BQ77910DBT

Battery Management Overview

The BQ77910DBT is a standalone multi-cell precision protector designed for lithium-ion and lithium-polymer battery chemistries. It supports stacks of 4 to 10 series-connected cells and operates within an ambient temperature range of -25°C to 85°C. The device integrates overcurrent, short-circuit, overvoltage, undervoltage, and overtemperature protection functions. Communication with external microcontrollers is facilitated via an I2C interface. The component is housed in a 38-TSSOP package.

Battery Management Feature Summary

• Integrated protection against overcurrent, short-circuit, overvoltage, undervoltage, and overtemperature conditions
• I2C digital interface for configuration and status monitoring
• Supports standalone operation for 4 to 10 series-connected lithium-ion or polymer cells

Battery Management Applications

• Lithium-ion battery packs for portable electronics
• Power tool battery systems
• Medical equipment power supplies
• Uninterruptible power supply (UPS) modules

Battery Management Procurement Notes

Verify the specific suffix 'DBT' against the manufacturer's current datasheet to confirm package type and tape/reel specifications. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Check for obsolescence notices as this part may be designated as not recommended for new designs.

Battery Management Selection Notes

Select this component when designing single-stack battery protection circuits requiring high precision without the complexity of stackable architectures. Ensure the application voltage does not exceed the device limits and that the cell count falls between four and ten. Verify thermal management capabilities for the operating environment.

Battery Management Part Context

This part belongs to the BQ77910 family of multi-cell lithium-ion/polymer precision protectors from Texas Instruments. It serves as a dedicated safety controller for battery management systems, distinguishing itself through integrated analog protection circuitry and digital communication capabilities within a compact surface-mount package.

Battery Management Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's official replacement guide or contact technical support for verified alternatives.