ZHCSHG3B november   2017  – july 2020 TPS254900A-Q1

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Revision History
  6. 5 Pin Configuration and Functions
    1.     7
  7. 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
  8. 7 Parameter Measurement Information
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  FAULT Response
      2. 8.3.2  Cable Compensation
        1. 8.3.2.1 Design Procedure
      3. 8.3.3  D+ and D– Protection
      4. 8.3.4  VBUS OVP Protection
      5. 8.3.5  Output and D+ or D– Discharge
      6. 8.3.6  Port Power Management (PPM)
        1. 8.3.6.1 Benefits of PPM
        2. 8.3.6.2 PPM Details
        3. 8.3.6.3 Implementing PPM in a System With Two Charging Ports (CDP and SDP1)
      7. 8.3.7  Overcurrent Protection
      8. 8.3.8  Undervoltage Lockout
      9. 8.3.9  Thermal Sensing
      10. 8.3.10 Current-Limit Setting
    4. 8.4 Device Functional Modes
      1. 8.4.1 Device Truth Table (TT)
      2. 8.4.2 USB BC1.2 Specification Overview
      3. 8.4.3 Standard Downstream Port (SDP) Mode — USB 2.0 and USB 3.0
      4. 8.4.4 Charging Downstream Port (CDP) Mode
      5. 8.4.5 Client Mode
      6. 8.4.6 High-Bandwidth Data-Line Switch
  10. 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 Input Capacitance
        2. 9.2.2.2 Output Capacitance
        3. 9.2.2.3 BIAS Capacitance
        4. 9.2.2.4 Output and BIAS TVS
      3. 9.2.3 Application Curves
  11. 10Power Supply Recommendations
  12. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  13. 12Device and Documentation Support
    1. 12.1 Device Support
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 接收文档更新通知
    4. 12.4 支持资源
    5. 12.5 Trademarks
    6. 12.6 静电放电警告
    7. 12.7 术语表
  14. 13Mechanical, Packaging, and Orderable Information

封装选项

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机械数据 (封装 | 引脚)
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散热焊盘机械数据 (封装 | 引脚)
订购信息

9.1 Application Information

The TPS254900A-Q1 device is a USB charging-port controller and power switch with cable compensation and short-to-battery protection for VBUS, D+, and D–. The device is typically used for automotive USB port protection and as a USB charging controller. The following design procedure can be used to select components for the TPS254900A-Q1 device. This section presents a simplified discussion of how to choose external components for VBUS, D+, and D– short-to-battery protection. For cable-compensation design information, see the data sheet (SLUSCE3) for the TPS2549-Q1 device, which has features and design considerations very similar to those of the TPS254900A-Q1 device.