INA138QPWRQ1

Current Regulation/Management Overview

The INA138QPWRQ1 is an automotive-grade current and power monitor manufactured by Texas Instruments. It supports high-side measurement with a maximum supply voltage of 36 V and a minimum of 2.7 V. The device operates within a temperature range of -40°C to +125°C and features 0.5% accuracy. Packaged in an 8-TSSOP, it draws a typical operating supply current of 60 µA.

Current Regulation/Management Feature Summary

• Supports high-side current and power monitoring applications
• Provides precise measurement with 0.5% accuracy specification
• Designed for automotive environments with AEC-Q100 qualification

Current Regulation/Management Applications

• Automotive battery management systems
• High-side current sensing in vehicle electronics
• Power monitoring in automotive control units

Current Regulation/Management Procurement Notes

Verify the component meets AEC-Q100 automotive qualification standards required for your specific application environment. Confirm that the 8-TSSOP package dimensions align with your PCB layout constraints. Ensure the 36 V maximum voltage rating covers your system's peak operating conditions without exceeding limits.

Current Regulation/Management Selection Notes

Select this component when high-side monitoring with low quiescent current is required. The 0.5% accuracy suits precision power tracking needs. Consider the 60 µA supply current for energy-efficient designs. Verify compatibility with the 2.7 V to 36 V input voltage range for your specific bus architecture.

Current Regulation/Management Part Context

This part belongs to Texas Instruments' automotive-grade current monitor family. It complements other INA series devices by offering high-side capability. The Q1 suffix indicates automotive qualification. It serves as a specialized solution for monitoring current flow in high-voltage automotive circuits compared to standard industrial logic or general-purpose amplifiers.

Current Regulation/Management Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.