High Efficiency and Low Total Harmonic Distortion 200W AC-DC LED Driver Reference Design


Design files


The PMP20612 reference design is a high efficiency AC-DC LED driver reference design with very low total harmonic distortion (THD). This design uses CCM PFC with the UCC28180 controller to provide power factor correction (PFC) functionality from 108VAC to 305VAC input. A two-switch Flyback converter with the UCC28740 controller is used to provide 200V/1A constant current (CC)/ constant voltage (CV). The voltage sensing and current sensing circuit at the output side with the TL431 and INA180 allow an external circuit to process a dimming function. As a result this design achieves 92.9% peak efficiency at 230VAC/50Hz input. At 277VAC, the board also has less than 20% THD with 20% load.

  • 108VAC to 305VAC 50/60/Hz input to 100V - 200V, 1A output
  • CCM PFC followed by a two-switch flyback
  • Overall efficiency achieves 92.9% peak
  • Less than 20% THD with above 25% load over entire input range
  • Less than 300mW standby power losses at no load
Output voltage options PMP20612.1 PMP20612.2 PMP20612.3
Vin (Min) (V) 108 300 100
Vin (Max) (V) 305 460 460
Vout (Nom) (V) 434 200 13
Iout (Max) (A) .51 1 .2
Output Power (W) 221.34 200 2.6
Isolated/Non-Isolated Non-Isolated Isolated Isolated
Input Type AC DC DC
Topology Boost- CCM Flyback- DCM Flyback- DCM

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.

TIDUD71.PDF (2069 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

TIDRQY6.ZIP (1267 K)

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

TIDCDF7.ZIP (2272 K)

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

TIDRQY5.PDF (1287 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Current sense amplifiers analog output

INA18026V, 350kHz current sense amplifier

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

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

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

UCC28910700V Flyback switcher with constant-voltage constant-current and primary-side control

Data sheet document-pdfAcrobat PDF open-in-new HTML
General-purpose op amps

LM358-NDual, 32-V, 1-MHz op amp

Data sheet document-pdfAcrobat PDF open-in-new HTML
Power factor correction (PFC) controllers

UCC2818018-kHz-250-kHz CCM PFC controller with enhanced startup & transient response

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

LM4040Fixed voltage, 45-µA, precision micropower shunt voltage reference

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

Technical documentation

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Type Title Date
* Test report PMP20612 Test Results May 17, 2017
Technical article Unique techniques to increase controller power Aug. 23, 2017

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