December 14, 2015 - Mouser Electronics, Inc. is now stocking the bq25120 battery management IC from Texas Instruments (TI). The bq25120 is the industry’s smallest and lowest-power battery management solution in the wearables market, requiring a no-load quiescent current of just 700 nA at 1.8V when the buck converter is enabled. The solution supports batteries from 3.6V to 4.65V, and fast charge currents from 5mA to 300mA, allowing wearables and industrial Internet of Things (IoT) applications to always be on without draining the battery.
TI’s bq25120 battery management IC, now available from Mouser Electronics, features a linear charger, configurable low-dropout (LDO) regulator, load switch, buck converter, pushbutton control, and battery voltage monitor in a diminutive 2.5mm² WCSP package. The bq25120 integrates a high-efficiency, low-quiescent-current buck converter with TI’s DCS-control architecture that extends light-load efficiency down to 10-µA load currents. Low quiescent current during operation and shutdown enables maximum battery life, and the device’s accurate charge termination down to 500 µA maximizes the energy delivered to the battery before completing the charging cycle, allowing batteries to draw a more robust full charge.
The bq25120's I²C programming interface allows designers to set key parameters including battery charger voltage, current, termination threshold, input current limit, load switch control, flexible timer, and reset options. The device is supported by the bq25120EVM-731 evaluation module, a high-performance, easy-to-use development kit that helps engineers design flexible power management solutions based on the onboard bq25120 IC. The bq25120 IC and evaluation module are ideal for smartwatches and other wearable devices, health monitoring accessories, and rechargeable toys.
To learn more, visit http://www.mouser.com/new/Texas-Instruments/ti-bq25120-battery-charge/.
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