MCP73833-CNI/MF

Overview

The MCP73833-CNI/MF is a charge management controller designed for single-cell lithium-ion and lithium-polymer batteries. It provides a regulated 4.2 V output with a maximum output current of 1.2 A. The device operates on a supply voltage ranging from 3.75 V to 6 V. It is housed in a DFN package suitable for surface mount installation. The component supports an operating temperature range from -40 °C to +85 °C.

Feature Summary

• Supports charging for single-cell lithium-ion and lithium-polymer battery chemistries
• Integrates thermal regulation to manage heat dissipation during high-current charging cycles
• Includes status indicator pin functionality for monitoring charge state

Applications

• Portable electronic devices requiring single-cell battery charging
• USB-powered consumer electronics
• Battery management systems in compact hardware enclosures

Procurement Notes

Verify the specific suffix CNI/MF against official Microchip documentation to confirm the exact package type and marking configuration. Ensure compatibility with the target PCB footprint, as package variations exist within the MCP73833 family. Confirm RoHS compliance status through the manufacturer's latest datasheet or certification documents before finalizing procurement specifications.

Selection Notes

Select this component when a compact DFN package is required for space-constrained designs. It is appropriate for applications needing up to 1.2 A charging current from a 3.75 V to 6 V input source. Consider alternative packages like MSOP or TSSOP if different thermal or mechanical constraints apply to the system architecture.

Part Context

This part belongs to the MCP7383x series of charge management controllers from Microchip Technology. The series includes variants such as MCP73833-AMI/UN and MCP73833-CNI/UN, which share similar electrical characteristics but differ in packaging. The MCP73833-CNI/MF specifically utilizes a DFN form factor distinct from the MSOP or TSSOP options available in the same product line.

Replacement Considerations

MCP73833-CNI/UN shares the same core functionality but uses a TSSOP package instead of DFN. MCP73833-AMI/MF offers identical electrical performance in a DFN package but may have different marking codes. Verify pinout and thermal pad requirements when substituting.