SNAA420 June   2025 HDC3020 , HDC3020-Q1 , HDC3021 , HDC3021-Q1 , HDC3022 , HDC3022-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 Motivation
    2. 1.2 The Physics of Humidity and Water Ingress
  5. 2Test Methodology
  6. 3Assumptions
  7. 4Proposed Algorithm Using Slew Rate Threshold
  8. 5Test Results
    1. 5.1 Test Results at Indoor Ambient Conditions
    2. 5.2 Test Results at Hot and Cold Temperature Conditions
    3. 5.3 Vent Submersion and Air Exchange Tests
  9. 6Summary
  10. 7References
Application Note

Humidity Sensor-Based Water Ingress Monitoring for Automotive Electronics