Dual USB Car Charger Reference Design with Port Power Management


Design files


The PMP11670 reference design is a dual channel USB charger for automotive application. It includes a high performance buck converter which provides total 3.5A load current for both channels. The Port Power Management feature of port controllers improves the thermal performance by limiting the max load current for each channel. Both ports support the USB BC1.2 CDP and DCP charging protocols. The built-in IEC protection helps to enhance the system's reliability while the low standby current extends the battery's life.

  • Short-to-VBUS protection on DP_IN and DM_IN
  • IEC ESD protection on DP_IN/DM_IN
  • USB BC1.2 CDP, DCP charging protocols supported
  • High integration converter and protection
  • Port power management (PPM) with 3.5A total current
  • Low standby power consumption
Output voltage options PMP11670.1 PMP11670.2
Vin (Min) (V) 6.5 6.5
Vin (Max) (V) 36 36
Vout (Nom) (V) 5 5
Iout (Max) (A) 2.4 1.1
Output Power (W) 12 5.5
Isolated/Non-Isolated Non-Isolated Non-Isolated
Input Type DC DC
Topology Buck- Synchronous Buck- Synchronous

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.


Test results for the reference design, including efficiency graphs, test prerequisites and more

TIDRM12.PDF (304 K)

Detailed schematic diagram for design layout and components

TIDRM13.PDF (176 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRM14.PDF (89 K)

Detailed overview of design layout for component placement

TIDRM16.ZIP (596 K)

Files used for 3D models or 2D drawings of IC components

TIDCC87.ZIP (306 K)

Design file that contains information on physical board layer of design PCB

TIDRM15.PDF (728 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Buck converters (integrated switch)

LM736053.5V to 36V, 5A Synchronous Step-Down Voltage Converter

Data sheet document-pdfAcrobat PDF open-in-new HTML
USB power switches & charging port controllers

TPS2549-Q1Automotive USB Charge port controller with droop compensation

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Type Title Date
* Test report PMP11670 Test Results May 26, 2016

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