INA3221EVM

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Evaluation and Demonstration Boards and Kits are a key tool in modern product design and development. They offer flexible, custom, low-cost solutions to support complex design and test activities. The INA3221EVM Evaluation Board is a versatile and easy to use tool designed for evaluating Texas Instruments’ INA3221 3A Bi- and Tri-directional Current/Voltage Shunt Monitor.

The INA3221EVB provides an efficient, convenient interface for a PC-based user such as a designer or tester. It can be connected to an evaluation platform, such as TI’s eZ430-F2013, providing additional flexibility in design, testing, and debugging. The evaluation board has an on-board power supply and an 18-pin breakout board which facilitates access to all the signals.

The INA3221EVM\'s application field is in measuring current in industrial, automotive and renewable energy solutions where current sensing is used to monitor the power flow and manage power consumption. The INA3221EVM is a power management system that can measure current in both directions and report it accurately and reliably. The INA3221EVM enables users to accurately measure the load current and voltage across a wide input voltage range. It provides robust performance with a wide common-mode voltage range of up to 12V, EMI immunity, and 0.1% accuracy over full temperature range. Additionally, its compact, robust design allows it to be integrated into space-constrained applications.

The INA3221EVM\'s working principle is based on the measurement of voltages across a shunt resistor connected in series with the device. It performs low-side sensing, meaning it measures the voltage between the shunt resistor and the load. The INA3221EVM measures the voltage drop across a sense resistor at both the load and the power source. The INA3221EVM calculates the current through the resistor by measuring the voltage drop across the resistor and applying Ohm’s Law. By correlating the voltage and the current, the direction of power flow is determined.

The INA3221EVM is an efficient and easy to use tool designed to help designers and testers accurately measure current and voltage in industrial, automotive, and renewable energy applications. It offers an efficient and convenient interface, a wide common-mode voltage range, EMI immunity, and 0.1% accuracy over full temperature range. The evaluation board features on-board power supply and an 18-pin breakout board which facilitates access to all the signals. The device is perfect for applications such as industrial, automotive, and renewable energy solutions where current sensing is used to monitor and manage power consumption.

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