USB-IF Certified USB Type-C™ DFP 20V/3A/60W Out, Universal AC Input Reference Design


Design files


This power reference design provides up to 20 V/60 W over USB Type-C from a universal AC input range of 85 to 265 VAC for charger applications. The UCC24636 synchronous rectifier driver allows this design to provide 91% average efficiency. A daughter card provides the PD port control over the USB Type-C output connector. The required companion daughter card for this reference design is PMP11455. This design is USB-IF certified as a captive-cable power brick.

  • 91% average efficiency
  • Standby (no load) power consumption is less than 40 mW
  • Conducted emissions are below Class B levels
  • Compact form factor 60 mm x 60 mm x 25 mm (2.35 in x 2.35 in x 1 in)
Output voltage options PMP11451.1
Vin (Min) (V) 85
Vin (Max) (V) 265
Vout (Nom) (V) 20
Iout (Max) (A) 3
Output Power (W) 60
Isolated/Non-Isolated Isolated
Input Type AC
Topology Flyback- Quasi Resonant
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

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


Detailed schematic diagram for design layout and components


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


Detailed overview of design layout for component placement


Detailed overview of design layout for component placement

TIDCC30.ZIP (566 K)

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


Includes TI products in the design and potential alternatives.

AC/DC & DC/DC controllers (external FET)

UCC24636Synchronous rectifier controller With Ultra-Low Standby current

Data sheet: PDF | HTML
AC/DC & DC/DC controllers (external FET)

UCC28740Constant-Voltage, Constant-Current (CVCC) Flyback controller with Secondary Side Regulation (SSR)

Data sheet: PDF | HTML

CSD17578Q3A30-V, N channel NexFET™ power MOSFET, single SON 3 mm x 3 mm, 9.4 mOhm

Data sheet: PDF | HTML
Shunt voltage references

TL431Adjustable precision shunt regulator

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Test report PMP11451 Test Results (Rev. A) Apr. 14, 2016
Technical article Why move from USB Power Delivery 2.0 to 3.0? PDF | HTML Jul. 14, 2016

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