MCP73834-GPI/MF

Overview

The MCP73834-GPI/MF is a standalone linear charge management controller designed for single-cell lithium-ion and lithium-polymer batteries. It supports a wide range of input supply voltages from 3.75 V to 6 V, enabling operation directly from USB or wall adapters. The device offers selectable charge termination voltages of 4.2 V, 4.35 V, 4.4 V, or 4.5 V via external resistors. It provides a programmable charge current up to 1.2 A and includes thermal regulation to limit die temperature during high-power charging.

Feature Summary

• Integrated thermal regulation that dynamically reduces charge current to prevent overheating
• Selectable charge termination voltage options for various battery chemistries
• Status indicator pin for monitoring charge state and fault conditions

Applications

• Portable electronic devices requiring safe lithium-ion battery charging
• USB-powered consumer electronics
• Medical equipment with battery backup systems

Procurement Notes

Verify the specific suffix code against the manufacturer's official datasheet to confirm the exact termination voltage setting and package variant. Ensure compatibility with your system's thermal design requirements given the linear topology. Confirm RoHS compliance status through the latest product release notes.

Selection Notes

Choose this component when a simple, low-component-count solution is needed for single-cell Li-Ion/Li-Po charging. It is suitable for applications where input voltage exceeds the battery voltage by at least 0.3 V. Consider thermal dissipation capabilities if operating near maximum current limits in enclosed spaces.

Part Context

This part belongs to Microchip's MCP7383x family of charge management controllers. It shares functional similarities with the MCP73833 but offers higher current capability and additional safety features. The GPI/MF designation indicates a 10-lead DFN package with an exposed pad for improved thermal performance.

Replacement Considerations

Direct substitutes include other parts within the MCP7383x series such as the MCP73833 or MCP73834 variants with different package codes. Verify pinout compatibility and electrical specifications before substitution.