ATEVK1012A

Evaluation Board for AT42QT1012A QTouch® Touch Sensor

The kit is an evaluation kit and demonstration/development of applications using the AT42QT1012-TSHR "QT1012" integrated circuit IC. AT42QT1012 single key device featuring a touch on/touch off toggle output and programmable auto switch-off capability. The digital burst mode charge transfer QT sensor is designed specifically for touch controls. It includes all hardware and signal processing functions necessary to provide stable sensing under a wide variety of changing conditions. Only low cost, noncritical components are required for operation. With its tiny, low cost SOT-23 package, this device can suit almost any product needing a power switch or other toggle mode controlled function, especially small appliances and battery operated products. A unique environmentally conscious feature of this device is its timeout function, which can turn off power after a specified time delay ranging from minutes to an hour.

.

Single button or proximity sensor

.

Prolonged touch timeout after 60 seconds

.

Drift compensation algorithms constantly adjust the reference level

.

The devices modulate their frequency whilst measurements are taken

.

All the devices have a range of power modes depending on the response time required

.

The sensitivity of a capacitive button can be set to work with a wide range of panel thicknesses

.

The device will automatically calibrate on power up

.

IC"s include signal processing which helps to suppress detections caused by electrical noise