HDC2021中文資料帶膠帶蓋的 2% RH 超低功耗數(shù)字相對(duì)濕度傳感器數(shù)據(jù)手冊(cè)TI規(guī)格書

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

簡(jiǎn)介

HDC2021屬于傳感器變送器的多功能。由TI制造生產(chǎn)的HDC2021多功能多功能傳感器和變送器將兩個(gè)或更多獨(dú)立的傳感器與驅(qū)動(dòng)和輸出調(diào)節(jié)電路整合在一起。數(shù)據(jù)通過(guò)單一輸出類型進(jìn)行通信，例如藍(lán)牙、USB、CAN 總線、以太網(wǎng)、I2C、SPI 或 RS-485。組合示例包括加速計(jì)-磁力儀、濕度-壓力-溫度、濕度-光線-壓力-聲音-溫度-傾斜-振動(dòng)，以及加速計(jì)-陀螺儀。