TIDUFG5 December   2025

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1System Description
    1. 1.1 Insulation Monitoring
    2. 1.2 Key System Specifications
  8. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
      1. 2.2.1 TIDA-010985 Overview
      2. 2.2.2 Solving for the Unknown Isolation Resistances
      3. 2.2.3 Addressing Large Time Constant Cases
      4. 2.2.4 Prediction Algorithms
      5. 2.2.5 Understanding Error Sources
    3. 2.3 Highlighted Products
      1. 2.3.1 LP-MSPM0G3507
      2. 2.3.2 TPSI2240-Q1
      3. 2.3.3 RES60A-Q1
      4. 2.3.4 TLV9002-Q1
      5. 2.3.5 TPSM33620-Q1
      6. 2.3.6 TPS7A2033
      7. 2.3.7 ISOW1044
      8. 2.3.8 TSM24CA
      9. 2.3.9 TLV431B
  9. 3Hardware, Software, Testing Requirements, and Test Results
    1. 3.1 Hardware Requirements
    2. 3.2 Software
    3. 3.3 Test Setup
      1. 3.3.1 Hardware Test Setup
      2. 3.3.2 Software Test Setup
    4. 3.4 Test Results
  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
        1. 4.1.3.1 Layout Prints
    2. 4.2 Tools and Software [Required Topic]
    3. 4.3 Documentation Support
    4. 4.4 Support Resources
    5. 4.5 Trademarks
  11. 5About the Authors

3.3.1 Hardware Test Setup

Figure 3-1 shows the basic test setup.

TIDA-010985 Hardware Test Setup Figure 3-1 Hardware Test Setup
TIDA-010985 LaunchPad™ J101 Default Jumper Configuration Figure 3-2 LaunchPad™ J101 Default Jumper Configuration
  1. Make all required hardware connections as shown in Figure 3-1. Do not energize the HV supply until all connections are secured and placed properly inside the safety box.
  2. Connect the target test RC load to the HV connectors. There are a few convenient options for users:
    1. J6 or TP11 for VDC+ connection
    2. J7 or TP10 for VDC– connection
    3. J9 for protected earth (PE) ground. Note that the system ground is tied to the PE.
  3. Connect the oscilloscope probes to the desired SW_EN pins (J13 pins 39 and 40) and ADC input pins (J5 pins 25 and 27) to debug the board
  4. Connect the HV differential probes to the HV connectors for debugging, if needed
  5. Import the demonstration project and start CCS software debug mode
  6. Turn on the HV power supply and observe the waveforms and the calculated resistance and capacitance values
Note: To use the external DC power supply (input to J14 of the TIDA-010985 board) to power the reference design, R52 and R46 must be shorted, and the jumpers on J101 the LP device must be removed (all except for GND, SWDIO, and SWCLK for the debugger to work).