Datasheet

INA219 Software Overview www.ti.com
3.7 Connecting External Power to the INA219EVM
The INA219 power supply (V
S
) operates over the range of 3V to 5.5V (see the INA219 product data
sheet). The default jumper position provides 5V to the INA219 from the USB-DIG-Platform. The power
from the USB-DIG-Platform can be changed to 3V using JUMP9.
Another option is to connect power to the INA219 power supply (V
S
) using an external power supply. In
this case, connect power to the T3 terminal block and set JMP1 to the Vs_EXT positon. The INA219
power supply (V
S
) operates over the range of 3V to 5.5V, so be careful to not exceed this range.
3.8 Connecting External Signals to the INA219EVM
The INA219 shunt and bus voltages are applied via terminal block T4. The T4 terminal block is a direct
connection to V
IN+
and V
IN–
of the INA219. The bus voltage is monitored on V
IN–
(26V max). The shunt
voltage is the difference between V
IN–
and V
IN+
(320mV max). Refer to the INA219 data sheet for more
details
4 INA219 Software Overview
This section discusses how to install and use the INA219 software.
4.1 Operating Systems for INA219 Software
The INA219EVM software has been tested on the Microsoft Windows XP operating system (OS) with
United States and European regional settings. The software should also function on other Windows
operating systems.
14
INA219 Evaluation Module SBOU074A–January 2009–Revised February 2010
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