MM3474G07VBE

Overview

The MM3474G07VBE is a power supply support circuit manufactured by Mitsumi Electric. It is designed for battery protection in systems utilizing 3 to 5 cells of lithium-ion or lithium-polymer rechargeable secondary batteries. The device integrates overcharge, overdischarge, and overcurrent protection functions to detect cell imbalances and short circuits. It is housed in a TSSOP-20 package with a shrink pitch of 0.635 mm. The component operates within an industrial temperature range from -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 for multi-cell lithium-based battery packs
• Detection capabilities for individual cell overvoltage, overall pack undervoltage, and discharge short circuits
• Designed for direct interface with 3 to 5 series-connected lithium-ion or lithium-polymer cells

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

Procurement Notes

Verify the specific suffix G07 against official Mitsumi documentation to confirm pinout and electrical characteristics, as suffixes often denote package variations or specific customer revisions. Ensure the source document explicitly lists MM3474G07VBE rather than generic family members. Confirm RoHS compliance status and lead-free material declarations directly from the manufacturer's datasheet for this exact part number before procurement.

Selection Notes

Select this component when designing protection for 3 to 5-series lithium battery configurations requiring integrated monitoring. The TSSOP-20 package suits applications needing multiple voltage sensing inputs. Verify that the required operating temperature range of -40 °C to 85 °C aligns with the target environment. Consider the low standby current of 0.02 mA for battery life optimization in portable applications.

Part Context

The MM3474 series comprises power supply support circuits specifically engineered for lithium-ion and lithium-polymer battery protection. These ICs monitor cell voltages to prevent damage from overcharging or deep discharging. The series includes variants for different cell counts, with the MM3474G07VBE targeting 3 to 5-cell architectures. This context places the component within the broader category of battery management system (BMS) protection ICs.

Replacement Considerations

Publicly confirmed substitute part numbers for MM3474G07VBE are not available in the provided reference data. Cross-referencing requires consulting official Mitsumi Electric replacement guides or distributor compatibility matrices.