BQ21080YBGR

Battery Chargers Overview

The BQ21080YBGR is an I²C programmable linear battery charger designed for single-cell Li-ion and LiFePO4 batteries. It features a regulated power path with an input voltage operating range of 3.0 V to 5.9 V, optimized for USB adapters and battery-to-battery charging applications. The device supports a maximum charge current of 800 mA and includes a 25-V tolerant input. Packaged in an 8-DSBGA (1.6x1.1 mm) format, it implements standard three-phase charging profiles: precharge, constant current, and constant voltage.

Battery Chargers Feature Summary

• I²C programmable control interface for configuration
• Regulated power path management for system operation
• Support for Li-ion and LiFePO4 chemistries
• 25-V tolerant input voltage capability

Battery Chargers Applications

• USB adapter powered devices
• Battery-to-battery charging systems
• Portable consumer electronics
• Single-cell lithium battery protection and charging

Battery Chargers Procurement Notes

Verify the specific suffix YBGR corresponds to the 8-DSBGA package and tape-and-reel quantity requirements. Confirm that the I²C address and programming parameters align with your system design before procurement. Ensure input voltage specifications remain within the 3.0 V to 5.9 V operational range to maintain device integrity and performance standards.

Battery Chargers Selection Notes

Select this component when I²C configurability and a compact DSBGA footprint are required for single-cell charging. It is suitable for designs needing a regulated power path to manage system loads during charging. Consider the 800 mA current limit and 25-V input tolerance when evaluating compatibility with upstream power sources and battery types.

Battery Chargers Part Context

This part belongs to Texas Instruments' BQ21080 family of I²C-controlled linear chargers. It is specifically engineered for portable applications requiring precise battery management. The YBGR suffix denotes the specific package type and reel configuration, distinguishing it from other variants in the same functional family.

Battery Chargers Replacement Considerations

Consult official substitution lists for pin-compatible or functionally equivalent TI chargers. Verify that any alternative maintains the 800 mA current rating and I²C interface compatibility. Ensure the replacement supports the same Li-ion or LiFePO4 chemistries and operates within the required input voltage range.