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Texas Instruments bq25600C单节电池充电器

Texas Instruments bq25600C单节电池充电器是一款高度集成的3.0A开关模式电池充电管理及系统电源路径管理器件。该器件设计用于单节锂离子和锂聚合物电池。bq25600C具有高输入电压快速充电功能和高效率，支持面向各种智能手机、平板电脑和便携式设备的并联充电应用。bq25600C与bq25600有不同的I2C地址，因此，选择作为bq25600主充电器并选择bq25600C作为并联充电器时，仅需单个I2C总线。低阻抗电源路径优化了开关模式运行效率，并缩短了电池充电时间。该器件的输入电压和电流调节以及电池遥感可提供最大充电电源。得益于具有充电和系统设置功能的I2C串行接口，该器件成为真正灵活的解决方案。

The bq25600C has a different I2C address from the bq25600 and thus only a single I2C bus is needed when the bq25600 is selected as a main charger and bq25600C is selected as a parallel charger. The low impedance power path optimizes switch-mode operation efficiency and reduces battery charging time. Its input voltage and current regulation and battery remote sensing deliver maximum charging power to the battery. The I2C serial interface with charging and system settings makes the device a truly flexible solution.

特性

  • Operation as Parallel Charger to Provide Fast Charging in Dual Charger Operation
  • High-Efficiency, 1.5MHz, Synchronous Switch-Mode Buck Charger
    • 92% Charge Efficiency at 2A from 5V Input
    • Optimized for USB Voltage Input (5V)
    • Low Power Pulse Frequency Modulation (PFM) Mode for Light Load Operations
  • Single Input to Support USB Input and High Voltage Adapters
    • Support 3.9V to 13.5V Input Voltage Range With 22V Absolute Maximum Input Voltage Rating
    • Programmable Input Current Limit (100mA to 3.2A With 100mA Resolution) to Support USB 2.0, USB 3.0 Standards and High Voltage Adaptors (IINDPM)
    • Maximum Power Tracking by Input Voltage Limit Up to 5.4V (VINDPM)
    • VINDPM Threshold Automatically Tracks Battery Voltage
  • High Charge Efficiency With 19.5mΩ Charging Current Sensing MOSFET
  • Narrow VDC (NVDC) Power Path Management
    • Instant-On Works with No Battery or Deeply Discharged Battery
    • Ideal Diode Operation in Battery Supplement Mode
  • Flexible Autonomous and I2C Mode for Optimal System Performance
  • High Integration Includes All MOSFETs, Current Sensing and Loop Compensation
  • 17µA Low Battery Leakage Current
  • High Accuracy
    • ±0.5% Charge Voltage Regulation
    • ±5% at 1.5A Charge Current Regulation
    • ±6% at 1.38A Charge Current Regulation
    • ±10% at 0.9A Input Current Regulation
    • Remote Battery Sensing for Fast Charge

应用

  • Smart Phones
  • Tablet

Simplified Schematic

Texas Instruments bq25600C单节电池充电器
发布日期: 2017-10-27 | 更新日期: 2022-07-07