TIDUFI2 April   2026

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1System Description
  8. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
    3. 2.3 Highlighted Products
      1. 2.3.1 AMC131M03
      2. 2.3.2 MSPM0G1506
      3. 2.3.3 MSPM0L2228
      4. 2.3.4 ISO673IDWR
      5. 2.3.5 TRS3232EIDBR
      6. 2.3.6 TPS70933DBVR
      7. 2.3.7 CDC6C
  9. 3Hardware, Software, Testing Requirements, and Test Results
    1. 3.1 Hardware Requirements
      1. 3.1.1 Shunt Resistor Requirements
      2. 3.1.2 PCB Layout Requirements
      3. 3.1.3 Component Placement Requirements
      4. 3.1.4 Thermal Management Requirements
      5. 3.1.5 Isolation Requirements
      6. 3.1.6 EMI and EMC Considerations
    2. 3.2 Software Requirements
      1. 3.2.1 TIDA-010999 Metrology
      2. 3.2.2 GUI Operation
      3. 3.2.3 Voltage and Current Measurements
    3. 3.3 Test Setup
    4. 3.4 Test Results
      1. 3.4.1 Test Number One: Determination of the Initial Intrinsic Error
      2. 3.4.2 Test Number Two: Starting Current
      3. 3.4.3 Test Number Three: No-Load Conditions
      4. 3.4.4 Test Number Four: Voltage Variation, Voltage Measurement Port
  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 [Optional Section]
        1. 4.1.3.1 Layout Prints [Optional Section]
  11. 5Tools and Software
  12. 6Documentation Support
  13. 7Support Resources
  14. 8Trademarks
  15. 9About the Author

3.4.2 Test Number Two: Starting Current

Objective: The purpose of this test is to verify that the meter can generate the appropriate number of pulses within the allowable time frame between one pulse and the next.

The expected time, T, between two pulses is given by Equation 2.

Equation 2. 3.6 × 10 6 m × k × V min ⁡ × I s t

where

  • m = number of elements = 1
  • k = number of pulses = 10000
  • Vmin = minimum voltage = 90V
  • Ist = starting current = 0.5, 1, 2

BMPE: The time between each test pulse at Ist must be less than 1.5T for each current range.

Table 3-2 Starting Current Test Results
CURRENT TIME OF TP1 (S) TIME OF TP2 (S) TIME OF TP3 (S)
0.5 8.90 8.88 9.03
1 4.23 4.21 4.25
2 2.10 2.16 2.03

Summary: The meter passes class E for this test.