12 V, 15 W (20 W peak) isolated flyback converter based on the VIPER38LE

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  • The STEVAL-ISA153V1 product evaluation board implements a 12 V/1.25 A, 15 W (20 W peak) isolated flyback wide-range mains developed for general-purpose applications.

    The core of the application is the VIPER38LE, the latest offline converter from the VIPerPlus family. The device is a high-voltage converter that smartly 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 and minimal BOM, high efficiency and low standby consumption. Extremely low consumption under no-load conditions is ensured thanks to burst mode operation which reduces the average switching frequency and minimizes all frequency-related losses.
    The VIPER38LE operates at a fixed 60 kHz frequency. Frequency jittering is implemented, which helps the application meet electromagnetic disturbance standards.
    The IC includes high-level protection features such as dual-level OCP, output overvoltage, short-circuit, and thermal shutdown with hysteresis. After removal of a fault condition, the IC is automatically restarted.

    Key Features

    • Universal input mains range: 90 – 265 VACfrequency: 50 - 60 Hz
    • Output voltage/current: 12 V/1.25 A (1.65 A peak)
    • Very compact size
    • Standby mains consumption: lower than 30 mW at 230 VAC
    • Minimum active mode efficiency: 81.55%
    • Minimum active mode at 10% load efficiency: 71.55%
    • EMI: in accordance 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
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STEVAL-ISA153V1 VIPER38LE
Active
65.0 1 3A991A2 ITALY - Check Availability

Distributor availability ofSTEVAL-ISA153V1

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 3 1 Order Now

Distributor reported inventory date: 2019-11-14

Distributor Name

MOUSER

Stock

3

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-11-14

Buy now

STEVAL-ISA153V1

Core Product

VIPER38LE

Marketing Status

Active

Unit Price (US$)

65.0*

Distributor availability ofSTEVAL-ISA153V1

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 3 1 Order Now

Distributor reported inventory date: 2019-11-14

Distributor Name

MOUSER

Stock

3

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-11-14

Unit Price (US$)

65

Quantity

1

ECCN (US)

3A991A2

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
      DB2334
      12 V, 15 W (20 W peak) isolated flyback converter based on the VIPER38LE
      1.0
      261.95 KB
      PDF
      DB2334

      12 V, 15 W (20 W peak) isolated flyback converter based on the VIPER38LE

    • Description Version Size Action
      AN4479
      12 V, 15 W peak 20 W isolated flyback converter based on VIPer38LE
      1.0
      1.08 MB
      PDF
      AN4479

      12 V, 15 W peak 20 W isolated flyback converter based on VIPer38LE

Hardware Resources

    • Description Version Size Action
      STEVAL-ISA153V1 gerber files 1.0
      481.08 KB
      ZIP

      STEVAL-ISA153V1 gerber files

    • Description Version Size Action
      STEVAL-ISA153V1 BOM 1.1
      54.46 KB
      PDF

      STEVAL-ISA153V1 BOM

    • Description Version Size Action
      STEVAL-ISA153V1 schematics 1.0
      47.67 KB
      PDF

      STEVAL-ISA153V1 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-ISA153V1
Active
CARD Industrial Ecopack2 -

STEVAL-ISA153V1

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.