Texas Instruments BQ25185 Linear Battery Charger IC

Texas Instruments BQ25185 Linear Battery Charger IC is a 1-cell, 1A stand-alone linear battery charger with power path and solar input support. This linear charger IC focuses on small solution size and low quiescent current to extend battery life. The BQ25185 charger features an operating 3V to 18V input voltage range, 25V tolerant input voltage, up to 3.125A system loads, and 4.5V regulated system voltage (SYS). The BQ25185 charger IC uses a standard Li-ion or LiFePO₄ charge profile with three phases: precharge, constant current, and constant voltage. This battery charger IC is available in a small leadless package with a thermal pad that gives a thermal performance. Typical applications include TWS headset and charging case, smart glasses, AR, VR, wearable devices, retail automation and payment, and building automation.