BQ25121YFPR

Product Folder Sample & Buy Support & Community Tools & Software Technical Documents BQ25120, BQ25121 SLUSBZ9C – AUGUST 2015 – REVISED SEPTEMBER 2016 bq2512x 700-nA Low IQ Highly Integrated Battery Charge Management Solution for Wearables and IoT 1 Features 2 Applications • • • • • 1 • • Smart Watches and other Wearable Devices Fitness Accessories Health Monitoring Medical Accessories Rechargeable Toys 3 Description The bq2512x is a highly integrated battery charge management IC that integrates the most common functions for wearable devices: Linear charger, regulated output, load switch, manual reset with timer, and 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-µA load currents. The low quiescent current during operation and shutdown enables maximum battery life. The device supports charge currents from 5 mA to 300 mA. The input current limit, charge current, buck converter output voltage, LDO output voltage, and other parameters are programmable through the I2C interface. Device Information(1) PART NUMBER BQ2512x PACKAGE BODY SIZE (NOM) DSBGA (25) 2.50 mm x 2.50 mm (1) For all available packages, see the orderable addendum at the end of the datasheet. Simplified Schematic PG PMID Unregulated Load IN BQ2512x GND VINLS SYS SW CD HOST MCU / SYSTEM SDA SCL INT LS / LDO