Microchip AT42QT2120-XUR

按钮，滑块，拨轮是I²C1.8V ~ 5.5V-40°C ~ 85°C

Overview

The Microchip'sAT42QT2120-XUR is a capacitive touch controller with 12 configurable Microchip QTouchADC buttons, sliders and wheels. The QTouchADC sensing algorithm (self capacitance) enables the user to achieve longer-range proximity sensing. This capability makes the device ideal for any type of proximity-sensing application, including wake-up, thermostat, TV controls, wireless mouse, etc. This reduces the total power consumption of your device and results in a more intuitive and differentiated user interface.

The QTouchADC sensing algorithm enables superior sensing because of faster acquisition times and shorter burst lengths. This algorithm is utilized in the new Microchip AT42QT2120-XUR touch controller, as well in the Microchip QTouch Library in the Microchip ATtiny20 and ATtiny40 devices. In addition to providing the industry's best proximity range, QTouchADC removes the need for any external components per sensing channel and reduces the pins to 1-pin-per-channel.

Features

QTouch™ Series
20-TSSOP (0.173, 4.40mm Width) package
Up to 10 LED driver channels

Surface Mount Mounting Type

Applications

There are a lot of Microchip Technology
AT42QT2120-XUR Capacitive Sensors applications.

• Rain I Fog I Ice I Snow Sensor
• Material Size Detection
• Material Stack Height
• Level Sensor for Liquids, including Conductive ones such as Detergent, Soap, and Ink
• Collision Avoidance
• Rain, Fog, Ice, Snow Sensor
• Automotive Door and Kick Sensors
• Compact Capacitive Keyboards
• Remote Control Trackpads
• Appliances