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

3.2.1 Detailed Setup

To configure a measurement evaluation, follow these steps:
  1. Connect a shunt resistor by doing either of the following:
    1. Solder a 2512 resistor across the pads of R1 that connects the IN+ and IN– inputs.
    2. Connect an external shunt across the IN+ and IN– terminals of J1.
  2. Connect the IN+ and IN– terminals in series with the load while powered off.
    1. When measuring more than 5 A, make sure the high current path does not go through the EVM (including the terminal block J1).
    2. When using 5 A or less with either an onboard or external shunt, the current path can be passed through the EVM.
      WARNING:
      When measuring current, first make sure that the equipment (shunt resistor, wires, connectors, and so on) can support the amperage and power dissipation. Secondly, make sure that the current flowing through J1 does not exceed 5 A. Failure to do so can result in damage to the EVM, or personal injury.
      Do not touch high voltage terminals.
      The EVM may get hot.
  3. Power on the system and measure the output voltage at the OUT test point
    1. Vout is equal to the gain of the device multiplied by the differential voltage measured directly at the device input pins