INA219AIDCNRG4

Current Regulation/Management Overview

The INA219AIDCNRG4 is a bi-directional current shunt and power monitor from Texas Instruments' Zero-Drift series. It features a high-side measurement capability with a common-mode voltage range of 0V to 26V. The device provides an analog output proportional to the sensed current, offering a gain error accuracy of ±0.5%. It operates on a single supply voltage between 2.7V and 5.5V, drawing a typical supply current of 400µA. The component is housed in an 8-pin SOT-23 package and supports an operating temperature range from -40°C to +85°C.

Current Regulation/Management Feature Summary

• Zero-drift architecture ensures high precision without requiring external calibration
• Bi-directional sensing allows accurate measurement of current flow in both directions
• Integrated low-side reference enables direct connection to microcontrollers

Current Regulation/Management Applications

• Portable battery management systems
• Over-current protection and power monitoring in industrial equipment
• Current limiting in hot-swappable applications

Current Regulation/Management Procurement Notes

Verify the specific suffix 'G4' indicates lead-free compliance and RoHS standards during procurement. Confirm the package type matches the design requirements. Ensure the operating environment stays within the specified temperature limits for optimal performance.

Current Regulation/Management Selection Notes

Select this component when high accuracy is required without complex calibration routines. It is suitable for applications needing bidirectional current monitoring within a 26V common-mode range. Consider the SOT-23 package size for space-constrained designs.

Current Regulation/Management Part Context

This part belongs to the INA219 family of current monitors. It shares core functionalities with other variants in the series but may differ in temperature ranges or packaging options. The Zero-Drift technology distinguishes it from standard amplifiers by minimizing offset voltage drift over time and temperature.

Current Regulation/Management Replacement Considerations

Check for compatible alternatives within the INA219 series that match the required temperature grade and package. Verify pin compatibility if substituting with other current sense amplifiers.