The INA219 module is a zero-drift, bi-directional current / power monitoring IC with I2C interface to further expand TI’s energy-efficient electronics portfolio.

With the industry’s highest accuracy and smallest size, the INA219 not only monitors the voltage drop across the shunt resistor, senses the shunt supply voltage, but also calculates the power supply.

The device is available in a SOT23 package and provides a small, low-cost solution for digital current sensing of servers, notebooks, power supplies, battery management, and automotive and telecom equipment.