SLOU514 June   2021 INA254

 

  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 Theory of Operation
    2. 3.2 Features
    3. 3.3 Quick Start Setup
    4. 3.4 Current Input
  5. 4Schematics, PCB Layout, and Bill of Materials
    1. 4.1 Schematic
    2. 4.2 Layout
    3. 4.3 Bill of Material

3.4 Current Input

The current flowing across the IS+ and IS– pins develops a differential voltage across the 0.4 mΩ shunt and is amplified by the current shunt amplifier. The current flowing across this integrated shunt is multiplied by the current gain of the INA254A1 (20 mV/A), INA254A2 (40 mV/A), or INA254A3 (75 mV/A). Do not use this integrated shunt resistor as a stand-alone component. See the Integrated Shunt Resistor section of the INA254 data sheet (SLOS974) for more information.