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QT100 C

HARGE

-T

RANSFER

QT

OUCH

™ IC

This datasheet is applicable to all revision 3 chips The QT100 charge-transfer (‘QT’) touch sensor is a self-contained digital IC capableof detecting near-proximity or touch. It will project a touch or proximity field through any dielectric like glass, plastic, stone, ceramic, and even most kinds of wood. It canalso 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 leadto 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 may be found.

1 6 2 5 VDDSNSSYNC/MODE SNSKVSSOUT 3 4

AT A GLANCE

Number of keys: One Technology: Patented spread-spectrum charge-transfer (direct mode) Key outline sizes: 6mm x 6mm or larger (panel thickness dependent); widely different sizes and shapes possible Electrode design: Solid or ring electrode shapes Layers required: One Electrode materials: Etched copper, silver, carbon, Indium Tin Oxide (ITO), Orgacon
† ink Electrode Substrates: PCB, FPCB, plastic films, glass Panel materials: Plastic, glass, composites, painted surfaces (low particle density metallic paints possible) Panel thickness: Up to 50mm glass, 20mm plastic (electrode size dependent) Key sensitivity: Settable via capacitor Interface: Digital output, active high Moisture tolerance: Good Power: 2V ~ 5V Package: 6-pin SOT23-6 RoHS compliant Signal processing: Self-calibration, auto drift compensation, noise filtering Applications:
Control panels, consumer
appliances, toys, lighting controls, mechanical switch or button Patents:QTouch™ (patented Charge-transfer method) HeartBeat™ (monitors health of device)
† Orgacon is a registered trademark of Agfa-Gevaert N.V

AVAILABLE OPTIONS T

A

SOT23-6

-40ºC to +85ºC QT100-ISG

Copyright © 2006-2007 QRG LtdQT100_3R0.09_0707