IQS231 Datasheet (data sheet) PDF





IQS231 Datasheet, Single Channel Capacitive Proximity/Touch Controller

IQS231   IQS231  

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ProxSense® Series IQS231 Datasheet Sing le Channel Capacitive Proximity/Touch C ontroller for SAR applications Feature s  Pin compatible with IQS127/128/22 7/228/211  Replacement solution for the IQS128 to meet SAR regulations (fai lsafe & long-term activation testing) a nd improve performance  Improved IQS 128 DYCALTM operation with quick releas e detection for improved SAR safety  Human detection options for start-up d etection and improved user experience ( non-default, FCC approval pending)  1.75V to 3.6V Input voltage, trimmed to use proximity detection with 1.8V digi tal interface  External threshold ad justment pin (minimize need for pre-em

IQS231 Datasheet, Single Channel Capacitive Proximity/Touch Controller

IQS231   IQS231  
pted OTP adjustments)  Minimal extern al components (direct input strap)  Standalone failsafe mode (backwards com patible failsafe output, short pulses o n output to indicate operational device )  Default OTP options focus on safe ty and passing SAR lab qualification, O TP changes offer performance advantages  Quick release detection – effect ively prevent false triggers Applicatio ns  SAR Sensor  Integrated hybrid designs (RF and capacitive sensing com bined)  Movement sensing application s (user interaction detection, anti-the ft) RoHS2 Compliant 6 pin TSOT23-6 Re presentations only, not actual markings  Quick release sensitivity options  Projected capacitive sensing optio n (selfcapacitance by default)  I2C interface option (improved compatibilit y)  Extended controls in I2C mode (s etup in I2C, runtime with standalone ou tput)  Hand-held power on detection (safety back-off feature using user int eraction)  Optional input for synchr onized implementations (input to instru ct IC when to sense)  Synchronizatio n output – failsafe pulses may be use d by the master to synchronize on. Sens ing is done after each pulse  Synchr onization input – Sensing is only don e while Sync input is low  Low power sensing: 30Hz (default), 100Hz  Constant sampling rates during all power modes with rap








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