INA226AQDGSRQ1

Current Regulation/Management Overview

The INA226AQDGSRQ1 is an automotive-grade current and power monitor manufactured by Texas Instruments. It features a 16-bit analog-to-digital converter for high-precision measurements of shunt voltage, bus voltage, and power. The device supports I²C communication and operates with a supply voltage range of 2.7 V to 5.5 V. It accommodates input voltages up to 36 V and offers configurable integration times for noise filtering. The component is designed for robust performance in demanding environments, maintaining accuracy across the specified temperature range.

Current Regulation/Management Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for reliability
• Simultaneous measurement of shunt voltage, bus voltage, and calculated power
• Configurable digital output reporting with programmable averaging modes

Current Regulation/Management Applications

• Electric vehicle battery management systems
• Motor control current monitoring
• Charging station power regulation

Current Regulation/Management Procurement Notes

Verify the specific suffix 'Q1' confirms automotive grade status against the official datasheet. Ensure the package designation matches the required PCB footprint. Confirm RoHS compliance and lead time requirements with authorized distributors prior to ordering.

Current Regulation/Management Selection Notes

Select this component when automotive reliability and high precision are required. Compare total error budget against application needs. Verify that the I²C address configuration meets system constraints. Check thermal performance under maximum load conditions.

Current Regulation/Management Part Context

This part belongs to the INA226 family of current shunt and power monitors. It extends the standard industrial version with automotive-specific qualifications. The family provides a scalable solution for monitoring applications requiring accurate DC current sensing.

Current Regulation/Management FAQ

Is the INA226AQDGSRQ1 suitable for high-voltage bus monitoring?

Yes, it supports common-mode input voltages up to 36 V, allowing direct connection to high-side or low-side shunts in various bus architectures.

What interface does the INA226AQDGSRQ1 use for data transfer?

It utilizes a standard two-wire I²C serial interface for communication with the host microcontroller.