MCP73834T-NVI/UN

Overview

The MCP73834T-NVI/UN is a single-cell lithium-ion or lithium-polymer battery charge management controller manufactured by Microchip Technology. It integrates a linear regulator and power MOSFET to manage the charging process, supporting both constant current and constant voltage charging profiles. The device includes an internal temperature monitoring function that adjusts the charge current based on battery temperature to ensure safety. It operates from a supply voltage range of 4.5V to 6.0V and supports charge currents up to 1A. The component features a low dropout voltage capability, allowing efficient charging even when the input voltage is close to the battery voltage.

Feature Summary

• Integrates linear charge regulation with built-in power MOSFET for compact design
• Supports standard CC/CV charging algorithms for Li-ion and Li-Po batteries
• Includes thermal regulation to reduce charge current during high temperature conditions
• Provides status output indicating charge completion and fault conditions

Applications

• Portable electronic devices requiring single-cell battery charging
• Consumer electronics such as smartphones and tablets
• Medical devices with lithium-based power sources
• Industrial handheld equipment

Procurement Notes

Verify the exact suffix 'NVI/UN' against official Microchip documentation to confirm package type and tape/reel specifications. Ensure compatibility with your system's input voltage and thermal requirements before procurement. Cross-reference the date code and lot number if traceability is required for your application.

Selection Notes

Select this component when a compact, integrated solution for single-cell lithium battery charging is needed. Consider the operating temperature range and the specific charge current requirements of your battery. Verify that the input voltage source falls within the specified 4.5V to 6.0V range for optimal performance.

Part Context

This part belongs to Microchip's MCP7383x series of battery charge controllers. The series offers various options for different charge currents and package types. The 'T' in the model name typically indicates tape and reel packaging, while 'NVI/UN' specifies the particular package variant and environmental compliance status.

Replacement Considerations

Check Microchip's official replacement guide for direct pin-to-pin compatible alternatives. Ensure any substitute maintains the same charge profile support and thermal regulation features. Verify package dimensions and electrical characteristics match the original design requirements.