System Setup; Theory Of Operation For Ina219_Test_Board Hardware - Texas Instruments INA219EVM User Manual

System Setup

2 System Setup
Figure 2-1 shows the system setup for the INA219EVM. The PC runs software that communicates with the SM-
USB-DIG Platform. The SM-USB-DIG Platform generates the analog and digital signals used to communicate
with the INA219_Test_Board. Users can connect the INA219_Test_Board to the system and monitor the power,
current, and voltage of the system under test conditions.

2.1 Theory of Operation for INA219_Test_Board Hardware

Figure 2-2 shows a block diagram of the INA219_Test_Board. The printed circuit board (PCB) provides
2
connections to the I C and general-purpose input and outputs (GPIO) on the SM-USB-DIG Platform board.
The PCB also provides connection points for external connections of the shunt voltage, bus voltage, and GND.
4 INA219EVM Rev A Model User's Guide and Software Tutorial
SM-USB-DIG
Figure 2-1. INA219EVM Hardware Setup
V
DUT
Switched 5.0V Power
25-Pin
Male DSUB Signals
From USB DIG Platform
Interface
Figure 2-2. INA219_Test_Board Block Diagram
Copyright © 2023 Texas Instruments Incorporated
System on Which Shunt Current
Bus Voltage, and Power is Measured
Shunt
Resistor
System
Power
SENS009
INA219
Adapter
Test Board
Platform
Connection to
Supply
Shunt Voltage
and GND
2 Address
I C
Jumpers
INA219
SBOU074E – JANUARY 2009 – REVISED JULY 2023
www.ti.com
System
Load
2
I C
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