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Product Detailed Parameters
- Description：IC, MULTI CELL, BATTERY PROTECTI
- Series：MM3474
- Mfr：Mitsumi Electric Company Ltd
- Package：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
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Overview
The MM3474K03VBE is a monolithic integrated circuit designed for battery protection, belonging to the MM3474 series by Mitsumi Electric. It functions as a power supply support circuit specifically engineered for lithium-ion and lithium-polymer rechargeable secondary batteries with 3 to 5 cells. The device provides comprehensive protection against overcharge, overdischarge, and discharge overcurrent conditions. It detects short circuits within the battery pack configuration. The component is housed in a TSSOP20 package with a 0.635 mm pitch and operates within an industrial temperature range of -40 °C to 85 °C.
Feature Summary
- Monolithic integration of overcharge, overdischarge, and overcurrent protection logic for multi-cell lithium-based battery packs.
Applications
- Protection circuits for 3 to 5 cell lithium-ion battery packs
- Protection circuits for 3 to 5 cell lithium-polymer battery packs
Procurement Notes
Verify the specific suffix K03 against official Mitsumi documentation to confirm pinout compatibility and electrical characteristics. Ensure the procurement source provides the original datasheet from Mitsumi Electronics Corp. to validate the industrial temperature rating and package details. Cross-reference the part number with authorized distributors to avoid counterfeit components.
Selection Notes
Select this component when designing protection systems for 3 to 5 series connected lithium-ion or lithium-polymer cells. The IC is suitable for applications requiring detection of overcharge, overdischarge, and discharge overcurrent events. Consider the TSSOP20 package constraints and the specified operating temperature range during board layout and thermal management planning.
Part Context
The MM3474K03VBE is part of the MM3474 series, which includes other variants such as the MM3474G01VBE. These devices are classified as power supply support circuits intended for battery management. The series focuses on providing safety mechanisms for portable electronics and industrial equipment utilizing multi-cell lithium battery architectures.
FAQ
What types of batteries does the MM3474K03VBE protect?
It is designed for lithium-ion and lithium-polymer rechargeable secondary batteries.
How many cells can this IC protect?
The IC supports protection for 3 to 5 cells.
