BQ24090DGQR

Battery Chargers Overview

The BQ24090DGQR is a highly integrated single-cell lithium-ion and lithium-polymer battery linear charger manufactured by Texas Instruments. Designed for space-constrained portable applications, it operates from USB ports or AC adapters with an input voltage range supporting non-regulated sources. The device features a 1 A charge current capability and includes power path management to supply system loads in parallel with the battery. It supports JEITA thermal regulation and integrates protection mechanisms such as overvoltage, thermal shutdown, and output short-circuit protection within a compact 10-pin MSOP package.

Battery Chargers Feature Summary

• Integrates high-side N-channel MOSFETs for efficient power path management and system load sharing
• Supports programmable input current limiting via external resistors to comply with USB specifications
• Includes automatic thermal regulation to reduce charging current when internal temperature thresholds are exceeded
• Features a fixed 10-hour safety timer to prevent overcharging if the battery is not detected

Battery Chargers Applications

• Smartphones and mobile phones
• Personal Digital Assistants (PDAs)
• MP3 players and audio devices
• Low-power handheld equipment

Battery Chargers Procurement Notes

Verify the specific suffix DGQR corresponds to the MSOP-10 package and tape-and-reel quantity specified in the official datasheet. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure the ordering information matches the exact pinout and electrical characteristics defined by Texas Instruments for this part number variant.

Battery Chargers Selection Notes

Select this component for designs requiring a single-input, single-cell charging solution with integrated power path management. It is suitable for applications where board space is limited due to its small footprint. Consider the input voltage range and thermal performance when designing for non-regulated adapter inputs. Verify that the required charge current and termination thresholds align with the external resistor configuration options provided.

Battery Chargers Part Context

This device belongs to the bq2409x family of battery chargers from Texas Instruments. The family offers various configurations for single-cell Li-Ion and Li-Pol batteries, differing primarily in package types, input voltage ranges, and specific feature sets like solar charging support. The BQ24090DGQR represents the standard 1 A single-input variant optimized for general portable electronics.

Battery Chargers Replacement Considerations

Compatible alternatives within the same family include the BQ24090DGR and BQ24090DGQT. These parts share identical electrical functionality but differ in packaging (SOIC vs. MSOP) or reel quantities. Verify pin compatibility and thermal dissipation requirements when substituting.