ST Life.augmented


Offline power converter demonstration board using the Viper16
  • active Active

The STEVAL-ISA118V1 is an offline power converter in flyback topology with jittered fixed frequency. The board uses the VIPer16, allowing the application to handle up to approximately 6 W over a wide input voltage range, and up to about 10 W in the European single input voltage range.

The VIPer16 can operate with or without an auxiliary winding; both options are implemented on the board. When operating with the auxiliary winding, it can achieve very low standby consumption. Available protection features include thermal shutdown with hysteresis, delayed overload and open-loop failure protection.

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Data Brief

Key Features

  • Offline converter for wide range input voltage
  • Output power: up 6 W
  • No need for auxiliary winding (selectable option)
  • 30 mW standby consumption (with auxiliary winding)
  • High efficiency tested in accordance with the ENERGY STAR®active mode method
  • EMI test pre-compliant to EN55022 Class B
  • RoHS compliant


Design Resources


Technical Documentation

Product Specifications

Description Version Size
DB1848: Offline power converter demonstration board using the Viper16
1.0 102 KB

Hardware Resources

Board Manufacturing Specification

Description Version Size
STEVAL-ISA118V1 gerber files
1.0 116 KB

Bill of Materials

Description Version Size
1.2 81 KB

Schematic Pack

Description Version Size
STEVAL-ISA118V1 schematics
1.0 82 KB

Sample & Buy

Part Number Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-ISA118V1ActiveVIPER16LNBuy Direct57.57Distributor reported inventory date: 2015-05-28
Distributor NameRegionStockMin. order

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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