Texas Instruments

INA2133U

The INA2133U is a high-side current shunt monitor IC from Texas Instruments. It is designed to measure current in a variety of applications, including battery-powered devices, motor drives, and power supplies. The INA2133U offers several features that make it a popular choice for current sensing applications:

Description:

The INA2133U is a monolithic, precision current shunt monitor that can measure both the direction and magnitude of current flowing through a conductor. It is available in a small, thermally-protected SOT-23 package, making it ideal for use in compact and portable devices.

Features:

1. High accuracy: The INA2133U offers a high degree of accuracy, with a maximum current accuracy of ±0.5%.
2. Wide input voltage range: The INA2133U can operate over a wide input voltage range of 3V to 28V, making it suitable for use in a variety of applications.
3. Low power consumption: The INA2133U has a low power consumption of just 10µA, which makes it ideal for battery-powered devices.
4. Wide current measurement range: The INA2133U can measure currents from -200mA to +200mA, with a maximum shunt voltage of 200mV.
5. Programmable gain: The INA2133U features a programmable gain amplifier that allows for flexible current measurement ranges.
6. Thermal protection: The INA2133U includes thermal shutdown protection to prevent damage in the event of overheating.

Applications:

The INA2133U is suitable for a wide range of applications, including:

1. Battery-powered devices: The INA2133U can be used to monitor the current being drawn from a battery, helping to extend battery life and improve overall system efficiency.
2. Motor drives: The INA2133U can be used to measure the current being drawn by a motor, allowing for precise control and protection.
3. Power supplies: The INA2133U can be used to monitor the output current of a power supply, providing feedback for closed-loop control and protection.
4. Energy harvesting systems: The INA2133U can be used to measure the current being generated by an energy harvesting system, such as a solar panel or a wind turbine.
5. Medical devices: The INA2133U can be used to measure the current being used by medical devices, such as portable defibrillators or insulin pumps.

Overall, the INA2133U is a versatile and accurate current shunt monitor that is well-suited for a wide range of applications. Its small size, low power consumption, and high accuracy make it an ideal choice for designers looking for a reliable and efficient current sensing solution.