MM3220MC1NRH

Overview

The MM3220MC1NRH is a fixed positive single output LDO regulator and two-cell battery protection IC manufactured by Mitsumi Electric. Designed for lithium-ion and polymer batteries, it operates within a temperature range of -40 °C to 85 °C. The device is housed in an SOT-26A or SOT-23-6 package and supports surface mount technology (SMT) installation.

Feature Summary

• Provides protection against over-current, over-voltage, and short-circuit faults for lithium-ion/polymer batteries
• Designed specifically for two-cell battery configurations
• Operates reliably across extended industrial temperature ranges

Applications

• Lithium-ion battery pack protection
• Lithium-polymer battery management systems
• Portable electronic devices requiring dual-cell safety

Procurement Notes

Verify the specific datasheet version and package designation (SOT-26A vs SOT-23-6) as sources vary. Confirm lifecycle status and lead times directly with authorized distributors. Ensure compatibility with target battery chemistry and voltage levels before integration.

Selection Notes

Select this component for applications requiring integrated protection for two-cell lithium-based battery systems. Consider the operating temperature range and surface-mount package constraints during PCB layout. Verify that the fault protection thresholds align with the specific battery cell specifications.

Part Context

This part belongs to the MM3220 series of battery protection ICs from Mitsumi Electric. It serves as a specialized solution for managing safety in dual-cell lithium battery architectures, distinguishing itself from general-purpose regulators by focusing on fault detection and isolation.

Replacement Considerations

Check for direct substitutes such as MM3220K01NRH or MM3220C03NRH, which share similar two-cell protection functions. Verify pinout compatibility and electrical parameter alignment before substitution.