Boardoza INA228 Current and Power Monitor Breakout Board

High-Precision Power Measurement with B-INA228-BRK

The B-INA228-BRK breakout board features Texas Instruments’ industry-leading INA228 power monitor . With its onboard 15 mΩ shunt resistor, it measures 20-bit resolution and less than: ±0.05% error, while the VBUS pin allows direct voltage monitoring from 0 V to 85 V. The high-speed I²C interface (SCL/SDA), programmable ALERT output, and integrated triangular time filter make it easy to detect sudden load changes and protect your system.

Equipped with a standard 5-pin header (VCC, GND, SDA, SCL, ALERT) and built-in pull-up resistors, the module integrates into microcontroller projects in minutes. From industrial power supplies and battery management systems to IoT nodes and power efficiency analyzers, the B-INA228-BRK provides reliable data in both prototyping and mass production. Its compact layout and high-quality passive components ensure excellent noise immunity and stable performance in any environment.

Additional Notes:

- A0 and A1 default to LOW through the R6 and R7 pull-down resistors. Close the corresponding A0 or A1 solder jumper to connect that address input to VCC; select each bit independently.

- The VBUS1 solder jumper is open by default. Close it to connect the VBUS sense input to VIN+ for simultaneous current and high-side bus-voltage measurement. The VBUS input may also be accessed through the labelled VBUS terminal.