LC717A00AJ数据手册集成电路（IC）的传感器电容式触控规格书PDF

描述 Description

The LC717A00AJ is a high-performance, low-cost capacitance-digital-converter LSI for electrostatic capacitive touch sensor, especially focused on usability. It has 8 channels capacitance-sensor input. The built-in logic circuit can detect the state (ON/OFF) of each input and output the result. This makes it ideal for various switch applications. The calibration function is automatically performed by the built-in logic circuit during power activation or whenever there are environmental changes. In addition, since initial settings of parameters, such as gain, are configured, LC717A00AJ can operate as stand-alone when the recommended switch pattern is applied. Also, since LC717A00AJ has a serial interface compatible with I2C and SPI bus, parameters can be adjusted using external devices whenever necessary. Moreover, outputs of the 8-input capacitance data can be detected and measured as 8-bit data.

特性 Features

• Detection system: Differential capacitance detection (Mutual capacitance type)
• High sensitivity performance - even wearing multiple layers of gloves, air gap, or thick materials
• Input capacitance resolution: Can detect capacitance changes in the femto Farad order
• Design friendly - can be connected directly to a familiar MCU and execute stand alone operation
• Measurement interval (8 differential inputs): 18ms (Typ) (at initial configuration),3ms (Typ) (at minimum interval configuration)
• Automated built-in noise and environmental change compensation function technology
• External components for measurement: Not required
• Current consumption: 320 µA (Typ) (VDD = 2.8 V), 740 µA (Typ) (VDD = 5.5 V)
• Supply voltage: 2.6 V to 5.5 V
• Detection operations: Switch
• Interface: I2C compatible bus or SPI selectable.

应用 Application

• White goods
• Black goods
• PC peripherals
• Office Automation
• Refrigerator
• Washing machine
• Cooking appliances
• TV
• Printer

简介

LC717A00AJ属于集成电路（IC）的传感器电容式触控。由制造生产的LC717A00AJ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。