BQ24091DGQR

Battery Chargers Overview

The BQ24091DGQR is a 1A single-input, single-cell Li-Ion battery charger from Texas Instruments. It operates within an input voltage range supporting non-regulated adapters and includes overvoltage protection up to 6.6V. The device integrates thermal regulation at 125°C and thermal shutdown at 150°C. It supports JEITA temperature compensation and features a 10-hour safety timer. The component is housed in a 10-pin MSOP PowerPAD package with an operating temperature range of -40°C to 150°C.

Battery Chargers Feature Summary

• Integrates linear charge management with programmable termination and pre-charge thresholds via external resistors.
• Supports system load sharing by allowing parallel connection with the battery during charging cycles.
• Includes automatic termination and timer disable mode when battery pack presence is lost.
• Provides status indication for charging and completion states through dedicated pins.

Battery Chargers Applications

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

Battery Chargers Procurement Notes

Verify the suffix 'DGQR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the specific revision level matches the design requirements for thermal performance and electrical characteristics. Ensure compatibility with the intended PCB footprint for the 10-MSOP-PowerPAD package to maintain proper heat dissipation capabilities.

Battery Chargers Selection Notes

Select this component for applications requiring a compact solution for single-cell lithium-ion batteries. It is suitable for designs powered by USB ports or AC adapters where space is limited. Consider the integrated thermal regulation if the application environment may experience elevated temperatures. Verify that the 1A charging current meets the battery specifications and system power budget constraints.

Battery Chargers Part Context

This part belongs to the bq2409x family of highly integrated lithium-ion and lithium-polymer battery chargers. The series is designed for space-constrained portable electronics. These devices typically operate from USB or AC adapter sources and feature high input voltage ranges to accommodate low-cost, non-regulated power supplies while maintaining efficient charging profiles.

Battery Chargers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.