BQ29209DRBT

Battery Management Overview

The BQ29209DRBT is a battery protection IC designed for lithium-ion and lithium-polymer cells. It provides over-voltage protection with an output voltage threshold of 4.3 V. The device operates on a supply voltage up to 10 V and features automatic cell balancing functionality. It draws a typical operating supply current of 3 uA. The component is housed in an 8-pin SON package and supports surface mount installation. It functions within a temperature range of -40 C to +85 C.

Battery Management Feature Summary

• Automatic cell balancing capability for maintaining cell equilibrium
• Over-voltage protection mechanism for single-cell monitoring
• Ultra-low quiescent current consumption for extended standby life

Battery Management Applications

• Protection circuits for portable electronic devices
• Battery management systems for consumer electronics
• Lithium-ion battery pack safety modules

Battery Management Procurement Notes

Verify the specific ordering suffix DRBT against the manufacturer's official datasheet to ensure correct packaging and tape-and-reel specifications. Confirm that the intended application environment remains within the specified -40 C to +85 C operating temperature range. Check RoHS compliance status through the official product page before procurement.

Battery Management Selection Notes

Select this component when designing protection circuits for single-cell lithium-based batteries requiring integrated balancing. Ensure the system voltage does not exceed the 10 V maximum operating supply limit. Consider the 8-pin SON package constraints for PCB layout and thermal dissipation requirements during the design phase.

Battery Management Part Context

This part belongs to the BQ29209 series of battery protection ICs from Texas Instruments. It is categorized under PMIC - Power Management ICs. The device serves as a specialized solution for safeguarding individual cells in series configurations, distinct from multi-cell protection variants like the BQ29449.

Battery Management Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.