Automotive USB Charging Port Supply Reference Design with Charging Controller and Cable Compensation

(ACTIVE) PMP9765

Description & Features

Technical Documents

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Description

This reference design includes a power management circuit which is capable of controlling a remote USB charging port in an automotive application environment. The circuit can be supplied directly from the car battery rail. It uses a small and highly efficient step down converter, the TPS62130A-Q1, to regulate the required USB bus voltage for charging with charge currents up to 2.5A.

The USB charging port is controlled and protected by using a USB charging controller, the TPS2549-Q1, this charging controller is also used to monitor the charge current for adjusting the output voltage of the TPS62130A-Q1. This way the voltage drop across the cable connection to the USB port is compensated. In addition, the TPS2549-Q1 generates all required signals to indicate a USB charging port to the equipment connected to the port.

Features

  • Complete power solution for a remote USB charging port
  • Input overvoltage protection for surge voltages up to 40V
  • Supports charge currents up to 2.5A
  • Integrated cable voltage drop compensation for 1% accurate load regulation
  • Up to 92% efficiency at full output power
  • Less than 450-mm² PCB area required for the complete solution


View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




Parametrics
 PMP9765.1
(Output Voltage 1)
Vin (Min) (V)5
Vin (Max) (V)40
Vout (Nom) (V)5
Iout (Max) (A)2.5
Output Power (W)12.5
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologyBuck- Synchronous

TI Devices (2)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TPS2549-Q1  USB Charging Port Controller  USB Power and Charging Port Controllers  Sample & Buy View Design Kits & Evaluation Modules
TPS62130A-Q1  TPS62130A-Q1 3 to 17-V 3-A Automotive Step-Down Converter in 3 × 3 QFN Package  Step-Down (Buck)  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views
PDF 165 19 Jan 2016 32
Design files (4)
Title Abstract Type Size (KB) Date Views
ZIP 102 19 Jan 2016 21
PDF 297 19 Jan 2016 20
PDF 13 19 Jan 2016 26
PDF 40 19 Jan 2016 42


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