INA302A2QPWRQ1

Overview

The INA302A2QPWRQ1 is a high-precision, bidirectional current sense amplifier designed for automotive applications. It operates with an input common-mode voltage range of 0V to 36V and supports supply voltages from 2.7V to 5.5V. The device features a fixed gain of 20 V/V, a bandwidth of 50kHz, and a slew rate of 4V/us. It is housed in a 14-TSSOP package and meets AEC-Q100 qualification standards.

Feature Summary

• Supports bidirectional current sensing with a wide common-mode voltage range from 0V to 36V.
• Provides a fixed gain of 20 V/V for simplified system design and accurate measurement.
• Qualified for automotive environments under the AEC-Q100 standard.

Applications

• Automotive battery monitoring systems
• High-side and low-side current sensing in power distribution units
• Motor control circuits requiring bidirectional current feedback

Procurement Notes

Verify the specific suffix 'QPWRQ1' to confirm automotive grade qualification and TSSOP packaging. Ensure compatibility with the target application's voltage levels and thermal requirements. Check for obsolescence notices as some variants may be nearing end-of-life status. Confirm RoHS compliance and moisture sensitivity level before integration into the manufacturing process.

Selection Notes

Select this component when automotive reliability and bidirectional sensing are required within a 36V common-mode window. The fixed 20 V/V gain suits applications needing moderate amplification without external resistors. Consider the 50kHz bandwidth for slower dynamic responses typical in power management rather than high-frequency switching applications.

Part Context

This part belongs to the Texas Instruments INA302 family of current sense amplifiers. The 'Q1' suffix indicates automotive qualification, while 'A2' denotes the specific gain setting. It serves as a robust solution for monitoring current flow in electric vehicles and advanced driver-assistance systems where precision and durability are critical.

Replacement Considerations

INA302A2IPWRQ1: Non-automotive grade equivalent with similar electrical characteristics but different temperature and reliability specifications.

FAQ

What is the maximum common-mode voltage supported by this amplifier?

The INA302A2QPWRQ1 supports a common-mode voltage range from 0V to 36V.

Is this device suitable for bidirectional current sensing?

Yes, the INA302A2QPWRQ1 is explicitly designed for bidirectional current sensing applications.