MM3474E03VBE

Overview

The MM3474E03VBE 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 0.635 mm pitch. The device operates within an industrial temperature range of -40 °C to +85 °C and has a maximum supply current of 0.02 mA.

Feature Summary

• Provides overcharge protection for individual cells in lithium-ion or lithium-polymer battery packs
• Detects and prevents overdischarge conditions across the battery series
• Monitors and interrupts discharge overcurrent and short circuit events

Applications

• Protection circuits for 3-cell lithium-ion battery packs
• Protection circuits for 4-cell lithium-ion battery packs
• Protection circuits for 5-cell lithium-ion battery packs
• Safety management for 3 to 5-cell lithium-polymer rechargeable secondary batteries

Procurement Notes

Verify the specific suffix 'E03VBE' against the official Mitsumi datasheet to confirm pinout compatibility and tape-and-reel specifications. Ensure the application voltage levels align with the monolithic IC's detection thresholds for 3 to 5 cell configurations. Confirm RoHS compliance status if required by your manufacturing standards.

Selection Notes

Select this component when designing protection logic for multi-cell lithium-based battery systems requiring integrated overcharge, overdischarge, and overcurrent monitoring. The TSSOP20 package suits surface-mount assembly processes. Consider the low standby current for energy-efficient portable applications.

Part Context

This part belongs to the MM3474 series of monolithic ICs designed for battery protection. It complements other Mitsumi power management solutions like the MM3411A49 LDO and MM3478 LDO regulators, forming a complete power subsystem for portable electronics utilizing lithium-ion or lithium-polymer energy storage.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify cross-reference availability through official distributor channels before design finalization.