INA250A1PWR

Overview

The INA250A1PWR is a bidirectional current sense amplifier manufactured by Texas Instruments, housed in a 16-pin TSSOP package. It operates on a single supply voltage ranging from 2.7 V to 36 V with a maximum quiescent current of 350 uA. The device provides an output proportional to the differential voltage across a shunt resistor, supporting both high-side and low-side sensing configurations. Key electrical specifications include a gain bandwidth product of 50 kHz, a slew rate of 0.2 V/us, and an accuracy of 0.3%. It functions within a temperature range of -40°C to +125°C.

Feature Summary

• Supports bidirectional current measurement for monitoring flow in both directions.
• Capable of operating in both high-side and low-side circuit topologies.
• Provides a voltage output directly proportional to the sensed current.

Applications

• Industrial process control systems
• Power supply current monitoring
• Battery management systems

Procurement Notes

Verify the specific suffix 'A1' corresponds to the required accuracy grade and pinout configuration before procurement. Confirm that the TSSOP-16 package dimensions align with the target PCB footprint. Ensure the operating environment remains within the specified -40°C to +125°C thermal limits to maintain performance integrity.

Selection Notes

Select this component when bidirectional sensing capability is required alongside support for high-voltage common-mode signals up to 36 V. The low quiescent current makes it suitable for power-sensitive applications. Consider the 0.3% accuracy specification against system tolerance requirements. Evaluate the 16-pin TSSOP package constraints relative to available board space.

Part Context

This part belongs to the INA250 series of precision current sense amplifiers from Texas Instruments. The series is designed for applications requiring accurate current monitoring in industrial and automotive environments. The 'A1' designation typically indicates a specific accuracy bin or gain setting within the family, while 'PWR' denotes the plastic small-outline package variant.

Replacement Considerations

Consult official Texas Instruments documentation for verified cross-reference part numbers. Generic substitutes may not match the bidirectional functionality or 36 V common-mode voltage rating. Verify pin compatibility and accuracy specifications before considering alternative components.