The INA281B3IDBVR is a precision current shunt monitor from Texas Instruments. It is designed to accurately measure and monitor current in a variety of applications, including battery-powered systems, power supplies, and motor control systems.
Description:
The INA281B3IDBVR is a highly integrated, precision current shunt monitor that offers excellent accuracy and low power consumption. It features a low-side current sensing configuration, which allows it to measure both positive and negative currents. The device also includes an integrated 5.1V shunt regulator, which provides a stable reference voltage for accurate current measurements.
Features:
- Low-side current sensing configuration for measuring both positive and negative currents
- Integrated 5.1V shunt regulator for stable reference voltage
- Wide supply voltage range (2.7V to 5.5V)
- Low power consumption (typical 1.5mA)
- Programmable gain amplifier (PGA) with selectable gain settings
- I2C digital interface for easy integration with microcontrollers and other digital systems
- Wide operating temperature range (-40°C to +125°C)
Applications:
The INA281B3IDBVR is suitable for a wide range of applications that require accurate current sensing, including:
- Battery-powered systems: The INA281B3IDBVR can be used to monitor the current being drawn from a battery, helping to extend battery life and improve system efficiency.
- Power supplies: The device can be used to measure the output current of a power supply, allowing for precise control and regulation of the output voltage.
- Motor control systems: The INA281B3IDBVR can be used to monitor the current being drawn by a motor, helping to prevent overheating and improve motor efficiency.
- Energy harvesting systems: The device can be used to measure the current being generated by an energy harvesting system, such as a solar panel or wind turbine.
- Medical equipment: The INA281B3IDBVR can be used in medical devices that require precise current sensing, such as defibrillators and insulin pumps.
Overall, the INA281B3IDBVR is a versatile and accurate current shunt monitor that offers a range of features and benefits for a variety of applications. Its low power consumption, integrated shunt regulator, and I2C digital interface make it an ideal choice for designers looking for a reliable and easy-to-use current sensing solution.