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Product details

Parameters

Vin (Min) (V) 4.5 Vin (Max) (V) 6.5 Continuous current (Max) (A) 3 Current limit (A) 0.25 to 3.4 Enable Active High Number of switches 1 Rating Catalog open-in-new Find other USB power switches & charging port controllers

Package | Pins | Size

WQFN (RTE) 16 9 mm² 3 x 3 open-in-new Find other USB power switches & charging port controllers

Features

  • 4.5-V to 6.5-V Operating Range
  • 47-mΩ (typical) High-Side MOSFET
  • 3-A Maximum Continuous Output Current
  • ±5% CS Output for Cable Compensation
  • CDP Mode per USB Battery Charging Specification 1.2
  • Automatic DCP Modes Selection:
    • Shorted Mode per BC1.2 and YD/T 1591-2009
    • 2.7-V Divider 3 Mode
    • 1.2-V Mode
  • D+ and D– Client Mode for System Update
  • D+ and D– Short-to-VBUS Protection
  • D+ and D– ±8-kV Contact and ±15-kV Air Discharge ESD Rating (IEC 61000-4-2)
  • UL Recognition and CB Certification Pending
  • –40°C to 125°C Junction Operating Temperature
  • 16-Pin QFN (3-mm × 3-mm) Package
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Description

The TPS2549 device is a USB charging port controller and power switch with a current-sense output that is able to control an upstream supply. This allows it to maintain 5 V at the USB port even with heavy charging currents. This is important in systems with long USB cables where significant voltage drops can occur while fast-charging portable devices.

The TP2549 47-mΩ power switch has two selectable, programmable current limits that support port power management by providing a lower current limit that can be used when adjacent ports are experiencing heavy loads. This is important in systems with multiple ports and an upstream supply unable to provide full current to all ports simultaneously.

The DCP_Auto scheme detects and selects the proper D+ and D– settings to communicate with the attached device, so that it can fast-charge at full current. The integrated CDP detection enables up to 1.5-A fast charging of most portable devices with simultaneous data communication.

The unique client-mode feature allows software updates to client devices, but avoids power conflicts by turning off the internal power switch while keeping the data line connection.

Additionally, the TPS2549 device integrates short-to-VBUS protection for D+ and D– to prevent damage when D+ and/or D– unexpectedly short to VBUS. To save space in the application, the TPS2549 device also integrates ESD protection to pass IEC61000-4-2 without external circuitry on D+ and D–.

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Technical documentation

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Type Title Date
* Datasheet TPS2549 USB Charging Port Controller and Power Switch With Cable Compensation datasheet Sep. 27, 2016
Application notes TPS2549 CDP-SDP Auto Switch Jul. 19, 2017
Application notes TPS254x Eye Diagram Performance Test Jul. 19, 2017
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Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$99.00
Description

TPS2549Q1EVM-729 is a USB charging port controller with an integrated power switch and USB 2.0 high-speed data line (DP/DM) switches. TPS2549Q1EVM-729 provides the electrical signatures on DP_IN and DM_IN to support all current charging schemes. TPS2549Q1EVM-729 incorporates USB cable voltage drop (...)

Features
  • TPS2549Q1 Built in IEC 61000-4-2 Protection on DP_IN and DM_IN pins
  • Linear USB Cable Voltage Droop Compensation
  • TPS2549Q1 is fully AEC Q100 qualified
  • Built in Short to VBUS Protection and Notification on DP_IN and DM_IN pins
  • LM53603AQPWPRQ1 High Performance 2.1MHz Automotive qualified DC/DC converter

Reference designs

REFERENCE DESIGNS Download
USB Type-C™ DFP 5V 1.5A + USB Type-A 5V 2.4A Car Charger Reference Design
PMP40269 — PMP40269 is a dual port car charger reference design. It has a USB Type-C™ port and a USB type-A port. The USB Type-C port can provide 5V 1.5A to USB Type-C device. The type-A port can provide 5V 2.4A, it is also capable of compensating for the effects on voltage droop when a smartphone or (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
WQFN (RTE) 16 View options

Ordering & quality

Support & training

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Videos

Power Tips: USB-C Power Delivery Overview

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Posted: 22-Jan-2016
Duration: 03:55

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