8.4 W / 30 W peak power offline flyback converter using VIPER38HD

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  • The STEVAL-ISA182V1 evaluation board implements an isolated flyback converter (12 V / 0.7 A) 8.4 W (30 W peak), US range 85 – 132 VAC, developed for metering.

    The core of the application is the VIPER38HD, the latest offline converter from the VIPerPlus family. The device is a high-voltage converter that intelligently integrates an 800 V rugged power MOSFET with PWM current-mode control. The device features an adjustable extra power timer (EPT) that enables the IC to sustain overload conditions for a few seconds.
    The main characteristics of the evaluation board are its small size, minimal BoM, high efficiency and low standby consumption. Extremely low consumption under the no-load condition is ensured thanks to burst mode operation that reduces the average switching frequency and minimizes all frequency related losses.
    VIPER38HD operates at 115 kHz fixed frequency. Frequency jittering is implemented to help meet the standards regarding electromagnetic disturbance. The IC features high-level protections like dual-level OCP, output overvoltage, short-circuits and thermal shutdown with hysteresis. After the removal of a fault condition, the IC is automatically restarted.

    Key Features

    • US input range: 85 – 132 VAC, frequency: 50 – 60 Hz
    • Output voltage / current: 12 V / 0.7 A (2.5 A peak)
    • Very compact size
    • Standby mains consumption: lower than 25 mW at 115 VAC
    • Min. active mode efficiency: 81.14%
    • Min. active mode at 10% load efficiency: 71.14%
    • EMI: according to EN55022-Class-B
    • RoHS compliant

Sample & Buy

Part Number
Core Product
Marketing Status
Budgetary Price (US$)*
Quantity
ECCN (US)
Country of Origin
Board production status
Order from Distributors
Order from ST
STEVAL-ISA182V1 VIPER38HD
Active
48 1 EAR99 ITALY - Check Availability

Distributor availability ofSTEVAL-ISA182V1

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1 1 Order Now
RS COMPONENTS EUROPE 5 1 Order Now
Farnell Element14 EUROPE 6 1 Order Now

Distributor reported inventory date: 2019-09-13

Distributor Name

DIGIKEY

Stock

1

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

5

Min.Order

1

Region

EUROPE Order Now

Farnell Element14

Stock

6

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-13

STEVAL-ISA182V1

Core Product

VIPER38HD

Marketing Status

Active

Unit Price (US$)

48.0*

Distributor availability ofSTEVAL-ISA182V1

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1 1 Order Now
RS COMPONENTS EUROPE 5 1 Order Now
Farnell Element14 EUROPE 6 1 Order Now

Distributor reported inventory date: 2019-09-13

Distributor Name

DIGIKEY

Stock

1

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

5

Min.Order

1

Region

EUROPE Order Now

Farnell Element14

Stock

6

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-13

Unit Price (US$)

48

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
      DB3047
      8.4 W / 30 W peak power offline flyback converter using VIPER38HD
      1.0
      207.03 KB
      PDF
      DB3047

      8.4 W / 30 W peak power offline flyback converter using VIPER38HD

    • Description Version Size Action
      AN4924
      12 V, 8.4 W peak power 30 W isolated flyback converter using VIPer38HD
      1.0
      2.94 MB
      PDF
      AN4924

      12 V, 8.4 W peak power 30 W isolated flyback converter using VIPer38HD

Hardware Resources

    • Description Version Size Action
      STEVAL-ISA182V1 gerber files 1.0
      330.89 KB
      ZIP

      STEVAL-ISA182V1 gerber files

    • Description Version Size Action
      STEVAL-ISA182V1 BOM 1.0
      28.82 KB
      PDF

      STEVAL-ISA182V1 BOM

    • Description Version Size Action
      STEVAL-ISA182V1 schematics 1.0
      223.34 KB
      PDF

      STEVAL-ISA182V1 schematics

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-ISA182V1
Active
CARD Industrial Ecopack2 -

STEVAL-ISA182V1

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.