IQS128L

IQ Switch® ProxSense® Series IQS128 / IQS128L Datasheet IQ Switch® - ProxSense® Series Single Channel Capacitive Proximity/Touch Controller The IQS128 / IQS128L ProxSense® IC is a fully integrated capacitive sensor implementing Dynamic Calibration (DYCAL™) technology: intelligent hysteresis to allow for sensor drift even during sensor activation. Features IQS128 TSOT23-6 DYCAL™ : Intelligent Hysteresis Internal Capacitor Implementation (ICI) – reference capacitor on-chip IQS128L DFN8 (2x3) Automatic Tuning Implementation (ATI) Automatic adjustment for optimal sensor performance Supply voltage: 2.95V to 5.5V Minimum external components 1-Wire open drain data streaming option Advanced on-chip digital signal processing User selectable (OTP): External synchronisation control or External control over filter operation I/O Sink or Source selection Time-out for stuck key Proximity and Touch sensitivity selections IQS128L: Low Power options available Keys: Dielectric: Touch: Proximity: Material: Thickness: 5mm x 5mm or larger (overlay thickness dependent) Various electrical options (wire / PCB trace / ITO / conductive foil) Various non-metal materials (i.e. glass, plastic, painted surfaces) 6 mm plastic, 10 mm glass for touch. Very thick overlay possible for proximity Applications Occupancy sensors SAR qualification for Tablet PC’s On-ear detection for mobile phones 3D glasses Personal Media Players White goods and appliances Advantages Allows for sensor drift in periods of activati...