BQ24120RHLTG4

Battery Chargers Overview

The BQ24120RHLTG4 is a synchronous switch-mode single-cell lithium-ion battery charger manufactured by Texas Instruments. It operates within a supply voltage range of up to 16V and delivers a maximum programmable charging current of 2A. The device supports a battery pack voltage of 4.2V and functions reliably across an operating temperature range of -40°C to +85°C. It utilizes a 20-pin HQCCN QFN package (3.5x4.5mm) with exposed pad for thermal management.

Battery Chargers Feature Summary

• Synchronous rectification architecture for high conversion efficiency
• Integrated power path management for system load prioritization
• Programmable charge timer and input current limit control

Battery Chargers Applications

• Portable consumer electronics requiring single-cell Li-Ion charging
• Handheld medical devices
• Industrial handheld instruments

Battery Chargers Procurement Notes

Verify the specific suffix 'G4' against the manufacturer's latest datasheet to confirm lead-free status and RoHS compliance, as packaging codes may vary. Ensure the ordering part number matches the exact pinout and thermal requirements for your PCB layout. Cross-reference the component marking code with official identification guides to prevent counterfeit substitution during assembly.

Battery Chargers Selection Notes

Select this component when a compact solution for single-cell lithium-ion batteries is required with integrated power path management. It is suitable for applications where space constraints necessitate a small QFN footprint while maintaining efficient synchronous switching performance. Consider thermal dissipation requirements due to the exposed pad design in high-current scenarios.

Battery Chargers Part Context

This device belongs to the bqSWITCHER family of battery chargers from Texas Instruments. It is designed to replace older linear charger solutions by offering higher efficiency through synchronous switching technology. The part shares functional similarities with other members of the BQ241xx series but is optimized specifically for single-cell applications with integrated protection features.

Battery Chargers Replacement Considerations

Check for direct pin-to-pin compatible alternatives within the same bqSWITCHER family if availability is constrained. Verify that any substitute maintains the same 20-VQFN package dimensions and thermal characteristics to ensure mechanical compatibility.