PMP8930

Primary-Side Regulated Flyback w/85-265VAC Input High Output Energy Storage Reference Design

PMP8930

Design files

Overview

The PMP8930 reference design uses the UCC28710 primary-side regulated flyback controller to generate a 20V output from a univeral AC input. a bulk capacitor with slow-charge-fast-discharge circuit is placed at flyback output to provide long hold up time for the following step-down DC-DC stages. TPS54335 is used as the controller and power stage for the main 4V or 12V output. The valley switching of the UCC28710 allows this low-cost design to achieve a maximum load efficiency of 83%; no load losses are less than 70mW.

Output voltage options PMP8930.1 PMP8930.2 PMP8930.3 PMP8930.4 PMP8930.5
Vin (Min) (V) 85 85 85 85 85
Vin (Max) (V) 265 265 265 265 265
Vout (Nom) (V) 20 5 4 12 3.3
Iout (Max) (A) .05 .01 1.4 .15 .05
Output Power (W) 1 .05 5.6 1.8 .165
Isolated/Non-Isolated Isolated Isolated Isolated Isolated Isolated
Input Type AC AC AC AC AC
Topology Flyback- DCM Flyback- DCM Flyback- DCM 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.

SLUUAQ7.PDF (1611 K)

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

SLUUAQ8.PDF (1611 K)

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

SLUUAQ9.PDF (1611 K)

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

SLUUAR0.PDF (1611 K)

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

SLUUAR1.PDF (1611 K)

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

SLURAH4.PDF (133 K)

Detailed schematic diagram for design layout and components

SLURAH6.PDF (133 K)

Detailed schematic diagram for design layout and components

SLURAH8.PDF (133 K)

Detailed schematic diagram for design layout and components

SLURAI0.PDF (133 K)

Detailed schematic diagram for design layout and components

SLURAH5.PDF (120 K)

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

SLURAH7.PDF (120 K)

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

SLURAH9.PDF (120 K)

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

SLURAI1.PDF (120 K)

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

SLURAI2.PDF (133 K)

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

SLURAI3.PDF (120 K)

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

SLUC490.ZIP (233 K)

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

Products

Includes TI products in the design and potential alternatives.

Buck converters (integrated switch)

TPS54335A4.5V to 28V Input, 3A, Synchronous, Step-Down Converter with Eco-mode

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

LM2903Dual differential comparator, automotive grade

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

UCC28710Constant-voltage, constant-current PWM with PSR, valley switching & Programmable cable compensation

Data sheet document-pdfAcrobat PDF open-in-new HTML
Linear & low-dropout (LDO) regulators

LM3171.5-A, 40-V, adjustable linear voltage regulator

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

Technical documentation

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Type Title Date
Test report PMP8930.1 Test Results Sep. 12, 2013
Test report PMP8930.2 Test Results Sep. 12, 2013
Test report PMP8930.5 Test Results Sep. 12, 2013
Test report PMP8930.4 Test Results Sep. 12, 2013
Test report PMP8930.3 Test Results Sep. 12, 2013

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