STMicroelectronics

HTS221TR  

Board Mount Humidity Sensors

The HTS221TR is a high-precision sensor developed by STMicroelectronics. It is designed to detect changes in temperature and humidity in the surrounding environment. The following is a description of the HTS221TR model, its features, and potential applications:

Description:

The HTS221TR is a compact, low-power, and high-accuracy sensor that combines a humidity sensor and a temperature sensor in a single chip. It is based on capacitive sensing technology for humidity detection and a bandgap principle for temperature sensing. The sensor is designed for use in a wide range of applications where accurate and reliable measurements of temperature and humidity are required.

Features:

1. High Accuracy: The HTS221TR offers high accuracy in both humidity and temperature measurements, with a humidity accuracy of ±3% RH and a temperature accuracy of ±1°C.
2. Low Power Consumption: The sensor is designed for low power consumption, making it suitable for battery-powered devices and systems.
3. Small Form Factor: The HTS221TR comes in a compact 2.5 x 3 mm LGA package, making it easy to integrate into various devices.
4. I2C and SPI Interfaces: The sensor supports both I2C and SPI communication protocols, providing flexibility in system design.
5. Wide Operating Voltage Range: It operates over a wide voltage range of 1.71V to 3.6V, making it compatible with various power supply options.
6. Built-in Temperature Compensation: The HTS221TR features built-in temperature compensation to ensure accurate humidity readings across different temperatures.
7. Interrupt Generation: The sensor can generate interrupts based on user-defined threshold values for both humidity and temperature.
8. User-Configurable Measurement Rates: The measurement rate can be configured by the user, allowing for customization based on the application's requirements.
9. Robust and Reliable: The sensor is designed to be robust and reliable, with built-in protection against user-induced faults such as over-voltage, under-voltage, and short circuits.

Applications:

1. Home Automation: The HTS221TR can be used in smart home systems to monitor and control temperature and humidity levels for enhanced comfort and energy efficiency.
2. HVAC Systems: In heating, ventilation, and air conditioning (HVAC) systems, the sensor can help maintain optimal indoor air quality and energy savings by providing accurate temperature and humidity feedback.
3. Weather Stations: The HTS221TR can be integrated into weather stations and outdoor devices to provide precise measurements of ambient temperature and humidity.
4. Industrial Control Systems: In industrial settings, the sensor can be used to monitor and control temperature and humidity levels in manufacturing processes, storage facilities, and other critical environments.
5. Medical and Healthcare Applications: Accurate temperature and humidity monitoring is essential in healthcare facilities, pharmaceutical storage, and medical equipment. The HTS221TR can be used to ensure optimal conditions for patient care and product preservation.
6. Appliances: The sensor can be integrated into various appliances, such as refrigerators, air purifiers, and dehumidifiers, to provide enhanced functionality and user experience.
7. Wearable Devices: In wearable technology, the HTS221TR can be used to monitor the user's immediate environment, providing data for health and fitness tracking applications.

The HTS221TR's combination of high accuracy, low power consumption, and ease of integration make it a versatile and valuable component for a wide range of applications where precise temperature and humidity measurements are essential.

HTS221TR Documents

Download datasheets and manufacturer documentation for HTS221TR

Datasheets :

HTS221 Datasheet      

PCN Packaging :

Box Label Chg 28/Jul/2016      

Other Related Documents :

Transition Guide for HTS221 to SHT4x      

PCN Obsolescence/ EOL :

HTS221TR obs 25/Nov/2022