400V Input, 50W Output Multiple-Output Bias Supply Reference Design


Design files


PMP20396 is a multiple-output isolated bias supply reference design. With 100V or above input voltage, this design can provide maximum 2W output power. With 300V or above input voltage, this design can provide maximum 50W output power. Four different outputs are provided in this design - 5V/500mA and 12V/50mA at primary side and 5V/700mA and 12V/4000mA at secondary side. Peak 90% efficiency is achieved in this design.

  • 2W maximum output power with 100V or 400V input
  • 50W maximum output power with 300V to 400V input
  • 90% peak efficiency
  • Multiple-output - 5V/500mA, 12V/50mA at primary, 5V/700mA, 12V/4000mA at secondary
Output voltage options PMP20396.1 PMP20396.2 PMP20396.3 PMP20396.4
Vin (Min) (V) 100 6 13 13
Vin (Max) (V) 400 17 35 35
Vout (Nom) (V) 12 5 5 12
Iout (Max) (A) 4 .7 .5 .05
Output Power (W) 48 3.5 2.5 .6
Isolated/Non-Isolated Isolated Non-Isolated Non-Isolated Non-Isolated
Input Type DC DC DC DC
Topology Flyback- DCM Buck- Synchronous Buck- Synchronous Linear Regulator
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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.

TIDUE17.PDF (2470 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


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

TIDCE95.ZIP (1800 K)

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


PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

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Technical documentation

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Type Title Date
* Test report PMP20396 Test Results Dec. 12, 2017

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