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  • The STEVAL-ISA191V1 evaluation board implements an isolated flyback double output (5 V / 1.2 A and 12 V / 0.75 A) 15 W wide range mains developed for general purpose applications.

    The core of the application is the VIPer37LE, a new Off-line high Voltage 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 evaluation board features a small size, minimal BOM, high efficiency and low standby consumption. 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.
    VIPer37LE operates at 60 kHz fixed frequency. Frequency jittering is implemented to help meet electromagnetic disturbance standards, and the device implements several protections, including overvoltage, overload, output short circuit, secondary winding short, hard transformer saturation protection and brown out protection, for improved design safety and reliability.

    Key Features

    • Universal input mains range: 85 – 265 VAC frequency: 50 – 60 Hz
    • Output voltage1: 5 V / 1.2 A
    • Output voltage2: 12 V / 0.75 A
    • Very compact size
    • Stand-by mains consumption: < 40 mW at 230 VAC
    • Average efficiency: > 75%
    • EMI: according to EN55022-Class-B
    • RoHS compliant

Recommended for you

Related Applications

Power Supplies and Converters

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade WEEE Compliant Material Declaration**
STEVAL-ISA191V1
Active
CARD Industrial Ecopack2 -

STEVAL-ISA191V1

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.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Core Product
Marketing Status
Supplier
ECCN (US)
ECCN (EU)
Country of Origin
Board production status
Budgetary Price (US$)*/Qty
STEVAL-ISA191V1 Available at 2 distributors

Distributor availability ofSTEVAL-ISA191V1

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

Distributor reported inventory date: 2020-11-25

Distributor Name

DIGIKEY

Stock

1

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

3

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-11-25

Buy Direct VIPER37LE
Active
ST EAR99 NEC ITALY - 75.0 / 1

STEVAL-ISA191V1

Core Product

VIPER37LE

Marketing Status

Active

Budgetary Price (US$)*/Qty

75.0 / 1

Distributor availability ofSTEVAL-ISA191V1

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

Distributor reported inventory date: 2020-11-25

Distributor Name

DIGIKEY

Stock

1

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

3

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-11-25

Supplier

ST

ECCN (US)

EAR99

ECCN (EU)

NEC

Budgetary Price (US$)* / Qty

75.0 / 1

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