9Vdc-57Vdc Input, 56V/20W Isolated Flyback


Design files


This reference design uses the TPS40210 current mode controller to generate an isolated 56V/0.35A output from a wide 9V - 57V DC input. This design uses diode rectification on the output stage and achieves efficiencies up to 89% at full load with peaks over 90%.

Output voltage options PMP6963.1
Vin (Min) (V) 9
Vin (Max) (V) 57
Vout (Nom) (V) 56
Iout (Max) (A) .35
Output Power (W) 19.6
Isolated/Non-Isolated Isolated
Input Type DC
Topology Flyback- Non Sync^Flyback- CCM

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.

SLUU875.PDF (3073 K)

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

SLUR826.PDF (42 K)

Detailed schematic diagram for design layout and components

SLUR827.PDF (25 K)

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


Includes TI products in the design and potential alternatives.

Boost controllers (external switch)

TPS402104.5~52V Wide Input Range Boost/SEPIC/Flyback DC-DC Controller

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

TL431Adjustable precision shunt regulator

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

Technical documentation

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Type Title Date
Technical article Power Tips: Calculate an R-C snubber in seven steps May 05, 2016
Test report PMP6963 Test Results Feb. 15, 2012

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