MP2639CGR-Z

Overview

The MP2639CGR-Z is a Monolithic Power Systems Inc. integrated circuit designed for lithium-ion and lithium-polymer battery charging applications. It supports two-cell battery configurations with a maximum programmable charging current of 2.5A. The device operates within a supply voltage range of 4.5V to 5.5V and delivers an output voltage of 8.4V. It features a 26-PowerVFQFN package (26-QFN, 4x4mm) suitable for surface mount installation. The component functions across a junction temperature range of -40°C to 125°C.

Feature Summary

• Integrates boost charger functionality compatible with 5V input sources
• Supports bidirectional power flow for system discharge operations
• Includes comprehensive fault protection mechanisms such as over-temperature, over-voltage, and short-circuit safeguards

Applications

• Portable devices powered by dual-cell lithium-ion batteries
• Portable devices powered by dual-cell lithium-polymer batteries
• Systems requiring 5V adapter or USB input charging

Procurement Notes

Verify the specific suffix 'Z' against official manufacturer documentation to confirm compliance status and environmental declarations. Confirm that the 26-QFN(4x4) package dimensions match your PCB footprint requirements. Ensure the selected variant aligns with the required cell count and electrical specifications for your design.

Selection Notes

Select this component when designing for dual-cell Li-ion or Li-polymer battery systems requiring up to 2.5A charging current from a 5V source. Consider the 26-pin QFN package constraints and thermal management needs for high-current operation. Verify compatibility with system discharge requirements if bidirectional power flow is necessary.

Part Context

This part belongs to the MP2639 series of battery chargers from Monolithic Power Systems. It is specifically engineered for portable electronics utilizing two-cell battery packs. The series offers integrated power path management and safety features tailored for compact mobile applications.

Replacement Considerations

MP2639CGR-P is listed as a direct substitute by the manufacturer.