85 to 265VAC Input 5V@4.8A Dual Port USB Charger Reference Design


Design files


The PMP10885 reference design is capable of charging two devices simultaneously at 2.4A each. The UCC24636 synchronous rectifier controller and CSD18531Q5A FET reduce the rectifier loss and provide high efficiency with a minimal increase in cost.  The TPS2559 provides accurate and independent current limit protection for each port. The TPS2513 communicates with the mobile device under charge to ensure that the charger is accepted by most phone and tablet models. This compact design consumes a volume of only 1.3" x 2.4" x 0.9".

  • High 4-point average efficiency (>85% AC/DC only; >84% end-to-end)
  • Compact size and high power density (8.5W/in^3)
  • Conducted emissions below Class B limits
Output voltage options PMP10885.1
Vin (Min) (V) 85
Vin (Max) (V) 265
Vout (Nom) (V) 5
Iout (Max) (A) 4.8
Output Power (W) 24
Isolated/Non-Isolated Isolated
Input Type AC
Topology Flyback

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.

TIDUBF6.PDF (1159 K)

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


Includes TI products in the design and potential alternatives.

Flyback controllers

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

Data sheet document-pdfAcrobat PDF open-in-new HTML
N-channel MOSFETs

CSD18531Q5A60-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 4.6 mOhm

Data sheet document-pdfAcrobat PDF open-in-new HTML
SR & load share controllers

UCC24636Synchronous rectifier controller With Ultra-Low Standby current

Data sheet document-pdfAcrobat PDF open-in-new HTML
Shunt voltage references

TLVH431A1% low-voltage wide-operating current adjustable precision shunt regulator

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

TPS2513Dual USB Dedicated Charging Port Controllers

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

TPS25591.2-4.7A, adjustable ILIMIT 2.5-6.5V, active-high enable, 13 mOhm power switch

Data sheet document-pdfAcrobat PDF

Technical documentation

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Type Title Date
* Test report PMP10885 Test Results Jan. 21, 2016

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