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Product attributes Property Value
Manufacturer Mitsumi Electric Company Ltd
Product Series MM3474
Packaging Tape & Reel (TR) |
Function Battery Protection
Battery Chemistry Lithium Ion/Polymer
Number of Cells 3 ~ 5
Fault Protection Over Current, Over Voltage
Interface -
Operating Temperature -40°C ~ 85°C
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 20-TSSOP (0.173", 4.40mm Width)
Supplier Device Package TSOP-20D
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The MM3474C02VBE is a battery protection IC from Mitsumi Electric, tailored for lithium-ion/polymer battery packs with 3 to 5 cells. It delivers over-current and over-voltage protection, safeguarding cells from common electrical faults. With an operating range of -40°C to 85°C, it is built for industrial and outdoor use. The 20-TSSOP package enables compact, efficient PCB designs.

  • Extreme temperature tolerance: -40°C to 85°C supports harsh environments.
  • Multi-cell compatibility: Works with 3 to 5 cells for design flexibility.
  • Robust protection: Over-current and over-voltage features enhance battery safety.
  • Compact footprint: 20-TSSOP package saves valuable board space.

Automotive Auxiliary Batteries

For 3-5 cell auxiliary battery packs in vehicles, the wide temperature range supports under-hood and cabin environments.

Solar-Powered Systems

Off-grid solar storage with lithium polymer cells benefits from over-voltage protection during peak charging.

Portable Medical Monitors

Patient monitoring devices require reliable battery protection; this IC ensures safe operation in clinical settings.

Industrial Sensors

Wireless sensors in factories operating at extreme temperatures can rely on this IC for battery safety.

Emergency Lighting

Backup lighting systems with 3-5 cell packs need over-current protection during high-drain activation.

Data Loggers

Field data loggers in remote locations benefit from the -40°C to 85°C range for year-round operation.

Q: What is the function of the MM3474C02VBE?
A: It is a battery protection IC for lithium-ion/polymer batteries.
Q: How many cells does it support?
A: It supports 3 to 5 series cells.
Q: What protection features are included?
A: It provides over-current and over-voltage protection.
Q: What is the operating temperature range?
A: It operates from -40°C to 85°C.
Q: What package is available?
A: It comes in a 20-TSSOP (0.173", 4.40mm Width) package.
Base Product Number : MM3474C02VBE
-40°C to 85°C 20-TSSOP 3-5 Cells Battery Management Battery Protection BMS Lithium Ion/Polymer Mitsumi Over Current Over Voltage
Q: What is the function of the MM3474C02VBE?
A: It is a battery protection IC for lithium-ion/polymer batteries.
Q: How many cells does it support?
A: It supports 3 to 5 series cells.
Q: What protection features are included?
A: It provides over-current and over-voltage protection.
Q: What is the operating temperature range?
A: It operates from -40°C to 85°C.
Q: What package is available?
A: It comes in a 20-TSSOP (0.173", 4.40mm Width) package.