MCP73834-CNI/MF

Overview

The MCP73834-CNI/MF is a 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 and supports a maximum output current of 1.2 A. The device provides precise charge termination at 4.2 V, with optional accuracy variants available. It features a 10-pin VFDFN package with an exposed pad, measuring 3 mm by 3 mm. The component functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Integrated linear charge management controller for single-cell Li-Ion and Li-Polymer batteries
• Supports programmable charge current up to 1.2 A with standard 4.2 V termination
• Includes thermal regulation and charge status indication via dedicated pins

Applications

• Portable electronic devices requiring single-cell battery charging
• Consumer electronics utilizing lithium-ion or lithium-polymer power sources
• Industrial control systems with compact power management needs

Procurement Notes

Verify the specific suffix against the official Microchip datasheet to confirm pinout compatibility and electrical tolerances. Ensure the ordering part number matches the required package style and temperature rating. Cross-reference the manufacturer's latest documentation to validate RoHS compliance and environmental specifications before finalizing procurement decisions.

Selection Notes

Select this component when a compact solution for single-cell lithium battery charging is required. The 10-DFN package suits space-constrained designs. Verify that the system input voltage remains within the 3.75 V to 6 V operating range. Confirm that the 1.2 A current capability meets the target battery's charging requirements without exceeding thermal limits in the intended enclosure.

Part Context

This part belongs to the MCP7383x family of charge management controllers from Microchip Technology. The series offers various package options and termination voltages to accommodate different design constraints. The CNI/MF designation specifies the 10-pin DFN package and standard performance characteristics within this product line.

Replacement Considerations

Compatible substitutes include MCP73833T-CNI/MF and MCP73834T-CNI/MF. These alternatives share similar electrical characteristics but differ in packaging media, such as tape and reel versus tube. Verify pin compatibility and thermal performance before substitution.