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Circuitos integrados USB
Controladores USB-A

TPS2549

ACTIVO

Controlador de puerto de carga USB e interruptor de alimentación de 3 A con compensación de cable

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TPS2549

ACTIVO
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Detalles del producto

Product type Charge port controller Vin (max) (V) 6.5 Vin (min) (V) 4.5 Continuous current (max) (A) 3 Current limit (A) 0.25 to 3.4 Current limit accuracy at 1 A 0.1 Number of switches 1 Enable Active High Rating Catalog Operating temperature range (°C) -40 to 125
Product type Charge port controller Vin (max) (V) 6.5 Vin (min) (V) 4.5 Continuous current (max) (A) 3 Current limit (A) 0.25 to 3.4 Current limit accuracy at 1 A 0.1 Number of switches 1 Enable Active High Rating Catalog Operating temperature range (°C) -40 to 125
WQFN (RTE) 16 9 mm² (3 mm × 3 mm)
  • 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
  • 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

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–.

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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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos TPS2549 USB Charging Port Controller and Power Switch With Cable Compensation datasheet PDF | HTML 27/09/2016
Nota sobre la aplicación TPS254x Eye Diagram Performance Test 19/07/2017
Nota sobre la aplicación TPS2549 CDP-SDP Auto Switch 19/07/2017

Diseño y desarrollo

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Placa de evaluación

TPS2549Q1EVM-729 — Módulo de evaluación para controlador e interruptor automotriz de potencia de puerto de carga USB TP

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 (...)

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El PMP40269 es un diseño de referencia de cargador para automóvil de doble puerto. Tiene un puerto USB Type-C™ y un puerto USB tipo A. El puerto USB Type-C puede proporcionar 5 V y 1.5 A a un dispositivo USB Type-C. El puerto tipo A puede proporcionar 5 V y 2.4 A, también es capaz de compensar los (...)
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