PFC, Resonant Half-Bridge, Buck (PFC, 42V@6A) for Digital Audio


Design files


The PMP5327 reference design provides a 42V/6A output with power factor correction from a universal AC input voltage range. This design uses the UCC28019A to control the front end PFC boost stage. The output of the PFC is followed by a UCC25600 LLC resonant half-bridge. The total efficieny, from input to output is over 92% from a 230VAC input and over 89% from a 115VAC input. An additional 12V/250mA output is also generated by this supply.

Output voltage options PMP5327.1
Vin (Min) (V) 85
Vin (Max) (V) 265
Vout (Nom) (V) 42
Iout (Max) (A) 6
Output Power (W) 252
Isolated/Non-Isolated Isolated
Input Type AC
Topology Boost- PFC^Half Bridge- LLC^Half Bridge- Resonant

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.

SLUR135.PDF (3955 K)

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

SLUR136.PDF (77 K)

Detailed schematic diagram for design layout and components

SLUR134.PDF (23 K)

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

SLUC420.ZIP (169 K)

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

SLUUA84.PDF (155 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Buck converters (integrated switch)

TPS540603.5V to 60V Input, 0.5A Step-Down Converter with Eco-Mode

Data sheet document-pdfAcrobat PDF open-in-new HTML
Buck converters (integrated switch)

TPS54060-EPTPS54060-EP- 0.5-A, 60V Step Down DC/DC Converter with Eco-Mode

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

UCC256008-pin high-performance resonant mode LLC controller

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

UCC2889Off-line power supply controller, -40C to 85C

Data sheet document-pdfAcrobat PDF
Power factor correction (PFC) controllers

UCC28019A65kHz CCM PFC controller with Enhanced Start-up and Transient Response

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

Technical documentation

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Type Title Date
Technical article Power Tips: Get to know LLC series resonant converter design Sep. 23, 2014
Test report PMP5327 REVB TEST RESULTS Dec. 17, 2010

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