MCP73864-I/SL

Overview

The MCP73864-I/SL is a fully integrated linear charge management controller designed for single or dual-cell lithium-ion and lithium-polymer battery packs. It supports input voltages up to 12 V and delivers a maximum charge current of 1.2 A. The device regulates charging voltage to 8.4 V for dual-cell configurations, with an alternative 8.2 V option available via external resistors. Operating within a temperature range of -40°C to +85°C, it utilizes a 16-pin SOIC package.

Feature Summary

• Fully integrated linear charge management controller supporting single or dual-cell Li-ion/Li-Polymer batteries
• Programmable charge current and termination threshold via external resistors
• Integrated thermal regulation to reduce charge current during high-temperature operation
• Status output pin indicating charge completion and fault conditions

Applications

• Portable electronic devices requiring dual-cell battery management
• Medical equipment utilizing lithium-ion power sources
• Industrial handheld instruments
• Consumer electronics with space-constrained designs

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm voltage settings and package variations. Ensure compatibility with your system's input voltage and thermal requirements. Cross-reference the datasheet for resistor values needed to set desired charge currents and termination thresholds. Confirm availability status as product lifecycles may change.

Selection Notes

Select this component for applications requiring a compact, fully integrated solution for dual-cell lithium batteries. It is suitable where thermal management is critical due to its internal regulation features. Compare against other MCP738xx series parts if single-cell support or different packaging options are required. Ensure the 16-pin SOIC footprint fits your PCB layout constraints.

Part Context

This part belongs to Microchip's MCP7386x family of advanced charge management controllers. These ICs are designed for high-performance, space-limited applications. The family offers various packages and cell configurations to accommodate diverse design needs in portable electronics and industrial systems.

Replacement Considerations

Check for direct pin-to-pin replacements within the MCP7386x series, such as variants with different suffixes for package or temperature range adjustments. Verify that any substitute maintains the 1.2 A current capability and 8.4 V output requirement. Consult Microchip's official substitution guide for validated alternatives.