Operation
11
SBOU241A – April 2020 – Revised June 2020
Copyright © 2020, Texas Instruments Incorporated
INA228, INA229, INA237, INA238, and INA239 EVM User’s Guide
Figure 9. IN+ and IN– Wiring With a Shunt Resistor
WARNING
If 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 10 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. Connect the VBUS terminal (J1 pin 2) to the desired bus voltage (likely either IN+ or IN–).
4. Connect the system ground to the GND terminal (J1 pin 1).
5. Power on the system, and observe the device states and outputs through the GUI.
