MM3474F02VBE

Overview

The MM3474F02VBE is a monolithic integrated circuit designed for battery protection, belonging to the MM3474 series. It functions as a power supply support circuit specifically engineered for 3 to 5-cell lithium-ion or lithium-polymer rechargeable secondary batteries. The device detects overcharge conditions for each individual cell, as well as overall overdischarge and discharge overcurrent states. It also provides detection capabilities for short circuits within the battery pack configuration.

Feature Summary

• Monolithic IC design for multi-cell lithium-ion and lithium-polymer battery packs
• Detects overcharge conditions for each individual cell in the series
• Provides protection against overall overdischarge and discharge overcurrent events
• Includes short circuit detection functionality for enhanced safety

Applications

• Protection circuits for 3 to 5-cell lithium-ion battery packs
• Protection circuits for 3 to 5-cell lithium-polymer battery packs
• Portable electronic devices requiring multi-cell battery management
• Power supply support systems for rechargeable secondary batteries

Procurement Notes

Verify the specific suffix F02 against official Mitsumi Electric documentation to confirm pinout and electrical characteristics, as variations exist within the MM3474 series. Ensure the component matches the required industrial temperature range of -40°C to 85°C. Confirm the TSSOP-20 package compatibility with your PCB layout. Cross-reference the datasheet revision date to ensure access to the most current technical specifications and handling guidelines.

Selection Notes

Select this component when designing protection for 3 to 5-series lithium-based battery cells. It integrates multiple protection functions into a single chip, reducing board space compared to discrete solutions. Consider the low supply current requirement of 0.02 mA for efficiency-sensitive applications. Verify that the TSSOP-20 thin profile shrink pitch package fits the mechanical constraints of the target enclosure.

Part Context

The MM3474F02VBE is part of the MM3474 series manufactured by Mitsumi Electric Co Ltd. This series is categorized under Power Supply Support Circuits and Battery Management. It complements other Mitsumi components like the MM3645 (1-cell) and MM3684 (3-5 cells) in the broader portfolio of lithium battery protection solutions.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult official Mitsumi Electric documentation for potential cross-references or updated series replacements.