This INA226 / INA231 sensor module is a high-precision bi-directional current and power monitoring solution featuring an I2C-compatible interface, ideal for embedded systems and power management applications. Designed for accurate measurement of shunt voltage and bus supply voltage, the module provides direct readings of current in amperes and power in watts, minimizing the processing load on the host system.

Key Features:

• Supports both INA226 and INA231 sensors
• Bi-directional current sensing with high-side or low-side measurement capability
• Bus voltage sensing:
  • INA226: 0V to 36V
  • INA231: 0V to 28V
• Power supply range: 2.7V to 5.5V
• High accuracy:
  • INA226: 0.1% gain error, 10μV offset
  • INA231: 0.5% gain error, 50μV offset
• I2C/SMBus-compatible interface with up to 16 programmable addresses
• Configurable averaging and calibration options
• Alert output for programmable thresholds and fault conditions
• Low power consumption: typical 330μA
• Operating temperature: –40°C to +125°C
• Compact module dimensions: 18 × 19.4 mm

Applications:

Perfect for servers, telecom equipment, computing systems, power supplies, battery chargers, and test equipment requiring precise current and power monitoring.