12 V - 15 W quasi resonant flyback converter based on the VIPER35HD

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  • The STEVAl-ISA171V1 implements a 15 W power supply designed in quasi resonant flyback topology for a wide-range AC input voltage. Its key features are its small size and minimal bill of material, high efficiency and low standby consumption.

    The core of the application is the VIPER35, the quasi-resonant offline high voltage converter from the VIPerPLUS product family.
    The VIPER35 integrates an 800 V rugged power MOSFET with PWM current-mode control.
    Extremely low consumption under no-load conditions is ensured thanks to burst mode operation that reduces the average switching frequency and minimizes all frequency-related losses.
    The VIPER35 operates in quasi resonant mode, a feature that helps to meet the EMI standards.

    Key Features

    • Wide input voltage range: 90 VAC to 264 VAC
    • Output voltage: 12 V
    • Output current: 1.25 A
    • Rated output power: 15 W
    • Quasi resonant operation
    • Input power standby @ 230 VAC: < 30 mW
    • Active mode efficiency: > 82%
    • EMI: pre-compliance with EN55022-Class-B
    • RoHS compliant

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Part Number
Core Product
Marketing Status
Budgetary Price (US$)*
Quantity
ECCN (US)
Country of Origin
Board production status
Order from Distributors
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STEVAL-ISA171V1 VIPER35HD
Active
61.5 1 EAR99 ITALY - Check Availability

Distributor availability ofSTEVAL-ISA171V1

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 8 1 Order Now

Distributor reported inventory date: 2019-08-25

Distributor Name

MOUSER

Stock

8

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-08-25

Buy now

STEVAL-ISA171V1

Core Product

VIPER35HD

Marketing Status

Active

Unit Price (US$)

61.5*

Distributor availability ofSTEVAL-ISA171V1

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 8 1 Order Now

Distributor reported inventory date: 2019-08-25

Distributor Name

MOUSER

Stock

8

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-08-25

Unit Price (US$)

61.5

Quantity

1

ECCN (US)

EAR99

Country of Origin

ITALY

Board production status

-

(*) 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

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00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DB2744
      12 V - 15 W quasi resonant flyback converter based on the VIPER35HD
      1.0
      216.07 KB
      PDF
      DB2744

      12 V - 15 W quasi resonant flyback converter based on the VIPER35HD

    • Description Version Size Action
      AN4812
      15 W, 12 V output, isolated flyback converter using Viper35HD device from the VIPer™ Plus family of high voltage converters
      1.0
      1.5 MB
      PDF
      AN4812

      15 W, 12 V output, isolated flyback converter using Viper35HD device from the VIPer™ Plus family of high voltage converters

Hardware Resources

    • Description Version Size Action
      STEVAL-ISA171V1 gerber files 1.0
      326.88 KB
      ZIP

      STEVAL-ISA171V1 gerber files

    • Description Version Size Action
      STEVAL-ISA171V1 BOM 1.0
      64.32 KB
      PDF

      STEVAL-ISA171V1 BOM

    • Description Version Size Action
      STEVAL-ISA171V1 schematic 1.0
      48.69 KB
      PDF

      STEVAL-ISA171V1 schematic

Publications and Collaterals

    • Description Version Size Action
      eDesignSuite-The smart way to design your application 1.0
      842.88 KB
      PDF

      eDesignSuite-The smart way to design your application

Legal

    • Description Version Size Action
      Evaluation products license agreement 1.6
      74.12 KB
      PDF

      Evaluation products license agreement

Part Number Marketing Status Package Grade RoHS Compliance Grade WEEE Compliant Material Declaration**
STEVAL-ISA171V1
Active
CARD Industrial Ecopack2 -

STEVAL-ISA171V1

Package:

CARD

Material Declaration**:

Marketing Status

Active

Package

CARD

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com 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.