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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 MM3474C03VBE is a battery protection IC from Mitsumi designed for lithium-ion/polymer packs with 3 to 5 cells. It provides critical over-current and over-voltage protection to maintain battery health and safety. With a wide -40°C to 85°C operating range and a compact 20-TSSOP package, it is well-suited for automotive, industrial, and outdoor applications where temperature extremes are common.

  • Industrial temperature range: -40°C to 85°C enables use in demanding environments.
  • Flexible cell configuration: Supports 3 to 5 cells for diverse pack designs.
  • Core safety features: Over-current and over-voltage protection reduce risk of battery failure.
  • Space-efficient: 20-TSSOP package fits compact PCB layouts.

Automotive Auxiliary Batteries

The wide temperature range supports under-hood or cabin-mounted auxiliary battery protection in vehicles.

Solar Energy Storage

For off-grid solar storage systems, this IC provides reliable over-voltage protection to prevent cell degradation.

Robotics

Industrial robots operating in varied thermal environments benefit from the -40°C to 85°C capability.

Telecom Equipment

Outdoor telecom base stations require battery protection that can withstand extreme weather, which this IC provides.

Marine Electronics

Battery packs in marine applications face temperature swings; this IC's robust range ensures consistent protection.

Q: What is the function of the MM3474C03VBE?
A: It is a battery protection IC for lithium-ion/polymer batteries.
Q: How many cells can it monitor?
A: It supports 3 to 5 series cells.
Q: What protections does it offer?
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 : MM3474C03VBE
-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 MM3474C03VBE?
A: It is a battery protection IC for lithium-ion/polymer batteries.
Q: How many cells can it monitor?
A: It supports 3 to 5 series cells.
Q: What protections does it offer?
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.