INA226AIDGSR

Current Regulation/Management Overview

The INA226AIDGSR is a high-precision shunt and power monitor featuring an I2C or SMBus compatible interface. It monitors shunt voltage drop and bus supply voltage within a common-mode range of 0V to 36V, independent of the supply voltage. Powered by a single 2.7V to 5.5V source with a typical current consumption of 330µA, it integrates programmable calibration, conversion time, and averaging functions. These features enable direct digital reading of current in amperes and power in watts. The device operates from -40°C to +125°C and supports up to 16 programmable addresses on the I2C interface.

Current Regulation/Management Feature Summary

• Provides direct digital output for current and power measurements through internal multiplication of calibrated shunt and bus data.
• Supports bidirectional current sensing at either high-side or low-side positions relative to the load.
• Enables precise system monitoring via configurable averaging and conversion timing parameters.

Current Regulation/Management Applications

• Server power distribution monitoring
• Telecommunications equipment power management
• Battery charger circuit supervision
• Test and measurement instrumentation

Current Regulation/Management Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm package type and temperature grade. Ensure compatibility with existing I2C address configurations in the target design. Confirm RoHS compliance status matches project requirements. Validate that the operating voltage range aligns with the system's power rails. Check for any recent product change notifications affecting assembly sites or specifications.

Current Regulation/Management Selection Notes

Select this component when high accuracy and direct digital power readout are required without external microcontroller processing overhead. Consider the 36V common-mode limit for high-voltage bus monitoring applications. Evaluate the need for programmable averaging to reduce noise in sensitive measurement environments. Compare power consumption requirements against other family members if battery life is critical.

Current Regulation/Management Part Context

This part belongs to the INA22x series of current and power monitors from Texas Instruments. It offers higher precision compared to earlier generations like the INA220. The device simplifies system design by eliminating the need for separate analog-to-digital converters for current sensing. It is widely used in industrial and commercial power management systems requiring reliable monitoring.

Current Regulation/Management Replacement Considerations

INA226AIDGSRG4 is a verified equivalent variant within the same manufacturer lineup.