INA231AIYFFT

Current Regulation/Management Overview

The INA231AIYFFT is a current shunt and power monitor manufactured by Texas Instruments, housed in a 12-DSBGA package. It features an I2C-compatible interface with 16 programmable addresses for bidirectional high-side or low-side measurements. The device monitors bus voltages from 0V to 28V and operates on a single supply of 2.7V to 5.5V. It provides direct reading of current and power values through internal multiplication and programmable calibration, reducing host processor load. Key electrical specifications include a maximum gain error of 0.5% and a maximum offset voltage of 50μV.

Current Regulation/Management Feature Summary

• Supports bidirectional current and power monitoring via I2C interface with 16 programmable addresses
• Enables direct digital readout of current and power values through integrated internal multiplication and programmable calibration
• Provides enhanced protection by asserting the ALERT pin when sensed values exceed user-programmable thresholds

Current Regulation/Management Applications

• High-side or low-side current sensing in industrial systems
• Power management monitoring in battery-powered devices
• Over-current protection in server and telecom infrastructure

Current Regulation/Management Procurement Notes

Verify component authenticity against official Texas Instruments documentation due to the End-of-Life status indicated in public records. Confirm that the specific suffix matches the required operational mode, as variations exist between continuous conversion and shutdown startup behaviors within the family. Ensure compatibility with existing PCB footprints for the 12-DSBGA package during procurement planning.

Current Regulation/Management Selection Notes

Select this component for applications requiring precise bidirectional current measurement with minimal host CPU intervention. The integrated calibration and averaging options simplify system design compared to discrete solutions. Consider the available address space if multiple monitors are used on a single I2C bus. Evaluate the trade-off between the higher accuracy of the 'A' grade variant and potential cost implications relative to lower-grade alternatives.

Current Regulation/Management Part Context

This part belongs to the INA231 family of current monitors, which distinguishes itself by offering direct digital reporting of both current and power. Unlike basic shunt amplifiers, it includes internal processing for unit conversion. The AIYFFT designation specifies the temperature grade and packaging configuration within the broader product line, aligning with industrial operating ranges.

Current Regulation/Management Replacement Considerations

INA231AIYFFR is a confirmed substitute part number within the same manufacturer's portfolio.