MM3474G03VBE

Overview

The MM3474G03VBE is a power supply support circuit manufactured by Mitsumi Electric Co Ltd. It is housed in a PDSO20 package, specifically identified as TSSOP-20 with a shrink pitch of 0.635 mm and dual gull-wing terminals. The device operates within an industrial temperature range from -40 °C to 85 °C. It features a maximum supply current of 0.02 mA and utilizes plastic/epoxy encapsulation.

Feature Summary

• Designed for battery protection applications involving 3 to 5 cells of lithium-ion or lithium-polymer rechargeable secondary batteries
• Provides integrated detection capabilities for overcharge, overdischarge, discharge overcurrent, and short circuits

Applications

• Protection circuits for 3-cell lithium-ion battery packs
• Protection circuits for 4-cell lithium-ion battery packs
• Protection circuits for 5-cell lithium-polymer battery arrays

Procurement Notes

Verify the specific suffix G03VBE against official Mitsumi documentation to confirm pinout compatibility and electrical characteristics. Ensure the component meets the required industrial temperature specifications (-40 °C to 85 °C) for your application environment. Confirm that the TSSOP20 package dimensions align with your PCB footprint requirements before finalizing procurement.

Selection Notes

Select this component when designing protection systems for multi-cell lithium-based battery configurations requiring integrated fault detection. Consider the low supply current consumption and compact TSSOP20 packaging for space-constrained portable electronics. Evaluate the monolithic integration of overcharge, overdischarge, and overcurrent protection functions to simplify the bill of materials compared to discrete solutions.

Part Context

The MM3474 series consists of monolithic ICs designed for protecting lithium-ion and lithium-polymer rechargeable secondary batteries. This family includes variants supporting different cell counts, such as 3 to 5 cells. The MM3474G03VBE belongs to this series, offering comprehensive protection against common battery failure modes including overvoltage, undervoltage, and excessive current conditions.

Replacement Considerations

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