Datasheet > HDC3021DEHT

HDC3021DEHT

更新时间： 2024-11-20 02:48:23

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
51页	2002K
描述
HDC302x High-Accuracy, Low-Power, Digital Humidity and Temperature Sensor With Ultra-Low Drift

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HDC3021DEHT 数据手册

HDC3020

SNAS778 – JUNE 2021

HDC302x High-Accuracy, Low-Power, Digital Humidity and Temperature Sensor With

Ultra-Low Drift

1 Features

3 Description

•

Relative humidity (RH) sensor:

– Operating range: 0% to 100%

– Accuracy: ±1.5% typical

– Drift Correction: reduces offset to return device

to within accuracy specification

– Long-term drift: 0.21%RH/yr

– Condensation protection with integrated heater

Temperature sensor:

– Operating range: -40°C to 125°C

– Accuracy: ±0.1°C typical

NIST traceability: Relative humidity & temperature

Low power: average current 0.7 µA

I²C interface compatibility up to 1-Mhz speeds

– Four selectable I²C addresses

– Command/data protection through CRC

checksum

The HDC302x is an integrated capacitive based

relative humidity (RH) and temperature sensor, which

provides high accuracy measurements over a wide

supply range (1.62 V – 5.5 V), along with ultra-low

power consumption in a compact 2.5-mm × 2.5-mm

package. Both the temperature and humidity sensors

are 100% tested and trimmed on a production setup

that is NIST traceable and verified with equipment that

is calibrated to ISO/IEC 17025 standards.

•

Drift Correction reduces RH sensor offset due to

aging, exposure to extreme operating conditions, and

contaminants to return device to within accuracy

specifications. For battery IoT applications, auto

measurement mode and ALERT feature enable low

system power by maximizing MCU sleep time. There

are four different I²C addresses that support speeds

up to 1 MHz. A heating element is available to

dissipate condensation and moisture.

•

Supply voltage: 1.62 V to 5.50 V

Available auto measurement mode

Programmable interrupts

Programmable measurement calibration

Factory-installed polyimide tape assembly cover

Factory-installed IP67 rated environmental cover

The HDC3020 comes in an open cavity package

without a protective cover. Two device variants have

a cover option to protect the open cavity RH sensor:

HDC3021 and HDC3022. HDC3021 has removable

protective tape to allow conformal coatings and

PCB wash. HDC3022 has a permanent IP67 filter

membrane cover to protect against dust and water.

2 Applications

•

Washer & dryer

Refrigerator & freezer

Industrial transport

Cold Chain asset tracking & data logger

IoT environmental sensors

Air quality and gas detection

Humidifier/dehumidifier

Thermostat

CPAP and ventilator

Water leak detector

IP Camera

Device Information

PART NUMBER

PACKAGE⁽¹⁾

BODY SIZE (NOM)

HDC3020

HDC3021⁽²⁾

HDC3022⁽²⁾

WSON (8)

2.50 mm × 2.50 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

(2) Preview only.

3.30 V

HDC3

VDD

SCL

SDA

I²C

Controller

Calibration

ADC

ALERT

ADDR

ADDR1

I²C

GPIO

RH Sensor

T Sensor

Linearization

µC

RESET

GND

Typical Application

Typical RH Accuracy vs. RH Setpoint (T_A= 25°C)

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. ADVANCE INFORMATION for preproduction products; subject to change

without notice.

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与HDC3021DEHT相关器件

型号	品牌	获取价格	描述	数据表
HDC3021-Q1	TI	获取价格	带有可拆卸式胶带盖的汽车类 0.5% RH 数字湿度传感器
HDC3021QDEHRQ1	TI	获取价格	带有可拆卸式胶带盖的汽车类 0.5% RH 数字湿度传感器 \| DEH \| 8 \| -40
HDC3022	TI	获取价格	HDC302x High-Accuracy, Low-Power, Digital Humidity and Temperature Sensor With Ultra-Low D
HDC3022DEJR	TI	获取价格	HDC302x High-Accuracy, Low-Power, Digital Humidity and Temperature Sensor With Ultra-Low D
HDC3022DEJT	TI	获取价格	HDC302x High-Accuracy, Low-Power, Digital Humidity and Temperature Sensor With Ultra-Low D
HDC302X	TI	获取价格	HDC302x High-Accuracy, Low-Power, Digital Humidity and Temperature Sensor With Ultra-Low D
HDC-30382-CC	MOLEX	获取价格	Wire Terminal,
HDC-3038-CC	MOLEX	获取价格	Wire Terminal,
HDC-305162-CC	MOLEX	获取价格	Wire Terminal,
HDC-30516-CC	MOLEX	获取价格	Wire Terminal,

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