PMP9765 Reference Design

Texas Instruments

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


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.

  • Complete power solution for a remote USB charging portInput overvoltage protection for surge voltages up to 40VSupports charge currents up to 2.5AIntegrated cable voltage drop compensation for 1% accurate load regulationUp to 92% efficiency at full output powerLess than 450-mm² PCB area required for the complete solution
Product Categories
  • Power management

Bill Of Materials

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Test Data

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Other Documents

Title Updated Type Size (KB)
PMP9765 Gerber 19 Jan 2016 ZIP 102
PMP9765 PCB 19 Jan 2016 PDF 297
PMP9765 BOM 19 Jan 2016 PDF 13
PMP9765 Schematic 19 Jan 2016 PDF 40