BQ2954SNTRG4

Battery Chargers Overview

The BQ2954SNTRG4 is a switch-mode lithium-ion charge controller manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an output current of 2 A. The device is housed in a 16-pin SOIC package with surface-mount installation. It functions as a battery management IC for lithium-ion and lithium-polymer batteries, featuring adjustable output voltage capabilities.

Battery Chargers Feature Summary

• Implements switch-mode charging architecture for lithium-ion and lithium-polymer battery systems.
• Provides programmable charging current control via external components.
• Integrates adjustable output voltage regulation for flexible battery configurations.

Battery Chargers Applications

• Lithium-ion battery fast charging applications
• Portable electronic device power management
• Battery management system design

Battery Chargers Procurement Notes

Verify the specific suffix G4 indicates lead-free compliance and RoHS certification status before procurement. Confirm the 16-SOIC package dimensions match the target PCB footprint. Ensure the operating temperature range aligns with the intended environmental conditions. Cross-reference the manufacturer datasheet for any recent product change notifications or discontinuation updates.

Battery Chargers Selection Notes

Select this component when a switch-mode topology is required for higher efficiency compared to linear alternatives. Consider the 2 A output capability and 4.5 V to 5.5 V input range against system power requirements. Evaluate the 16-SOIC package constraints for space-limited designs. Verify compatibility with the specific lithium-ion or lithium-polymer chemistry being managed.

Battery Chargers Part Context

This part belongs to the BQ2954 series of battery chargers from Texas Instruments. It serves as a specialized integrated circuit for managing the charging cycle of single-cell lithium-based batteries. The device integrates necessary control logic for switch-mode operation, distinguishing it from simpler linear charge controllers in the same product family.

Battery Chargers Replacement Considerations

The BQ2954SNTR is a direct functional equivalent within the same series. The BQ25672RQMR is listed as a manufacturer-recommended alternative, though it may differ in interface or feature set. Verify pin-to-pin compatibility and electrical specifications before substituting.

Battery Chargers FAQ

Is the BQ2954SNTRG4 compatible with lithium-polymer batteries?

Yes, the device specification explicitly lists support for both Lithium-ion and Lithium Polymer battery types.

What is the maximum supply voltage for this controller?

The maximum operating supply voltage is specified as 5.5 V.