MCP73834-NVI/MF

Overview

The MCP73834-NVI/MF is a standalone Li-Ion/Li-Polymer battery charge management controller from Microchip Technology. It supports autonomous AC-adapter or USB-port source selection and provides programmable charge current up to 1A. The device features thermal regulation, charge termination, and safety timers. It operates within a supply voltage range of 3.75V to 6V and includes a power-good status output. The component is housed in a DFN-10 package suitable for surface-mount applications.

Feature Summary

• Autonomous input source selection between AC adapter and USB port
• Integrated thermal regulation to manage heat during charging
• Programmable charge current control for flexible design
• Comprehensive safety features including charge termination and timers

Applications

• Portable electronic devices requiring single-cell lithium-ion or polymer battery charging
• USB-powered consumer electronics with integrated battery management
• AC adapter powered portable equipment needing automatic source switching
• Compact handheld devices utilizing small footprint DFN packaging

Procurement Notes

Verify the specific suffix 'NVI/MF' against the official Microchip datasheet to confirm pinout and package configuration. Ensure compatibility with your system's input voltage range and thermal requirements. Cross-reference ordering information directly with authorized distributors to avoid counterfeit components. Confirm RoHS compliance status if required by your manufacturing standards.

Selection Notes

Select this controller when designing systems that require automatic switching between USB and AC power sources without external logic. It is suitable for applications needing precise thermal management and programmable charge currents. Consider the DFN-10 package size constraints and ensure adequate PCB thermal relief for optimal performance under high-current conditions.

Part Context

This component belongs to the MCP7383x series of battery charge management controllers. It shares functional similarities with other models in the family but offers specific package and feature configurations tailored for compact designs. The series is designed for single-cell lithium-based batteries, providing a complete solution for safe and efficient charging in portable applications.

Replacement Considerations

Check for direct substitutes like MCP73838-NVI/MF which may offer similar functionality with different current ratings. Verify pin-to-pin compatibility before substitution. Review updated datasheets for any changes in electrical characteristics or package dimensions that might affect board layout.