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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6.3.1 Battery Charging Features

The TUSB4041I-Q1 device provides support for USB battery charging. Battery charging support can be enabled on a per port basis through the REG_6h(batEn[3:0]).

Battery charging support includes both CDP and DCP modes. The DCP mode is compliant with the Chinese Telecommunications Industry Standard YD/T 1591-2009.

In addition to standard DCP mode, the TUSB4041I-Q1 device provides a mode (AUTOMODE), which automatically provides support for DCP devices and devices that support custom charging indication. When in AUTOMODE, the port automatically switches between a divider mode and the DCP mode depending on the portable device connected. The divided mode places a fixed DC voltage on the ports DP and DM signals, which allows some devices to identify the capabilities of the charger. The default divider mode indicates support for up to 10 W. The divider mode can be configured to report a legacy current setting (up to 5 W) through REG_Ah(HiCurAcpModeEn).

The battery charging mode for each port is dependent on the state of Reg_6h(batEn[n]), the status of the VBUS input, and the state of REG_Ah(autoModeEnz) upstream port as identified in Table 6-1.

Table 6-1 TUSB4041I-Q1 Battery Charging Modes
batEn[n]VBUSautoModeEnzBC MODE PORT x
(x = n + 1)
0Don’t careDon’t careDon’t Care
1<4 V0Automode(1)(2)
1DCP(3)(4)
>4 VDon’t careCDP(3)
(1) Auto-mode automatically selects divider-mode or DCP mode.
(2) Divider mode can be configured for legacy current mode through register settings.
(3) Attached USB device is USB battery-charging specification revision 1.2 compliant
(4) Chinese Telecommunications Industry Standard YD/T 1591-2009
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