ZHCSDY5C July   2015  – July 2024 TUSB4041I-Q1

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 3.3-V I/O Electrical Characteristics
    6. 5.6 Power-Up Timing Requirements
    7. 5.7 Hub Input Supply Current
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Battery Charging Features
      2. 6.3.2 USB Power Management
      3. 6.3.3 One-Time Programmable Configuration
      4. 6.3.4 Clock Generation
      5. 6.3.5 Crystal Requirements
      6. 6.3.6 Input Clock Requirements
      7. 6.3.7 Power-Up and Reset
    4. 6.4 Device Functional Modes
      1. 6.4.1 External Configuration Interface
      2. 6.4.2 I2C EEPROM Operation
      3. 6.4.3 SMBus Target Operation
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Upstream Port Implementation
        2. 7.2.2.2 Downstream Port 1 Implementation
        3. 7.2.2.3 Downstream Port 2 Implementation
        4. 7.2.2.4 Downstream Port 3 Implementation
        5. 7.2.2.5 Downstream Port 4 Implementation
        6. 7.2.2.6 VBUS Power Switch Implementation
        7. 7.2.2.7 Clock, Reset, and Miscellaneous
        8. 7.2.2.8 TUSB4041I-Q1 Power Implementation
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
      1. 7.3.1 TUSB4041I-Q1 Power Supply
      2. 7.3.2 Downstream Port Power
      3. 7.3.3 Ground
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
        1. 7.4.1.1 Placement
        2. 7.4.1.2 Package Specific
        3. 7.4.1.3 Differential Pairs
      2. 7.4.2 Layout Example
  9. 8 Register Maps
    1. 8.1  Configuration Registers
    2. 8.2  ROM Signature Register
    3. 8.3  Vendor ID LSB Register
    4. 8.4  Vendor ID MSB Register
    5. 8.5  Product ID LSB Register
    6. 8.6  Product ID MSB Register
    7. 8.7  Device Configuration Register
    8. 8.8  Battery Charging Support Register
    9. 8.9  Device Removable Configuration Register
    10. 8.10 Port Used Configuration Register
    11. 8.11 Device Configuration Register 2
    12. 8.12 USB 2.0 Port Polarity Control Register
    13. 8.13 UUID Byte N Register
    14. 8.14 Language ID LSB Register
    15. 8.15 Language ID MSB Register
    16. 8.16 Serial Number String Length Register
    17. 8.17 Manufacturer String Length Register
    18. 8.18 Product String Length Register
    19. 8.19 Serial Number String Registers
    20. 8.20 Manufacturer String Registers
    21. 8.21 Product String Byte N Register
    22. 8.22 Additional Feature Configuration Register
    23. 8.23 Device Status and Command Register
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 接收文档更新通知
    3. 9.3 支持资源
    4. 9.4 Trademarks
    5. 9.5 静电放电警告
    6. 9.6 术语表
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

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7.3.1 TUSB4041I-Q1 Power Supply

Implement VDD as a single power plane, as well as VDD33.

  • The VDD pins of the TUSB4041I-Q1 supply 1.1-V (nominal) power to the core of the TUSB4041I-Q1 device. This power rail can be isolated from all other power rails by a ferrite bead to reduce noise.
  • The DC resistance of the ferrite bead on the core power rail can affect the voltage provided to the device because of the high current draw on the power rail. The user may need to adjust the output of the core voltage regulator to account for this, or select a ferrite bead with low DC resistance (less than 0.05 Ω).
  • The VDD33 pins of the TUSB4041I-Q1 device supply 3.3-V power rail to the I/O of the TUSB4041I-Q1 device. This power rail can be isolated from all other power rails by a ferrite bead to reduce noise.
  • All power rails require a 10-µF capacitor or 1-µF capacitors for stability and noise immunity. These bulk capacitors can be placed anywhere on the power rail. Place the smaller decoupling capacitors as close to the TUSB4041I-Q1 power pins as possible with an optimal grouping of two capacitors of differing values per pin.
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