Texas Instruments BQ25125 | DigiKey Daily

Texas Instruments offers their BQ25125 battery charge management solution. This device is a highly-integrated battery charge management IC that integrates very common functions for wearable devices including a linear charger, a regulated output, a load switch, a manual reset with a timer, and a battery voltage monitor. The integrated buck converter is a high-efficiency, low-IQ switcher using DCS control that extends light-load efficiency down to 10-microamp load currents. Offered in a small 2.5 by 2.5 millimeter package, this device supports charge currents from 5 to 300 milliamps. The battery is charged using a standard Li-Ion charge profile with three phases including precharge, constant current and constant voltage. Applications include wearable devices, fitness accessories, health monitoring medical accessories, wirelessly charged products, and more.