MM3474F05VBE

Overview

The MM3474F05VBE is a power supply support circuit manufactured by Mitsumi Electric Co Ltd. It is housed in a PDSO20 package, specifically identified as TSSOP-20 with a shrink pitch of 0.635 mm and dual gull-wing terminals. The device operates within an industrial temperature range from -40 °C to +85 °C. It functions as a protection IC for 3 to 5 cell lithium-ion or lithium-polymer rechargeable secondary batteries. Key electrical characteristics include a maximum supply current of 0.02 mA. The component utilizes plastic/epoxy material for its body and is designed for surface mount applications.

Feature Summary

• Provides overcharge, overdischarge, and overcurrent protection for multi-cell lithium-based battery packs
• Detects short circuits within the protected battery system
• Monitors individual cell voltages for accurate protection triggering

Applications

• Protection circuits for 3 to 5 cell lithium-ion battery packs
• Protection circuits for 3 to 5 cell lithium-polymer battery packs
• Portable electronic devices requiring multi-cell battery management

Procurement Notes

Verify the exact suffix F05VBE against the manufacturer's official datasheet to confirm pinout and specific voltage thresholds. Ensure the TSSOP20 package dimensions match your PCB footprint design. Confirm that the industrial temperature rating meets your operational environment requirements. Check for RoHS compliance status if required by your assembly standards. Validate that the 0.02 mA supply current fits your system's power budget constraints.

Selection Notes

Select this component when designing protection for 3 to 5 series connected lithium cells. The low supply current makes it suitable for energy-efficient portable applications. The TSSOP20 package offers a compact solution for dense PCB layouts. Consider the industrial temperature range if the device will operate in varying environmental conditions. Ensure the input voltage capabilities align with the maximum pack voltage of your battery configuration.

Part Context

The MM3474 series is part of Mitsumi Electric's portfolio of battery protection integrated circuits. These monolithic ICs are specifically engineered for lithium-ion and lithium-polymer rechargeable secondary batteries. The series provides comprehensive safety features including detection of overcharge, overdischarge, and discharge overcurrent conditions. This family of components is widely used in consumer electronics and portable devices where battery safety is critical.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.