ZHCSJZ6D June   2019  – December 2021 BQ25618 , BQ25619

PRODUCTION DATA  

  1. 特性
  2. 应用
  3. 说明
  4. Revision History
  5. 说明(续)
  6. Pin Configuration and Functions
  7. Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Thermal Information
    6. 7.6 Electrical Characteristics
    7. 7.7 Timing Requirements
    8. 7.8 Typical Characteristics
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Power-On-Reset (POR)
      2. 8.3.2  Device Power Up From Battery Without Input Source
      3. 8.3.3  Power Up From Input Source
        1. 8.3.3.1 Power Up REGN LDO
        2. 8.3.3.2 Poor Source Qualification
        3. 8.3.3.3 Input Source Type Detection (IINDPM Threshold)
          1. 8.3.3.3.1 PSEL Pins Sets Input Current Limit
        4. 8.3.3.4 Input Voltage Limit Threshold Setting (VINDPM Threshold)
        5. 8.3.3.5 Power Up Converter in Buck Mode
        6. 8.3.3.6 HIZ Mode with Adapter Present
      4. 8.3.4  Boost Mode Operation From Battery
      5. 8.3.5  Power Path Management
        1. 8.3.5.1 Narrow VDC Architecture
        2. 8.3.5.2 Dynamic Power Management
        3. 8.3.5.3 Supplement Mode
      6. 8.3.6  Battery Charging Management
        1. 8.3.6.1 Autonomous Charging Cycle
        2. 8.3.6.2 Battery Charging Profile
        3. 8.3.6.3 Charging Termination
        4. 8.3.6.4 Thermistor Qualification
          1. 8.3.6.4.1 JEITA Guideline Compliance During Charging Mode
          2. 8.3.6.4.2 Boost Mode Thermistor Monitor During Battery Discharge Mode
        5. 8.3.6.5 Charging Safety Timer
      7. 8.3.7  Ship Mode and QON Pin
        1. 8.3.7.1 BATFET Disable (Enter Ship Mode)
        2. 8.3.7.2 BATFET Enable (Exit Ship Mode)
        3. 8.3.7.3 BATFET Full System Reset
      8. 8.3.8  Status Outputs (STAT, INT , PMID_GOOD)
        1. 8.3.8.1 Power Good Indicator (PG_STAT Bit)
        2. 8.3.8.2 Charging Status Indicator (STAT)
        3. 8.3.8.3 Interrupt to Host (INT)
        4. 8.3.8.4 PMID Voltage Indicator (PMID_GOOD)
      9. 8.3.9  Protections
        1. 8.3.9.1 Voltage and Current Monitoring in Buck Mode
          1. 8.3.9.1.1 Input Overvoltage Protection (ACOV)
          2. 8.3.9.1.2 System Overvoltage Protection (SYSOVP)
        2. 8.3.9.2 Voltage and Current Monitoring in Boost Mode
          1. 8.3.9.2.1 Boost Mode Overvoltage Protection
          2. 8.3.9.2.2 PMID Overcurrent Protection
        3. 8.3.9.3 Thermal Regulation and Thermal Shutdown
          1. 8.3.9.3.1 Thermal Protection in Buck Mode
          2. 8.3.9.3.2 Thermal Protection in Boost Mode
        4. 8.3.9.4 Battery Protection
          1. 8.3.9.4.1 Battery Overvoltage Protection (BATOVP)
          2. 8.3.9.4.2 Battery Overdischarge Protection
          3. 8.3.9.4.3 System Overcurrent Protection
      10. 8.3.10 Serial Interface
        1. 8.3.10.1 Data Validity
        2. 8.3.10.2 START and STOP Conditions
        3. 8.3.10.3 Byte Format
        4. 8.3.10.4 Acknowledge (ACK) and Not Acknowledge (NACK)
        5. 8.3.10.5 Slave Address and Data Direction Bit
        6. 8.3.10.6 Single Read and Write
        7. 8.3.10.7 Multi-Read and Multi-Write
    4. 8.4 Device Functional Modes
      1. 8.4.1 Host Mode and Default Mode
    5. 8.5 Register Maps
  9. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Inductor Selection
        2. 9.2.2.2 Input Capacitor and Resistor
        3. 9.2.2.3 Output Capacitor
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 第三方产品免责声明
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 接收文档更新通知
    4. 12.4 支持资源
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 术语表
  13. 13Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

特性

  • 单芯片解决方案,可以通过适配器或电池为可穿戴附件充电
  • 高效 1.5MHz 同步开关模式降压充电器
    • 0.5A 时充电效率为 95.5%,1A 时充电效率为 94.5%
    • ±0.5% 充电电压调节(10mV 阶跃)
    • 充电电压、电流和温度阈值的 I2C 可编程 JEITA 曲线
    • 高精度低终止电流 20mA±10mA
    • 2.5 x 2.0 x 1.0mm3 的小电感器尺寸
  • 输出范围为 4.6V 至 5.15V 的升压模式
    • 在 1A 输出下具有 94% 的升压效率
    • 集成控制功能,可实现充电模式与升压模式间的切换
    • PMID_GOOD 引脚控制外部 PMOS FET,用于针对故障情况提供保护
  • 单个输入,支持 USB 输入以及高电压适配器或无线电源
    • 支持 4V 至 13.5V 输入电压范围,绝对最大输入额定值为 22V
    • 通过 I2C(100mA 至 3.2A,100mA/阶跃) 实现可编程输入电流限制 (IINDPM)
    • 通过高达 5.4V 的输入电压限制 (VINDPM) 进行最大功率跟踪
    • 通过 VINDPM 阈值自动跟踪电池电压
  • 窄 VDC (NVDC) 电源路径管理
    • 无需电池或使用深度放电的电池即可使系统瞬时启动
  • 灵活的 I2C 配置和自主充电,可实现出色的系统性能
  • 高集成度包括所有 MOSFET、电流感应和环路补偿
  • 低 RDSON 19.5mΩ BATFET,可更大程度地降低充电损耗和延长电池运行时间
    • 提供用于运输模式的 BATFET 控制,以及使用和不使用适配器的完全系统复位功能
  • 运输模式下具有 7µA 低电池泄漏电流
  • 在系统待机时具有 9.5µA 的低电池泄漏电流
  • 高精度电池充电曲线
    • ±6% 充电电流调节
    • ±7.5% 输入电流调节
    • 远程电池检测,可更快地进行充电
    • 用于电池完全充电的可编程充电完成计时器
  • 安全相关认证:
    • 经 IEC 62368-1 CB 认证