MM3220D05NRH

Overview

The MM3220D05NRH is a battery protection integrated circuit designed for two-cell lithium-ion or lithium-polymer battery packs. Manufactured by Mitsumi Electric Company Ltd, it operates within an ambient temperature range of -40°C to +85°C and utilizes a surface-mount SOT-26A package (SOT-23-6 pinout). The device provides comprehensive fault protection against overcurrent, overvoltage, and short circuit conditions to ensure battery safety.

Feature Summary

• Integrated protection for two-cell lithium-ion and polymer battery configurations
• Hardware-based safeguards against overcurrent, overvoltage, and short circuit events
• Designed for surface-mount assembly in compact electronic devices

Applications

• Two-cell lithium-ion battery pack management
• Lithium-polymer battery protection circuits
• Portable consumer electronics with dual-cell power sources

Procurement Notes

Verify the specific suffix 'D05' against the official Mitsumi datasheet to confirm exact threshold parameters and revision status. Ensure the ordering part number matches the required SOT-26A package variant. Confirm RoHS compliance and ECCN classification details directly from the manufacturer's documentation prior to procurement.

Selection Notes

Select this component when designing protection circuits for two-series cell architectures requiring integrated fault detection. Verify that the operating voltage range and current limits align with the specific battery chemistry and load requirements. Ensure the thermal environment remains within the specified -40°C to +85°C operational window for reliable performance.

Part Context

This component belongs to the MM3220 series of battery protection ICs from Mitsumi Electric. It serves as a specialized solution for managing dual-cell battery stacks, offering a compact alternative to discrete protection solutions. The series is engineered for high reliability in portable applications where space and efficiency are critical constraints.

Replacement Considerations

Cross-reference with other MM3220 variants such as MM3220C03NRH or MM3220AA1NRH only if electrical thresholds and pin compatibility are verified via official datasheets. Do not assume interchangeability without confirming specific parameter differences.