ZHCSJI9A March   2019  – June 2019 BQ25886

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     简化原理图
  4. 4 修订历史记录
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 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 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Device Power-On-Reset
      2. 8.3.2  Device Power Up from Battery without Input Source
      3. 8.3.3  Device Power Up from Input Source
        1. 8.3.3.1 Poor Source Qualification
        2. 8.3.3.2 Input Source Type Detection
          1. 8.3.3.2.1 D+/D– Detection Sets Input Current Limit
        3. 8.3.3.3 Power Up REGN Regulator (LDO)
        4. 8.3.3.4 Converter Power Up
      4. 8.3.4  Input Current Optimizer (ICO)
      5. 8.3.5  Buck Mode Operation from Battery (OTG)
      6. 8.3.6  PowerPath Management
        1. 8.3.6.1 Narrow VDC Architecture
        2. 8.3.6.2 Dynamic Power Management
        3. 8.3.6.3 Supplement Mode
      7. 8.3.7  Battery Charging Management
        1. 8.3.7.1 Autonomous Charging Cycle
        2. 8.3.7.2 Battery Charging Profile
        3. 8.3.7.3 Charging Termination
        4. 8.3.7.4 Thermistor Qualification
          1. 8.3.7.4.1 JEITA Guideline Compliance in Charge Mode
        5. 8.3.7.5 Charging Safety Timer
      8. 8.3.8  Status Outputs
        1. 8.3.8.1 Power Good Indicator (PG)
        2. 8.3.8.2 Charging Status Indicator (STAT)
      9. 8.3.9  Input Current Limit on ILIM Pin
      10. 8.3.10 Voltage and Current Monitoring
        1. 8.3.10.1 Voltage and Current Monitoring in Boost Mode
          1. 8.3.10.1.1 Input Over-Voltage Protection
          2. 8.3.10.1.2 Input Under-Voltage Protection
          3. 8.3.10.1.3 System Over-Voltage Protection
          4. 8.3.10.1.4 System Over-Current Protection
        2. 8.3.10.2 Voltage and Current Monitoring in OTG Buck Mode
          1. 8.3.10.2.1 VBUS Over-voltage Protection
          2. 8.3.10.2.2 VBUS Over-Current Protection
      11. 8.3.11 Thermal Regulation and Thermal Shutdown
        1. 8.3.11.1 Thermal Protection in Boost Mode
        2. 8.3.11.2 Thermal Protection in OTG Buck Mode
      12. 8.3.12 Battery Protection
        1. 8.3.12.1 Battery Over-Voltage Protection (BATOVP)
    4. 8.4 Device Functional Modes
  9. 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 (VBUS / PMID) Capacitor
        3. 9.2.2.3 Output (VSYS) Capacitor
        4. 9.2.2.4 ILIM resistor
        5. 9.2.2.5 ICHGSET resistor
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12器件和文档支持
    1. 12.1 器件支持
      1. 12.1.1 第三方米6体育平台手机版_好二三四免责声明
    2. 12.2 文档支持
      1. 12.2.1 相关文档
    3. 12.3 接收文档更新通知
    4. 12.4 社区资源
    5. 12.5 商标
    6. 12.6 静电放电警告
    7. 12.7 Glossary
  13. 13机械、封装和可订购信息

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

9.2.3 Application Curves

CVBUS = 1 µF, CPMID= 10 µF, CBAT = 10 µF, CSYS = 44 µF, L = DFE252012F-1R0 (1 µH) (unless otherwise specified)
BQ25886 881_Adapter-Power-Up-with-Charge-Enabled.gif
VBUS = 5 V VBAT = 6.0 V ICHG = 1 A
Figure 21. Adapter Power Up with Charge Enabled
BQ25886 886_Charge-Disable.png
VBUS = 5 V VBAT = 7.4 V ICHG = 1 A
Figure 23. Charge Disabled
BQ25886 886_Buck-Mode-(OTG)-Startup.png
VBAT = 7.6 V VBUS = 5.1 V No IBUS load
Figure 25. Buck Mode (OTG) Startup
BQ25886 881_Buck-Mode-(OTG)-PWM-Switching.gif
VBAT = 7.6 V VBUS = 5.1 V IBUS = 1 A
Figure 27. Buck Mode (OTG) PWM Switching
BQ25886 881_Boost-Mode-PWM-Switching.gif
VBUS = 5 V VBAT = 7.6 V ICHG = 1 A
Figure 29. Boost Mode PWM Switching
BQ25886 881_System-Load-Transient-Response.gif
VBUS = 5 V VBAT = 8.4 V Charge disabled
Figure 31. System Load Transient Response
BQ25886 881_IINDPM-Transient-Response.gif
DCP Adapter VBAT = 8.0 V Charge enabled
Figure 33. IINDPM Transient Response
BQ25886 886_Charge-Enable.png
VBUS = 5 V VBAT = 7.4 V ICHG = 1 A
Figure 22. Charge Enable
BQ25886 881_Adapter-Plug-in-with-No-Battery.gif
VBUS = 5 V VBAT = Open Charge enabled
Figure 24. Adapter Plug-in with No Battery
BQ25886 881_Buck-Mode-Startup-After-Adapter-Removal.gif
VBAT = 7.6 V Adapter removed with OTG = HIGH RBUS = 25 Ω
Figure 26. Buck Mode Startup After Adapter Removal
BQ25886 881_Buck-Mode-(OTG)-PFM-Switching.gif
VBAT = 7.6 V VBUS = 5.1 V IBUS = 0 mA
Figure 28. Buck Mode (OTG) PFM Switching
BQ25886 881_Boost-Mode-PFM-Switching.gif
VBUS = 5 V VBAT = 8.4 V Charge disabled
Figure 30. Boost Mode PFM Switching
BQ25886 881_VINDPM-Transient-Response.gif
DCP Adapter VBAT = 8.0 V Charge enabled
Figure 32. VINDPM Transient Response
BQ25886 881_Buck-Mode-(OTG)-Load-Transient-Resposne.gif
VBAT = 7.6 V VBUS = 5.1 V
Figure 34. Buck Mode (OTG) Load Transient Response
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