MM3220JA1NRH

Overview

The MM3220JA1NRH is a battery protection integrated circuit designed for two-cell lithium-ion or lithium-polymer battery packs. Manufactured by Mitsumi Electric Company Ltd, this device provides comprehensive protection against over-current, over-voltage, and short-circuit conditions to ensure battery safety. It operates within a temperature range of -40°C to 85°C and is housed in an SOT-26A package, suitable for surface-mount assembly.

Feature Summary

• Provides dual-cell battery protection for lithium-ion and lithium-polymer chemistries
• Integrates fault protection mechanisms including over-current, over-voltage, and short-circuit detection
• Designed for surface-mount installation in compact electronic devices

Applications

• Protection circuits for two-cell lithium-ion battery packs
• Safety management in portable consumer electronics
• Battery management systems requiring over-voltage and short-circuit isolation

Procurement Notes

Verify the specific suffix and revision level against the manufacturer's latest datasheet to ensure compatibility with your design requirements. Confirm that the SOT-26A package dimensions match your PCB footprint exactly. Check for any updated environmental compliance certifications or lead-free status declarations from Mitsumi Electric before finalizing procurement orders.

Selection Notes

Select this component when designing protection circuits specifically for two-series cell configurations. Ensure the application environment stays within the specified -40°C to 85°C operating temperature range. Verify that the required fault response times align with the system's safety standards. Consider the SOT-26A package constraints during layout planning to maintain thermal and electrical integrity.

Part Context

This part belongs to the MM3220 series of battery protection ICs from Mitsumi Electric. The series focuses on safeguarding multi-cell lithium-based batteries in portable applications. Similar parts in the family may offer variations in current thresholds or package types, but all share the core function of preventing hazardous battery conditions through integrated monitoring and switching capabilities.

Replacement Considerations

Direct substitutes include other MM3220 series variants such as MM3220AA1NRH or MM3220C03NRH, which also support two-cell protection. Verify pinout compatibility and specific fault threshold values before swapping components to ensure system stability and safety compliance.