INA168NA/250

Current Regulation/Management Overview

The INA168NA/250 is a high-side current shunt monitor manufactured by Texas Instruments, designed for precise current sensing in power management systems. It operates within an input voltage range of 2.7 V to 60 V and supports single-supply operation. The device features a low quiescent current of 60 uA and maintains an accuracy of 0.5%. It is housed in a compact SOT-23-5 surface-mount package and functions reliably across an extended temperature range from -40°C to +125°C.

Current Regulation/Management Feature Summary

• Enables high-side current monitoring with direct connection to the positive supply rail
• Provides accurate current measurement with specified 0.5% precision
• Operates efficiently with low quiescent current consumption
• Supports wide common-mode input voltage ranges up to 60 V

Current Regulation/Management Applications

• Battery protection circuits
• Power distribution units
• Overcurrent protection systems

Current Regulation/Management Procurement Notes

Verify the specific suffix /250 indicates the standard tape-and-reel packaging quantity of 250 units when ordering. Confirm that the component meets RoHS3 compliance requirements for your assembly process. Ensure the selected variant matches the required operating temperature range and package type for your PCB design constraints.

Current Regulation/Management Selection Notes

Select this component when high-side sensing is required with a maximum common-mode voltage of 60 V. Consider the 60 uA quiescent current for battery-powered applications where power efficiency is critical. Verify that the SOT-23-5 package fits your board space limitations and that the 0.5% accuracy meets your system's measurement tolerance requirements.

Current Regulation/Management Part Context

This part belongs to the INA168 series of current shunt monitors from Texas Instruments. It shares functional similarities with other devices in the family but is distinguished by its specific voltage range and accuracy specifications. The /250 suffix denotes the specific reel packaging configuration used for manufacturing and distribution.

Current Regulation/Management Replacement Considerations

The INA138NA/250 is listed as a similar alternative. Note that the INA138 has a lower maximum input voltage of 36 V compared to the 60 V limit of the INA168. Verify that the reduced voltage rating is acceptable for your application before substitution.