INA220BQDGSRQ1

Current Regulation/Management Overview

The INA220BQDGSRQ1 is a bidirectional current and power monitor with an I2C interface, designed for automotive applications under AEC-Q100 qualification. It operates on a single supply voltage ranging from 3 V to 5.5 V. The device supports high-side or low-side sensing with a common-mode voltage range of 0 V to 26 V. Key electrical characteristics include a maximum supply current of 700 uA and an accuracy of 0.5%. It features a 10-pin MSOP package and functions within a temperature range of -40°C to +125°C.

Current Regulation/Management Feature Summary

• Provides bidirectional current and power monitoring capabilities via an I2C digital interface.
• Supports both high-side and low-side current sensing configurations.
• Delivers high measurement accuracy suitable for precise system monitoring.
• Operates reliably across extended industrial and automotive temperature ranges.

Current Regulation/Management Applications

• Automotive battery management systems
• Current monitoring in electric vehicle powertrains
• Industrial motor control current sensing
• Power distribution unit monitoring

Current Regulation/Management Procurement Notes

Verify the specific suffix 'BQ' against the official Texas Instruments datasheet to confirm the exact accuracy grade and package variant. Ensure the component meets AEC-Q100 requirements for your target automotive application. Cross-reference the ordering part number with manufacturer documentation to avoid confusion with non-automotive grades or different package types such as DGST.

Current Regulation/Management Selection Notes

Select this component when digital I2C communication is required for real-time current and power data acquisition. It is suitable for designs needing high accuracy (0.5%) and operation up to 26 V common-mode voltage. Consider the 700 uA supply current for low-power constraints. Verify that the MSOP-10 package fits the PCB layout constraints compared to alternative packages like VSSOP.

Current Regulation/Management Part Context

This part belongs to the INA220 family of current and power monitors. It shares functional similarities with other devices in the series but is distinguished by its automotive qualification (Q1) and specific accuracy grade (B). It serves as a digital alternative to analog current sense amplifiers, offering integrated power calculation and programmable averaging.

Current Regulation/Management Replacement Considerations

Check for INA220AIDGSRQ1 for similar functionality with potentially different accuracy grades. Verify compatibility with INA226 or INA228 if additional features like fault logging are needed. Ensure pinout and register compatibility before substituting with non-TI equivalents.