MM3474F11VBE

Overview

The MM3474F11VBE is a monolithic integrated circuit designed for battery protection, specifically supporting 3 to 5 cells of lithium-ion or lithium-polymer rechargeable secondary batteries. Manufactured by Mitsumi Electric Company Ltd, this component functions as a comprehensive power supply support circuit. It integrates detection capabilities for overcharge conditions on individual cells, overdischarge states, and discharge overcurrent events, including short-circuit protection. The device is housed in a TSSOP20 package with a 0.635 mm pitch, suitable for surface mount applications within an industrial temperature range of -40 °C to 85 °C.

Feature Summary

• Monolithic integration of overcharge, overdischarge, and overcurrent protection mechanisms for multi-cell lithium-based battery packs.

Applications

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

Procurement Notes

Verify the specific suffix 'F11' against official Mitsumi documentation to confirm pinout compatibility and electrical characteristics, as variations may exist within the MM3474 series. Ensure the procurement source provides valid datasheets confirming the TSSOP20 package and industrial temperature rating. Cross-reference the manufacturer part number to avoid confusion with similar models like MM3474G01VBE which share functional descriptions but may differ in specifications.

Selection Notes

Select this component when designing protection systems for 3 to 5 series-connected lithium-ion or lithium-polymer cells requiring integrated fault detection. Consider the TSSOP20 package constraints and the -40 °C to 85 °C operating temperature range for environmental suitability. Evaluate the need for simultaneous overcharge, overdischarge, and overcurrent protection features inherent to this monolithic IC design.

Part Context

The MM3474F11VBE belongs to the MM3474 series of battery protection ICs from Mitsumi Electric Company Ltd. This series targets portable electronics and battery-powered devices utilizing multi-cell lithium chemistry. The family includes variants such as MM3474G01VBE, indicating a structured product line focused on safety management for rechargeable battery systems.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative battery protection ICs based on specific voltage thresholds and package dimensions.