INA302A1QPWRQ1

Current Regulation/Management Overview

The INA302A1QPWRQ1 is a high-precision, bi-directional current sense amplifier from Texas Instruments, designed for automotive applications. It features a fixed gain of 20 V/V and operates with a supply voltage range of 2.7 V to 5.5 V. The device supports common-mode voltages up to 36 V, enabling both high-side and low-side sensing. Key electrical characteristics include a maximum input offset voltage of 15 µV and a gain error of 0.02%. It is housed in a 14-TSSOP package and is qualified under AEC-Q100 standards for operation between -40°C and 125°C.

Current Regulation/Management Feature Summary

• Bi-directional current sensing capability supporting both high-side and low-side configurations
• High precision performance with low input offset voltage and minimal gain error
• Automotive grade qualification ensuring reliability in harsh operating environments

Current Regulation/Management Applications

• Automotive battery management systems
• Motor control current monitoring
• High-side load switch current limiting

Current Regulation/Management Procurement Notes

Verify the specific suffix 'A1' indicates the fixed 20 V/V gain configuration. Confirm the 'QPWRQ1' designation ensures AEC-Q100 automotive qualification and TSSOP packaging. Cross-reference the manufacturer datasheet for the INA302-Q1 series to validate pinout compatibility and thermal specifications before integration into final designs.

Current Regulation/Management Selection Notes

Select this component when precise bi-directional current measurement is required in automotive systems. The fixed 20 V/V gain simplifies design by eliminating external resistor networks. Ensure the application requires support for common-mode voltages up to 36 V. This part is suitable for space-constrained designs utilizing the 14-TSSOP package while maintaining high accuracy over the extended industrial temperature range.

Current Regulation/Management Part Context

This device belongs to the INA302-Q1 family of current sense amplifiers. It shares architectural similarities with the INA303-Q1 but offers distinct gain and bandwidth characteristics tailored for different sensing speeds and accuracies. The family is designed to replace discrete solutions, providing integrated protection and monitoring functions in a compact surface-mount package.

Current Regulation/Management Replacement Considerations

The INA302A2QPWRQ1 serves as a direct functional substitute within the same package, differing only in its fixed gain setting.