Low-Line Wide Input LLC Resonant Conv for Consumer Electronics (12V@10A) Reference Design


Design files


The PMP8762 reference design provides a 12V/10A output from a low line-input voltage (100Vac to 132Vac) with a single LLC resonant converter stage. This design is featured with its low circuit cost, low electromagnetic interference (both conduction and radiation), and high efficiency (over 87% @ full load). This design uses the UCC25600 resonant converter controller to control the LLC resonant converter.

Output voltage options PMP8762.1
Vin (Min) (V) 100
Vin (Max) (V) 132
Vout (Nom) (V) 12
Iout (Max) (A) 10
Output Power (W) 120
Isolated/Non-Isolated Isolated
Input Type AC
Topology Half Bridge- LLC^Half Bridge- 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

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

SLUUA83.PDF (3753 K)

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

SLURA01.PDF (163 K)

Detailed schematic diagram for design layout and components

SLURA02.PDF (123 K)

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

SLUC419.ZIP (247 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)

UCC256008-pin high-performance resonant mode LLC controller

Data sheet: PDF | HTML

TL331High Voltage Single Differential Comparator

Data sheet: PDF | HTML
Shunt voltage references

TL431Adjustable precision shunt regulator

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Technical article Power Tips: Why is your LLC resonant converter frequency way, way off PDF | HTML Sep. 27, 2015
Test report PMP8762 Test Results Jan. 10, 2013

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