MCP73871T-1CCI/ML

Overview

The MCP73871T-1CCI/ML is a highly integrated charge management controller designed for single-cell lithium-ion and lithium-polymer batteries. It features a fixed 4.1V output voltage and supports a maximum charging current of 1.1A. The device operates within a supply voltage range of 3.75V to 6V and functions across an industrial temperature range of -40°C to +85°C. Packaged in a 20-QFN (4x4 mm) surface-mount format, it includes thermal regulation and programmable termination features.

Feature Summary

• Fully integrated linear solution combining system load distribution with battery charging management
• Automatic power source selection between AC-DC wall adapters and USB ports
• Programmable charging termination via internal timer or voltage threshold
• Thermal regulation that limits charging current based on die temperature

Applications

• Portable devices requiring average 100 mA load current
• Systems consuming up to 500 mA peak current
• Applications utilizing 950 mAh lithium-ion batteries
• Space-limited consumer electronics designs

Procurement Notes

Verify component authenticity through authorized Microchip distributors. Confirm package integrity and moisture sensitivity level handling procedures prior to assembly. Review the End-of-Life notification documentation for lifecycle status updates. Ensure design compliance with RoHS3 specifications before integration into final products.

Selection Notes

Select this component for applications requiring automatic input source switching between USB and AC-DC adapters. Suitable for designs needing precise 4.1V regulation for specific lithium cell chemistries. Ideal for systems demanding integrated load switch functionality alongside charging control. Consider thermal management requirements due to active current limiting features.

Part Context

This part belongs to the MCP738xx series of charge management controllers from Microchip Technology. These devices are engineered for space-constrained applications requiring high integration. The series provides complete solutions for managing single-cell lithium-based battery systems with minimal external component count.

Replacement Considerations

MCP73871-1AAI/ML

FAQ

What is the fixed output voltage setting for this specific suffix?

The 1CCI suffix indicates a fixed 4.1V output voltage setting.

How does the device handle high temperatures during charging?

It monitors die temperature and automatically limits charging current if thresholds are exceeded.