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 第三方产品免责声明
    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

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

8.6.2 Battery/ Supply Status Register (READ/WRITE)


Memory location: 01, Reset state: xxxx 0xxx

BIT NAME READ/WRITE FUNCTION
B7 (MSB) INSTAT1 Read Only 00-Normal
01-Supply OVP
10-Weak Source Connected (No Charging)
11- VIN<VUVLO
B6 INSTAT0 Read Only
B5 USBSTAT1 Read Only 00-Normal
01-Supply OVP
01-Weak Source Connected (No Charging)
11- VUSB<VUVLO
B4 USBSTAT0 Read Only
B3 OTG_LOCK Read/Write 0 – No OTG supply present. Use USB input as normal.
1 – OTG supply present. Lockout USB input for charging.
(default 0)
B2 BATSTAT1 Read Only 00-Battery Present and Normal
01-Battery OVP
10-Battery Not Present
11- NA
B1 BATSTAT0 Read Only
B0 (LSB) EN_NOBATOP Read/ Write 0-Normal Operation
1-Enables No Battery Operation when termination is disabled (default 0)
OTG_LOCK Bit (USB Lockout)
The OTG_LOCK bit is used to prevent any charging from USB input regardless of the SUPPLY_SEL bit and IN supply status. For systems using OTG supplies, it is not desirable to charge from an OTG source. Doing so would mean draining the battery by allowing it to effectively charge itself. Write a “1” to OTG_LOCK to lock out the USB input. Write a “0” to OTG_LOCK to return to normal operation. During OTG lock, the USB input is ignored and DRV does not come up. The watchdog timer must be reset while in USB_LOCK to maintain the USB lockout state. This prevents the USB input from being permanently locked out for cases where the host loses I2C communication with OTG_LOCK set (for example, discharged battery from OTG operation). See the Safety Timer and Watchdog Timer section for more details.
EN_NOBATOP (No Battery Operation)
The EN_NOBATOP bit enables no battery operation. When using the BQ2416x without a battery attached, it is recommended to first disable charging, then disable charge termination and finally set this bit to 1. Setting this bit to 1 also disables the reverse boost prevention circuit and the BATOVP circuit. With a battery attached, setting this bit to 1 may be helpful to ensure full battery charging as explained in the reverse battery prevention circuit section. In the event of battery overvoltage (for example, recovery from large SYS load transient requiring supplement), the BATOVP protection circuit turns off the buck converter to allow the battery to discharge through SYS.