INA253A1IPW

Overview

The INA253A1IPW is a high-side current sense amplifier from Texas Instruments, housed in a TSSOP-20 package. It operates with a supply voltage range of 2.7 V to 5.5 V and supports common-mode voltages from -4 V to 80 V. The device features a gain of 100 mA/V, a gain error of 0.05%, and an input bias current of 90 uA. It offers a 3 dB bandwidth of 350 kHz, a CMRR of 125 dB, and an input voltage noise density of 40 nV/sqrt Hz. Operating temperatures range from -40°C to +125°C.

Feature Summary

• Provides bidirectional current sensing capabilities for high-side applications.
• Features high precision with low gain error and high common-mode rejection ratio.
• Supports wide common-mode voltage range including negative values.

Applications

• Automotive battery monitoring systems
• Motor control circuits
• Power supply current monitoring

Procurement Notes

Verify the specific suffix IPW corresponds to the TSSOP-20 package and standard operating temperature range. Confirm AEC-Q100 qualification status if automotive grade is required, as indicated by similar Q1 variants. Check datasheet for humidity sensitivity handling requirements during assembly.

Selection Notes

Select this component when high accuracy and wide common-mode voltage coverage are needed. The 350 kHz bandwidth suits most general-purpose current sensing tasks. Ensure the TSSOP-20 footprint fits the PCB layout constraints compared to smaller packages like SOIC or WSON.

Part Context

Part of the INA253 family of high-side current sense amplifiers designed for robust performance in noisy environments. The IPW suffix denotes the plastic small-outline package variant. It complements other TI current sense solutions offering different voltage ranges or integration levels.

Replacement Considerations

INA253A1PWR: Same electrical specifications but in a PW (TSSOP) package instead of IPW (TSSOP). Verify pin compatibility and thermal performance differences between package types before substitution.