INA199B2DCKR

Current Regulation/Management Overview

The INA199B2DCKR is a bidirectional current sense amplifier from Texas Instruments, housed in a six-pin SC-70 package. It features a fixed gain of 50 V/V and operates on a single supply voltage ranging from 2.7 V to 26 V. The device supports common-mode voltages up to 12 V with a typical input bias current of 28 µA. It delivers high precision with a maximum input offset voltage of 5 µV and a minimum common-mode rejection ratio of 120 dB. Operating temperatures span from -40°C to +125°C, ensuring reliability in demanding environments.

Current Regulation/Management Feature Summary

• Bidirectional sensing capability for both high-side and low-side applications
• Zero-drift architecture minimizing offset voltage drift over temperature
• High common-mode rejection ratio for accurate measurements in noisy environments

Current Regulation/Management Applications

• Battery management systems
• Load switch control circuits
• Overcurrent protection designs

Current Regulation/Management Procurement Notes

Verify the specific suffix 'KR' indicates tape and reel packaging when ordering. Confirm the B2 grade specifications match design requirements for gain accuracy and offset voltage. Ensure compatibility with the target PCB footprint for the SC-70-6 package. Check moisture sensitivity levels if storage conditions exceed manufacturer recommendations.

Current Regulation/Management Selection Notes

Select this component when bidirectional current monitoring is required within a compact form factor. The fixed 50 V/V gain suits applications where signal conditioning amplification is needed without external resistors. Consider the 12 V common-mode limit for high-side configurations. Evaluate power consumption against system battery life constraints given the quiescent current characteristics.

Current Regulation/Management Part Context

This part belongs to the INA199 family of zero-drift current sense amplifiers. Other variants include different gain options and grades such as INA199A1 or INA199B3. The family shares core architectural features but differs in precision specifications and gain settings. This specific model offers a balance of performance and size for portable electronics.

Current Regulation/Management Replacement Considerations

Direct substitutes within the same series include INA199B2DCKT (same electrical specs, different packaging format). Cross-family replacements may require gain adjustment verification. Ensure pinout compatibility and thermal performance meet original design parameters before substitution.