INA169NA/250G4

Current Regulation/Management Overview

The INA169NA/250G4 is a high-side current shunt monitor manufactured by Texas Instruments. It operates with a supply voltage range of 2.7 V to 60 V and features a single channel in a SOT-23-5 package. The device provides an output proportional to the input current, suitable for power monitoring applications. Key electrical specifications include a maximum operating temperature of +125 °C and a minimum operating temperature of -40 °C. The quiescent current is typically 125 µA, ensuring efficient power management in battery-operated systems.

Current Regulation/Management Feature Summary

• High-side measurement capability allows monitoring without breaking ground connections.
• Current output signal simplifies interface with analog-to-digital converters or microcontrollers.
• Wide common-mode voltage range supports operation across various system voltages up to 60 V.

Current Regulation/Management Applications

• Battery-powered equipment current monitoring
• Power supply overcurrent protection circuits
• Industrial process control system regulation

Current Regulation/Management Procurement Notes

Verify the specific suffix G4 indicates lead-free and RoHS compliance status against the latest manufacturer datasheet. Confirm the package marking matches the SOT-23-5 physical dimensions. Ensure the ordering part number includes the correct tape and reel quantity if bulk procurement is required. Cross-reference the manufacturer date code to verify production batch authenticity.

Current Regulation/Management Selection Notes

Select this component when high-side current sensing is required with a wide common-mode voltage range. The current output architecture is ideal for direct interfacing with ADCs without additional amplification stages. Consider the 125 µA quiescent current for low-power design constraints. Verify that the SOT-23-5 package fits the available PCB footprint and thermal requirements.

Current Regulation/Management Part Context

This device belongs to the INA169 series of current shunt monitors from Texas Instruments. It is designed for applications requiring precise current measurement in high-voltage environments. The series offers various gain options and packaging configurations to suit different board space and accuracy needs within industrial and consumer electronics markets.

Current Regulation/Management Replacement Considerations

INA168NA/250G4 is a similar high-side current monitor with comparable functionality but may differ in quiescent current specifications. Verify pin compatibility and gain accuracy before substitution. Other members of the INA16x family should be evaluated based on specific bandwidth and offset voltage requirements.