BQ25175YBGR

Battery Chargers Overview

The BQ25175YBGR is a standalone single-cell linear battery charger from Texas Instruments, designed for lithium-ion and lithium-polymer batteries. It features an integrated power stage with a fixed 4.35V output voltage and supports charging currents programmable from 10mA to 800mA via an external resistor. The device operates within a 3V to 6.6V input supply range and includes comprehensive protection mechanisms such as overvoltage, overcurrent, thermal regulation, and short-circuit protection.

Battery Chargers Feature Summary

• Integrated linear charge management with automatic termination and state indication
• Thermal regulation reduces current when junction temperature exceeds thresholds
• NTC thermistor input enables monitoring of battery temperature during charging
• Low quiescent current design minimizes system standby power consumption

Battery Chargers Applications

• Smart trackers
• True wireless earbuds
• Smart remote controls
• Pulse oximeters
• Blood glucose monitors

Battery Chargers Procurement Notes

Verify the complete part number including the YBGR suffix to ensure correct package and tape/reel configuration. Confirm that the specific revision matches the intended application requirements. Cross-reference the datasheet version to validate electrical characteristics against current production standards. Ensure compatibility with the target PCB footprint and soldering profile for the BGA-6 package.

Battery Chargers Selection Notes

Select this component for applications requiring a compact, single-cell charging solution with minimal external components. The fixed 4.35V regulation suits standard Li-Ion/Poly cells. Consider the 800mA maximum current limit when sizing for larger battery capacities. Evaluate the need for NTC integration if precise thermal monitoring is critical for safety compliance in portable medical or consumer devices.

Battery Chargers Part Context

This device belongs to the BQ2517x series of standalone linear chargers. It shares functional similarities with other members like the BQ25172 but differs in cell support and specific protection features. The BQ25175 is optimized for single-cell chemistries, distinguishing it from multi-cell variants in the broader portfolio.

Battery Chargers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official Texas Instruments resources for potential obsolescence notices or recommended upgrades.