MCP73861-I/SLG

Overview

The MCP73861-I/SLG is a single-cell lithium-ion or lithium-polymer battery charge management controller manufactured by Microchip Technology. It integrates linear charging, system load distribution, and battery status indication functions into a compact 16-lead SOIC package. The device supports input voltages up to 6V and provides programmable charge current regulation. It features thermal regulation to reduce charge current when die temperature exceeds safe limits, ensuring reliable operation in space-constrained portable applications.

Feature Summary

• Integrates linear charge management with system load path management for efficient power distribution
• Includes thermal regulation circuitry to automatically reduce charge current during high-temperature conditions
• Provides status indication outputs for charge completion and fault detection

Applications

• Portable consumer electronics requiring single-cell lithium battery charging
• Space-limited embedded systems needing integrated power management
• Battery-powered devices requiring thermal protection mechanisms

Procurement Notes

Verify the specific suffix (SLG) against the manufacturer's official datasheet to confirm pinout compatibility and package dimensions. Confirm RoHS compliance status as historical data may vary. Check for obsolescence notices from Microchip Technology before finalizing procurement plans.

Selection Notes

Select this component for applications requiring a highly integrated solution for single-cell Li-ion/Li-Po batteries. Ensure the input voltage range meets system requirements. Consider the 16-SOIC package constraints for PCB layout. Verify that the integrated thermal regulation aligns with the application's thermal design goals.

Part Context

This part belongs to the MCP73xx series of charge management controllers designed for space-limited applications. It is part of Microchip's portfolio of battery management solutions, offering integration of charging and load switch functions to reduce component count and board space compared to discrete solutions.

Replacement Considerations

Consult Microchip Technology's official documentation for verified replacement part numbers. Cross-reference pinouts and electrical specifications with potential substitutes to ensure functional compatibility without redesigning the host system.