XC6808B4D28R-G

Overview

The XC6808B4D28R-G is a single-cell lithium-ion/polymer linear charger IC from Torex Semiconductor. It features a fixed 4.35V output voltage and supports a maximum charge current of 40mA. The device operates within a supply voltage range of 4.5V to 6V, with a typical operating supply current of 100uA. It includes battery temperature detection for safety monitoring. The component is housed in a 6-USP-B07 (1.8x2) surface-mount package and functions across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrated battery temperature detection circuit for enhanced charging safety
• Linear charging architecture optimized for single-cell lithium batteries
• Built-in fault protection mechanisms including overcurrent and thermal shutdown

Applications

• Single-cell lithium-ion battery charging in portable electronics
• Lithium-polymer battery management in compact mobile devices
• Low-power consumer gadget power supply systems

Procurement Notes

Verify the specific suffix codes against official datasheets to confirm voltage and current parameters. Ensure the 6-USP-B07 package dimensions match PCB layout requirements. Confirm RoHS compliance status through manufacturer documentation prior to integration into final products.

Selection Notes

Select this component when a fixed 4.35V termination voltage is required for single-cell applications. The 40mA current limit suits low-capacity or trickle-charge scenarios. Consider the USP-6B07 footprint for space-constrained designs requiring integrated thermal monitoring capabilities.

Part Context

This part belongs to the XC6808 series of linear chargers designed for small form-factor applications. The series provides reliable charging profiles for lithium-based chemistries with minimal external component requirements. The B4D28R-G designation specifies the particular voltage and current configuration within the product family.

Replacement Considerations

XC6808A4D28R-G

FAQ

What is the purpose of the battery temperature detection feature?

It monitors the battery temperature during charging to prevent overheating and ensure safe operation.

Does this IC support programmable charge current?

No, the XC6808B4D28R-G has a fixed maximum charge current of 40mA.