Texas Instruments HDC302x/ HDC302X-Q1 Digital Humidity sensors are integrated capacitive relative humidity (RH) and temperature sensors. It comes in a compact 2.5mm x 2.5mm package that provides high precision measurement over a wide power range (1.62V to 5.5V) with ultra-low power consumption. The temperature and humidity sensors are 100% tested and adjusted in a NIST-traceable production environment and verified with equipment that complies with ISO/IEC 17025 standards.

 

Offset error correction can reduce the offset of relative humidity sensors due to aging, exposure to extreme working environments and pollutants, thus bringing the device back to the precision specification. Automatic measurement mode and ALERT features minimize MCU sleep time for battery iot applications, thereby reducing system power consumption. Four different I2C addresses support speeds up to 1MHz. A heating element is provided to dissipate condensation and moisture.

 

Texas Instruments HDC3020/HDC3020-Q1 is an open-chamber package without a protective cover. A cover option is available in both device models to protect the open chamber relative humidity sensor (HDC3021/HDC3020-Q1 and HDC3022/HDC3021-Q1). HDC3021/HDC 3021-Q1 features a removable guard strap for conformal coating and PCB flushing. HDC3022/HDC3022-Q1 features a permanent IP67 filter membrane for dust and water resistance as well as PCB flushing. HDC 3020-Q1 devices comply with AEC-Q100 standards for automotive applications

 

● Meet the automotive application AEC-Q100 standard
-   Temperature range: -40°C to +125°C (Grade 1)
-   Device Human Body Model (HBM) Electrostatic Discharge (ESD) classification Class 2
-   Device CDM ESD classification class C4
● Relative humidity (RH) sensor
-   Work range: 0% to 100%
-   Typical accuracy: ±1.5%
-   Drift correction can reduce the offset and bring the device back to the precision specification.
-   Long-term drift: 0.21% relative humidity/year
-   Condensation protection is provided through an integrated heater
● Temperature sensor
-   Operating temperature range: -40°C to +125°C
-   Typical accuracy: ±0.1°C
● NIST traceability, relative humidity, and temperature
● Low power consumption, average current is 0.4µA
● I2C interface compatibility, speed up to 1Mhz
-   Four optional I2C addresses
-   Command/data protection is implemented through CRC checksum
● Power supply voltage: 1.62V to 5.50V
● Average supply current: 0.9µA (typical value)
● 2.50 mm2 and WSON-8 package
● Automatic measurement mode is available
● Programmable interrupt and measurement calibration
● Factory installed polyimide tape assembly cover and IP67 protection grade environmental seal cover

 

● Car
-   Hvac control module
-   Hvac Sensor (Air Quality)
-   Particulate matter PM2.5
-   Camera
● Battery management system
● Vehicle charging