AT42QT1011 View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

AT42QT1011

Single-key QTouch® Touch Sensor IC

Atmel Corporation 

Atmel AT42QT1011

Single-key QTouch® Touch Sensor IC

DATASHEET

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

 Infinite max on-duration

 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)

9542I–AT42–05/2013

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