BQ20851DBT

Battery Management Overview

The BQ20851DBT is a battery monitor IC designed for Lithium Ion and Polymer chemistries. It supports 3 to 4 cells and features a serial interface. The device operates within a temperature range of -20°C to 85°C (TA). It is housed in a 38-TFSOP package with a width of 4.40mm. The component is lead-free and RoHS compliant.

Battery Management Feature Summary

• Integrated battery monitoring function for lithium-based chemistries
• Supports serial communication interface
• Designed for multi-cell configurations

Battery Management Applications

• Lithium Ion battery systems
• Lithium Polymer battery management
• Battery monitoring circuits

Battery Management Procurement Notes

Verify the manufacturer designation carefully, as sources list both Benchmarq and Texas Instruments for this part number. Confirm the specific datasheet version matches your design requirements. Ensure the 38-TFSOP package dimensions align with your PCB layout constraints before finalizing procurement.

Battery Management Selection Notes

Select this component when monitoring 3 to 4 cell lithium batteries is required. The serial interface suits applications needing digital data exchange. Verify thermal performance within the specified -20°C to 85°C operating range for your specific enclosure environment.

Battery Management Part Context

This component belongs to the power management integrated circuit category. It serves as a dedicated battery monitor rather than a full gas gauge or protection controller. The 38-pin TSSOP/TFSOP package allows for surface mount assembly in compact electronic designs.

Battery Management Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Cross-reference pinouts and electrical specifications carefully if considering alternative manufacturers.