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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 MM3474L03VBE from Mitsumi is a battery protection IC tailored for lithium-ion/polymer packs. It manages 3 to 5 cells, offering over-current and over-voltage protection. Its wide -40°C to 85°C operating range makes it suitable for industrial and outdoor applications. The 20-TSSOP package provides a compact solution for multi-cell battery management.

  • Industrial Temperature Range: -40°C to 85°C operation for harsh environments.
  • Multi-Cell Flexibility: Supports 3 to 5 cells for diverse battery pack designs.
  • Essential Safety Features: Over-current and over-voltage protection enhance pack safety.
  • Compact Footprint: 20-TSSOP package saves PCB space.

Electric Vehicle (EV) Auxiliary Batteries

For 12V auxiliary lithium batteries in EVs, this IC provides essential over-voltage and over-current protection in a wide temperature range.

Marine and RV Power Systems

Battery packs in boats and RVs face temperature swings; this IC's -40°C to 85°C rating ensures reliable protection.

Uninterruptible Power Supplies (UPS)

In small UPS units, the IC protects lithium-ion packs from over-charge and over-current events, enhancing system safety.

Portable Test Equipment

Field-deployed test instruments benefit from the wide temperature range and robust protection for their multi-cell batteries.

Drone Battery Packs

High-drain drone batteries require over-current protection; this IC supports 3-5 cell packs used in professional drones.

Smart Grid Meters

For smart meters with backup batteries, this IC ensures safe operation across outdoor temperature extremes.

Q: What is the function of the MM3474L03VBE?
A: It is a battery protection IC for lithium-ion/polymer batteries.
Q: How many cells can it protect?
A: It supports 3 to 5 series 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.
Q: What package is it available in?
A: It comes in a 20-TSSOP (0.173", 4.40mm Width) package.
Base Product Number : MM3474L03VBE
-40°C ~ 85°C 20-TSSOP 3 ~ 5 Cells Battery Management Battery Protection BMS Lithium Ion/Polymer Over Current Over Voltage
Q: What is the function of the MM3474L03VBE?
A: It is a battery protection IC for lithium-ion/polymer batteries.
Q: How many cells can it protect?
A: It supports 3 to 5 series 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.
Q: What package is it available in?
A: It comes in a 20-TSSOP (0.173", 4.40mm Width) package.