SBOU284 april   2023 INA310A , INA310B

 

  1.   SBOU284 Abstract
  2.   Trademarks
  3.   General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
  4. 1Overview
    1. 1.1 Kit Contents
    2. 1.2 Related Documentation From Texas Instruments
  5. 2Hardware
    1. 2.1 Features
  6. 3Operation
    1. 3.1 Quick Start Setup
    2. 3.2 Measurements
      1. 3.2.1 Detailed Setup
    3. 3.3 Comparator
  7. 4Circuitry
    1. 4.1 Current Sensing IC
    2. 4.2 Input Signal Path
    3. 4.3 Device Output and Comparator
  8. 5Schematics, PCB Layout, and Bill of Materials
    1. 5.1 Schematics
    2. 5.2 PCB Layout
    3. 5.3 Bill of Materials

4.1 Current Sensing IC

This section describes the main INA device and supporting components.

U1 is the INA310x current-sensing device (any gain or variant). C1 is a bypass capacitor that is placed near the sensor to help mitigate power-supply noise and provide current quickly to the device when needed.

The non-input device pins can be monitored directly through the test points TP1 – TP7. Note that there is one extra test point on GND for convenience. The input pins can be monitored either through the terminal J1, or by probing the pads of C2.