MCP73863-I/ML

Overview

The MCP73863-I/ML is a highly integrated charge management controller designed for single-cell lithium-ion and lithium-polymer batteries. It features an internal power path management system that prioritizes system load over battery charging, ensuring continuous operation during input power availability. The device supports programmable charge current and voltage termination thresholds. It includes comprehensive safety features such as thermal regulation, charge timeout protection, and reverse current blocking to prevent battery discharge when the input source is removed.

Feature Summary

• Integrates linear charger with power path manager for seamless system load distribution
• Supports full-featured lithium-ion and lithium-polymer battery charging profiles
• Includes thermal regulation and charge timeout protection mechanisms
• Prevents battery discharge through reverse current blocking functionality

Applications

• Portable consumer electronics requiring compact power solutions
• Battery-powered medical devices needing reliable charge management
• Industrial handheld instruments with limited space constraints
• IoT devices utilizing single-cell lithium battery configurations

Procurement Notes

Verify component authenticity through authorized Microchip Technology distributors or certified partners. Confirm package marking matches the specified QFN-20 configuration. Request official datasheets and test reports to validate performance parameters against design requirements. Ensure supply chain integrity by checking for counterfeit indicators on packaging and leads.

Selection Notes

Select this component for applications requiring integrated power path management alongside battery charging. Consider the QFN-20 package for space-constrained PCB layouts. Evaluate thermal performance requirements given the internal regulation capabilities. Compare against similar MCP738xx series variants to ensure compatibility with specific battery chemistry and system voltage levels.

Part Context

This part belongs to the MCP738xx family of charge management controllers from Microchip Technology. These devices are designed for high integration in portable applications. The -I/ML suffix indicates industrial temperature range operation and a specific QFN package variant. This family emphasizes simplicity and reliability for single-cell lithium battery systems.

Replacement Considerations

Public confirmed substitute part numbers include MCP73861T-I/ML and MCP73862T-I/ML within the same product family. Verify pinout compatibility and electrical parameter alignment before substitution. Consult Microchip documentation for detailed cross-reference information regarding functional equivalence.