BQ24105RHLR – TEXAS INSTRUMENTS

The BQ24105RHLR is a Texas Instruments single-cell Li-ion/Li-polymer battery charger IC optimized for low-power applications. It features a highly integrated architecture, incorporating a switching regulator, a charge control circuit, and a system-level power path management unit within a small, space-saving WSON-10 package. The device operates with an input voltage range of 2.7V to 5.5V, efficiently charging a single-cell battery with a termination voltage programmable from 4.1V to 4.2V via an external resistor. It boasts a maximum charge current of 500mA, adjustable via an external resistor, making it suitable for applications requiring moderate charging speeds._x000D_
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The BQ24105RHLR incorporates several key features enhancing its performance and reliability: a programmable pre-charge current limiting, thermal shutdown protection, and a low-power input current mode, minimizing power consumption during standby. Its internal charge status indicators simplify system integration, allowing for precise monitoring of the charging process. Common use cases include wearable electronics, portable medical devices, and other battery-powered systems where size, efficiency, and robust protection are paramount. The device’s small form factor and integrated functionality significantly reduce external component count and PCB space, simplifying design and reducing overall system cost.