ZHCSH16C November   2017  – August 2019 TPS25820 , TPS25821

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      简化原理图
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Switching Characteristics
    7. 6.7 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
      1. 7.1.1 USB Type C Basic
      2. 7.1.2 Configuration Channel
      3. 7.1.3 Detecting a Connection
    2. 7.2 Functional Block Diagrams
    3. 7.3 Feature Description
      1. 7.3.1 Configuration Channel Pins CC1 and CC2
      2. 7.3.2 Current Capability Advertisement and VBUS Overload Protection
      3. 7.3.3 FAULT Response
      4. 7.3.4 Thermal Shutdown
      5. 7.3.5 REF
      6. 7.3.6 Plug Polarity Detection
      7. 7.3.7 Sink Attachment Indicator
      8. 7.3.8 Device Enable Control
      9. 7.3.9 Undervoltage Lockout (UVLO)
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Type-C Source Port Implementation without BC 1.2 Support
        1. 8.2.1.1 Design Requirements
          1. 8.2.1.1.1 Input and Output Capacitance Considerations
          2. 8.2.1.1.2 System Level ESD Protection
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Type -C Source Port Implementation with BC 1.2 (DCP Mode) Support
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
        3. 8.2.2.3 Application Curves
      3. 8.2.3 Implementing a USB 3.1 Type-C Charging Port with the TPS25820
        1. 8.2.3.1 Design Requirements
        2. 8.2.3.2 Detailed Design Procedure
        3. 8.2.3.3 Application Curves
      4. 8.2.4 Implementing TPS25821 in USB Car Chargers
        1. 8.2.4.1 Design Requirements
        2. 8.2.4.2 Detailed Design Procedure
        3. 8.2.4.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11器件和文档支持
    1. 11.1 器件支持
      1. 11.1.1 第三方米6体育平台手机版_好二三四免责声明
    2. 11.2 文档支持
      1. 11.2.1 相关文档
    3. 11.3 相关链接
    4. 11.4 接收文档更新通知
    5. 11.5 社区资源
    6. 11.6 商标
    7. 11.7 静电放电警告
    8. 11.8 Glossary
  12. 12机械、封装和可订购信息

8.1 Application Information

The TPS25820/21 are Type-C source controllers. The TPS25820 supports all Type-C DFP required functions to support a USB 3.x port and the TPS25821 supports all required functions for a USB 2.0 DFP. The TPS25820/21 only applies power to VBUS when it detects a sink is attached and removes power when it detects the sink is detached. The device exposes its identity via its CC pin advertising its current capability based on the CHG pin setting. The TPS25820/21 also limits its advertised current internally and provides robust protection against faults on the system VBUS power rail.

After a connection is established by the TPS25820/21, the TPS25820/21 device is capable of providing VCONN to power circuits in the cable plug on the CC pin that is not connected to the CC wire in the cable. VCONN is internally current limited. The TPS25820/21 do not support Type-C optional accessory modes (Ra/Ra and Rd/Rd in Table 2).

The following design procedure can be used to implement a full featured Type-C source.
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