INA302A2QPWRQ1

Current Regulation/Management Overview

The INA302A2QPWRQ1 is a high-accuracy, bidirectional current sense amplifier designed for automotive applications. It operates with a common-mode voltage range of 0V to 36V, supporting both high-side and low-side sensing configurations. The device features a fixed gain of 20 V/V and offers a bandwidth of 50 kHz with a slew rate of 4 V/µs. It functions within an extended temperature range of -40°C to 125°C and is housed in a 14-TSSOP package. This component meets AEC-Q100 qualification standards for robustness in demanding automotive environments.

Current Regulation/Management Feature Summary

• Supports bidirectional current sensing for both high-side and low-side monitoring applications
• Operates with a wide common-mode voltage range from 0V to 36V
• Provides fixed gain of 20 V/V for simplified system design
• Qualified for automotive use under AEC-Q100 standards

Current Regulation/Management Applications

• Automotive battery management systems
• Motor control circuits
• High-side and low-side current monitoring
• Power distribution units in vehicles

Current Regulation/Management Procurement Notes

Verify the specific suffix 'QPWRQ1' confirms AEC-Q100 automotive qualification and 14-TSSOP packaging. Ensure compatibility with 36V common-mode limits and 50kHz bandwidth requirements. Confirm RoHS3 compliance and check for obsolescence notices as related family members may have status changes. Validate that the fixed 20 V/V gain matches the target application's signal conditioning needs without external resistor adjustments.

Current Regulation/Management Selection Notes

Select this component when automotive reliability and bidirectional sensing are required. It is suitable for applications needing a wide input common-mode range up to 36V. The fixed gain simplifies layout compared to programmable alternatives. Consider the 14-TSSOP package size for space-constrained designs. Ensure the 50kHz bandwidth is sufficient for the switching frequencies present in the target power stage.

Current Regulation/Management Part Context

This part belongs to the INA302 family of current sense amplifiers from Texas Instruments. The 'Q1' suffix indicates automotive qualification, while 'A2' denotes the specific gain and accuracy grade. It complements other precision amplifiers in the portfolio designed for industrial and automotive power management. The family focuses on providing accurate current feedback for protection and control loops in electric and hybrid vehicle architectures.

Current Regulation/Management Replacement Considerations

Check for direct pin-compatible substitutes within the INA302 series that share the same gain and package. Verify if non-automotive grades like the standard INA302 meet the environmental requirements if cost is a primary driver. Ensure any replacement maintains the 0V to 36V common-mode range and bidirectional capability.