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Product Detailed Parameters
- Description：IC, TWO CELL, BATTERY PROTECTION
- Series：MM3220
- Mfr：Mitsumi Electric Company Ltd
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Battery Protection
- Battery Chemistry：Lithium Ion/Polymer
- Number of Cells：2
- Fault Protection：Over Current, Over Voltage, Short Circuit
- Interface：-
- Operating Temperature：-40°C ~ 85°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：SOT-23-6
- Supplier Device Package：SOT-26A
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Overview
The MM3220AA1NRH is a battery protection integrated circuit designed for lithium-ion and lithium-polymer battery packs. 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 package.
Feature Summary
- Integrated protection for two-cell lithium-ion or polymer battery systems
- Detects and responds to overcurrent, overvoltage, and short circuit conditions
- Designed for surface mount installation in compact electronic assemblies
Applications
- Lithium-ion battery pack management
- Lithium-polymer battery protection circuits
- Portable electronic device power systems
Procurement Notes
Verify the specific suffix 'AA1' against the manufacturer's official datasheet to confirm exact electrical characteristics and pinout compatibility. Ensure the SOT-26A package variant matches the target PCB footprint requirements. Confirm that the operating temperature range meets the environmental specifications of the final application before procurement.
Selection Notes
Select this component when designing protection circuits for dual-cell lithium-based battery architectures requiring integrated fault detection. Consider the SOT-26A package constraints for board space limitations. Validate that the overcurrent and overvoltage thresholds align with the specific cell chemistry and system safety requirements defined by the equipment manufacturer.
Part Context
This part belongs to the MM3220 series of battery protection ICs manufactured by Mitsumi Electric Co Ltd. The series focuses on safeguarding rechargeable battery cells from hazardous electrical conditions. The MM3220AA1NRH specifically addresses two-cell applications, distinguishing it from single-cell or multi-cell variants within the broader product family.
Replacement Considerations
Consult official substitution lists for compatible battery protection ICs with identical SOT-26A footprints and two-cell support capabilities. Verify functional equivalence regarding overcurrent and overvoltage protection mechanisms before considering alternative components.
