INA302A3IPW

Current Regulation/Management Overview

The INA302A3IPW is a high-precision, bi-directional current sense amplifier manufactured by Texas Instruments. It operates with a supply voltage range of 2.7 V to 5.5 V and supports common-mode voltages from 0 V to 36 V. The device features a gain of 50 V/V, a bandwidth of 550 kHz, and a slew rate of 4 V/µs. It includes dual independent comparator outputs for overlimit alerts with individually set threshold levels. Key electrical specifications include an input offset voltage of 15 µV, a CMRR of 120 dB, and a maximum gain error of 0.02%. It 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
• Integrated dual independent comparator outputs for customizable overcurrent protection alerts
• High precision performance with low input offset voltage and high common-mode rejection ratio

Current Regulation/Management Applications

• Overcurrent protection in industrial control systems
• Current monitoring in battery management systems
• Power supply regulation and management circuits

Current Regulation/Management Procurement Notes

Verify the specific suffix IPW indicates the TSSOP-14 package variant. Confirm the A3 grade corresponds to the specified 50 V/V gain and 0.02% gain error accuracy class. Ensure compatibility with the required 36 V common-mode voltage range for the target application environment. Check RoHS compliance status if restricted substances are a constraint.

Current Regulation/Management Selection Notes

Select this component when dual independent alert thresholds are required rather than a single window comparator function. Choose the A3 grade for applications demanding lower gain error compared to other accuracy grades in the series. Consider the 550 kHz bandwidth for faster transient response needs. Evaluate the 14-TSSOP package constraints against available PCB real estate.

Current Regulation/Management Part Context

This part belongs to the INA302 family of current sense amplifiers, which integrates signal conditioning with built-in fault detection. Unlike the INA303, which offers a window comparator, the INA302 provides two separate open-drain or push-pull comparator outputs. This architecture allows designers to define distinct upper and lower limits independently, offering greater flexibility in system protection strategies.

Current Regulation/Management Replacement Considerations

INA302A1IPW: Offers 20 V/V gain. INA302A2IPW: Offers 50 V/V gain but may have different accuracy grades or availability status.