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INA230EVM Hardware

3.3 Connecting Power

After the EVM and SM-USB-DIG are conjoined, as Figure 5 illustrates, connect the desired V

BUS

and shunt

configuration intended to be measured. Typically, setup involves a high- or low-side load and a shunt

resistor across VIN+ and VIN–. The setup in Figure 5 represents a test scenario with a low-side shunt

attached. This source for V

BUS

is not included with the kit, and its voltage may differ depending on your

testing needs. The external power source is connected to the terminal strip T3.

NOTE: It is always necessary to connect the power to the SM-USB-DIG Platform board before

connecting the USB cable.

Figure 5. Typical Hardware Test Connections for the INA230EVM

SBOU124–March 2012 INA230EVM Evaluation Board and Software Tutorial

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