BQ24105IRHLRQ1

Battery Chargers Overview

The BQ24105IRHLRQ1 is an automotive-grade, standalone synchronous buck battery charger IC from the bqSWITCHER family. It supports 1 to 3 series lithium-ion or polymer cells with a maximum charge current of 2A and a battery pack voltage up to 12.6V. The device operates on a supply voltage of up to 16V and features programmable constant-current and constant-voltage charging profiles. It includes integrated power path management for system load prioritization. The component is housed in a 20-VQFN package (3.5x4.5mm) and is qualified to AEC-Q100 standards for operation between -40°C and +85°C.

Battery Chargers Feature Summary

• Integrated synchronous buck converter architecture for high-efficiency charging
• Automotive qualification compliant with AEC-Q100 reliability standards
• Programmable charge current and timer settings for flexible configuration
• Built-in thermal regulation and overvoltage protection mechanisms

Battery Chargers Applications

• Automotive infotainment systems requiring robust battery charging
• Advanced driver-assistance systems (ADAS) power modules
• Vehicle telematics and connectivity units
• Automotive lighting control modules

Battery Chargers Procurement Notes

Verify the specific suffix 'IRHLRQ1' to confirm automotive grade and QFN packaging. Ensure compatibility with AEC-Q100 requirements for your target application. Check datasheet revisions for any pinout or electrical parameter updates. Confirm moisture sensitivity level handling during assembly. Validate that the 16V input limit suits your vehicle's power bus conditions.

Battery Chargers Selection Notes

Select this component when automotive certification is mandatory for battery charging applications. It is suitable for designs requiring up to 2A charging current for 1-3 cell configurations. Consider the 20-VQFN footprint for space-constrained PCB layouts. Evaluate the need for programmable parameters against fixed-parameter alternatives. Ensure the system can handle the thermal dissipation associated with 2A continuous charging.

Battery Chargers Part Context

This part belongs to Texas Instruments' bqSWITCHER family of switching battery chargers. It shares core topology with commercial variants like the BQ24105RHLR but adds automotive qualification. The family focuses on standalone solutions that integrate the switch, controller, and protection logic into a single compact package.

Battery Chargers Replacement Considerations

The BQ24105RHLR is the commercial equivalent without automotive qualification. Verify if AEC-Q100 compliance is strictly required before substituting. Other family members may offer different current ratings or cell counts.