SLLSEK3E July   2015  – September 2017 TUSB4041I

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Description (continued)
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 3.3-V I/O Electrical Characteristics
    6. 7.6 Power-Up Timing Requirements
    7. 7.7 Hub Input Supply Current
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Battery Charging Features
      2. 8.3.2 USB Power Management
      3. 8.3.3 One-Time Programmable Configuration
      4. 8.3.4 Clock Generation
      5. 8.3.5 Crystal Requirements
      6. 8.3.6 Input Clock Requirements
      7. 8.3.7 Power-Up and Reset
    4. 8.4 Device Functional Modes
      1. 8.4.1 External Configuration Interface
      2. 8.4.2 I2C EEPROM Operation
      3. 8.4.3 SMBus Slave Operation
    5. 8.5 Register Maps
      1. 8.5.1  Configuration Registers
      2. 8.5.2  ROM Signature Register
      3. 8.5.3  Vendor ID LSB Register
      4. 8.5.4  Vendor ID MSB Register
      5. 8.5.5  Product ID LSB Register
      6. 8.5.6  Product ID MSB Register
      7. 8.5.7  Device Configuration Register
      8. 8.5.8  Battery Charging Support Register
      9. 8.5.9  Device Removable Configuration Register
      10. 8.5.10 Port Used Configuration Register
      11. 8.5.11 Device Configuration Register 2
      12. 8.5.12 USB 2.0 Port Polarity Control Register
      13. 8.5.13 UUID Byte N Register
      14. 8.5.14 Language ID LSB Register
      15. 8.5.15 Language ID MSB Register
      16. 8.5.16 Serial Number String Length Register
      17. 8.5.17 Manufacturer String Length Register
      18. 8.5.18 Product String Length Register
      19. 8.5.19 Serial Number String Registers
      20. 8.5.20 Manufacturer String Registers
      21. 8.5.21 Product String Byte N Register
      22. 8.5.22 Additional Feature Configuration Register
      23. 8.5.23 Device Status and Command Register
  9. 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 Upstream Port Implementation
        2. 9.2.2.2 Downstream Port 1 Implementation
        3. 9.2.2.3 Downstream Port 2 Implementation
        4. 9.2.2.4 Downstream Port 3 Implementation
        5. 9.2.2.5 Downstream Port 4 Implementation
        6. 9.2.2.6 VBUS Power Switch Implementation
        7. 9.2.2.7 Clock, Reset, and Miscellaneous
        8. 9.2.2.8 TUSB4041I Power Implementation
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
    1. 10.1 TUSB4041I Power Supply
    2. 10.2 Downstream Port Power
    3. 10.3 Ground
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Placement
      2. 11.1.2 Package Specific
      3. 11.1.3 Differential Pairs
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Community Resource
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

5 Description (continued)

The TUSB4041I device supports per-port or ganged power switching and overcurrent protection. The device also supports battery charging applications.

An individually port-power-controlled hub switches power on or off to each downstream port as requested by the USB host. Also when an individually port-power-controlled hub senses an overcurrent event, only power to the affected downstream port is switched off.

A ganged hub switches on power to all of the downstream ports when power is required to be on for any port. The power to the downstream ports is not switched off unless all ports are in a state that allows power to be removed. Also, when a ganged hub senses an overcurrent event, power to all downstream ports are switched off.

The TUSB4041I device downstream ports provide support for battery charging applications by providing USB battery charging downstream-port (CDP) handshaking support. The device also supports a dedicated charging-port (DCP) mode when the upstream port is not connected. The DCP mode is compliant with the USB battery charging specification and Chinese Telecommunications Industry Standard YD/T 1591-2009. Also, an automatic mode provides transparent support for BC devices and devices supporting divider-mode charging solutions when the upstream port unconnected.

The TUSB4041I device provides pin-strap configuration for some features including battery charging support, and also provides customization though OTP ROM, I2C EEPROM, or through an I2C and SMBus slave interface for PID, VID, and custom port and phy configurations. Custom string support is also available when using an I2C EEPROM or the I2C and SMBus slave interface.

The device is available in a 64-pin PAP package and is offered in a industrial version for operation over the temperature range of –40°C to 85°C.