SLVSL35 September   2026 TUSB2514B

ADVANCE INFORMATION  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  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 Electrical Characteristics
    6. 5.6 Timing Requirements
  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 Clock Generation
        1. 6.3.3.1 Crystal Requirements
        2. 6.3.3.2 Input Clock Requirements
      4. 6.3.4 Power-Up and Reset
    4. 6.4 Device Functional Modes
      1. 6.4.1 I2C EEPROM Operation
      2. 6.4.2 SMBus Target Operation
      3. 6.4.3 Port Configuration
  8. 7 Register Maps
    1. 7.1 TUSB2514 Registers
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Application Curves
    3. 8.3 Power Supply Recommendations
      1. 8.3.1 TUSB2514B Power Supply
      2. 8.3.2 Downstream Port Power
      3. 8.3.3 Ground
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
        1. 8.4.1.1 Placement
        2. 8.4.1.2 Package Specific
        3. 8.4.1.3 Differential Pairs
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

6.4 Device Functional Modes

The mode of the device is determined by the state of the SCL_SMBCLK/CFG0 and HS_UP/CFG1 pins upon deassertion of GRST# as shown in Table 6-2.

Table 6-2 Operating Mode Selection
HS_UP/CFG1 SCL_SMBCLK/CFG0 Description
0 0 Pin-strap mode
  • Individual power switching
  • Individual overcurrent sensing
  • HS_UP is asserted high when the upstream USB port is connected at high-speed.
0 1 SMBus target mode
  • Registers are loaded by external SMBus controller
  • The TUSB2514B uses 7-bit target address 0x44
  • HS_UP is asserted high when the upstream USB port is connected at high-speed.
1 0 Bus-powered pin strap mode
  • Bus-powered through VBUS
  • Individual power switching
  • Individual overcurrent sensing
  • HS_UP is asserted low when the upstream USB port is connected at high-speed.
1 1 I2C controller mode
  • All registers are configured by reading external I2C EEPROM
  • External I2C EEPROM 7-bit target address is 0x50
  • HS_UP is asserted low when the upstream USB port is connected at high-speed.