MM3474L04VBE

Overview

The MM3474L04VBE is a power supply support circuit manufactured by Mitsumi Electric. 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. Its maximum supply current is specified at 0.02 mA. The component utilizes plastic/epoxy encapsulation and is designed for surface mount installation.

Feature Summary

• Provides comprehensive protection functions for lithium-ion and lithium-polymer battery systems
• Monitors individual cells for overcharge, overdischarge, and discharge overcurrent conditions
• Detects short circuit events within the protected battery pack

Applications

• Protection circuits for 3 to 5 cell lithium-ion rechargeable secondary batteries
• Protection circuits for 3 to 5 cell lithium-polymer rechargeable secondary batteries
• Battery management systems requiring integrated overcharge and overdischarge detection

Procurement Notes

Verify the exact suffix against official Mitsumi documentation to confirm pinout compatibility and specific electrical tolerances. Ensure the procurement source provides valid datasheets matching the MM3474 series specifications. Confirm that the received components match the TSSOP20 package dimensions and terminal pitch requirements for your PCB layout.

Selection Notes

Select this component when designing protection circuits for multi-cell lithium-based battery packs requiring integrated monitoring. It is suitable for applications needing simultaneous detection of overcharge, overdischarge, and overcurrent states. Consider the industrial temperature rating and low supply current when evaluating power constraints in portable or embedded battery systems.

Part Context

The MM3474L04VBE belongs to the MM3474 series of monolithic ICs produced by Mitsumi Electric. This series is dedicated to protecting lithium-ion and lithium-polymer batteries. The family includes variants designed for different cell counts and packaging options, all sharing core protection functionalities for safe battery operation.

Replacement Considerations

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