Bi - Directional Current/Power Monitoring Sensor Module with I2C Interface (5PCS - INA226)

💍 INA226 and INA231 Current/Power Monitoring Sensor Modules

🛠️ The INA226 and INA231 are sophisticated current shunt and power monitoring sensor modules designed for a wide range of applications where precision and reliability are essential. Both modules feature an I2C™ or SMBUS-compatible interface, making them easy to integrate into various electronic systems.

INA226 Module Overview

💥 The INA226 excels in monitoring both shunt voltage drops and bus supply voltages. Its advanced design includes programmable calibration values, conversion times, and averaging options, which, combined with an internal multiplier, allow for direct readings of current in amperes and power in watts. This functionality significantly streamlines data acquisition processes.

🪶 With the ability to sense common-mode bus voltages ranging from 0V to 36V, the INA226 adapts seamlessly to various applications. It operates efficiently within a supply voltage range of 2.7V to 5.5V while consuming a typical current of just 330μA. The module is robustly designed to function in extreme temperatures, with a specified range of -40°C to +125°C. Additionally, it supports up to 16 programmable addresses, allowing multiple devices to coexist on a single I2C bus.

INA231 Module Overview

💥 The INA231 offers similar capabilities as the INA226 but is optimized for applications requiring a 1.8V I2C-compatible interface. This module monitors shunt voltage drops and bus supply voltages while providing enhanced protection through its ALERT pin, which activates when monitored values exceed user-defined thresholds. This feature helps safeguard sensitive equipment from potential overcurrent conditions.

🪶 Like its counterpart, the INA231 can directly measure current within a bus voltage range of 0V to 28V and operates on a supply voltage of 2.7V to 5.5V with a typical supply current of 330μA. The INA231 is also designed to perform under extreme temperature conditions ranging from -40°C to +125°C. Notably, it has two variants: the INA231A, which begins with continuous conversions, and the INA231B, which starts in low-power shutdown mode. The module provided here utilizes the INA231A version for maximum responsiveness in monitoring applications.

🔧 Key Features of INA226 and INA231 Modules:

• Senses bus voltages from 0V to 36V (INA226) or 28V (INA231)
• Supports high-side or low-side sensing configurations
• Reports real-time current, voltage, and power metrics
• Ensures high accuracy with minimal gain error (0.1% for INA226 and 0.5% for INA231)
• Offers configurable averaging options to enhance measurement precision
• Features programmable alert thresholds for real-time monitoring
• Accommodates a broad supply voltage range of 2.7V to 5.5V
• Compact design in a 10-pin VSSOP for the INA226 and 18x19.4mm for the INA231

📦 Applications:

• Servers and Data Centers
• Telecommunications Equipment
• Computing and Processing Applications
• Power Management Solutions
• Battery Charging Systems
• Power Supply Units
• Testing and Measurement Equipment

🛠️ Whether you are developing energy-efficient systems, enhancing power management, or building precise monitoring solutions, the INA226 and INA231 modules deliver exceptional performance and versatility for your electronic design needs.