MCP73862-I/ML

Overview

The MCP73862-I/ML is a single-cell lithium-ion and lithium-polymer battery charge management controller manufactured by Microchip Technology. It integrates linear charging, system load balancing, and power-good monitoring within a compact MSOP-10 package. The device supports input voltages from 4.5 V to 12 V and delivers up to 1 A of programmable charge current. Key electrical parameters include a 4.2 V fixed output voltage for the battery terminal and an operating temperature range spanning -40 °C to +85 °C.

Feature Summary

• Integrates linear charge control with automatic system load balancing to prioritize power supply over battery when available.
• Includes dedicated power-good status indicator pin for system supervision.
• Features programmable charge termination via external resistor setting.
• Provides comprehensive safety protections including thermal regulation and reverse polarity blocking.

Applications

• Portable consumer electronics requiring space-constrained battery solutions
• Medical devices needing reliable single-cell power management
• Industrial handheld equipment with limited board area
• IoT sensors utilizing lithium-ion or lithium-polymer cells

Procurement Notes

Verify component authenticity through authorized distribution channels due to potential counterfeit risks. Confirm that the specific suffix matches the required package variant. Ensure compliance with RoHS directives if applicable to your manufacturing process. Cross-reference datasheet revisions to confirm compatibility with existing design specifications before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring integrated charge management and load switching in minimal footprint. Consider the MSOP-10 package constraints regarding thermal dissipation and PCB layout requirements. Evaluate the need for external programming resistors to set desired charge currents. Assess whether the fixed 4.2 V output aligns with the target battery chemistry specifications.

Part Context

This part belongs to the MCP7386x family of highly integrated battery charge management controllers designed for space-limited applications. The series offers various current ratings and package options to suit different design needs while maintaining consistent functional features such as load balancing and power-good signaling across the product line.

Replacement Considerations

The MCP73861T-I/ML serves as a direct substitute within the same family, offering similar functionality but potentially differing in current rating or package availability. Verify pin-to-pin compatibility and electrical parameter alignment before substitution.