TIDUF52 December   2023 MSPM0L1303 , MSPM0L1304 , MSPM0L1305 , MSPM0L1306 , MSPM0L1343 , MSPM0L1344 , MSPM0L1345 , MSPM0L1346

 

  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 Photoelectric Smoke Detector Background – DC-Based Signal Chain
      2. 2.2.2 Modulation-Based Smoke Detection Signal Chain
      3. 2.2.3 Optical Sensing AFE Design
        1. 2.2.3.1 TIA
        2. 2.2.3.2 BPF
        3. 2.2.3.3 Demodulator and Integrator
        4. 2.2.3.4 LED Driver
      4. 2.2.4 Optical and Mechanical Design
    3. 2.3 Highlighted Products
      1. 2.3.1 MSPM0L1306
      2. 2.3.2 TLV9062S
      3. 2.3.3 TPS7A24
      4. 2.3.4 TS5A623157
      5. 2.3.5 SN74LVC1G66
      6. 2.3.6 HDC2010
  9. 3Hardware, Software, Testing Requirements, and Test Results
    1. 3.1 Hardware Requirements
      1. 3.1.1 Power
      2. 3.1.2 Communication Interface
      3. 3.1.3 Headers
    2. 3.2 Software Requirements
      1. 3.2.1 Getting Started Firmware
      2. 3.2.2 Measurements and Smoke Detection
      3. 3.2.3 Additional Demonstration Functionality
      4. 3.2.4 Smoke Detector GUI
    3. 3.3 Test Setup
      1. 3.3.1 UL217 Smoke Box and Fire Testing Setup
      2. 3.3.2 Ambient Light Testing Setup
      3. 3.3.3 Air-Quality Sensing Test Setup
    4. 3.4 Test Results
      1. 3.4.1 UL217 Testing Results
      2. 3.4.2 Ambient Light Testing Results
      3. 3.4.3 Air-Quality Sensing Test Results
      4. 3.4.4 Power Testing Results
      5. 3.4.5 Fire Room Smoke Testing
  10. 4Design and Documentation Support
    1. 4.1 Design Files
      1. 4.1.1 Schematics
      2. 4.1.2 BOM
      3. 4.1.3 CAD Files
    2. 4.2 Tools and Software
    3. 4.3 Documentation Support
    4. 4.4 Support Resources
    5. 4.5 Trademarks
  11. 5About the Author

2.3.6 HDC2010

The HDC2010 is a highly-integrated digital humidity and temperature sensor that incorporates both humidity sensing and temperature-sensing elements, an analog-to-digital converter, calibration memory, and an I2C interface that are all contained in a 1.5-mm × 1.5-mm DSBGA package. The HDC2010 provides excellent measurement accuracy with very low power consumption and features programmable resolution for both humidity and temperature:

  • Temperature resolution [9, 11, 14]
  • Humidity resolution [9, 11, 14]

The conversion time during measurements is dependent upon the configured resolution for humidity and temperature, which can be configured for the best available power consumption.

The HDC2010 device incorporates a state-of-the-art polymer dielectric to provide capacitive-sensing measurements. As with most relative humidity sensors that include this type of technology, the user must meet certain application requirements to make sure of the best device performance for the sensing element. The user must:

  • Follow the correct storage and handling procedures during board assembly. See the Humidity Sensor: Storage and Handling Guidelines application report for these guidelines.
  • Protect the sensor from contaminants during board assembly and operation.
  • Reduce prolonged exposure to both high temperature and humidity extremes that can impact sensor accuracy.
  • Follow the correct layout guidelines for best performance. See the Optimizing Placement and Routing for Humidity Sensors application report for these guidelines.
GUID-1145071C-2FE7-4B1B-8402-A345474256C9-low.gifFigure 2-20 HDC2010 Functional Block Diagram