QT113H

QProx™ QT113 / QT113H CHARGE-TRANSFER TOUCH SENSOR ! ! ! ! ! ! ! ! ! ! ! ! Projects a proximity field through air Less expensive than many mechanical switches Sensitivity easily adjusted via capacitor value Turns small objects into intrinsic touch sensors 100% autocal for life - no adjustments required 2.5 to 5V, 600µA single supply operation Toggle mode for on/off control (strap option) 10s, 60s, infinite auto-recal timeout (strap options) Gain settings in 2 discrete levels HeartBeat™ health indicator on output Active-low (QT113) or active-high outputs (QT113H) Only one external part required - a 1¢ capacitor Vdd O ut O pt1 O pt2 1 8 Vss Sn s2 Sn s1 Gain Q T113 2 3 4 7 6 5 APPLICATIONS ! ! Light switches Prox sensors ! ! Appliance control Security systems ! ! Access systems Pointing devices ! ! Elevator buttons Toys & games The QT113 charge-transfer (“QT’”) touch sensor is a self-contained digital IC capable of detecting near-proximity or touch. It will project a proximity sense field through air, via almost any dielectric, like glass, plastic, stone, ceramic, and most kinds of wood. It can also turn small metal-bearing objects into intrinsic sensors, making them responsive to proximity or touch. This capability coupled with its ability to self calibrate continuously can lead to entirely new product concepts. It is designed specifically for human interfaces, like control panels, appliances, toys, lighting controls, or anywhere a mechanical switch or button ma...