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  • The STEVAL-ISA121V1 demonstration board implements a 15 W single-output wide range mains power supply to be used as an auxiliary adapter in applications such as LCD, plasma or LED TVs, desktop computers, etc., when the main power supply is OFF or in standby mode and the auxiliary power supply must provide energy only to some specific parts of the equipment such as USB ports, remote receiver, etc.

    The board uses the new VIPER37LE, an offline high voltage converter from the VIPerPlus family, specifically designed for fixed frequency flyback converters, which combines a high-performance low voltage PWM controller chip and a max. 4.5 Ω RDS(on), 800 V BV(DSS), avalanche-rugged power MOSFET in the same package.
    The application is optimized for less than 30 mW standby consumption and meets EPA 2.0 limits, thereby helping to meet the most stringent energy-saving requirements.
    The board implements several protection features that considerably increase end-product safety and reliability: overload protection, overvoltage protection, brownout protection, hysteretic thermal protection, shorted secondary rectifier detection, and transformer saturation protection, all of which are in auto-restart mode.

    Key Features

    • Universal input mains range:
      • input voltage 90 - 264 VAC
      • frequency 45 - 65 Hz
    • Single-output voltage: 5 V @ 3 A continuous operation
    • Standby mains consumption:< 30 mW @ 230 VAC
    • Average efficiency: > 75%
    • Complies with EuP Lot 6 requirements
    • Fully protected against faults overload, overvoltage, transformer saturation and overheating
    • Compliant with EMC norm EN55022-Class-B
    • RoHS compilant

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-ISA121V1
NRND
CARD Industrial Ecopack2 -

STEVAL-ISA121V1

Package:

CARD

Material Declaration**:

Marketing Status

NRND

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-ISA121V1 Available at 1 distributors

Distributor availability ofSTEVAL-ISA121V1

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2 1 Order Now

Distributor reported inventory date: 2020-11-30

Distributor Name

DIGIKEY

Stock

2

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-11-30

VIPER37LE
NRND
- EAR99 NEC ITALY - 134.0 / 1

STEVAL-ISA121V1

Core Product

VIPER37LE

Marketing Status

NRND

Budgetary Price (US$)*/Qty

134.0 / 1

Distributor availability ofSTEVAL-ISA121V1

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2 1 Order Now

Distributor reported inventory date: 2020-11-30

Distributor Name

DIGIKEY

Stock

2

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-11-30

Supplier

-

ECCN (US)

EAR99

ECCN (EU)

NEC

Budgetary Price (US$)* / Qty

134.0 / 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