MM3474P05VBE

Overview

The MM3474P05VBE is a monolithic integrated circuit belonging to the MM3474 series, manufactured by Mitsumi Electric Co Ltd. It functions as a power supply support circuit designed for battery protection applications. The device is housed in a TSSOP20 package with a shrink pitch of 0.635 mm and dual gull-wing terminals. It operates within an industrial temperature range from -40 °C to 85 °C. The maximum supply current (Isup) is specified at 0.02 mA. The component utilizes plastic/epoxy material and is rated for surface mount installation.

Feature Summary

• Provides overcharge, overdischarge, and overcurrent protection for lithium-ion and lithium-polymer rechargeable secondary batteries.
• Capable of detecting short circuits across individual cells within a multi-cell battery pack.
• Monolithic IC design ensures compact integration for portable electronic devices.

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 equipment requiring multi-cell battery management

Procurement Notes

Verify the specific suffix 'P05' against official Mitsumi documentation to confirm voltage thresholds or pinout variations, as datasheets often list the base series MM3474 without detailed suffix differentiation. Ensure the TSSOP20 package dimensions match the target PCB footprint. Confirm that the industrial temperature rating meets the operational environment requirements. Cross-reference the ECCN code EAR99 for export compliance needs. Validate that the 0.02 mA supply current fits the system's power budget constraints.

Selection Notes

Select this component when designing protection for 3 to 5 cell lithium-based battery systems requiring integrated monitoring. The TSSOP20 package offers a balance of pin count and board space efficiency. Consider the industrial temperature range if the application involves variable environmental conditions. The low supply current supports energy-efficient designs where standby consumption is critical. Ensure compatibility with the specific cell chemistry and voltage levels defined by the P05 suffix specifications.

Part Context

The MM3474P05VBE is part of the broader MM3474 series, which includes variants like MM3474G01VBE and MM3474E02VBE. These components share the same core functionality as multi-cell battery protection ICs. The series is distinct from other Mitsumi products such as the MM3055 regulator or MM3478 LDO. All members of this family are designed for lithium-ion and lithium-polymer battery protection, differing primarily in specific electrical parameters or packaging details indicated by their unique ordering codes.

Replacement Considerations

Direct substitutes within the same series include MM3474G01VBE and MM3474E02VBE, provided the specific electrical characteristics of the P05 variant align with the system requirements. Verify pin-to-pin compatibility and identical package dimensions before substitution. Consult official manufacturer documentation to ensure functional equivalence regarding protection thresholds and operating temperatures.