MM3474L02VBE

Overview

The MM3474L02VBE is a power supply support circuit manufactured by Mitsumi Electric Co Ltd. It is housed in a PDSO20 package, specifically identified as TSSOP with 20 terminals and a dual gull-wing configuration. The device operates within an industrial temperature range of -40 °C to 85 °C. It features a maximum supply current of 0.02 mA and utilizes a plastic/epoxy body material.

Feature Summary

• Monolithic integrated circuit designed for battery protection applications
• Provides overcharge, overdischarge, and overcurrent protection functions
• Capable of detecting short circuits in lithium-ion or lithium-polymer batteries

Applications

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

Procurement Notes

Verify the exact part number against official Mitsumi Electric documentation, as the provided knowledge base lists MM3474E02VBE rather than MM3474L02VBE. Confirm that the suffix 'L' does not indicate a variant with different electrical characteristics or packaging specifications compared to the standard series. Ensure compatibility with the specified TSSOP20 footprint and industrial temperature requirements before procurement.

Selection Notes

Select this component when designing protection circuits for multi-cell lithium-based battery packs requiring integrated monitoring. The low supply current makes it suitable for energy-efficient portable electronics. Verify that the 20-pin TSSOP package fits the available PCB space and that the operating temperature range meets the environmental conditions of the target application.

Part Context

This component belongs to the MM3474 series of monolithic ICs developed by Mitsumi Electric Co Ltd. The series is engineered specifically for managing safety parameters in lithium-ion and lithium-polymer battery systems. It integrates detection logic for critical fault conditions directly into a compact surface-mount package.

Replacement Considerations

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