MCP73834-GPI/UN

Overview

The MCP73834-GPI/UN is a standalone linear charge management controller designed for single-cell lithium-ion and lithium-polymer batteries. It operates within an input voltage range of 3.75 V to 6 V, supporting a maximum output charging current of 1.2 A. The device regulates the battery voltage to a precise 4.2 V termination level. Packaged in a compact 10-MSOP (Micro-Small Outline Package) with a width of 3.00 mm, it is suitable for space-constrained applications. The component functions reliably across an operating temperature range from -40°C to +85°C.

Feature Summary

• Integrated linear charge management controller optimized for single-cell Li-ion and Li-Polymer battery chemistries
• Compact 10-pin MSOP package design intended for space-limited portable electronic applications
• Supports standard constant-current/constant-voltage charging profiles with thermal regulation capabilities

Applications

• Portable consumer electronics requiring single-cell lithium battery charging
• Mobile communication devices utilizing Li-ion or Li-Polymer power sources
• Medical instrumentation with strict size constraints for battery management

Procurement Notes

Verify the specific suffix 'GPI' against the manufacturer's official datasheet to confirm pinout compatibility and package dimensions. Ensure the source provides valid RoHS compliance documentation. Cross-reference the part number with Microchip Technology's current product status to avoid obsolete components. Confirm that the supplier offers genuine original equipment manufacturer parts to prevent counterfeit risks.

Selection Notes

Select this component when a dedicated linear charger IC is required for single-cell lithium batteries in compact designs. It is appropriate for systems where input voltage remains above 3.75 V and efficiency losses are acceptable compared to switching regulators. Consider alternative packages if larger thermal dissipation is needed or if different pin configurations are preferred for PCB layout optimization.

Part Context

This model belongs to the MCP7383x family of charge management controllers from Microchip Technology. The series includes variants such as the MCP73833 and MCP73834, which share similar functional architectures but may differ in specific features like charge termination methods or indicator outputs. The GPI/UN designation specifies the particular package type and material composition within this product line.

Replacement Considerations

Direct substitutes include other MCP73834 variants with compatible pinouts, such as MCP73834T-2ACI/UN or MCP73834T-2ACI/MF, provided the package matches. Verify electrical specifications and thermal performance before swapping. Generic replacements require careful validation of charging algorithms and safety features.