VIPER12A-E

Active

Fixed frequency off line converter

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  • The VIPER12A combines a dedicated current mode PWM controller with a high voltage power MOSFET on the same silicon chip.

    Typical applications cover off line power supplies for battery charger adapters, standby power supplies for TV or monitors, auxiliary supplies for motor control, etc.
    The internal control circuit offers the following benefits: Large input voltage range on the VDD pin accommodates changes in auxiliary supply voltage (This feature is well adapted to battery charger adapter configurations), automatic burst mode in low load condition and overvoltage protection in HICCUP mode.

    Key Features

    • Fixed 60 kHz switching frequency
    • 9 V to 38 V wide range VDDvoltage
    • Current mode control
    • Auxiliary undervoltage lockout with hysteresis
    • High voltage start-up current source
    • Overtemperature, overcurrent and overvoltage protection with auto-restart
    • Typical power capability
      • European (195 - 265 Vac) 8 W for SO-8, 13 W for DIP-8
      • European (85 - 265 Vac) 5 W for SO-8, 8 W for DIP-8

Circuit Diagram

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STMicroelectronics - VIPER12A-E

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
VIPER12ADIP-E
Active
DIP-8 Industrial Ecopack1
VIPER12AS-E
Active
SO-8 Industrial Ecopack2
VIPER12ASTR-E
Active
SO-8 Industrial Ecopack2

VIPER12ADIP-E

Package:

DIP-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DIP-8

Grade

Industrial

RoHS Compliance Grade

Ecopack1

VIPER12AS-E

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

VIPER12ASTR-E

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

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
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Budgetary Price (US$)*/Qty
More info
min
max
VIPER12ADIP-E Available at 7 distributors

Distributor availability ofVIPER12ADIP-E

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2939 1 Order Now
COMPEL EUROPE 1997 1 Order Now
ARROW EUROPE 2514 0 Order Now
Newark Element14 AMERICA 2 0 Order Now
ARROW AMERICA 1450 2000 Order Now
MOUSER WORLDWIDE 4068 1 Order Now
Farnell Element14 EUROPE 2514 1 Order Now

Distributor reported inventory date: 2021-01-25

Distributor Name

DIGIKEY

Stock

2939

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

1997

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

2514

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

2

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

1450

Min.Order

2000

Region

AMERICA Order Now

MOUSER

Stock

4068

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2514

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-01-25

Buy Direct
Active
EAR99 NEC Tube DIP-8 - - 0.239 / 1k
MORE INFO

RDS(on) (Ω) (max):

30

Transistor Breakdown Voltage (V) (min):

730

Drain Current (A) (nom):

0.4

Country of Origin:

CHINA

VIPER12ASTR-E Available at 8 distributors

Distributor availability ofVIPER12ASTR-E

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4377 1 Order Now
COMPEL EUROPE 19703 1 Order Now
RS COMPONENTS EUROPE 28425 5 Order Now
AVNET AMERICA 7500 0 Order Now
ARROW EUROPE 1392500 0 Order Now
ARROW AMERICA 27500 2500 Order Now
MOUSER WORLDWIDE 1892 1 Order Now
Farnell Element14 EUROPE 4902 1 Order Now

Distributor reported inventory date: 2021-01-25

Distributor Name

DIGIKEY

Stock

4377

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

19703

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

28425

Min.Order

5

Region

EUROPE Order Now

AVNET

Stock

7500

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

1392500

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

27500

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

1892

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4902

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-01-25

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel SO-8 - - 0.253 / 1k
MORE INFO

RDS(on) (Ω) (max):

30

Transistor Breakdown Voltage (V) (min):

730

Drain Current (A) (nom):

0.4

Country of Origin:

CHINA

VIPER12AS-E Available at 7 distributors

Distributor availability ofVIPER12AS-E

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6918 1 Order Now
COMPEL EUROPE 823 1 Order Now
RS COMPONENTS EUROPE 570 5 Order Now
ARROW EUROPE 6294 0 Order Now
MOUSER WORLDWIDE 19274 1 Order Now
Farnell Element14 EUROPE 2119 1 Order Now
ANGLIA Live EUROPE 2300 1 Order Now

Distributor reported inventory date: 2021-01-25

Distributor Name

DIGIKEY

Stock

6918

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

823

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

570

Min.Order

5

Region

EUROPE Order Now

ARROW

Stock

6294

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

19274

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2119

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

2300

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-01-25

Buy Direct
Active
EAR99 NEC Tube SO-8 - - 0.253 / 1k
MORE INFO

RDS(on) (Ω) (max):

30

Transistor Breakdown Voltage (V) (min):

730

Drain Current (A) (nom):

0.4

Country of Origin:

CHINA

VIPER12ADIP-E

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.239 / 1k

Distributor availability ofVIPER12ADIP-E

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2939 1 Order Now
COMPEL EUROPE 1997 1 Order Now
ARROW EUROPE 2514 0 Order Now
Newark Element14 AMERICA 2 0 Order Now
ARROW AMERICA 1450 2000 Order Now
MOUSER WORLDWIDE 4068 1 Order Now
Farnell Element14 EUROPE 2514 1 Order Now

Distributor reported inventory date: 2021-01-25

Distributor Name

DIGIKEY

Stock

2939

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

1997

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

2514

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

2

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

1450

Min.Order

2000

Region

AMERICA Order Now

MOUSER

Stock

4068

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2514

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-01-25

ECCN (EU)

NEC

Packing Type

Tube

Package

DIP-8

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

0.239 / 1k

RDS(on) (Ω) (max)

30

Transistor Breakdown Voltage (V) (min)

730

Drain Current (A) (nom)

0.4

Country of Origin

CHINA

VIPER12ASTR-E

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.253 / 1k

Distributor availability ofVIPER12ASTR-E

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4377 1 Order Now
COMPEL EUROPE 19703 1 Order Now
RS COMPONENTS EUROPE 28425 5 Order Now
AVNET AMERICA 7500 0 Order Now
ARROW EUROPE 1392500 0 Order Now
ARROW AMERICA 27500 2500 Order Now
MOUSER WORLDWIDE 1892 1 Order Now
Farnell Element14 EUROPE 4902 1 Order Now

Distributor reported inventory date: 2021-01-25

Distributor Name

DIGIKEY

Stock

4377

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

19703

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

28425

Min.Order

5

Region

EUROPE Order Now

AVNET

Stock

7500

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

1392500

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

27500

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

1892

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4902

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-01-25

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SO-8

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

0.253 / 1k

RDS(on) (Ω) (max)

30

Transistor Breakdown Voltage (V) (min)

730

Drain Current (A) (nom)

0.4

Country of Origin

CHINA

VIPER12AS-E

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.253 / 1k

Distributor availability ofVIPER12AS-E

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6918 1 Order Now
COMPEL EUROPE 823 1 Order Now
RS COMPONENTS EUROPE 570 5 Order Now
ARROW EUROPE 6294 0 Order Now
MOUSER WORLDWIDE 19274 1 Order Now
Farnell Element14 EUROPE 2119 1 Order Now
ANGLIA Live EUROPE 2300 1 Order Now

Distributor reported inventory date: 2021-01-25

Distributor Name

DIGIKEY

Stock

6918

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

823

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

570

Min.Order

5

Region

EUROPE Order Now

ARROW

Stock

6294

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

19274

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2119

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

2300

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-01-25

ECCN (EU)

NEC

Packing Type

Tube

Package

SO-8

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

0.253 / 1k

RDS(on) (Ω) (max)

30

Transistor Breakdown Voltage (V) (min)

730

Drain Current (A) (nom)

0.4

Country of Origin

CHINA

(*) 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