SBOU248 December   2020 TMCS1107 , TMCS1107-Q1

 

  1.   Trademarks
  2. 1General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
  3. 2Overview
    1. 2.1 Kit Contents
    2. 2.2 Related Documentation From Texas Instruments
  4. 3Hardware
    1. 3.1 Features
    2. 3.2 Circuitry
      1. 3.2.1 Bypass Capacitors
      2. 3.2.2 Output Filter
      3. 3.2.3 Measurement Connector
      4. 3.2.4 Load Connectors
      5. 3.2.5 Ground Test Points
      6. 3.2.6 TMCS1107 Isolated Current-Sense Amplifier
      7. 3.2.7 Temperature Sensor
  5. 4Operation
    1. 4.1 Measurements
    2. 4.2 Advanced Measurement Tips
  6. 5Schematics, PCB Layout, and Bill of Materials
    1. 5.1 Schematics
    2. 5.2 PCB Layout
    3. 5.3 Bill of Materials

Operation

The following are instructions to set up and use the TMCS1107EVM. For the following instructions, y = A to D for the A1 to A4 gain variants, respectively. Figure 4-1 shows an example of a simple, low-side setup on the A1B (50 mV/A) gain variant. Reverse current can be measured on the TMCS1107nB devices by switching the placement of the hot-supply and electronic load along with reversing their polarities. The EVM has isolation, and external supplies are distinguished by hot for load and cold for DUT supply. The hot supply can be isolated and at a different potential than the cold supply.

GUID-20201112-CA0I-PXMR-3MGM-GLL6RWCT70G7-low.svg Figure 4-1 Low-Side Forward Current Setup
  1. For greater maneuverable flexibility, break apart the EVM sub boards along the score lines. Otherwise, the board can be left intact.
  2. Attach the high-current lug connectors to IN+ and IN– of the gain version to be tested.
  3. Connect the terminals of an external cold supply to the GND and VCC test points on the EVM gain variant of choice. Be sure to connect GND first and make sure that the external cold supply is between 3 V and 5.5 V.
  4. Connect the input per Section 4.1.
WARNING:

Do not leave EVM powered when unattended.

Hot surface. Contact may cause burns. Do not touch!