INA303A1IPW

Current Regulation/Management Overview

The INA303A1IPW is a high-speed current sense amplifier from Texas Instruments, housed in a 14-TSSOP package. It features a fixed gain of 20 V/V and supports bidirectional current sensing with an input voltage range of 0V to 36V. The device operates on a supply voltage between 2.7V and 5.5V, consuming 850 uA of quiescent current. Key electrical parameters include a gain bandwidth product of 550 kHz, a common-mode rejection ratio of 120 dB, and an input offset voltage of 15 uV. It functions within a temperature range of -40°C to +125°C.

Current Regulation/Management Feature Summary

• Supports bidirectional current sensing for both high-side and low-side applications
• Provides high common-mode rejection ratio for accurate measurement in noisy environments
• Features high speed with a fast slew rate for dynamic signal processing

Current Regulation/Management Applications

• Current monitoring in power supplies and battery management systems
• Overcurrent protection circuits in industrial equipment
• Load switching control in automotive electronics

Current Regulation/Management Procurement Notes

Verify the specific suffix 'PW' indicates the non-wider TSSOP-14 package variant when sourcing. Confirm that the component meets RoHS3 standards and AEC-Q100 qualification if automotive application is required, as standard versions may differ from Q1 variants. Ensure compatibility with surface-mount assembly processes given the small outline package constraints.

Current Regulation/Management Selection Notes

Select this model for applications requiring a fixed 20 V/V gain without external resistor trimming. Consider the 36V common-mode voltage limit for high-side sensing topologies. Evaluate the 550 kHz bandwidth against system noise requirements. Compare with INA303A2IPWR if a different gain setting is necessary for the specific current range.

Current Regulation/Management Part Context

This component belongs to the INA303 series of current sense amplifiers designed by Texas Instruments. It shares architectural similarities with the INA302 but offers enhanced speed characteristics. The series is intended for precise current monitoring in space-constrained designs utilizing the 14-TSSOP footprint.

Current Regulation/Management Replacement Considerations

INA303A2IPWR (Different Gain)

Current Regulation/Management FAQ

What is the maximum common-mode voltage supported?

The INA303A1IPW supports a common-mode voltage range of 0V to 36V.

Is this component suitable for automotive applications?

Standard INA303A1IPW is not explicitly rated for automotive use; the INA303A1QPWRQ1 variant is AEC-Q100 qualified for such environments.