INA220BIDGSR

Current Regulation/Management Overview

The INA220BIDGSR is a high-accuracy, bidirectional current and power monitor manufactured by Texas Instruments. It features a two-wire I2C interface for digital communication. The device supports high-side or low-side sensing with an input voltage range of 0 V to 26 V. It operates on a single supply voltage between 3 V and 5.5 V, consuming a typical quiescent current of 700 µA. The component offers a measurement accuracy of 0.5% and functions within a temperature range of -40°C to +125°C. It is housed in a 10-VSSOP package.

Current Regulation/Management Feature Summary

• Bidirectional current monitoring capability for both sourcing and sinking scenarios
• Integrated digital I2C interface for direct connection to microcontrollers
• High precision measurement with 0.5% accuracy across the operating range
• Supports flexible placement in high-side or low-side circuit configurations

Current Regulation/Management Applications

• Battery management systems requiring precise current tracking
• Over-current protection circuits in industrial equipment
• Power delivery monitoring in portable electronic devices
• Current limiting control in motor drive applications

Current Regulation/Management Procurement Notes

Verify that the specific suffix 'DGSR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the 'B' grade designation meets the necessary accuracy specifications for the target application, as this variant differs from standard grades. Ensure compatibility with the system's I2C bus voltage levels and check for any recent product change notices regarding manufacturing updates.

Current Regulation/Management Selection Notes

Select this component when bidirectional current flow must be monitored with high accuracy in space-constrained designs. The 10-VSSOP package is suitable for surface-mount applications requiring a compact footprint. Consider the 0.5% accuracy specification against system requirements, noting that it provides higher precision than basic shunt monitors. Evaluate the 26 V common-mode voltage limit to ensure it covers the maximum expected bus voltage in the design.

Current Regulation/Management Part Context

This part belongs to the INA220 family of current and power monitors from Texas Instruments. It shares functional similarities with the INA220AIDGST but differs in accuracy grading and packaging configuration. The INA220 series is designed to replace older discrete solutions by integrating amplification, analog-to-digital conversion, and digital communication into a single chip, simplifying the design of modern power management systems.

Current Regulation/Management Replacement Considerations

INA220AIDGST is a confirmed substitute part number.