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Texas Instruments bq25120 集成式电池充电管理 IC

Texas Instruments bq25120 Integrated Battery Charge Management IC integrates the most common functions for wearable devices and IoT. These functions include 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. This extends light load efficiency down to 10µA load currents. The low quiescent current during operation and shutdown enables maximum battery life. The device supports charge currents from 5mA to 300mA. The input current limit, charge current, buck converter output voltage, LDO output voltage, and other parameters are programmable through the I2C interface.

特性

  • Increases System Operation Time Between Charges
    • Configurable 300mA Buck Regulator (1.8V Default)
    • 700nA (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 3.6V to 4.65V in 10mV Steps)
    • Configurable Termination Current Down to 500µA
    • Simple Voltage Based Battery Monitor
  • Highly Integrated Solution with Small Footprint
    • 2.5mm × 2.5mm 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 <50nA Ship Mode Battery Quiescent Current for Longest Shelf Life
    • Battery Charger Operates from 3.4V - 5.5VIN (5.5V OVP / 20V 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

应用

  • Smart Watches and other Wearable Devices
  • Fitness Accessories
  • Health Monitoring Medical Accessories
  • Rechargeable Toys

Software

Evaluation Module

Texas Instruments bq25120AEVM/bq25122EVM评估模块 (EVM)

非常适合用于可穿戴设备和可听取设备，其功能包括线性充电器和稳压输出。

Learn More关于Texas Instruments bq25120AEVM/bq25122EVM评估模块 (EVM) View Products与Texas Instruments bq25120AEVM/bq25122EVM评估模块 (EVM)相关

视频

Block Diagram

框图 - Texas Instruments bq25120 集成式电池充电管理 IC

TI Reference Design Library

TI参考设计 - Texas Instruments bq25120 集成式电池充电管理 IC

TI Reference Design Library

View Results ( 7 ) Page
物料编号 数据表 输出电压 工作电源电流 系列
BQ25121AYFPT BQ25121AYFPT 数据表 3.6 V 1 mA BQ25121A
BQ25120AYFPR BQ25120AYFPR 数据表 3.6 V to 4.65 V 700 nA BQ25120A
BQ25120AYFPT BQ25120AYFPT 数据表 3.6 V to 4.65 V 700 nA BQ25120A
BQ25121AYFPR BQ25121AYFPR 数据表 3.6 V 1 mA BQ25121A
BQ25122YFPR BQ25122YFPR 数据表 BQ25122
BQ25122YFPT BQ25122YFPT 数据表 3.6 V 400 mA BQ25122
BQ25121YFPT BQ25121YFPT 数据表 2.5 V 400 mA BQ25121
发布日期: 2015-10-01 | 更新日期: 2022-03-11