ZHCS384H November   2011  – July 2022 BQ24160 , BQ24160A , BQ24161 , BQ24161B , BQ24163 , BQ24168

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 Handling Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 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  Charge Mode Operation
        1. 8.3.1.1 Charge Profile
        2. 8.3.1.2 PWM Controller in Charge Mode
      2. 8.3.2  Battery Charging Process
      3. 8.3.3  Battery Detection
      4. 8.3.4  Dynamic Power Path Management (DPPM)
      5. 8.3.5  Input Source Connected
      6. 8.3.6  Battery Only Connected
      7. 8.3.7  Battery Discharge FET (BGATE)
      8. 8.3.8  DEFAULT Mode
      9. 8.3.9  Safety Timer and Watchdog Timer (BQ24160/BQ24161/BQ24161B/BQ24163 only)
      10. 8.3.10 D+, D– Based Adapter Detection for the USB Input (D+, D–, BQ24160/0A/3)
      11. 8.3.11 USB Input Current Limit Selector Input (PSEL, BQ24161/161B/168 only)
      12. 8.3.12 Hardware Chip Disable Input (CD)
      13. 8.3.13 LDO Output (DRV)
      14. 8.3.14 External NTC Monitoring (TS)
      15. 8.3.15 Thermal Regulation and Protection
      16. 8.3.16 Input Voltage Protection in Charge Mode
        1. 8.3.16.1 Sleep Mode
        2. 8.3.16.2 Input Voltage Based DPM
        3. 8.3.16.3 Bad Source Detection
        4. 8.3.16.4 Input Overvoltage Protection
        5. 8.3.16.5 Reverse Boost (Boost Back) Prevention Circuit
      17. 8.3.17 Charge Status Outputs (STAT, INT)
      18. 8.3.18 Good Battery Monitor
    4. 8.4 Device Functional Modes
    5. 8.5 Programming
      1. 8.5.1 Serial Interface Description
        1. 8.5.1.1 F/S Mode Protocol
    6. 8.6 Register Maps
      1. 8.6.1 Status/Control Register (READ/WRITE)
      2. 8.6.2 Battery/ Supply Status Register (READ/WRITE)
      3. 8.6.3 Control Register (READ/WRITE)
      4. 8.6.4 Control/Battery Voltage Register (READ/WRITE)
      5. 8.6.5 Vender/Part/Revision Register (READ only)
      6. 8.6.6 Battery Termination/Fast Charge Current Register (READ/WRITE)
      7. 8.6.7 VIN-DPM Voltage/ DPPM Status Register
      8. 8.6.8 Safety Timer/ NTC Monitor Register (READ/WRITE)
  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 Output Inductor and Capacitor Selection Guidelines
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
    1. 10.1 Requirements for SYS Output
    2. 10.2 Requirements for Charging
  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 第三方米6体育平台手机版_好二三四免责声明
    2. 12.2 接收文档更新通知
    3. 12.3 支持资源
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 术语表
      1.      Mechanical, Packaging, and Orderable Information

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8.3.7 Battery Discharge FET (BGATE)

The BQ2416xx contains a MOSFET driver to drive the gate of an external discharge FET between the battery and the system output. This external FET provides a low impedance path when supplying the system from the battery. Connect BGATE to the gate of the external discharge MOSFET. BGATE is on under the following conditions:

  1. No input supply connected.
  2. HZ_MODE bit = 1
  3. CD pin = 1
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