AT42QT1012 Series

Catalog

TOUCH SENSOR 1 KEY 1.8V TO 5.5V SURFACE MOUNT 6-PIN SOT-23 T/R

Part	Supplier Device Package	Proximity Detection	Mounting Type	Current - Supply	Voltage - Supply [Min]	Voltage - Supply [Max]	Number of Inputs	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Type	Resolution
Microchip Technology AT42QT1012-TSHR	SOT-23-6		Surface Mount	59 µA	1.8 V	5.5 V	1	SOT-23-6	85 °C	-40 °C	Buttons	14 b

Catalog

Key Features

• * Number of Keys: One – configurable as either a single key or a proximity sensor

• * Key outline sizes: 6 mm × 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)

• * Panel thickness: Up to 12 mm glass, 6 mm plastic (electrode size and Cs dependent)

• * Key sensitivity: Settable via capacitor (Cs)

• * Power consumption: 17 µA at 1.8 V typical

• * Applications: Control panels, consumer appliances, IoT, proximity sensor applications, toys, lighting controls, mechanical switch or button replacement

Description

The AT42QT101x Single Key capacitive touch controller family provides an easy way to add a touch key to any application. It implements advanced filtering algorithm to offer robust operation in noisy environment. Sensitivity and low power modes can be configured as well. The AT42QT1012 has touch-on/touch-off (toggle) functionality and a Auto Off timer to save on power consumption. The [AT42QT1010](https://www.microchip.com/en-us/product/at42qt1010) has "maximum on" touch duration of ~ 60s. The device output will then go low and a subsequent touch event can be detected. The [AT42QT1011](https://www.microchip.com/en-us/product/at42qt1011) output will remain high as long as a touch is detected. No "Max On" time out.