AT42QT1012 AT42QT1012 Data Sheet Introduction The AT42QT1012 (QT1012) is a single key device featuring a touch on/touch off (toggle) output with a programmable auto switch-off capability. The device is One-channel Toggle-mode QTouch Touch Sensor IC with Power Management Functions. The QT1012 features a digital burst mode charge-transfer sensor designed specifically for touch controls and a unique green feature - the timeout function, which can turn off power after a time delay. Features Number of Keys: One, toggle mode (touch-on / touch-off), plus programmable auto-off delay and external cancel Configurable as either a single key or a proximity sensor Technology: Patented spread-s 6 mm x 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 external capacitor (Cs) Interface: Digital output, active high or active low (hardware configurable) Moisture tolerance: Increased moisture tolerance based on hardware design and firmware tuning Power: Datasheet DS40001948A-page 1 2017 Microchip Technology Inc. AT42QT1012 1.8 V 5.5 V 32 A at 1.8 V Package: 6-pin SOT23-6 (3 x 3 mm) RoHS compliant 8-pin UDFN/USON (2 x 2 mm) RoHS compliant Signal processing: Self-calibration, auto drift compensation, noise filtering DS40001948A-page 2 Datasheet 2017 Microchip Technology Inc.
