BQ24093DGQT

Battery Chargers Overview

The BQ24093DGQT is a highly integrated single-cell lithium-ion and lithium-polymer battery linear charger from Texas Instruments, designed for space-constrained portable applications. It operates from USB ports or AC adapters, featuring an input voltage range with overvoltage protection to support low-cost non-regulated adapters. The device provides a single power output for battery charging while allowing system loads to connect in parallel with the battery. It supports JEITA thermal management and includes a 10 kΩ NTC thermistor interface for temperature monitoring.

Battery Chargers Feature Summary

• Integrates high-precision current and voltage regulation loops with built-in charge status indication and termination functions.
• Supports programmable pre-charge and termination current thresholds via external resistors, alongside adjustable fast-charge current settings.
• Includes dynamic input current limiting selectable between 100 mA and 500 mA for USB compatibility.
• Features comprehensive protection mechanisms including overvoltage protection, thermal regulation at 125°C, thermal shutdown at 150°C, and output short-circuit detection.

Battery Chargers Applications

• Smartphones
• Personal Digital Assistants (PDAs)
• MP3 players
• Low-power handheld devices

Battery Chargers Procurement Notes

Verify the specific suffix 'DGQT' against official Texas Instruments documentation to confirm package type, tape-and-reel quantity, and temperature grade. Ensure the component matches the required JEITA compliance and input voltage specifications for your design. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and supply chain integrity before procurement.

Battery Chargers Selection Notes

Select this component for designs requiring a compact solution for single-cell Li-Ion or Li-Po batteries where board space is limited. It is suitable for systems powered by standard USB interfaces or unregulated AC adapters. Consider its thermal management capabilities and integrated protection features when designing for environments with variable temperatures or potential electrical faults.

Battery Chargers Part Context

This device belongs to the bq2409x family of battery chargers, which are optimized for portable electronics. The family offers varying current ratings and feature sets, but the BQ24093 specifically targets applications needing efficient linear charging with robust protection and thermal regulation within a small footprint.

Battery Chargers Replacement Considerations

Consult Texas Instruments datasheets for direct pin-compatible alternatives within the bq2409x series or other single-cell charger families. Verify that any substitute maintains compatible input voltage ranges, thermal protection thresholds, and package dimensions to ensure seamless integration without redesigning the PCB layout.