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BQ25120AYFPR Datasheet(PDF) 1 Page - Texas Instruments |
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BQ25120AYFPR Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 67 page  GND HOST SDA SCL INT SW BAT MR BQ2512x MCU / SYSTEM NTC TS LS / LDO <100mA Load IN SYS RESET LSCTRL VINLS Unregulated Load PMID PG IPRETERM ISET ILIM CD IN Copyright © 2016, Texas Instruments Incorporated Product Folder Order Now Technical Documents Tools & Software Support & Community An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. bq25120A SLUSD08 – MAY 2017 bq25120A Low IQ Highly Integrated Battery Charge Management Solution for Wearables and IoT 1 1 Features 1 • Increases System Operation Time Between Charges – Configurable 300-mA Buck Regulator (1.8-V Default) – 700 nA (typical) Iq with Buck Converter Enabled (No Load) – Configurable Load Switch or 100mA LDO Output (Load Switch by Default) – Up to 300-mA Charge Current for Fast Charging – 0.5% Accurate Battery Voltage Regulation (Configurable from 3.6 V to 4.65 V in 10-mV Steps) – Configurable Termination Current Down to 500 µA – Simple Voltage Based Battery Monitor • Highly Integrated Solution with Small Footprint – 2.5 mm x 2.5 mm WCSP Package and 6 External Components for Minimal Solution – Push-Button Wake-Up and Reset with Adjustable Timers – Power Path Management for Powering the System and Charging the Battery – Power Path Management enables <50 nA Ship Mode Battery Quiescent Current for Longest Shelf Life – Battery Charger Operates from 3.4 V – 5.5 VIN (5.5-V OVP / 20-V Tolerant) – Dedicated Pins for Input Current Limit, Charge Current, Termination Current, and Status Output • I2C Communication Control – Charge Voltage and Current – Termination Threshold – Input Current Limit – VINDPM Threshold – Timer Options – Load Switch Control – Controls for Interrupts for Faults and Status – System Output Voltage Adjustment – LDO Output Voltage Adjustment 2 Applications • Smart Watches and other Wearable Devices • Fitness Accessories • Health Monitoring Medical Accessories • Rechargeable Toys 3 Description The bq25120A 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 PACKAGE BODY SIZE (NOM) BQ25120A 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 |
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