BQ24091DGQT

Battery Chargers Overview

The BQ24091DGQT is a 1A single-input, single-cell Li-Ion battery charger from Texas Instruments. It operates within a wide input voltage range and supports USB port or AC adapter power sources. The device integrates high-precision current and voltage regulation loops with a fixed 10-hour safety timer. It features programmable termination and pre-charge thresholds via external resistors. The component includes thermal regulation at 125°C and thermal shutdown at 150°C. It utilizes a 10-pin MSOP PowerPAD package for space-constrained portable applications.

Battery Chargers Feature Summary

• Integrates linear charging power stage with system load sharing capability
• Supports JEITA temperature range operation using external NTC thermistors
• Includes dynamic power management to optimize input current limits
• Provides status indication for charge and completion states

Battery Chargers Applications

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

Battery Chargers Procurement Notes

Verify the specific suffix 'DGQT' indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status as per the manufacturer's latest documentation. Ensure the supplier provides valid traceability data for quality assurance purposes. Cross-reference the part number against the official Texas Instruments product selection guide to confirm availability and lifecycle status before finalizing procurement plans.

Battery Chargers Selection Notes

Select this component for designs requiring a compact solution for single-cell lithium-ion batteries. It is suitable for applications powered by non-regulated adapters due to its wide input voltage range. Consider the integrated thermal protection features for environments with limited airflow. The small 10-pin MSOP package makes it ideal for space-constrained portable electronics where board area is critical.

Battery Chargers Part Context

This device belongs to the bq2409x family of highly integrated lithium-ion and lithium-polymer battery chargers. The series is designed for portable applications requiring efficient charging profiles. The DGQT variant specifically denotes the surface-mount package configuration with reel packaging. It shares core functionality with other members of the bq2409x series while offering specific pinout and thermal characteristics.

Battery Chargers Replacement Considerations

The BQ24090 is a related device in the same family. Verify compatibility regarding input voltage ranges and package dimensions before substitution. Check if the target application requires the specific thermal management features unique to the BQ24091.