MM3474E05VBE

Overview

The MM3474E05VBE is a monolithic integrated circuit designed for battery protection, belonging to the MM3474 series manufactured by Mitsumi Electric. It functions as a power supply support circuit specifically engineered for lithium-ion and lithium-polymer rechargeable secondary batteries with 3 to 5 cells. The device is housed in a TSSOP20 package with a 0.635 mm terminal pitch. It operates within an industrial temperature range of -40 °C to 85 °C and features a maximum supply current of 0.02 mA.

Feature Summary

• Monolithic integration of overcharge, overdischarge, and overcurrent protection capabilities
• Detection of short circuits across individual battery cells
• Compatibility with 3 to 5 cell lithium-ion and lithium-polymer battery configurations

Applications

• Protection circuits for multi-cell lithium-ion battery packs
• Safety management systems for lithium-polymer rechargeable batteries
• Power supply support units in portable electronic devices

Procurement Notes

Verify the specific suffix E05VBE against official Mitsumi documentation to confirm pinout and electrical characteristics. Ensure the component matches the TSSOP20 package specification and industrial temperature rating. Confirm that the ordering information aligns with the manufacturer's current datasheet for the MM3474 series to avoid compatibility issues.

Selection Notes

Select this component when designing protection logic for 3 to 5 cell lithium-based battery systems requiring integrated fault detection. Consider the TSSOP20 package dimensions and the low standby current consumption of 0.02 mA. Verify that the operating environment falls within the specified -40 °C to 85 °C range for reliable performance.

Part Context

The MM3474E05VBE is part of the MM3474 series from Mitsumi Electric, which focuses on battery protection solutions. This series includes variants like the MM3645 for single cells and the MM3684 for multi-cell applications. The MM3474 series provides comprehensive protection against common battery faults in a compact monolithic form factor.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.