TIDUF51 November   2023

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1System Description
    1. 1.1 Key System Specifications
  8. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
      1. 2.2.1 mmWave Sensor Application
      2. 2.2.2 IWR6432 UART Communication
      3. 2.2.3 LAUNCHXLCC1352R1 Communication
      4. 2.2.4 Sensors Application
      5. 2.2.5 Power Supply Design
      6. 2.2.6 IWRL6432 Power Supply Considerations
    3. 2.3 Highlighted Products
      1. 2.3.1 IWRL6432
      2. 2.3.2 CC1352R
      3. 2.3.3 BQ25616
      4. 2.3.4 TPS62850
      5. 2.3.5 HDC3020
      6. 2.3.6 OPT3005
      7. 2.3.7 DRV5032
  9. 3Hardware, Software, Testing Requirements, and Test Results
    1. 3.1 Hardware Requirements
      1. 3.1.1 Getting Started Hardware
        1. 3.1.1.1 IWRL6432FSPEVM Initialization: IWRL6432 Programming
        2. 3.1.1.2 Base Board Initialization: CC1352R Programming
    2. 3.2 Software Requirements
    3. 3.3 Test Setup
      1. 3.3.1 Demonstration Setup
    4. 3.4 Test Results
      1. 3.4.1 Radar Detect Distance Measurement
      2. 3.4.2 People Counting Test Results
      3. 3.4.3 Wireless Range Test Results
      4. 3.4.4 Power Consumption Test Results
  10. 4Design and Documentation Support
    1. 4.1 Design Files
      1. 4.1.1 Schematics
      2. 4.1.2 BOM
      3. 4.1.3 PCB Layout Recommendations
        1. 4.1.3.1 Layout Prints
      4. 4.1.4 Altium Project
      5. 4.1.5 Gerber Files
      6. 4.1.6 Assembly Drawings
    2. 4.2 Tools and Software
    3. 4.3 Documentation Support
    4. 4.4 Support Resources
    5. 4.5 Trademarks
  11. 5About the Author

2.3.5 HDC3020

The HDC302x is an integrated capacitive based relative humidity (RH) and temperature sensor. The device provides high-accuracy measurements over a wide supply range (1.62 V to 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 National Institute of Standards and Technology (NIST) traceable and verified with equipment that is calibrated to ISO/IEC 17025 standards.

Offset Error Correction reduces relative humidity (RH) sensor offset due to aging, exposure to extreme operating conditions, and contaminants to return device to within accuracy specifications. For battery internet-of-things (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.

The HDC3020 is an open cavity package without 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 to protect against dust, water and PCB wash.