Multiples : 1
1 : USD 2.403
10 : USD 0.8325
100 : USD 0.4968
500 : USD 0.432
1000 : USD 0.378
3000 : USD 0.3607
24000 : USD 0.2959
45000 : USD 0.2916
N/A

Obsolete
     
Manufacturer
Product Category
RoHS - XON
Icon ROHS
Number of Channels
Package / Case
Height
Length
Packaging
Series
Termination Style
Width
Brand
Interface Type
Sensor Type
Maximum Operating Temperature
Minimum Operating Temperature
Operating Supply Voltage
Product Type
Factory Pack Quantity :
Subcategory
Supply Voltage - Max
Supply Voltage - Min
Tradename
Cnhts
Hts Code
Mxhts
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IQ Switch ProxSense Series Azoteq IQS231A/B DATASHEET Single Channel Capacitive Proximity/Touch Controller for SAR Applications 1 Device Overview The IQS231A/B ProxSense IC is a self-capacitance controller designed for applications where an awake/activate on proximity function is required. The IQS231A/B is an ultra-low power solution that uses unique release and/or movement detection for applications that require long- term detection. 2 The IQS231A/B operates standalone or I C and features configuration via OTP (One Time 2 Programmable) bits. Switching from I C to standalone during runtime is also possible in order to access all settings while offering the simplicity of a standalone output. IQS231B offers alternate hardware with identical firmware to the IQS231A. IQS231B hardware offers improved temperature response and low temperature range. 1.1 Main Features > Integrated SAR user interface offering a > Extended controls in I2C mode (setup in I2C, simple GPIO output runtime with standalone output) > Quick release detection effectively > Optional input for synchronized prevent false triggers from remaining implementations (input to instruct IC when to sense) > Quick release sensitivity options 6 pin TSOT23-6 RoHS2 > Wide range of control for sensing in high Compliant power RF environments 8 pin WLCSP-8 6 pin DFN6 > Pin compatible with devices of same package type (All ProxSense TSOT23-6 devices1,IQS211A WLCSP-8 device) > 1.8V (-2%) to 3.6V Input voltage Representations only, not actual markings > Capacitive resolution down to 0.02fF > Capacitive load capability up to 120pF > Synchronization output failsafe pulses may > External threshold adjustment pin be used by the master to synchronize on. (minimize need for pre-empted OTP Sensing is done after each pulse adjustments) > Synchronization input Sensing is only done > Minimal external components (direct while Sync input is low input strap) > Low power sensing: 30Hz (default), 100Hz, > Standalone failsafe mode (backwards 8Hz, 4Hz (sub 6uA mode) compatible failsafe output, short pulses > Constant sampling rates during all power on output to indicate operational device) modes with rapidly debounced output > Default OTP options focus on safety and changes passing SAR lab qualification, OTP > Advanced temperature & interference changes offer performance advantages compensation option > I2C interface option (improved compatibility) 1 Input voltage level and pin functions may differ Copyright Azoteq (Pty) Ltd 2020 IQS231A/B Datasheet Page 1 of 47 All Rights Reserved Revision 2.5 October 2021 IQ Switch ProxSense Series Azoteq 1.2 Applications > SAR sensor > Hold detection for screen activation > Integrated hybrid designs (RF and > On-ear detection capacitive sensing combined) > Movement sensing applications (user interaction detection, anti-theft) T DFN6 TSOT23-6 WLCSP-8 (1.5 x 0.9 x 0.4mm) A -20C to 85 C IQS231A IQS231A (NRFND) -40C to 85 C IQS231B IQS231B IQS231B 1.3 Block Diagram VDDHI VDDHI VREG BOD Non- Internal POR Digital - P, RAM, ROM volatile regulator circuit memory VSS SDA / IO2 Analog I2C ProxSense Engine (ADC) HW SCL / IO1 MCU or (Master) GPIO Analog - Capacitive offset calibration Cx Reference GND (battery, metal frame, Sensing Pad copper pad) E-field = Capacitance Figure 1.1 Functional Block Diagram for IQS231A/B The IQS231A/B supports relative capacitance measurements for detecting capacitance changes. Basic features of the IQS231A/B include: > Charge-transfer capacitance measurement technology (Analog ProxSense Engine) > Finite state machine to automate detection and environmental compensation without MCU interaction (integrated microprocessor) > Self-capacitance measurements > Signal conditioning to provide signal gain (Analog Capacitive offset calibration) > Signal conditioning to provide offset compensation for parasitic capacitance (Analog Capacitive offset calibration) > Integrated calibration capacitors (Analog Capacitive offset calibration) > Integrated timer for timer triggered conversions > Integrated LDO regulator for increased immunity to power supply noise Copyright Azoteq (Pty) Ltd 2020 IQS231A/B Datasheet Page 2 of 47 All Rights Reserved Revision 2.5 October 2021

Tariff Desc

8543.70.00 - Other machines and apparatus Free
13 No Signal processors (graphic equalisers, crossovers etc.)
91 .. Other

9027.10.00 Instruments and apparatus for physical or chemical analysis (for example, polarimeters, refractometers, spectrometers, gas or smoke analysis apparatus); instruments and apparatus for measuring or checking viscosity, porosity, expansion, surface tension or the like; instruments and apparatus for measuring or checking quantities of heat, sound or light (including exposure meters); microtomes.

9031.80.00 - MEASURING OR CHECKING INSTRUMENTS, APPLIANCES AND MACHINES, NOT SPECIFIED OR INCLUDED ELSEWHERE IN THIS CHAPTER; PROFILE PROJECTORS Other instruments, appliances and machines Free

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