Texas Instruments BQ25125 | Digi-Key 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.

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