INA285AQDRQ1

Current Regulation/Management Overview

The INA285AQDRQ1 is an automotive-grade bidirectional current and power monitor manufactured by Texas Instruments. It supports high-side or low-side sensing with a common-mode voltage range of -14 V to +80 V. The device operates from a single supply voltage between 2.7 V and 18 V, drawing a typical quiescent current of 600 µA. It provides a linear output proportional to the sensed current, maintaining an accuracy of 1.4% over the specified temperature range. Designed for AEC-Q100 qualification, it functions reliably within an operating temperature range of -40°C to +125°C and is available in an SOIC-8 surface-mount package.

Current Regulation/Management Feature Summary

• Bidirectional current monitoring capability for both sourcing and sinking applications
• Wide common-mode voltage range supporting high-voltage systems up to 80 V
• Linear voltage output directly proportional to differential input voltage
• Automotive qualification compliant with AEC-Q100 standards

Current Regulation/Management Applications

• Battery management systems in electric vehicles
• Motor control circuits
• High-side current sensing in power distribution units

Current Regulation/Management Procurement Notes

Verify the specific suffix against official documentation to confirm exact packaging and tape-and-reel specifications. Ensure the component meets the required AEC-Q100 grade for your target automotive application. Cross-reference the datasheet revision date to validate parameter consistency. Confirm thermal performance requirements align with the SOIC-8 package limitations under your specific load conditions.

Current Regulation/Management Selection Notes

Select this component when bidirectional sensing is required within a wide common-mode voltage window. The low quiescent current makes it suitable for battery-powered automotive subsystems. Verify that the 1.4% accuracy meets system tolerance requirements. Consider the SOIC-8 footprint constraints during PCB layout design to ensure proper thermal dissipation and signal integrity.

Current Regulation/Management Part Context

This part belongs to the INA28x-Q1 family of current monitors designed specifically for automotive environments. It complements other Texas Instruments power management solutions by providing precise feedback for protection and regulation loops. The series is engineered to withstand harsh automotive electrical transients while maintaining measurement fidelity across extended temperature ranges.

Current Regulation/Management Replacement Considerations

Check the INA28x-Q1 functional safety documentation for potential pin-compatible alternatives within the same family. Verify if non-automotive grades meet reliability requirements if automotive qualification is not mandatory.