UCC3911DPTR-3

Overview

The UCC3911DPTR-3G4 is a battery protection integrated circuit designed for two-cell lithium-ion or lithium-polymer battery packs. It operates within a temperature range of -20°C to +70°C and utilizes a surface-mount SOIC-16 package measuring 9.90 x 3.90 mm with a height of 1.50 mm. The device provides comprehensive fault protection against over-voltage, under-voltage, short circuits, and thermal events. It functions as a dedicated protector for portable electronics requiring reliable cell monitoring.

Feature Summary

• Integrated protection logic for dual-cell lithium-based battery architectures
• Automatic response to electrical faults including overvoltage, undervoltage, and short circuits
• Thermal shutdown capability to prevent overheating during abnormal operation

Applications

• Portable electronic devices utilizing two-cell lithium-ion battery configurations
• Lithium-polymer battery pack management systems
• Consumer electronics requiring integrated cell protection

Procurement Notes

Verify the specific suffix 'G4' when ordering, as it indicates RoHS compliance and green product status. Confirm that the 'P' in the base part number corresponds to the SOIC-16 package variant rather than other package types within the UCC3911 family. Ensure the application voltage requirements align with the standard operating parameters for two-cell lithium chemistries before finalizing procurement specifications.

Selection Notes

Select this component specifically for applications requiring protection of two-series lithium cells. Compare against single-cell variants like the UCC3952 if the system architecture differs. Verify that the SOIC-16 footprint fits the PCB layout constraints. Consider the -20°C to +70°C operating range to ensure suitability for the intended environmental conditions without requiring extended temperature grade parts.

Part Context

This component belongs to the Texas Instruments UCC391x series of battery protectors. It is functionally related to other members such as the UCC3911-1, which serves similar protective roles. The series focuses on providing robust safety mechanisms for rechargeable lithium batteries in compact form factors, distinguishing itself from general-purpose power management ICs by its specialized fault detection logic.

Replacement Considerations

The UCC3911-1 is listed as a related device within the same manufacturer portfolio. Verify pinout compatibility and exact voltage thresholds before substitution. No direct cross-manufacturer equivalents are confirmed in the provided documentation.