INA303A2QPWRQ1

Current Regulation/Management Overview

The INA303A2QPWRQ1 is a high-precision, bi-directional current sense amplifier qualified under AEC-Q100 standards for automotive reliability. It operates with a single supply voltage ranging from 2.7 V to 5.5 V and supports common-mode voltages up to 36 V. Key electrical specifications include a gain error of 0.05%, an input offset voltage of 10 µV, and a bandwidth of 440 kHz. The device features a slew rate of 4 V/µs and draws 850 µA of quiescent current. It is housed in a 14-TSSOP package and functions within a temperature range of -40°C to +125°C.

Current Regulation/Management Feature Summary

• Bi-directional current sensing capability supporting both high-side and low-side configurations
• Automotive qualification compliant with AEC-Q100 standards for enhanced reliability
• High precision performance characterized by low input offset voltage and minimal gain error

Current Regulation/Management Applications

• Automotive battery management systems
• Industrial motor control circuits
• Power distribution units in vehicle electronics

Current Regulation/Management Procurement Notes

Verify the specific suffix 'Q1' confirms AEC-Q100 automotive qualification status. Ensure the 'A2' grade matches required accuracy specifications for gain error and offset voltage. Confirm the 'PWR' package designation corresponds to the 14-TSSOP form factor. Cross-reference the manufacturer part number directly with official Texas Instruments documentation to validate revision levels and pinout compatibility before integration into design files.

Current Regulation/Management Selection Notes

Select this component when automotive reliability certification is mandatory for the application. Choose this model over non-qualified variants if operation in harsh thermal environments exceeding standard industrial limits is required. Consider this part for designs needing precise bi-directional measurement without external calibration due to its inherent low offset characteristics. Evaluate power budget constraints against the 850 µA quiescent current draw during system architecture planning.

Current Regulation/Management Part Context

This device belongs to the INA30x-Q1 family of current sense amplifiers designed specifically for automotive applications. It shares architectural similarities with other members of the series but offers distinct performance metrics tailored for high-reliability environments. The family provides solutions for monitoring current flow in critical vehicle subsystems where precision and durability are paramount.

Current Regulation/Management Replacement Considerations

Direct substitutes include other AEC-Q100 qualified current sense amplifiers from Texas Instruments within the same product family that meet identical pinout and electrical specification requirements.