AT42QT1012 Datasheet, PDF (1/6 Pages) ATMEL Corporation – One-channel Toggle-mode Touch SensorIC with Power Management Functions

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-spectrum charge-transfer (direct mode)
• Key outline sizes:
– 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:
– Good
• Power:
– 1.8V ~ 5.5V; 32.5 µA at 1.8V
• Package:
– 6-pin SOT23-6 (3 x 3 mm) RoHS compliant
• Signal processing:
– Self-calibration, auto drift compensation, noise filtering
• Applications:
– Power switch replacement in countertop appliances, irons, battery powered toys,
heaters, lighting controls, automotive interior lighting, commercial and industrial
equipment such as soldering stations and cooking equipment
• Patents:
– QTouch^® (patented charge-transfer method)
One-channel
Toggle-mode
Touch Sensor
IC with Power
Management
Functions
AT42QT1012
Summary
Note: This is a summary document.
A complete document is available.
For more information contact
www.atmel.com/touch.
9543CS–AT42–02/10