SBOA600 July   2024 ISOTMP35

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 Calculating Thermal Response Time
    2. 1.2 Current Design with Non-Isolated Temperature Sensors
    3. 1.3 Proposed Design Using the ISOTMP35 Isolated Temperature Sensor
  5. 2Experiment Setup
    1. 2.1 Step 1: Prepare the Oil Bath
    2. 2.2 Step 2: Prepare the Liquid Gallium
    3. 2.3 Step 3: Submerge the Copper Pad
    4. 2.4 Step 4: Prepare Each PCB Configuration
    5. 2.5 Step 5: Testing Each PCB Configuration
    6. 2.6 Test Results
  6. 3Summary
  7. 4References

2.5 Step 5: Testing Each PCB Configuration

To begin the test, 4 PCBs were assembled: 2 with ISOTMP35s, and 2 with NTCs (TSM0A103F34D1RZ). This particular NTC has a 1% temperature accuracy, and has a 0402 sized footprint.

Once all four PCBs were tested, thermal epoxy was applied to the NTC boards and then cured to thermally couple the NTCs to the copper pad. Once the thermal epoxy finished curing, those boards were then tested as well.