BQ2011KSN-D121

Battery Management Overview

The BQ2011KSN-D121 is a gas gauge integrated circuit designed for nickel-cadmium (NiCd) batteries. It provides accurate measurement of available charge in rechargeable batteries, specifically targeting high discharge rate applications exceeding 5A and small pack capacities under 2Ah. The device is housed in a 16-pin SOIC package.

Battery Management Feature Summary

• Conservative and repeatable measurement of available charge in rechargeable batteries
• Designed for portable equipment such as power tools

Battery Management Applications

• Power tools with high discharge rates
• Portable equipment requiring NiCd battery monitoring
• Small capacity battery packs under 2Ah

Battery Management Procurement Notes

Verify component status as the BQ2011KSN-D121 is listed as an obsolete product. Confirm availability through authorized distributors or secondary market sources. Ensure compatibility with existing NiCd battery management designs before procurement.

Battery Management Selection Notes

Select this IC for NiCd battery systems requiring precise state-of-charge estimation under high current loads. It is suitable for applications where conservative charge measurement is prioritized to prevent over-discharge in portable devices like cordless power tools.

Battery Management Part Context

This component belongs to Texas Instruments' battery management portfolio, originally developed by Benchmarq. It serves as a specialized gas gauge solution for specific electrochemical chemistries, distinct from lithium-ion or lead-acid monitoring devices.

Battery Management Replacement Considerations

As an obsolete part, direct substitutes may not be readily available. Evaluate newer TI gas gauge ICs compatible with NiCd chemistry and similar pinouts or functional requirements for design upgrades.