MCP73844-840I/MS

Overview

The MCP73844-840I/MS is a charge management IC designed for lithium-ion and lithium polymer batteries. It provides an output voltage of 8.4 V with a maximum output current of 10 mA. The device operates on a supply voltage ranging from 8.7 V to 12 V. It is housed in an MSOP-8 package and supports surface mount installation.

Feature Summary

• Integrated charge safety timer functionality
• Supports single-cell lithium-ion and lithium polymer battery chemistries

Applications

• Portable electronic devices requiring dual-cell charging
• Battery management systems with safety timer requirements
• Consumer electronics utilizing lithium-polymer power sources

Procurement Notes

Verify component status as the manufacturer indicates end-of-life notification. Confirm availability through authorized distributors or surplus channels. Ensure compatibility with existing design specifications before procurement due to potential discontinuation risks.

Selection Notes

Select this component for applications requiring specific 8.4 V charging profiles for dual-cell configurations. Consider the MSOP-8 package constraints and operating voltage range when designing the power supply circuit. Evaluate alternative active components if long-term supply stability is critical.

Part Context

This part belongs to the MCP7384x series of battery chargers from Microchip Technology. The series includes variants for different cell counts and output voltages, such as single-cell options. The MCP73844 specifically targets dual-cell applications with integrated safety features.

Replacement Considerations

Direct substitutes include MCP73844T-840I/MS (tape and reel version) and MCP73844-840I/UN (different package). Verify pinout and electrical characteristics match before substitution.