SBOU209B August   2019  – August 2021 TMCS1100 , TMCS1100-Q1

 

  1.   1
  2.   Trademarks
  3. 1General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
  4. 2Overview
    1. 2.1 Kit Contents
    2. 2.2 Related Documentation From Texas Instruments
  5. 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  VREF Input Filter
      4. 3.2.4  Buffer Amplifier Filter and Divider
      5. 3.2.5  Measurement Connector
      6. 3.2.6  Load Connectors
      7. 3.2.7  Ground Test Points
      8. 3.2.8  TMCS1100 Isolated Current-Sense Amplifier
      9. 3.2.9  Temperature Sensor
      10. 3.2.10 Reference Divider Buffer
  6. 4Operation
    1. 4.1 Measurements
    2. 4.2 Advanced Measurement Tips
  7. 5Schematics, PCB Layout, and Bill of Materials
    1. 5.1 Schematics
    2. 5.2 PCB Layout
    3. 5.3 Bill of Materials
  8. 6Revision History

3.2.10 Reference Divider Buffer

U3x is the TLV376IDBVR. U3X is configured as a buffer that sets the TMCS1100 at mid-supply according to the voltage divider composed of R3x and R4x by default. The user has the option to either short out this buffer with a 0-Ω resistor at R5x or replace the amplifier with another amplifier that has a common-mode range and output-swing range that allows for a divided voltage of interest.