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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 MM3474K04VBE is a battery protection IC from Mitsumi Electric, designed for lithium-ion/polymer battery packs with 3 to 5 cells. It offers over-current and over-voltage protection to maintain battery health and safety. The device operates from -40°C to 85°C, making it ideal for industrial and outdoor applications. Its 20-TSSOP package supports compact system designs.

  • Wide operating range: -40°C to 85°C enables use in demanding environments.
  • Flexible cell configuration: Supports 3 to 5 cells for various pack sizes.
  • Essential safety features: Over-current and over-voltage protection prevent failures.
  • Efficient packaging: 20-TSSOP minimizes PCB area requirements.

Heavy-Duty Power Tools

High-drain tools with 3-5 cell packs benefit from over-current protection during sudden load spikes.

Outdoor Security Cameras

Battery-powered cameras in extreme climates require the -40°C to 85°C operating range for reliable year-round performance.

Portable Welding Equipment

Battery packs for portable welders need robust over-current protection to handle high discharge rates.

Agricultural Sensors

Field sensors monitoring crops operate in harsh temperatures; this IC ensures battery safety.

Marine Electronics

Boat electronics with lithium polymer packs benefit from protection against voltage spikes during charging.

Uninterruptible Power Supplies

Small UPS units with 3-5 cells use this IC to prevent over-voltage during grid fluctuations.

Q: What is the function of the MM3474K04VBE?
A: It is a battery protection IC for lithium-ion/polymer batteries.
Q: How many cells can it handle?
A: It supports 3 to 5 series-connected cells.
Q: What protections are provided?
A: It includes over-current and over-voltage protection.
Q: What is the temperature range?
A: It operates from -40°C to 85°C.
Q: What package is used?
A: It is available in a 20-TSSOP (0.173", 4.40mm Width) package.
Base Product Number : MM3474K04VBE
-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 MM3474K04VBE?
A: It is a battery protection IC for lithium-ion/polymer batteries.
Q: How many cells can it handle?
A: It supports 3 to 5 series-connected cells.
Q: What protections are provided?
A: It includes over-current and over-voltage protection.
Q: What is the temperature range?
A: It operates from -40°C to 85°C.
Q: What package is used?
A: It is available in a 20-TSSOP (0.173", 4.40mm Width) package.