BQ2023PWR – TEXAS INSTRUMENTS

The BQ2023PWR is a highly integrated, single-cell Li-ion battery charger IC from Texas Instruments, optimized for space-constrained applications requiring high efficiency and minimal external components. It operates from a 3.5V to 5.5V input voltage range, featuring a programmable charging current up to 1A and a termination voltage adjustable from 4.1V to 4.2V, allowing for precise battery management. The device utilizes a sophisticated charge algorithm incorporating pre-charge, constant-current, and constant-voltage phases, culminating in a trickle-charge stage for optimal battery health. Its internal power path MOSFET eliminates the need for external switching components, simplifying design and reducing board space. The BQ2023PWR is packaged in a space-saving 6-pin WSON (WCSP) package, measuring just 2mm x 2mm. Common use cases include portable devices, wearables, and other battery-powered systems with limited space and power budgets. Its key advantages lie in its high efficiency, minimal external component count, small form factor, and robust charge algorithm, making it an ideal choice for applications demanding both performance and compact design. The integrated thermal shutdown and short-circuit protection further enhance its reliability.