MCP73838-NVI/UN

Overview

The MCP73838-NVI/UN is a standalone Li-Ion/Li-Polymer battery charge management controller featuring autonomous AC-adapter or USB-port source selection. It supports charge currents up to 1A from an AC power source and up to 500 mA from a USB port. The device operates with a supply voltage range of 3.75 V to 6 V and provides a regulated output voltage of 4.2 V. It utilizes a 10-pin MSOP package.

Feature Summary

• Autonomous power source selection between AC adapter and USB port
• Integrated linear charge management for single-cell lithium batteries
• Supports standard CC/CV charging profiles

Applications

• Portable electronic devices requiring USB charging
• Battery-powered equipment using AC adapters
• Li-Ion and Li-Polymer battery protection circuits

Procurement Notes

Verify the suffix 'NVI' against official Microchip documentation to confirm specific tape-and-reel or tube packaging configurations. Ensure the part number matches the exact pinout and thermal characteristics required for your PCB layout. Cross-reference with the latest datasheet revision to confirm compliance with current RoHS standards and material declarations before finalizing procurement orders.

Selection Notes

Select this component when automatic switching between USB and AC power sources is required without external logic. It is suitable for applications needing up to 1A charging current from AC inputs. Compare with the MCP73837 if lower USB current limits are acceptable, or consider the MCP73838-FCI/UN for different package options. Ensure input voltage ranges align with the 3.75 V to 6 V specification.

Part Context

This model belongs to the MCP7383x family of charge management controllers designed for portable applications. It complements other variants like the MCP73838-NVI/MF, differing primarily in packaging type (MSOP vs. DFN). The series emphasizes minimal external component count while providing robust battery charging management features.

Replacement Considerations

The MCP73838-NVI/MF serves as a direct functional alternative with identical electrical specifications but utilizes a DFN package instead of MSOP. Verify footprint compatibility before substitution.