MM3220C03NRH

Overview

The MM3220C03NRH is a battery protection integrated circuit designed for lithium-ion and lithium-polymer battery systems. It supports two-cell configurations and provides comprehensive fault protection against overcurrent, overvoltage, and short circuits. The device operates within a temperature range of -40°C to 85°C and is housed in an SOT-26A surface-mount package.

Feature Summary

• Integrated protection for two-cell lithium-ion or polymer battery packs
• Automatic response to overcurrent, overvoltage, and short-circuit conditions
• Designed for surface-mount assembly in compact electronic devices

Applications

• Lithium-ion battery pack protection
• Lithium-polymer battery management systems
• Portable electronic device power safety

Procurement Notes

Verify the specific suffix NRH against the manufacturer's official datasheet to confirm pinout compatibility and functional specifications. Ensure the component meets the required operating temperature range and voltage ratings for the target application. Cross-reference the package type SOT-26A with the PCB footprint design to guarantee correct physical installation.

Selection Notes

Select this component when protecting two-series lithium cells requiring integrated overvoltage and overcurrent safeguards. Consider the SOT-26A package size constraints and the -40°C to 85°C operational range. Evaluate if the built-in fault protection mechanisms align with the system's safety requirements without needing external discrete components.

Part Context

This part belongs to the MM3220 series of battery protection ICs manufactured by Mitsumi Electric. These devices are engineered specifically for safeguarding rechargeable lithium-based batteries in portable electronics. The series focuses on providing reliable protection in a minimal footprint, addressing common failure modes in battery-powered applications.

Replacement Considerations

Consult official substitution lists from Mitsumi Electric for verified equivalents. Ensure any replacement maintains the same cell count support, package type, and protection thresholds.