MM3474E02VBE

Overview

The MM3474E02VBE is a power supply support circuit manufactured by Mitsumi Electric Co Ltd. It is housed in a PDSO20 package, specifically a TSSOP with 20 terminals and a 0.635 mm pitch. 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 with gull-wing terminals. This monolithic IC provides overcharge, overdischarge, and overcurrent protection for lithium-ion or lithium-polymer rechargeable secondary batteries consisting of 3 to 5 cells.

Feature Summary

• Monolithic integrated circuit designed for battery protection applications
• Detects overcharge, overdischarge, discharge overcurrent, and short circuits
• Compatible with 3 to 5 cell lithium-ion and lithium-polymer rechargeable secondary batteries

Applications

• Protection for 3-cell lithium-ion rechargeable secondary batteries
• Protection for 4-cell lithium-ion rechargeable secondary batteries
• Protection for 5-cell lithium-polymer rechargeable secondary batteries

Procurement Notes

Verify the component matches the exact part number MM3474E02VBE from Mitsumi Electric Co Ltd. Confirm the package type is TSSOP20 with a 0.635 mm terminal pitch. Ensure the operating temperature range meets the required -40 °C to 85 °C specifications. Check that the device is suitable for 3 to 5 cell lithium-ion or lithium-polymer battery systems. Validate compliance with relevant environmental standards if applicable.

Selection Notes

Select this component when designing protection circuits for multi-cell lithium-based battery packs. It is appropriate for applications requiring integrated detection of overcharge, overdischarge, and overcurrent conditions. Consider the TSSOP20 package constraints for PCB layout. Verify that the supply current requirements align with the system's power budget. Ensure the battery chemistry matches the supported lithium-ion or lithium-polymer types.

Part Context

The MM3474E02VBE belongs to the MM3474 series of battery protection ICs. These devices are engineered to safeguard lithium-ion and lithium-polymer batteries from hazardous electrical conditions. The series offers a compact solution for integrating protection functions directly into battery management systems. It eliminates the need for discrete components typically used for cell monitoring and cutoff control.

Replacement Considerations

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