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INA226: Vbus connection

Gary Chang
Intellectual 490 points
Part Number: INA226

Tool/software:

Hello TI team,

I have some questions. In the High-Side Sensing Circuit, Vbus should be connected to V-, as this represents the actual voltage at the load side.

But in the diagram below, why is it connected to V+?

Thanks

  • 0
    TI__Mastermind 26185 points

    Hello Gary,

    For High-Side applications, you can actually connect the VBUS to either IN+ or IN-. It just depends on whether you want your power measurement to include the power dissipated over the shunt resistor or not.

    Regards,

    Mitch