ZHCSNA1A april   2020  – february 2021 BQ25968

PRODUCTION DATA  

  1.   1
  2. 特性
  3. 应用
  4. 说明
  5. Revision History
  6. 说明(续)
  7. Device Comparison Table
  8. Pin Configuration and Functions
  9. 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 Typical Characteristics
  10. Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1  Charging System
      2. 9.3.2  Battery Charging Profile
      3. 9.3.3  Control State Diagram for System Implementation
      4. 9.3.4  Device Power Up
      5. 9.3.5  Switched Cap Function
        1. 9.3.5.1 Theory of Operation
      6. 9.3.6  Charging Start-Up
      7. 9.3.7  Integrated 16-Bit ADC for Monitoring and Smart Adapter Feedback
      8. 9.3.8  Device Internal Thermal Shutdown, TSBUS, and TSBAT Temperature Monitoring
      9. 9.3.9  INT Pin, STAT, FLAG, and MASK Registers
      10. 9.3.10 CDRVH and CDRVL_ADDRMS Functions
      11. 9.3.11 Parallel Operation Using Master and Slave Modes
    4. 9.4 Device Functional Modes
      1. 9.4.1 Device Modes and Protection Status
        1. 9.4.1.1 Input Overvoltage, Overcurrent, Undercurrent and Short-Circuit Protection
        2. 9.4.1.2 Battery Overvoltage and Overcurrent Protection
        3. 9.4.1.3 Cycle-by-Cycle Current Limit
    5. 9.5 Programming
      1. 9.5.1 F/S Mode Protocol
    6. 9.6 Register Maps
      1. 9.6.1 Customer Registers
  11. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Standalone Application Information (for use with switching charger)
        1. 10.2.1.1 Design Requirements
        2. 10.2.1.2 Detailed Design Procedure
        3. 10.2.1.3 Application Curves
      2. 10.2.2 Parallel BQ25968 for Higher Power Applications
        1. 10.2.2.1 Design Requirements
        2. 10.2.2.2 Detailed Design Procedure
        3. 10.2.2.3 Application Curve
  12. 11Power Supply Recommendations
  13. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  14. 13Device and Documentation Support
    1. 13.1 Device Support
      1. 13.1.1 第三方产品免责声明
      2. 13.1.2 Device Nomenclature
    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 静电放电警告
    7. 13.7 术语表
  15. 14Mechanical, 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

  • 97% 高效功率级可实现 6A 快速充电
  • 正在申请专利的开关电容充电器架构经过优化,可实现 50% 的占空比
    • 输入电压为电池电压的 2 倍(3.5 V 至 4.65 V)
    • 输出电流为输入电流的 2 倍
      (高达 4.5A)
    • 降低电缆的功率损耗
  • 可实现安全运行的集成可编程保护功能
    • 输入过压保护 (BUS_OVP)
    • 具有可调警报的输入过流保护 (BUS_OCP)
    • 使用外部 OVP FET 实现输入过压保护(VAC_OVP 高达 17V)
    • 具有可调警报的电池过压保护 (BAT_OVP)
    • 输出过压保护 (VOUT_OVP)
    • 具有可调警报的输入过流保护 (BUS_OCP)
    • 具有可调警报的 IBAT 过流保护 (BAT_OCP)
    • 开关 MOSFET 逐周期电流限制
    • 电池温度监测
    • 连接器温度监控
  • 用于系统优化的可编程设置
    • 为中断提供了 STAT、FLAG 和 MASK 选项
    • ADC 读数和配置
  • 集成式 16 位有效模数转换器 (ADC)
    • ±0.5% 总线电压
    • ±0.5% VOUT 电压
    • –0.4% 至 0.2% 电池电压(使用差分检测)
    • ±1.5% 电池电流(6A,使用外部 RSENSE
    • ±1% 电池温度
    • ±1% 总线温度
    • ±4°C 裸片温度