ZHCSC37A February   2014  – July 2014

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用范围
  3. 3 说明
  4. 4 简化电路原理图
  5. 5 修订历史记录
  6. 6 Device Comparison Table
  7. 7 Pin Configuration and Functions
  8. 8 Specifications
    1. 8.1 Absolute Maximum Ratings
    2. 8.2 Handling 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  Dynamic Rectifier Control
      2. 9.3.2  Dynamic Power Scaling
      3. 9.3.3  VO_REG and VIREG Calculations
      4. 9.3.4  RILIM Calculations
      5. 9.3.5  Adapter Enable Functionality
      6. 9.3.6  Turning Off the Transmitter
        1. 9.3.6.1 WPC End Power Transfer (EPT)
        2. 9.3.6.2 PMA EOC
      7. 9.3.7  CM_ILIM
      8. 9.3.8  PD_DET and TMEM
      9. 9.3.9  TS, Both WPC and PMA
      10. 9.3.10 I2C Communication
      11. 9.3.11 Input Overvoltage
    4. 9.4 Device Functional Modes
    5. 9.5 Register Maps
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Applications
      1. 10.2.1 Dual Mode Design (WPC and PMA Compliant) Power Supply 5-V Output With 1-A Maximum Current
        1. 10.2.1.1 Design Requirements
        2. 10.2.1.2 Detailed Design Procedure
          1. 10.2.1.2.1  Output Voltage Set Point
          2. 10.2.1.2.2  Output and Rectifier Capacitors
            1. 10.2.1.2.2.1 TMEM
          3. 10.2.1.2.3  Maximum Output Current Set Point
          4. 10.2.1.2.4  TERM Resistor
          5. 10.2.1.2.5  Setting LPRB1 and LPRB2 Resistors
          6. 10.2.1.2.6  I2C
          7. 10.2.1.2.7  Communication Current Limit
          8. 10.2.1.2.8  Receiver Coil
          9. 10.2.1.2.9  Series and Parallel Resonant Capacitors
          10. 10.2.1.2.10 Communication, Boot and Clamp Capacitors
        3. 10.2.1.3 Application Curves
      2. 10.2.2 bq51221 Embedded in System Board
      3. 10.2.3 bq51221 Implemented in Back Cover
  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 Trademarks
    2. 13.2 Electrostatic Discharge Caution
    3. 13.3 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

These devices are intended to be operated within the ranges shown in the Recommended Operating Conditions. Because the system involves a loosely coupled inductor set up, the voltages produced on the receiver are a function of the inductances and the available magnetic field. Ensure that the design in the worst case keeps the voltages within the Absolute Maximum Ratings.
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