BQ29400PW

Battery Management Overview

The BQ29400PWR is a secondary overvoltage protection integrated circuit designed for lithium-ion battery packs containing two to four cells. Manufactured by Texas Instruments, this device operates within a supply voltage range of 4 V to 25 V and supports an operating temperature range from -25°C to 85°C. It utilizes an 8-TSSOP surface-mount package with a width of 4.40 mm. The component provides critical overvoltage fault protection to ensure battery safety during charging or system anomalies.

Battery Management Feature Summary

• Provides secondary overvoltage protection for multi-cell lithium-ion battery configurations
• Operates within a wide supply voltage range suitable for various pack architectures
• Designed for surface-mount installation in compact electronic assemblies

Battery Management Applications

• Secondary protection circuits for portable electronic devices
• Battery management systems requiring overvoltage monitoring
• Lithium-ion battery pack safety modules

Battery Management Procurement Notes

Verify the specific suffix PWR against official Texas Instruments documentation to confirm the 8-TSSOP package and lead-free status. Confirm RoHS3 compliance and check current lifecycle status as distribution channels may list obsolete inventory. Ensure the ordering part number matches the exact functional requirements before procurement.

Battery Management Selection Notes

Select this component when secondary overvoltage protection is required for 2- to 4-cell lithium-ion batteries. Verify that the operating temperature range meets the application environment. Ensure the supply voltage stays within the specified limits. Consider package availability and lifecycle status if designing for long-term production.

Battery Management Part Context

This device belongs to the BQ29400 family of battery protection ICs from Texas Instruments. It serves as a dedicated secondary protection solution, complementing primary protection mechanisms. The family focuses on safeguarding lithium-ion cells against overvoltage conditions, ensuring reliability in consumer and industrial battery applications.

Battery Management Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Texas Instruments documentation for potential pin-compatible alternatives or updated series replacements.