INA250A4PW

Overview

The INA250A4PW is a precision current sense amplifier from Texas Instruments, housed in a 16-pin TSSOP package. It supports bidirectional current monitoring with a supply voltage range of 2.7 V to 36 V and operates within a temperature range of -40°C to +125°C. The device features a gain bandwidth product of 50 kHz and a maximum quiescent current of 350 µA. It offers an accuracy of 0.3% and includes an integrated shunt resistor for simplified PCB design.

Feature Summary

• Integrated shunt resistor eliminates external components
• Bidirectional measurement capability for high or low side sensing
• High common-mode voltage tolerance up to 36 V

Applications

• Industrial process control systems
• Motor drive current monitoring
• Power supply overcurrent protection

Procurement Notes

Verify the specific suffix 'PW' confirms the 16-lead TSSOP package variant. Confirm the 'A4' grade matches required accuracy specifications. Check moisture sensitivity levels for reflow soldering profiles. Ensure the component is sourced from authorized distributors to guarantee authenticity and traceability.

Selection Notes

Select this part when board space is limited due to the integrated shunt design. Choose the A4 grade for applications requiring tighter accuracy tolerances. Consider the 36 V common-mode range for higher voltage bus monitoring. Verify thermal performance requirements against the TSSOP package capabilities.

Part Context

This component belongs to the INA250 family of current monitors. It differs from similar devices by integrating the sense resistor directly on-chip. This integration reduces footprint and improves reliability compared to discrete solutions. The family targets industrial and automotive applications requiring precise current feedback.