MC3761PK4HAU

Overview

The MC3761PK4HAU is a single-cell protection integrated circuit manufactured by Mitsumi Electric Company Ltd. It integrates MOS-FETs to protect rechargeable Lithium-ion or Lithium-polymer batteries against overcharge and overdischarge conditions. The device operates within an ambient temperature range of -40°C to 85°C. It belongs to the MC3761 series and is housed in a 6-XFDFN package with an exposed pad. The component is RoHS compliant and lead-free, ensuring environmental safety standards are met for modern electronic assemblies.

Feature Summary

• Integrates MOS-FETs for direct battery protection
• Protects against overcharge and overdischarge states
• Suitable for Lithium-ion and Lithium-polymer chemistries

Applications

• Portable electronic devices requiring single-cell battery management
• Consumer electronics utilizing Li-ion power sources
• Industrial equipment with lithium polymer battery systems

Procurement Notes

Verify the specific suffix PK4HAU matches the required pinout and thermal pad configuration. Confirm RoHS compliance documentation is current. Ensure the XFDFN package dimensions align with PCB footprint designs. Check for active status availability through authorized distributors to avoid obsolete stock issues.

Selection Notes

Select this IC when a compact solution for single-cell lithium battery protection is needed. The integrated FET design reduces external component count compared to discrete solutions. Consider the operating temperature range of -40°C to 85°C for environmental suitability. Verify that the voltage thresholds meet the specific cell requirements of the target application.

Part Context

This component is part of the MC3761 series from Mitsumi Electric Company Ltd. The series focuses on internal memory protection ICs for secondary batteries. The MC3761PK4HAU variant specifically addresses single-cell applications, providing a cost-effective and space-saving alternative to multi-component protection circuits in portable electronics.

Replacement Considerations

Consult official datasheets for cross-reference compatibility. Verify pin-to-pin equivalence and electrical parameter alignment before substitution. Ensure the replacement maintains the same package type and thermal characteristics.