XC6808B3E28R-G

Overview

The XC6808B3E28R-G is a single-cell lithium-ion/polymer battery linear charger IC from the Torex XC680x series. It features an integrated USB interface and supports a maximum charging current of 40mA. The device operates with a supply voltage up to 6V and includes programmable constant-current charging capabilities. It provides comprehensive fault protection mechanisms, including overcurrent, overtemperature, and reverse current safeguards. The component is designed for surface-mount installation in a compact 6-USP-B07 package measuring 1.8x2 mm.

Feature Summary

• Integrates a dedicated USB interface for direct connection to standard USB power sources without additional protocol controllers.
• Incorporates battery temperature detection functionality to monitor cell conditions during the charging cycle.
• Provides multi-layered safety protections against overcurrent, thermal overload, and reverse current flow.

Applications

• Charging single-cell lithium-ion batteries in portable electronic devices
• Power management for USB-powered consumer electronics
• Battery charging systems requiring integrated thermal monitoring

Procurement Notes

Verify the specific suffix E28 corresponds to the required termination or packaging configuration before ordering. Confirm that the 6-USP-B07 footprint matches the target PCB layout. Ensure the design accommodates the 40mA maximum current limit and 6V absolute maximum rating. Cross-reference the RoHS3 compliance status if environmental regulations apply to the final assembly.

Selection Notes

Select this model when a low-current solution is sufficient for small capacity cells. The integrated USB interface simplifies design compared to generic chargers requiring external logic. Consider the 6-USP-B07 package size constraints for high-density layouts. Verify that the 40mA charge rate aligns with the battery's specified C-rate requirements.

Part Context

This component belongs to the XC6808 family of single-cell linear chargers manufactured by Torex Semiconductor. The series is characterized by its integration of USB connectivity and temperature sensing features. Other variants in the lineup differ primarily in fixed charge currents or specific termination codes, while maintaining the same core architecture and protection features.

Replacement Considerations

XC6808A4E28R-G: Similar package and interface but may differ in specific electrical characteristics or feature set.

FAQ

Does the XC6808B3E28R-G support fast charging protocols?

No, it is a linear charger with a fixed maximum current of 40mA and does not implement complex fast charging algorithms.

What is the purpose of the B3 suffix in the part number?

The suffix indicates specific manufacturing or packaging variations defined by Torex; consult the datasheet for exact parameter definitions associated with this code.