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
