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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 MM3474K02VBE from Mitsumi is a battery protection IC engineered for lithium-ion/polymer battery packs with 3 to 5 series cells. It delivers essential over-current and over-voltage safeguards to prevent cell damage and extend battery life. Housed in a compact 20-TSSOP package, it operates reliably across a wide -40°C to 85°C temperature range, making it suitable for industrial, medical, and portable applications where robust protection is required.

  • Wide temperature operation: -40°C to 85°C ensures reliable performance in harsh industrial settings.
  • Multi-cell support: Handles 3 to 5 cells, offering flexibility for various battery pack configurations.
  • Essential protection: Over-current and over-voltage safeguards prevent common battery failures.
  • Compact package: 20-TSSOP footprint saves PCB space in space-constrained designs.

Industrial Battery Packs

With a -40°C to 85°C operating range, this IC is ideal for industrial equipment battery packs that face extreme temperature variations.

Portable Power Tools

The 3-5 cell support and over-current protection make it suitable for high-drain power tool battery packs, preventing damage during heavy load.

E-Bike and E-Scooter Batteries

Lithium-ion/polymer chemistry compatibility and multi-cell monitoring ensure safe operation in light electric vehicle battery management systems.

Medical Devices

Reliable over-voltage protection is critical for medical monitoring equipment that requires stable, safe battery operation.

Backup Power Systems

For UPS or backup battery units, the wide temperature tolerance and protection features help maintain safety in uncontrolled environments.

Q: What is the function of the MM3474K02VBE?
A: It is a battery protection IC designed for lithium-ion/polymer battery packs.
Q: How many cells does this IC support?
A: It supports 3 to 5 series-connected cells.
Q: What fault protections 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, suitable for industrial environments.
Q: What package is available?
A: It comes in a 20-TSSOP (0.173", 4.40mm Width) package.
Base Product Number : MM3474K02VBE
-40°C ~ 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 MM3474K02VBE?
A: It is a battery protection IC designed for lithium-ion/polymer battery packs.
Q: How many cells does this IC support?
A: It supports 3 to 5 series-connected cells.
Q: What fault protections 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, suitable for industrial environments.
Q: What package is available?
A: It comes in a 20-TSSOP (0.173", 4.40mm Width) package.