TIDA-00972 Reference Design

Texas Instruments

±2% Accurate Humidity Sensing Reference Design Supporting Robust 2m Wire Communication

Description

The TIDA-00972 reference design provides a sensor module level solution for +/- 2% of accuracy and reliable Relative Humidity (RH) and +/- 0.2 °C accuracy temperature sensing. The sensor module utilizes TI’s digital humidity and temperature sensor HDC1080 together with integrated communication bus buffer TCA9517 to provide high accuracy sensing result with robust communication over meters of wiring distance. The reference design addresses the key considerations during development and manufacturing of the sensor module with test results.

Features
  • Relative humidity accuracy ±2%: temperature accuracy ±0.2 °CSmall form factor of PCB size 15.7 mm x 7.6 mmVery low power consumption during operation and when idle: 1.2uA without I2C buffer. Supply cut during idle.Supports long-cable I2C communication over common wire (AWG24 with 2 meter length)Supports both 5V and 3.3V power supply
Applications
  • Washer & dryer
  • Refrigerator & freezer
  • Oscilloscopes & digitizers
  • CPAP machine
  • Cordless vacuum cleaner
  • Spectrometer
  • Blood glucose monitor
  • Aircraft cockpit display
  • Interconnect/distribution box
  • Lab & field Instrumentation
  • Automotive test
  • Dishwasher
  • Oven
  • Air conditioner outdoor unit
  • DIN rail power supply
  • Cooker hood
  • Source measurement unit (SMU)
  • Battery cell formation & test equipment
  • Humanoid
  • Air purifier & humidifier
  • Circuit breaker (ACB
  • MCCB
  • VCB)
  • Residential & living fan
Product Categories
  • Sensors

End Equipment Reference Diagrams

Application Area End Equipment
Washer & dryer https://www.ti.com/solution/washer-dryer#referencedesigns
Refrigerator & freezer https://www.ti.com/solution/refrigerators-and-freezers#referencedesigns
Oscilloscopes & digitizers https://www.ti.com/solution/oscilloscopes-digitizers#referencedesigns
CPAP machine https://www.ti.com/solution/cpap-machine#referencedesigns
Cordless vacuum cleaner https://www.ti.com/solution/cordless-vacuum-cleaner#referencedesigns
Spectrometer https://www.ti.com/solution/spectrometer#referencedesigns
Blood glucose monitor https://www.ti.com/solution/blood-glucose-monitor#referencedesigns
Aircraft cockpit display https://www.ti.com/solution/aircraft-cockpit-display#referencedesigns
Interconnect/distribution box https://www.ti.com/solution/interconnect-distribution-box#referencedesigns
Lab & field Instrumentation https://www.ti.com/solution/lab-field-instrumentation#referencedesigns
Automotive test https://www.ti.com/solution/automotive-test#referencedesigns
Dishwasher https://www.ti.com/solution/dish-washer#referencedesigns
Oven https://www.ti.com/solution/oven#referencedesigns
Air conditioner outdoor unit https://www.ti.com/solution/air-conditioner-outdoor-unit#referencedesigns
DIN rail power supply https://www.ti.com/solution/din-rail-power-supply#referencedesigns
Cooker hood https://www.ti.com/solution/cooker-hood#referencedesigns
Source measurement unit (SMU) https://www.ti.com/solution/source-measurement-unit-smu#referencedesigns
Battery cell formation & test equipment https://www.ti.com/solution/battery-cell-formation-test-equipment#referencedesigns
Humanoid https://www.ti.com/solution/humanoid#referencedesigns
Air purifier & humidifier https://www.ti.com/solution/air-purifier-humidifier#referencedesigns
Circuit breaker (ACB https://www.ti.com/solution/circuit-breaker-acb-mccb-vcb#referencedesigns
MCCB https://www.ti.com/solution/residential-living-fan#referencedesigns