TIDUEA0A March   2019  – September 2020

 

  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
    3. 2.3 Highlighted Products
      1. 2.3.1 Device Recommendation
      2. 2.3.2 Digital Temperature Sensor - TMP117
      3. 2.3.3 Digital Temperature Sensor - TMP116
      4. 2.3.4 ESD Protection Devices
    4. 2.4 System Design Theory
      1. 2.4.1 PT100, PT500, PT1000 based Measurement in Heat Meters
      2. 2.4.2 TMP117 Configuration as Temperature Sensor
      3. 2.4.3 Digital RTD Solution Using TMP117
      4. 2.4.4 Ambient Temperature Considerations
  9. 3Hardware, Software, Testing Requirements, and Test Results
    1. 3.1 Required Hardware and Software
      1. 3.1.1 Hardware
      2. 3.1.2 Interface Test Software for TMP116
    2. 3.2 Testing and Results
      1. 3.2.1 Test Setup for Performance Testing
      2. 3.2.2 EMI and EMC Test Requirements for DRTD
      3. 3.2.3 TMP117 EMI/EMC Test Results
      4. 3.2.4 TMP117 Based Temperature Probe Measurement Performance Test Results
      5. 3.2.5 TMP116 Based Temperature Probe Measurement Performance Test Results
      6. 3.2.6 I2C-bus Cable Length Considerations
      7. 3.2.7 Power Supply
      8. 3.2.8 ESD Test Results for TMP116
      9. 3.2.9 Summary
  10. 4Design Files
    1. 4.1 Schematics
    2. 4.2 Bill of Materials
    3. 4.3 Layout Prints
    4. 4.4 Altium Project
    5. 4.5 Gerber Files
    6. 4.6 Assembly Drawings
  11. 5Software Files
  12. 6Related Documentation
    1. 6.1 Trademarks
  13. 7About the Author
  14. 8Revision History

3.2.2 EMI and EMC Test Requirements for DRTD

The TMP117 has been tested extensively for EMI/EMC using IEC defined electromagnetic compatibility standards with testing conditions defined as per the EN-1434 standard. The testing details and standards are summarized below.

  • EN 61000-4-2 (ESD): Air 8 kV / Contact 4 kV, single discharge, 10 times / discharging point

  • EN 61000-4-3 (HF fields, cable >1.2 m): 26-1000 MHz; 3 V / m or 10 V / m (Class C), AM (1 kHz) 80%

  • EN 61000-4-4 (Fast Bursts for Signal and DC lines > 1.2 m): 1.0 kV ±10%; 5-ns rise time; peak time 50 ns, with 5 kHz; Burst length 15 ms, Burst period 300 ms; 50 Ω output impedance for transient generator; 60 s for positive and negative bursts each

  • EN 61000-4-5 (for all cable connections > 10 m): 0.5 kV, 1.2/50 μs, 8/20 μs

  • EN 61000-4-6 (AM modulated HF): 0.15 to 26 MHz, 3 V (10 V for Class C) AM (1 kHz) 80%

  • EN 61000-4-8 (EM field) must be tested 60 A / m (Class A and B) and 100 A / m (Class C)

  • RF emissions (conducted and radiated) as per EN55022