BQ24105RHLR in TI BQ24xxx / BQ25xxx Battery Charge Family
The BQ24105RHLR is a highly integrated, stand-alone synchronous switch-mode lithium-ion battery charger from Texas Instruments. Designed for 1-cell, 2-cell, or 3-cell battery packs, this family provides high-efficiency power conversion and precise charging control. It is primarily utilized in portable applications where heat dissipation is a concern, as its switching architecture significantly reduces thermal load compared to linear regulators while supporting charge currents up to 2A.
Variants in This Sub-Family
Variants within the BQ2410x/11x family differ primarily in their regulation voltage targets and fixed versus adjustable configurations. Some models are optimized for single-cell 4.2V operation, while others allow for external resistor dividers to set multi-cell thresholds. Additional variations include different status pin configurations (LED drivers) and specific thermal pad layouts in the RHL (VQFN) package to optimize heat dissipation during high-current charging cycles.
