IQS231

ProxSense® Series IQS231 Datasheet Single Channel Capacitive Proximity/Touch Controller for SAR applications Features  Pin compatible with IQS127/128/227/228/211  Replacement solution for the IQS128 to meet SAR regulations (failsafe & long-term activation testing) and improve performance  Improved IQS128 DYCALTM operation with quick release detection for improved SAR safety  Human detection options for start-up detection and improved user experience (non-default, FCC approval pending)  1.75V to 3.6V Input voltage, trimmed to use proximity detection with 1.8V digital interface  External threshold adjustment pin (minimize need for pre-empted OTP adjustments)  Minimal external components (direct input strap)  Standalone failsafe mode (backwards compatible failsafe output, short pulses on output to indicate operational device)  Default OTP options focus on safety and passing SAR lab qualification, OTP changes offer performance advantages  Quick release detection – effectively prevent false triggers Applications  SAR Sensor  Integrated hybrid designs (RF and capacitive sensing combined)  Movement sensing applications (user interaction detection, anti-theft) RoHS2 Compliant 6 pin TSOT23-6 Representations only, not actual markings  Quick release sensitivity options  Projected capacitive sensing option (selfcapacitance by default)  I2C interface option (improved compatibility)  Extended controls in I2C mode (setup in I2C, runtime with standalone output)  Hand-he...