AT42QT1011-MAH Datasheet, PDF (1/25 Pages) ATMEL Corporation – Single-key QTouch® Touch Sensor IC

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