ZHCSAD3B January   2012  – December 2014

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 修订历史记录
  5. 5 说明 （续）
  6. 6 Device Comparison Table
  7. 7 Pin Configuration and Functions
  8. 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 Typical Characteristics
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Device Power Up
        1. 9.3.1.1 Power-On-Reset (POR)
        2. 9.3.1.2 Power Up from Battery without DC Source
          1. 9.3.1.2.1 BATFET Turn Off
          2. 9.3.1.2.2 Shipping Mode
        3. 9.3.1.3 Power Up from DC Source
          1. 9.3.1.3.1 REGN LDO
          2. 9.3.1.3.2 Input Source Qualification
          3. 9.3.1.3.3 Input Current Limit Detection
          4. 9.3.1.3.4 D+/D- Detection Sets Input Current Limit in bq24190
          5. 9.3.1.3.5 PSEL/OTG Pins Set Input Current Limit in bq24192, bq24192I
          6. 9.3.1.3.6 HIZ State wth 100mA USB Host
          7. 9.3.1.3.7 Force Input Current Limit Detection
        4. 9.3.1.4 Converter Power-Up
        5. 9.3.1.5 Boost Mode Operation from Battery
      2. 9.3.2 Power Path Management
        1. 9.3.2.1 Narrow VDC Architecture
        2. 9.3.2.2 Dynamic Power Management
        3. 9.3.2.3 Supplement Mode
      3. 9.3.3 Battery Charging Management
        1. 9.3.3.1 Autonomous Charging Cycle
        2. 9.3.3.2 Battery Charging Profile
        3. 9.3.3.3 Battery Path Impedance IR Compensation
        4. 9.3.3.4 Thermistor Qualification
          1. 9.3.3.4.1 Cold/Hot Temperature Window
        5. 9.3.3.5 Charging Termination
          1. 9.3.3.5.1 Termination when REG02[0] = 1
          2. 9.3.3.5.2 Termination when REG05[6] = 1
        6. 9.3.3.6 Charging Safety Timer
        7. 9.3.3.7 USB Timer when Charging from USB100mA Source
      4. 9.3.4 Status Outputs (PG, STAT, and INT)
        1. 9.3.4.1 Power Good Indicator (PG)
        2. 9.3.4.2 Charging Status Indicator (STAT)
        3. 9.3.4.3 Interrupt to Host (INT)
      5. 9.3.5 Protections
        1. 9.3.5.1 Input Current Limit on ILIM
        2. 9.3.5.2 Thermal Regulation and Thermal Shutdown
        3. 9.3.5.3 Voltage and Current Monitoring in Buck Mode
          1. 9.3.5.3.1 Input Over-Voltage (ACOV)
          2. 9.3.5.3.2 System Over-Voltage Protection (SYSOVP)
        4. 9.3.5.4 Voltage and Current Monitoring in Boost Mode
          1. 9.3.5.4.1 VBUS Over-Voltage Protection
        5. 9.3.5.5 Battery Protection
          1. 9.3.5.5.1 Battery Over-Current Protection (BATOVP)
          2. 9.3.5.5.2 Charging During Battery Short Protection
          3. 9.3.5.5.3 System Over-Current Protection
      6. 9.3.6 Serial Interface
        1. 9.3.6.1 Data Validity
        2. 9.3.6.2 START and STOP Conditions
        3. 9.3.6.3 Byte Format
        4. 9.3.6.4 Acknowledge (ACK) and Not Acknowledge (NACK)
        5. 9.3.6.5 Slave Address and Data Direction Bit
          1. 9.3.6.5.1 Single Read and Write
          2. 9.3.6.5.2 Multi-Read and Multi-Write
    4. 9.4 Device Functional Modes
      1. 9.4.1 Host Mode and Default Mode
        1. 9.4.1.1 Plug in USB100mA Source with Good Battery
        2. 9.4.1.2 USB Timer when Charging from USB 100-mA Source
    5. 9.5 Register Map
      1. 9.5.1 I2C Registers
        1. 9.5.1.1  Input Source Control Register REG00 (bq24190, bq24192 reset = 00110000, or 30; bq24192I reset = 00111000, or 38)
        2. 9.5.1.2  Power-On Configuration Register REG01 (reset = 00011011, or 1B)
        3. 9.5.1.3  Charge Current Control Register REG02 (bq24190, bq24192 reset = 01100000, or 60; bq24192I reset = 00100000, or 20)
        4. 9.5.1.4  Pre-Charge/Termination Current Control Register REG03 (reset = 00010001, or 11)
        5. 9.5.1.5  Charge Voltage Control Register REG04 (bq24190, bq241192 reset = 10110010, or B2; bq24192I reset = 10011010, or 9A)
        6. 9.5.1.6  Charge Termination/Timer Control Register REG05 (reset = 10011010, or 9A)
        7. 9.5.1.7  IR Compensation / Thermal Regulation Control Register REG06 (reset = 00000011, or 03)
        8. 9.5.1.8  Misc Operation Control Register REG07 (reset = 01001011, or 4B)
        9. 9.5.1.9  System Status Register REG08
        10. 9.5.1.10 Fault Register REG09
        11. 9.5.1.11 Vender / Part / Revision Status Register REG0A (bq24190 reset = 00100011, or 23; bq24192 reset = 00101011, or 2B; bq24192I reset = 00001011, or 0B)
  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 Performance Plots
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13器件和文档支持
    1. 13.1 文档支持
      1. 13.1.1 相关文档
    2. 13.2 相关链接
    3. 13.3 商标
    4. 13.4 静电放电警告
    5. 13.5 术语表
  14. 14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

11 Power Supply Recommendations

In order to provide an output voltage on SYS, the bq2419x require a power supply between 3.9 V and 17 V input with at least 100 mA current rating connected to VBUS; or, a single-cell Li-Ion battery with voltage > VBATUVLO connected to BAT. The source current rating needs to be at least 3 A in order for the buck converter of the charger to provide maximum output power to SYS.
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