XC6808BND48R-G

Overview

The XC6808BND48R-G is a single-cell lithium-ion battery linear charger IC manufactured by Torex Semiconductor. It features an integrated battery temperature detection function using an external NTC thermistor to ensure safe charging conditions. The device supports input voltages up to 5.5V and provides a regulated charging current of up to 1A. It utilizes a constant-current/constant-voltage (CC/CV) charging profile with automatic termination when the charge current drops below a preset threshold. The part number suffix '48' indicates a specific output voltage setting, typically corresponding to 4.2V or similar standard cell voltages depending on the exact datasheet revision, though the provided reference text explicitly links the XC6808 series to 4.20V/4.35V/4.40V options.

Feature Summary

• Integrated battery temperature monitoring via external NTC thermistor for enhanced safety
• Constant-current/constant-voltage charging architecture with automatic termination
• Supports high-speed charging with up to 1A output current capability
• Includes thermal regulation to reduce charging current if die temperature exceeds limits

Applications

• Single-cell lithium-ion battery charging in portable electronic devices
• Mobile phone and smartphone power management systems
• Digital camera and camcorder battery packs
• Portable medical equipment requiring safe Li-ion charging

Procurement Notes

Verify the exact output voltage setting associated with the '48' suffix against the official Torex Semiconductor datasheet, as suffixes can vary by region or revision. Confirm package type availability and ensure the external NTC thermistor specifications match the IC's temperature detection thresholds. Check for RoHS compliance status and lead-free manufacturing certifications required for your assembly process.

Selection Notes

Select this component when a compact, single-cell Li-ion charger with built-in thermal protection is required. Ensure the application environment stays within the specified operating temperature range. Verify that the external components, particularly the programming resistor for current setting and the NTC thermistor, are compatible with the IC's internal references. Consider the PCB space constraints as the device is available in small packages like SOT-25 or UDFN.

Part Context

The XC6808 series belongs to Torex Semiconductor's lineup of dedicated linear chargers for single-cell lithium batteries. These ICs are designed to replace discrete charging solutions, offering higher integration and smaller footprint. The series emphasizes safety through temperature monitoring and thermal regulation, making it suitable for consumer electronics where reliability is critical. The BND suffix typically denotes a specific tape-and-reel packaging configuration for automated assembly.

Replacement Considerations

Direct replacements may include other Torex XC6808 variants with different voltage suffixes if the output voltage requirement differs. Cross-brand alternatives should be evaluated based on pin compatibility, current rating, and package dimensions. Verify that any substitute also includes NTC temperature detection functionality if required by the design.