INA271SHKQ

Current Regulation/Management Overview

The INA271SHKQ is a high-temperature current-shunt monitor from Texas Instruments, designed for voltage output applications. It features a wide common-mode range of -16 V to +80 V and operates on a supply voltage between 2.7 V and 18 V. The device offers a gain of 20 V/V with a gain error of 0.2% and a CMRR of 100 dB. It functions within an extended temperature range of -55°C to +210°C. Key electrical parameters include a GBP of 130 kHz, input bias voltage of 2.5 mV, and quiescent current of 950 uA. The component is available in an 8-pin HKQ package.

Current Regulation/Management Feature Summary

• Supports high-side and low-side current sensing with a wide common-mode voltage range.
• Engineered for extreme thermal environments with operation up to 210°C.
• Provides accurate voltage output proportional to shunt drop with fixed 20 V/V gain.

Current Regulation/Management Applications

• Industrial motor control systems requiring high-temperature reliability
• Automotive power management circuits
• High-voltage battery monitoring in electric vehicles

Current Regulation/Management Procurement Notes

Verify the specific suffix SHKQ against the official datasheet to confirm the 8-pin HKQ package and high-temperature rating. Ensure the design accounts for the specified operating temperature range of -55°C to +210°C. Confirm that the required accuracy meets the ±4.6% specification under your application conditions. Check for RoHS compliance status in the latest product documentation before finalizing procurement.

Current Regulation/Management Selection Notes

Select this component when designing circuits that require current sensing in high-voltage or high-temperature environments. The fixed 20 V/V gain simplifies signal conditioning but limits flexibility compared to programmable amplifiers. Consider the 100 dB CMRR for noise rejection in noisy industrial settings. Verify that the 8-pin HKQ package fits your PCB layout constraints and thermal management strategy.

Current Regulation/Management Part Context

The INA271 series consists of precision current-shunt monitors designed for robust performance in demanding applications. The SHKQ variant specifically targets high-temperature operations, distinguishing it from standard commercial grade parts. This family provides a cost-effective solution for monitoring current in power electronics where space and thermal constraints are critical factors in system design.

Current Regulation/Management Replacement Considerations

Public confirmed substitute part numbers: None identified in provided documentation.