BQ29412PWG4

Battery Management Overview

The BQ29412PWG4 is a secondary overvoltage protection IC designed for lithium-ion battery packs containing two, three, or four cells. It operates within a supply voltage range of 4 V to 25 V and features an output voltage threshold of 4.45 V. The device is housed in an 8-pin TSSOP package (SM-8) and supports surface-mount installation. It functions reliably across an operating temperature range from -40°C to +110°C.

Battery Management Feature Summary

• Provides secondary overvoltage protection for multi-cell lithium-ion battery configurations
• Designed specifically for 2-, 3-, or 4-cell battery pack architectures
• Operates within a wide supply voltage range suitable for various battery systems

Battery Management Applications

• Secondary protection circuits for portable electronic devices
• Battery management systems requiring overvoltage safeguards
• Lithium-ion battery pack assemblies for consumer electronics

Battery Management Procurement Notes

Verify the specific suffix 'G4' indicates RoHS compliance and lead-free status as per Texas Instruments documentation. Confirm the package type matches the required PCB footprint. Ensure the application voltage does not exceed the specified 25 V maximum operating limit. Check for any specific handling requirements related to moisture sensitivity levels defined in the datasheet.

Battery Management Selection Notes

Select this component when secondary overvoltage protection is required for 2 to 4 cell lithium-ion batteries. The fixed 4.45 V threshold suits standard lithium-ion chemistry limits. The TSSOP-8 package offers a compact solution for space-constrained designs. Consider the operating temperature range if the environment exceeds standard commercial limits.

Battery Management Part Context

This part belongs to the BQ2941x series of battery protection ICs from Texas Instruments. These components are engineered to provide reliable secondary protection against overvoltage conditions in lithium-ion battery packs. The series includes variants with different thresholds and packages to accommodate diverse battery management system requirements.

Battery Management Replacement Considerations

Publicly confirmed substitute part numbers for BQ29412PWG4 were not identified in the provided source material. Verify compatibility with existing circuit designs before considering alternative components.