The INA250A2QPWRQ1 is a high-precision, automotive-grade current sense amplifier with an integrated precision shunt resistor. Designed and manufactured by Texas Instruments, this device is part of the INA250 series, which is known for its reliability and performance in demanding applications. This particular model is optimized for automotive and industrial systems where accurate current measurement is critical for system performance and safety.

Key Features

• Integrated Precision Shunt Resistor: The INA250A2QPWRQ1 comes with a built-in 2 mΩ precision shunt resistor, enabling high-accuracy current measurement without the need for external components.
• High Accuracy: This device offers a low offset voltage and gain error, ensuring precise current measurement across a wide range of conditions.
• Wide Common-Mode Range: Capable of measuring currents with common-mode voltages ranging from -0.2V to +26V, the INA250A2QPWRQ1 is versatile and suitable for various applications.
• Automotive Qualification: As a Q1 device, it meets the stringent requirements for automotive applications and is qualified for use in vehicles.
• Output Voltage Scaling: The output of the INA250A2QPWRQ1 is directly proportional to the measured current, allowing for easy integration with analog-to-digital converters (ADCs) and microcontrollers.

Applications

The INA250A2QPWRQ1 is ideal for a range of applications where precision current sensing is essential, including:

• Automotive battery management systems
• Motor control in industrial automation
• Power management in automotive and industrial systems
• Overcurrent protection circuits
• Energy metering and monitoring systems

Package and Quality

The INA250A2QPWRQ1 is available in a compact 16-pin TSSOP (Thin Shrink Small Outline Package) that is suitable for space-constrained applications. The device is also AEC-Q100 qualified, ensuring it meets the reliability standards required for automotive electronics.

Conclusion

With its integrated shunt resistor, high accuracy, and automotive qualification, the INA250A2QPWRQ1 from Texas Instruments is a robust choice for designers looking to implement reliable current sensing in automotive or industrial systems. Its ease of use and high level of integration make it a valuable component for a wide array of applications that require precise monitoring and control of electrical currents.