XC6808B4D18R-G

Overview

The XC6808B4D18R-G is a single-cell lithium-ion or lithium-polymer battery linear charger IC manufactured by Torex Semiconductor. It features an integrated battery temperature detection function to ensure safe charging conditions. The device supports multiple fixed output voltage options, specifically 4.20V, 4.35V, and 4.40V, selectable via external configuration. It operates within a supply voltage range of up to 6V and includes comprehensive fault protection mechanisms such as overcurrent, overtemperature, and reverse current prevention.

Feature Summary

• Integrated battery temperature detection circuit for monitoring cell thermal status during the charging process
• Supports configurable fixed output voltages including 4.20V, 4.35V, and 4.40V for various single-cell chemistries
• Built-in protection against overcurrent, overtemperature, and reverse current flow to safeguard the battery and system

Applications

• Single-cell lithium-ion battery charging in portable consumer electronics
• Lithium-polymer battery management in compact mobile devices
• Temperature-aware charging systems requiring integrated thermal monitoring

Procurement Notes

Verify the specific suffix code to confirm the exact output voltage setting (4.20V, 4.35V, or 4.40V) required for your application, as this parameter is fixed per part number. Ensure the package type matches your PCB layout requirements. Confirm RoHS compliance status with the supplier prior to ordering. Check for any recent obsolescence notices from Torex Semiconductor.

Selection Notes

Select this component when designing circuits for single-cell Li-ion or Li-Po batteries that require precise voltage regulation and thermal safety features. The choice between 4.20V, 4.35V, and 4.40V outputs depends on the specific battery chemistry and manufacturer specifications. Consider the maximum input voltage capability and the need for reverse current protection when evaluating system power architecture.

Part Context

This part belongs to the XC6808 series of linear charger ICs from Torex Semiconductor. The series is designed for low-power, space-constrained applications involving single-cell rechargeable batteries. The XC6808B4D18R-G variant specifically denotes a particular output voltage configuration within this family, distinguished by its internal reference settings and temperature detection integration.

Replacement Considerations

Direct substitutes may include other XC6808 variants with different voltage suffixes if the output voltage requirement differs. Cross-referencing with similar Torex linear chargers like the XC6804 series is possible but requires verification of pin compatibility and current capabilities.