The INA381A4QDGSRQ1 from Texas Instruments is a state-of-the-art current sense amplifier with an integrated voltage output and comparator, specifically designed to meet the rigorous standards of automotive applications. This high-precision device is ideal for a wide range of applications, including motor control, battery management, and power supply monitoring in the automotive industry.

Key Features

• High Accuracy: The INA381A4QDGSRQ1 offers exceptional accuracy with a low offset voltage, making it suitable for sensing small differential voltages across shunt resistors.
• Integrated Comparator: With an onboard comparator, this device can provide overcurrent protection by comparing the sensed voltage to a user-defined threshold, simplifying system design and improving safety.
• Wide Common-Mode Range: This amplifier is capable of operating over a common-mode voltage range of -0.2V to +26V, accommodating a variety of battery voltages and transient conditions.
• Adjustable Gain: It features selectable gain options of 20 V/V, 50 V/V, 100 V/V, or 200 V/V, providing flexibility to match the sensitivity of the circuit to the current being measured.
• Low Power Consumption: Designed for automotive power-conscious applications, it maintains low quiescent current, contributing to the overall energy efficiency of the system.
• Temperature Range: The device operates over a wide temperature range from -40°C to +125°C, ensuring reliable performance under extreme conditions.
• Automotive Qualification: The INA381A4QDGSRQ1 is AEC-Q100 qualified, ensuring its reliability and suitability for automotive applications.

Package and Availability

The INA381A4QDGSRQ1 comes in a compact VSSOP-10 package, making it easy to integrate into space-constrained automotive environments. It is available for order and can be sourced directly from Texas Instruments or through authorized distributors.

Applications

This versatile device is designed for use in a variety of automotive applications, including but not limited to:

• Electronic power steering
• Anti-lock braking systems
• Battery management systems
• DC-DC converters
• Power supply monitoring

With its robust design and advanced features, the INA381A4QDGSRQ1 is an excellent choice for designers seeking a reliable and precise current sensing solution for their automotive projects.