SLVSE11A May 2017  – May 2017 TPS2547


  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Pin Configuration and Functions
  6. Specifications
    1. 6.1Absolute Maximum Ratings
    2. 6.2ESD Ratings
    3. 6.3Recommended Operating Conditions
    4. 6.4Thermal Information
    5. 6.5Electrical Characteristics
    6. 6.6Electrical Characteristics: High-Bandwidth Switch
    7. 6.7Electrical Characteristics: Charging Controller
    8. 6.8Typical Characteristics
  7. Parameter Measurement Information
  8. Detailed Description
    1. 8.1Overview
    2. 8.2Functional Block Diagram
    3. 8.3Feature Description
      1. 8.3.1 Standard Downstream Port (SDP) USB 2.0/USB 3.0
      2. 8.3.2 Charging Downstream Port (CDP)
      3. 8.3.3 Dedicated Charging Port (DCP)
        1. BC1.2 and YD/T 1591-2009
        2. Divider Charging Scheme
        3. 1.2-V Charging Scheme
      4. 8.3.4 Wake on USB Feature (Mouse/Keyboard Wake Feature)
        1. 2.0 Background Information
        2. On USB
        3. Slow-Speed and Full-Speed Device Recognition
          1. CTL Pin Timing Requirement After Wake Event and Transition from S3 to S0
      5. 8.3.5 Load Detect
      6. 8.3.6 Power Wake
        1. Power Wake in Notebook System
      7. 8.3.7 Port Power Management (PPM)
        1. of PPM
        2. Details
        3. PPM in a System with Two Charging Ports
      8. 8.3.8 Overcurrent Protection
      9. 8.3.9 FAULT Response
      10. 8.3.10Undervoltage Lockout (UVLO)
      11. 8.3.11Thermal Sense
    4. 8.4Device Functional Modes
      1. 8.4.1DCP Auto Mode
      2. 8.4.2DCP Forced Shorted / DCP Forced Divider1
      3. 8.4.3High-Bandwidth Data Line Switch
      4. 8.4.4Device Truth Table (TT)
  9. Application and Implementation
    1. 9.1Application Information
      1. 9.1.1Output Discharge
    2. 9.2Typical Application
      1. 9.2.1Design Requirements
      2. 9.2.2Detailed Design Procedure
        1. Settings
      3. 9.2.3Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1Layout Guidelines
    2. 11.2Layout Example
  12. 12Device and Documentation Support
    1. 12.1Documentation Support
      1. 12.1.1Related Documentation
    2. 12.2Receiving Notification of Documentation Updates
    3. 12.3Community Resources
    4. 12.4Trademarks
    5. 12.5Electrostatic Discharge Caution
    6. 12.6Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Orderable Information


  • D+/D– CDP/DCP Modes per USB BC 1.2
  • D+/D– Shorted Mode per Chinese Telecommunication Industry Standard YD/T
  • Supports Non-BC1.2 Charging Modes by Automatic Selection:
    • D+/D– Divider Modes 2 V/2.7 V and 2.7 V/2 V
    • D+/D– 1.2-V Mode
  • Supports Sleep-Mode Charging and Mouse/Keyboard Wakeup
  • Load Detection for Power Supply Control in S4/S5 Charging and Port Power Management in All Charge Modes
  • USB 2.0 and 3.0 Compatible
  • Integrated 73-mΩ (Typical) High-Side MOSFET
  • 3-A Programmable ILIMIT Supports 15 Watt Loads
  • Operating Range: 4.5 V to 5.5 V
  • 2 µA/270 µA IQ When Disabled/Enabled
  • Drop-In, BOM Compatible with TPS2543/46
  • 16-Pin WQFN (3.00 mm × 3.00 mm) Package
  • 8-kV ESD Rating on DM/DP Pins
  • UL Recognized File No. E169910 and CB Certified - Pending


  • USB Ports (Host and Hubs)
  • Notebook and Desktop PCs
  • Universal Wall-Charging Adapters


The TPS2547 is a USB charging port controller and power switch with an integrated USB 2.0 high-speed data line (D+/D–) switch. TPS2547 provides the electrical signatures on D+/D– to support charging schemes listed in Feature Description section. TI tests charging of popular mobile phones, tablets, and media devices with the TPS2547 to ensure compatibility with both BC1.2 compliant, and non-BC1.2 compliant devices.

In addition to charging popular devices, the TPS2547 also supports two distinct power management features, namely, power wake and port power management (PPM) through the STATUS pin. Power wake allows for power supply control in S4/S5 charging and PPM supports intelligent port power management in multiport systems. Additionally, system wake up (from S3) with a mouse/keyboard (both low speed and full speed) is fully supported in the TPS2547.

The TPS2547 73-mΩ power-distribution switch is intended for applications where heavy capacitive loads and short-circuits are likely to be encountered. Two programmable current thresholds provide flexibility for setting current limits and load detect thresholds.

Device Information(1)

TPS2547WQFN (16)3.00 mm × 3.00 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Simplified Schematic

TPS2547 typ_app_FP_SLVSE11.gif