XC6808B4E48R-G

Overview

The XC6808B4E48R-G is a single-cell lithium-ion or lithium-polymer battery linear charger IC manufactured by Torex Semiconductor. It features an integrated USB interface for direct connection to standard USB ports, eliminating the need for external charge current setting resistors. The device supports selectable output voltages of 4.20V, 4.35V, and 4.40V. It incorporates battery temperature detection using an external NTC thermistor to ensure safe charging conditions. The IC includes protection against overcurrent, overtemperature, and reverse current.

Feature Summary

• Integrates a USB interface for simplified system design without external programming components
• Supports battery temperature monitoring via external NTC thermistor input
• Provides comprehensive fault protection including overcurrent, overtemperature, and reverse current safeguards

Applications

• Single-cell lithium-ion battery charging in portable electronic devices
• Lithium-polymer battery management in compact consumer electronics
• USB-powered charging solutions for mobile accessories

Procurement Notes

Verify the specific suffix code to confirm the exact output voltage selection (4.20V, 4.35V, or 4.40V) as defined in the official datasheet. Ensure compatibility with the intended USB host interface and confirm that the external NTC thermistor parameters align with the IC's detection thresholds. Cross-reference the package marking and ordering information directly with Torex Semiconductor documentation to avoid substitution errors.

Selection Notes

Select this component when a compact solution for single-cell Li-ion or Li-Po batteries is required with direct USB connectivity. It is suitable for applications where minimizing external component count is critical. Verify that the maximum operating supply voltage and thermal dissipation capabilities meet the system requirements. Consider the available output voltage options to match the specific battery chemistry being charged.

Part Context

This part belongs to the XC6808 series of linear charger ICs from Torex Semiconductor. The series is designed for single-cell lithium batteries and typically integrates USB interfaces to simplify charging circuit designs. These ICs are characterized by their small footprint and inclusion of safety features such as temperature detection and multiple fault protections, making them suitable for space-constrained portable devices.

Replacement Considerations

XC6808A4E48R-G and XC6808B3E48R-G are documented variants within the same product family offering similar functionality and pinout configurations.