MM3474G01VBE

Overview

The MM3474G01VBE is a power supply support circuit manufactured by Mitsumi Electric Co Ltd, designed for battery protection applications. It belongs to the MM3474 series and functions as an overcharge, overdischarge, and overcurrent protection IC for lithium-ion or lithium-polymer rechargeable secondary batteries. The device detects overcharge conditions in each cell, over-discharge events, discharge overcurrent, and short circuits. It operates within an industrial temperature range of -40 °C to +85 °C. The component features a TSSOP-20 package with a 0.635 mm pitch and has a maximum supply current of 0.02 mA.

Feature Summary

• Monolithic integrated circuit providing comprehensive protection against overcharge, overdischarge, overcurrent, and short circuits for lithium-based batteries.

Applications

• Protection circuits for 3 to 5 cells lithium-ion rechargeable secondary batteries
• Protection circuits for 3 to 5 cells lithium-polymer rechargeable secondary batteries

Procurement Notes

Verify the specific suffix (G01VBE) against official Mitsumi documentation to confirm pinout and functional variations within the MM3474 family. Ensure compatibility with the required operating temperature range of -40 °C to +85 °C for your application environment. Confirm that the TSSOP-20 package dimensions align with your PCB layout constraints.

Selection Notes

Select this component when designing protection systems for multi-cell lithium-ion or lithium-polymer battery packs requiring integrated detection of overcharge, overdischarge, and short circuit conditions. Consider the industrial temperature rating and low supply current requirements. Verify that the 20-pin TSSOP package fits the available board space and manufacturing capabilities.

Part Context

The MM3474G01VBE is part of the MM3474 series from Mitsumi Electric Co Ltd. This series consists of monolithic ICs specifically engineered for the safety management of lithium-ion and lithium-polymer rechargeable secondary batteries. The series provides essential protection functions to prevent hazardous conditions such as thermal runaway caused by electrical faults.

Replacement Considerations

Consult official Mitsumi datasheets for direct substitutes within the MM3474 series. Verify pin-to-pin compatibility and identical protection thresholds before considering alternative components.