Touch Sensor 1 Key 1.8V to 5.5V Surface Mount 8Pin UDFN EP
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 µA at 1.8V
• 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
