INA199A1DCKR

Current Regulation/Management Overview

The INA199A1DCKR is a single-channel, bi-directional current sense amplifier manufactured by Texas Instruments. It features a fixed gain of 50 V/V and operates within a supply voltage range of 2.7 V to 26 V. The device utilizes an SC-70-6 surface-mount package and supports low-side and high-side sensing. Key electrical characteristics include a maximum input offset voltage of 5 µV, a typical gain bandwidth product of 80 kHz, and a minimum common-mode rejection ratio of 100 dB. It functions reliably across an extended temperature range from -40°C to +125°C.

Current Regulation/Management Feature Summary

• Bi-directional operation enables accurate measurement of current flow in both directions.
• Zero-drift architecture ensures stable performance with minimal offset voltage drift over time and temperature.
• Supports both low-side and high-side current sensing configurations for flexible system integration.

Current Regulation/Management Applications

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

Current Regulation/Management Procurement Notes

Verify the specific suffix 'DCKR' corresponds to the SC-70-6 tape and reel packaging configuration. Confirm RoHS compliance status and REACH SVHC declarations against the latest manufacturer documentation prior to procurement. Ensure the ordering part number matches the required gain accuracy grade and package type for your design specifications.

Current Regulation/Management Selection Notes

Select this component when a compact solution for bidirectional current monitoring is required. The fixed 50 V/V gain suits applications where moderate amplification is sufficient. Consider the SC-70-6 package constraints for PCB layout. Verify that the 2.7 V minimum supply voltage aligns with the system's power rails and that the 80 kHz bandwidth meets the signal frequency requirements.

Current Regulation/Management Part Context

This part belongs to the INA199 series of zero-drift current sense amplifiers. The 'A1' designation indicates a specific gain accuracy grade of ±1.5% at the fixed 50 V/V gain setting. The 'DCKR' suffix identifies the physical package as SC-70-6 and the shipping method as tape and reel. This series is designed for precision applications requiring high common-mode rejection and low offset.

Current Regulation/Management Replacement Considerations

Other variants within the INA199 family, such as INA199A2 or INA199A3, offer different gain settings (100 V/V or 200 V/V) but maintain similar pinouts and functionality. Ensure the replacement part matches the required gain and accuracy grade. Package variations like RSWR (UQFN-10) require schematic and footprint adjustments.