ZHCSMZ9A September   2022  – October 2022 BQ25620 , BQ25622

PRODUCTION DATA  

  1. 特性
  2. 应用
  3. 说明
  4. Revision History
  5. 说明(续)
  6. Device Comparison
  7. Pin Configuration and Functions
  8. Specifications
    1. 8.1 Absolute Maximum Ratings
    2. 8.2 ESD Ratings
    3. 8.3 Recommended Operating Conditions
    4. 8.4 Thermal Information
    5. 8.5 Electrical Characteristics
    6. 8.6 Timing Requirements
    7. 8.7 Typical Characteristics
  9. Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Power-On-Reset (POR)
      2. 9.3.2 Device Power Up from Battery
      3. 9.3.3 Device Power Up from Input Source
        1. 9.3.3.1 REGN LDO Power Up
        2. 9.3.3.2 Poor Source Qualification
        3. 9.3.3.3 D+/D– Detection Sets Input Current Limit (BQ25620 Only)
        4. 9.3.3.4 ILIM Pin (BQ25622 Only)
        5. 9.3.3.5 Input Voltage Limit Threshold Setting (VINDPM Threshold)
        6. 9.3.3.6 Converter Power-Up
      4. 9.3.4 Power Path Management
        1. 9.3.4.1 Narrow VDC Architecture
        2. 9.3.4.2 Dynamic Power Management
        3. 9.3.4.3 High Impedance Mode
      5. 9.3.5 Battery Charging Management
        1. 9.3.5.1 Autonomous Charging Cycle
        2. 9.3.5.2 Battery Charging Profile
        3. 9.3.5.3 Charging Termination
        4. 9.3.5.4 Thermistor Qualification
          1. 9.3.5.4.1 Advanced Temperature Profile in Charge Mode
          2. 9.3.5.4.2 TS Pin Thermistor Configuration
          3. 9.3.5.4.3 Cold/Hot Temperature Window in OTG Mode
          4. 9.3.5.4.4 JEITA Charge Rate Scaling
          5. 9.3.5.4.5 TS_BIAS Pin (BQ25622 Only)
        5. 9.3.5.5 Charging Safety Timers
      6. 9.3.6 USB On-The-Go (OTG)
        1. 9.3.6.1 Boost OTG Mode
      7. 9.3.7 Integrated 12-Bit ADC for Monitoring
      8. 9.3.8 Status Outputs ( PG, STAT, INT)
        1. 9.3.8.1 PG Pin Power Good Indicator
        2. 9.3.8.2 Charging Status Indicator (STAT)
        3. 9.3.8.3 Interrupt to Host ( INT)
      9. 9.3.9 BATFET Control
        1. 9.3.9.1 Shutdown Mode
        2. 9.3.9.2 Ship Mode
        3. 9.3.9.3 System Power Reset
    4. 9.4 Device Functional Modes
      1. 9.4.1 Host Mode and Default Mode
      2. 9.4.2 Register Bit Reset
    5. 9.5 Programming
      1. 9.5.1 Serial Interface
        1. 9.5.1.1 Data Validity
        2. 9.5.1.2 START and STOP Conditions
        3. 9.5.1.3 Byte Format
        4. 9.5.1.4 Acknowledge (ACK) and Not Acknowledge (NACK)
        5. 9.5.1.5 Target Address and Data Direction Bit
        6. 9.5.1.6 Single Write and Read
        7. 9.5.1.7 Multi-Write and Multi-Read
    6. 9.6 Register Maps
      1. 9.6.1 Register Programming
      2. 9.6.2 BQ25620 Registers
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 Inductor Selection
        2. 10.2.2.2 Input Capacitor
        3. 10.2.2.3 Output Capacitor
      3. 10.2.3 Application Curves
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Device Support
      1. 13.1.1 第三方产品免责声明
    2. 13.2 Documentation Support
      1. 13.2.1 Related Documentation
    3. 13.3 接收文档更新通知
    4. 13.4 支持资源
    5. 13.5 Trademarks
    6. 13.6 Electrostatic Discharge Caution
    7. 13.7 术语表
  14. 14Mechanical, Packaging, and Orderable Information

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机械数据 (封装 | 引脚)
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订购信息

特性

  • 适用于单节电池的高效 1.5MHz 同步开关模式降压充电器
    • 输入电压为 5V 时,输出电流低至 25mA,效率大于 90%
    • 充电终止范围为 10mA 至 620mA,步长为 10mA
    • 灵活的 JEITA 曲线,可在过热条件下实现安全充电
  • BATFET 控制,支持关断、运输模式和完全系统复位
    • 纯电池模式下静态电流 1.5µA
    • 运输模式下电池漏电流为 0.15µA
    • 关断模式下电池漏电流为 0.1µA
  • 支持 USB On-The-Go (OTG)
    • 升压模式运行支持 3.84V 至 9.6V 输出
    • 对于 5V VBUS,升压效率大于 90%,OTG 电流低至 100mA
  • 支持宽输入源
    • 3.9V 至 18V 宽输入工作电压范围,绝对最大输入电压为 26V
    • 通过输入电压调节 (VINDPM) 和输入电流调节 (IINDPM) 更大限度地提高电源功率
    • VINDPM 阈值自动跟踪电池电压
  • 使用 15mΩ BATFET 实现高效电池运行
  • 窄 VDC (NVDC) 电源路径管理
    • 系统在电池耗尽或无电池的情况下可瞬时启动
    • 适配器满载时,电池可为系统补充电量
  • 灵活的自主或 I2C 控制模式
  • 用于电压、电流和温度监测的集成 12 位 ADC
  • 高精度
    • 充电电压调节范围为 ±0.5%
    • 充电电流调节范围为 ±5%
    • 输入电流调节范围为 ±5%
  • 安全
    • 热调节和热关断
    • 输入、系统和电池过压保护
    • 电池和转换器过流保护
    • 充电安全计时器