Bi - Directional Current and Power Monitoring Sensor Module with I2C Interface - INA226 Module

💍 Estardyn INA226 and INA231 Bi-Directional Current/Power Monitoring Sensor Modules

💥 The INA226 and INA231 are advanced current shunt and power monitoring modules designed for precision and efficiency in various applications. Both modules utilize an I2C™ or SMBUS-compatible interface, allowing seamless integration into a range of electronic systems. They are engineered to monitor shunt voltage drop and bus supply voltage with exceptional accuracy.

INA226 Module

🧩 The INA226 module is capable of monitoring current across common-mode bus voltages ranging from 0 V to 36 V, while being independent of the supply voltage. Its versatility is demonstrated through features like a programmable calibration value, customizable conversion times, and averaging options. This combination allows the module to provide direct readouts in amperes for current and watts for power, minimizing the computational load on the host system.

💍 With a single supply voltage ranging from 2.7 V to 5.5 V and a typical supply current of only 330 μA, the INA226 is both power-efficient and reliable. It operates effectively in harsh environments, with an operating temperature range of –40°C to +125°C. Offering up to 16 programmable addresses on the I2C-compatible interface, the INA226 provides flexibility in multi-device applications.

🔧 Key Features of INA226:

• Senses bus voltages from 0 V to 36 V
• Supports high-side or low-side sensing
• Reports current, voltage, and power readings
• High accuracy with a maximum gain error of 0.1% and offset of 10 μV
• Configurable averaging options to suit application needs
• Up to 16 programmable addresses for multi-device configurations
• Operates from a 2.7 V to 5.5 V power supply
• Encased in a compact 10-Pin DGS (VSSOP) package

📦 INA231 Module

💍 The INA231 module enhances current and power monitoring with a 1.8 V I2C-compatible interface, featuring 16 programmable addresses. It is engineered to handle bus voltages from 0 V to 28 V while providing an ALERT pin to assert protection when values exceed preset limits. This intelligent design reduces the computational burden on the host by enabling direct readings of current in amperes and power in watts.

🪶 The INA231 operates from a single 2.7 V to 5.5 V supply and maintains a power consumption of 330 μA (typical). With two startup mode options, this module uses the INA231A variant, which performs continuous conversions of shunt and bus voltage from the moment it powers on. The device is designed for high reliability, functioning within a temperature range of -40°C to +125°C.

🔧 Key Features of INA231:

• Bus voltage sensing range of 0 V to 28 V
• Flexible high-side or low-side sensing configurations
• Accurate current, voltage, and power reporting capabilities
• High precision with a maximum gain error of 0.5% and offset of 50 μV
• Allows configurable averaging options for enhanced data accuracy
• Programmable alert thresholds to prevent overvoltage conditions
• 1.8 V I2C compatible interface for easy integration
• Compact dimensions: 18mm x 19.4mm

📦 These sensor modules are ideal for a wide range of applications, including servers, telecommunications equipment, power management systems, battery chargers, power supplies, and various testing instruments. With their robust design and impressive features, the INA226 and INA231 modules are essential tools for any modern electronic system requiring precise current and power monitoring.