MCP73837T-NVI/UN

Overview

The MCP73837T-NVI/UN is a linear Li-ion/Li-polymer charge management controller from Microchip Technology. It supports input voltages from 3.75 V to 6 V and delivers up to 1.2 A output current with a 4.2 V regulation voltage. The device operates within a temperature range of -40°C to +85°C and is housed in an MSOP-10 package.

Feature Summary

• Integrates USB and DC input auto-switching for seamless power source selection
• Provides complete thermal regulation to manage charging current under high temperature conditions
• Includes safety features such as charge termination timeout and temperature monitoring

Applications

• Portable electronic devices requiring single-cell lithium battery charging
• USB-powered consumer electronics
• Battery backup systems for embedded applications

Procurement Notes

Verify the suffix 'NVI' against official Microchip documentation to confirm specific tape-and-reel packaging and environmental compliance status. Ensure the ordering part number matches the required package variant and temperature grade before procurement.

Selection Notes

Select this component when designing circuits that require automatic switching between USB and external DC power sources. It is suitable for applications needing integrated thermal regulation and precise charge termination without external MOSFETs or diodes.

Part Context

This part belongs to the MCP7383x family of charge management controllers designed for single-cell lithium batteries. It offers a compact solution for portable devices, integrating all necessary control logic and protection features into a small surface-mount package.

Replacement Considerations

Check the MCP73838 series for similar functionality with potentially different package options. Verify pin compatibility and electrical specifications against the MCP73837 datasheet before substitution.