BQ25171DQWDRCRQ1

Battery Chargers Overview

The BQ25171DQWDRCRQ1 is an automotive-grade single-cell linear battery charger IC designed for lithium iron phosphate (LiFePO4) applications. It supports a maximum input voltage of 6V and delivers up to 800mA of programmable charging current. The device integrates thermal regulation to manage power dissipation and includes protection features such as overvoltage, overtemperature, and reverse current blocking. Packaged in a compact 6-pin WSON format, it operates within a temperature range of -40°C to +125°C and meets AEC-Q100 qualification standards.

Battery Chargers Feature Summary

• Integrated thermal regulation for automatic current reduction during high-temperature operation
• Reverse current blocking capability to prevent battery discharge when input power is removed
• Programmable charge termination based on timer or current threshold detection
• Automotive-grade reliability with AEC-Q100 certification

Battery Chargers Applications

• Single-cell LiFePO4 battery charging in automotive telematics units
• Power management for automotive sensor modules
• Charging solutions for automotive infotainment backup systems
• Battery management in automotive lighting control units

Battery Chargers Procurement Notes

Verify the complete part number including suffixes against official Texas Instruments documentation to ensure correct package, tape/reel configuration, and automotive grade specifications. Confirm that the supplier provides valid traceability and authenticity guarantees for AEC-Q100 qualified components. Cross-reference the manufacturer date code and lot information with the datasheet requirements to ensure compliance with moisture sensitivity level handling procedures.

Battery Chargers Selection Notes

Select this component when designing for single-cell lithium iron phosphate batteries requiring integrated thermal management and reverse current protection. Ensure the system input voltage does not exceed the 6V absolute maximum rating. Verify that the PCB layout supports the WSON package thermal pad connection for optimal heat dissipation. Consider the 800mA maximum output current limit when sizing external components and battery capacity.

Battery Chargers Part Context

This device belongs to the BQ2517x family of single-cell linear chargers optimized for automotive environments. It complements other Texas Instruments battery management solutions by providing a cost-effective, space-saving charging interface for LiFePO4 chemistries commonly used in automotive applications due to their safety and longevity characteristics.

Battery Chargers Replacement Considerations

BQ25171DQWDRQ1

Battery Chargers FAQ

Does the BQ25171 support lithium-ion chemistry?

No, the BQ25171 is specifically designed for lithium iron phosphate (LiFePO4) batteries and is not recommended for standard lithium-ion or lithium-polymer cells.

How does the device handle overheating?

The IC features integrated thermal regulation that automatically reduces the charging current if the die temperature exceeds a safe threshold to prevent damage.