QT1018BH

Introduction

The AT42QT1010 (QT1010) is a digital burst mode charge-transfer (QT™) sensor that is capable of detecting near proximity or touch, making it ideal for implementing touch controls.
With the proper electrode and circuit design, the self-contained digital IC will project a touch or proximity field to several centimeters through any dielectric like glass, plastic, stone, ceramic, and even 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, can lead to entirely new product concepts.

Features

● Number of Keys:
● One – configurable as either a single key or a proximity sensor
● Technology:
● Patented spread-spectrum charge-transfer (direct mode)
● Key outline sizes:
● 6 mm × 6 mm or larger (panel thickness dependent); widely different sizes and
shapes possible
● Electrode design:
● Solid or ring electrode shapes
● PCB Layers required:
● One
● Electrode materials:
● Etched copper, silver, carbon, Indium Tin Oxide (ITO)
● Electrode substrates:
● PCB, FPCB, plastic films, glass
● Panel materials:
● Plastic, glass, composites, painted surfaces (low particle density metallic
paints possible)
● Panel thickness:
● Up to 12 mm glass, 6 mm plastic (electrode size and Cs dependent)
● Key sensitivity:
● Settable via capacitor (Cs)
● Interface:
● Digital output, active high
● Moisture tolerance:
● Increased moisture tolerance based on hardware design and firmware tuning
● Operating Voltage:
● 1.8 V – 5.5 V; 17 µA at 1.8 V typical
● Package:
● 6-pin SOT23-6 RoHS compliant
● 8-pin UDFN/USON RoHS compliant
● Signal processing:
● Self-calibration, auto drift compensation, noise filtering
● Applications:
● Control panels, consumer appliances, proximity sensor applications, toys,
lighting controls, mechanical switch or button,
● Patents:
● QTouch® (patented charge-transfer method)
● HeartBeat (monitors health of device)