SLUSB18A JUNE   2012  – August 2016 TPS2511

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Switching Characteristics
    7. 6.7 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Overcurrent Protection
      2. 7.3.2 Current Limit Threshold
      3. 7.3.3 Current-Sensing Report (CS)
      4. 7.3.4 Undervoltage Lockout (UVLO) and Enable (EN)
      5. 7.3.5 Soft Start, Reverse Blocking, and Discharge Output
      6. 7.3.6 Thermal Sense
      7. 7.3.7 VBUS Voltage Drop Compensation
      8. 7.3.8 Divide Mode Selection of 5-W and 10-W USB Chargers
    4. 7.4 Device Functional Modes
      1. 7.4.1 Dedicated Charging Port (DCP)
        1. 7.4.1.1 Short the D+ Line to the D- Line
        2. 7.4.1.2 Divider1 (DCP Applying 2 V on D+ Line and 2.7 V on D- Line) or Divider2 (DCP Applying 2.7 V on D+ Line and 2 V on D- Line)
        3. 7.4.1.3 Applying 1.2 V to the D+ Line and 1.2 V to the D- Line
      2. 7.4.2 DCP Auto-Detect
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Input and Output Capacitance
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Community Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • Supports a USB DCP Shorting D+ Line to D– Line
  • Supports a USB DCP Applying 2 V on D+ Line and 2.7 V on D– Line (or a USB DCP Applying
    2.7 V on D+ Line and 2 V on D– Line)
  • Supports a USB DCP Applying 1.2 V on D+ and D– Lines
  • Automatically Switch D+ and D– Lines Connections for an Attached Device
  • Hiccup Mode for Output Short-Circuit Protection
  • Provides CS Pin for USB Cable Compensation
  • Programmable Current Limit (ILIM_SET Pin)
  • Accurate ±10% Current Limit at 2.3 A (Typical)
  • 70-mΩ (Typical) High-Side MOSFET
  • Compatible With USB 2.0 and 3.0 Power Switch Requirements
  • Operating Range: 4.5 V to 5.5 V
  • Available in 8-Pin MSOP-PowerPAD™ Package

2 Applications

  • Vehicle USB Power Chargers
  • AC-DC Wall Adapter With USB Ports
  • Other USB Chargers

3 Description

The TPS2511 device is a USB-dedicated charging port (DCP) controller and current-limiting power switch. An auto-detect feature monitors USB data line voltage, and automatically provides the correct electrical signatures on the data lines to charge compliant devices among the following dedicated charging schemes:

  1. Divider DCP, required to apply 2.7 V and 2 V on the D+ and D– lines respectively or 2 V and 2.7 V on the D+ and D– lines respectively
  2. BC1.2 DCP, required to short the D+ line to the D– line
  3. 1.2 V on both D+ and D– lines

The TPS2511 is a 70-mΩ power-distribution switch intended for applications where heavy capacitive loads and short circuits are likely to be encountered. This device also provides hiccup mode when the output (OUT) voltage is less than 3.8 V (typical) or when an overtemperature protection occurs during an overload condition. Accurate and programmable current limit provides flexibility and convenience for applications. The TPS2511 provides a CS pin for USB cable resistance compensation and an EN pin to control the device turnon and turnoff.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPS2511 MSOP-PowerPAD (8) 3.00 mm × 3.00 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Simplified Schematic

TPS2511 v12095_lusb18.gif