HDC2021中文资料带胶带盖的 2% RH 超低功耗数字相对湿度传感器数据手册TI规格书

描述 Description

The HDC2021 is an integrated relative humidity and temperature sensor with a factory-installed polyimide tape cover over the opening of the relative humidity sensor element. The tape cover provides protection against pollutants that can appear in certain stages of the manufacturing process, such as SMT assembly, PCB board wash, and conformal coating. The tape design allows for a full conformal coating of the PCB, and includes an adhesive free corner tab for quick removal using tweezers.

The device is backward-compatible with the HDC2080, providing high accuracy measurements with very low power consumption in a small DFN package. The capacitive-based sensor includes new integrated digital features and a heating element to dissipate condensation and moisture. The digital features include programmable interrupt thresholds to provide alerts and system wake-ups without requiring a microcontroller to continuously monitor the system. Combined with programmable sampling intervals, low power consumption, and 1.8-V supply voltage support, the is designed for ultra-low power battery-operated systems.

特性 Features

• Factory-installed polyimide tape to protect sensor during assembly
• Temperature measurement range: –40°C to 125°C
• Temperature accuracy: ±0.2°C (typical), ±0.4°C (maximum)
• I2C interface compatibility
• 550 nA average supply current (11-bit accuracy option, 1 measurement/second)
• Backward-compatible with HDC2080

简介

HDC2021属于传感器变送器的多功能。由TI制造生产的HDC2021多功能多功能传感器和变送器将两个或更多独立的传感器与驱动和输出调节电路整合在一起。数据通过单一输出类型进行通信，例如蓝牙、USB、CAN 总线、以太网、I2C、SPI 或 RS-485。组合示例包括加速计-磁力仪、湿度-压力-温度、湿度-光线-压力-声音-温度-倾斜-振动，以及加速计-陀螺仪。