MCP73863-I/SL

Overview

The MCP73863-I/SL is a fully integrated linear charge management controller designed for single or dual cell lithium-ion and lithium-polymer batteries. It operates from an input voltage range of 4.5V to 12V and provides a regulated output voltage of 4.2V with a tolerance of ±0.5%. The device supports a maximum charging current of 1.2A and includes thermal regulation and timer-based termination features. It is housed in a 16-SOIC package and functions within an ambient temperature range of -40°C to 85°C.

Feature Summary

• Fully integrated linear charge management controller for Li-Ion and Li-Polymer batteries
• Supports single or dual cell configurations with programmable charge termination
• Includes thermal regulation to reduce charging rate during high temperatures
• Operates from standard 5V, 9V, or 12V power sources

Applications

• Portable electronic devices requiring compact battery charging solutions
• Single or dual cell lithium-ion/polymer battery packs
• Space-constrained high-performance applications
• Consumer electronics powered by regulated DC inputs

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm package type and temperature grade. Ensure the ordering part number matches the required SOIC-16 configuration. Cross-reference absolute maximum ratings with system design limits to prevent damage. Confirm availability status as some variants may be obsolete.

Selection Notes

Select this component for applications requiring a fully integrated solution without external MOSFETs. It is suitable for designs needing precise voltage regulation and thermal protection. Consider the 1.2A current limit when sizing heat dissipation. Verify compatibility with the target battery chemistry and cell count before implementation.

Part Context

This part belongs to the MCP7386x family of advanced charge management controllers. It shares functional similarities with other models in the series but differs in package and specific electrical characteristics. The I/SL suffix indicates industrial temperature range and SOIC packaging. It serves as a complete charging solution for portable devices.

Replacement Considerations

Check for direct substitutes within the MCP7386x family. Verify pinout compatibility if replacing with similar ICs. Ensure input voltage and current specifications meet or exceed original requirements. Confirm package dimensions match the existing PCB footprint.