SBOU074E january 2009 – july 2023 INA219
The INA219 shunt and bus voltages are applied through the terminal block T4. The T4 terminal block is a direct connection to VIN+ and VIN– of the INA219. The bus voltage is monitored on VIN– (26 V maximum). The shunt voltage is the difference between VIN– and VIN+ (320 mV maximum). See also the INA219 data sheet.