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