AT42QT1011中文资料Touch Sensing/Turnkey Products数据手册Microchip规格书

描述 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 AT42QT1011 output will remain high as long as a touch is detected. No \"Max On\" time out.The AT42QT1010 has \"maximum on\" touch duration of ~ 60s. The device output will then go low and a subsequent touch event can be detected.The AT42QT1012 has touch-on/touch-off (toggle) functionality and a Auto Off timer to save on power consumption.

特性 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

简介

AT42QT1011属于集成电路（IC）的传感器电容式触控。由制造生产的AT42QT1011传感器，电容式触控该系列产品提供操作电容式触摸感应传感器所需的模拟激励和测量资源，并以一种便于微控制器或类似器件使用的格式（例如 I2C 或 SPI 串行接口、UART 或简单的逻辑信号）来传递由此产生的信息。这些器件常用于人机界面应用。