BQ2954SN

Battery Chargers Overview

The BQ2954SN is a switch-mode lithium-ion charge management integrated circuit manufactured by Texas Instruments. It supports lithium-ion and lithium-polymer battery chemistries with an adjustable output voltage and a maximum output current of 2 A. The device operates on a supply voltage ranging from 4.5 V to 5.5 V. It is housed in a 16-NSOIC surface-mount package and functions within a commercial temperature range of 0°C to +70°C.

Battery Chargers Feature Summary

• Implements switch-mode topology for efficient lithium-ion charging
• Provides programmable constant-current charge control
• Supports adjustable output voltage settings

Battery Chargers Applications

• Lithium-ion battery pack charging systems
• Lithium-polymer battery management applications
• Portable electronic device power supplies

Battery Chargers Procurement Notes

Verify component authenticity through authorized channels as the BQ2954SN has reached end-of-life status. Confirm that replacement alternatives meet all electrical and mechanical specifications required for your specific design implementation before finalizing procurement decisions.

Battery Chargers Selection Notes

Select this component for designs requiring switch-mode efficiency in compact form factors. Ensure input voltage constraints align with the specified 4.5 V to 5.5 V operating range. Consider thermal management requirements given the NSOIC-16 package limitations and the target application's ambient temperature conditions.

Battery Chargers Part Context

This part belongs to the BQ2954 series of charge management ICs. It serves as a dedicated controller for switching regulators, distinguishing it from linear chargers. The SN suffix indicates a specific tape-and-reel or tube packaging variant within the broader product family designed for high-volume manufacturing integration.

Battery Chargers Replacement Considerations

Texas Instruments recommends the BQ25672RQMR as a manufacturer-approved alternative. Verify compatibility regarding pinout, control logic, and external component requirements when transitioning to this substitute part number.