Overview
Sample & Buy
Solutions
Resources
Tools & Software
Quality & Reliability
eDesignSuite
Get Started
Partner products
Sales Briefcase
  • 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

Download Download

Recommended for you

Evaluation Tools

    • Part Number

      Ultra small battery charger using TSM1052

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS4583
      Low power offline switched-mode power supply primary switcher
      2.1
      522.57 KB
      PDF
      DS4583

      Low power offline switched-mode power supply primary switcher

    • Description Version Size Action
      AN2747
      250 W HID metal halide electronic ballast
      1.1
      1.24 MB
      PDF
      AN2300
      An alternative solution to capacitive power supply using buck converter based on VIPer12A
      1.2
      264.83 KB
      PDF
      AN2448
      EVALTSM1052: Ultra small battery charger using TSM1052
      1.1
      1.08 MB
      PDF
      AN2264
      THREE-PHASE SMPS FOR LOW POWER APPLICATIONS WITH VIPer12A
      1.2
      1.03 MB
      PDF
      AN2173
      Using a VIPer12-based power supply to replace a wall transformer
      1.2
      886.67 KB
      PDF
      AN1894
      VIPower: VIPer12A non insulated buck and buck-boost converter reference board
      1.2
      304.94 KB
      PDF
      AN1514
      VIPower: double output buck or buck-boost converter using VIPer12A-E/22A-E
      2.1
      259.87 KB
      PDF
      AN2063
      VIPower™: low consumption standby power with the VIPerx2A family
      2.0
      391.9 KB
      PDF
      AN1934
      VIPower™: the VIPer12A-E non-isolated flyback converter reference board
      2.0
      802.63 KB
      PDF
      AN2747

      250 W HID metal halide electronic ballast

      AN2300

      An alternative solution to capacitive power supply using buck converter based on VIPer12A

      AN2448

      EVALTSM1052: Ultra small battery charger using TSM1052

      AN2264

      THREE-PHASE SMPS FOR LOW POWER APPLICATIONS WITH VIPer12A

      AN2173

      Using a VIPer12-based power supply to replace a wall transformer

      AN1894

      VIPower: VIPer12A non insulated buck and buck-boost converter reference board

      AN1514

      VIPower: double output buck or buck-boost converter using VIPer12A-E/22A-E

      AN2063

      VIPower™: low consumption standby power with the VIPerx2A family

      AN1934

      VIPower™: the VIPer12A-E non-isolated flyback converter reference board

    • Description Version Size Action
      UM1491
      100 W 3-phase inverter demonstration board using the L6390 and STD5N52U for vector control
      1.0
      411.47 KB
      PDF
      UM1491

      100 W 3-phase inverter demonstration board using the L6390 and STD5N52U for vector control

    • Description Version Size Action
      AN2448
      EVALTSM1052: Ultra small battery charger using TSM1052
      1.1
      1.08 MB
      PDF
      AN2448

      EVALTSM1052: Ultra small battery charger using TSM1052

Publications and Collaterals

    • Description Version Size Action
      Power Management Guide 07.2020
      7.12 MB
      PDF
      VIPerPlus - Bring a Plus to your SMPS design 05.2020
      481.54 KB
      PDF

      Power Management Guide

      VIPerPlus - Bring a Plus to your SMPS design

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 10 distributors

Distributor availability ofVIPER12ADIP-E

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1309 1 Order Now
YOSUN ASIA/PACIFIC 2020 1 Order Now
RS COMPONENTS EUROPE 60 5 Order Now
FUTURE WORLDWIDE 550 1 Order Now
ARROW EUROPE 140 0 Order Now
Newark Element14 AMERICA 2 0 Order Now
ARROW AMERICA 121450 2000 Order Now
MOUSER WORLDWIDE 4955 1 Order Now
Farnell Element14 EUROPE 2899 1 Order Now
RUTRONIK EUROPE 850 50 Order Now

Distributor reported inventory date: 2020-08-04

Distributor Name

DIGIKEY

Stock

1309

Min.Order

1

Region

WORLDWIDE Order Now

YOSUN

Stock

2020

Min.Order

1

Region

ASIA/PACIFIC Order Now

RS COMPONENTS

Stock

60

Min.Order

5

Region

EUROPE Order Now

FUTURE

Stock

550

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

140

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

2

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

121450

Min.Order

2000

Region

AMERICA Order Now

MOUSER

Stock

4955

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2899

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

850

Min.Order

50

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-04

Buy now
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 4416 1 Order Now
COMPEL EUROPE 38011 1 Order Now
RS COMPONENTS EUROPE 28515 5 Order Now
AVNET AMERICA 17500 0 Order Now
ARROW EUROPE 1522500 0 Order Now
ARROW AMERICA 65000 2500 Order Now
MOUSER WORLDWIDE 4649 1 Order Now
Farnell Element14 EUROPE 4986 1 Order Now

Distributor reported inventory date: 2020-08-03

Distributor Name

DIGIKEY

Stock

4416

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

38011

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

28515

Min.Order

5

Region

EUROPE Order Now

AVNET

Stock

17500

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

1522500

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

65000

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

4649

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4986

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-03

Get sample Buy now
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 1022 1 Order Now
RS COMPONENTS EUROPE 1015 5 Order Now
ARROW EUROPE 1500 0 Order Now
Newark Element14 AMERICA 400 0 Order Now
MOUSER WORLDWIDE 21431 1 Order Now
Farnell Element14 EUROPE 2742 1 Order Now
ANGLIA Live EUROPE 2300 1 Order Now

Distributor reported inventory date: 2020-08-02

Distributor Name

DIGIKEY

Stock

1022

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1015

Min.Order

5

Region

EUROPE Order Now

ARROW

Stock

1500

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

400

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

21431

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2742

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

2300

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-02

Buy now
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 1309 1 Order Now
YOSUN ASIA/PACIFIC 2020 1 Order Now
RS COMPONENTS EUROPE 60 5 Order Now
FUTURE WORLDWIDE 550 1 Order Now
ARROW EUROPE 140 0 Order Now
Newark Element14 AMERICA 2 0 Order Now
ARROW AMERICA 121450 2000 Order Now
MOUSER WORLDWIDE 4955 1 Order Now
Farnell Element14 EUROPE 2899 1 Order Now
RUTRONIK EUROPE 850 50 Order Now

Distributor reported inventory date: 2020-08-04

Distributor Name

DIGIKEY

Stock

1309

Min.Order

1

Region

WORLDWIDE Order Now

YOSUN

Stock

2020

Min.Order

1

Region

ASIA/PACIFIC Order Now

RS COMPONENTS

Stock

60

Min.Order

5

Region

EUROPE Order Now

FUTURE

Stock

550

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

140

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

2

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

121450

Min.Order

2000

Region

AMERICA Order Now

MOUSER

Stock

4955

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2899

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

850

Min.Order

50

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-04

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 4416 1 Order Now
COMPEL EUROPE 38011 1 Order Now
RS COMPONENTS EUROPE 28515 5 Order Now
AVNET AMERICA 17500 0 Order Now
ARROW EUROPE 1522500 0 Order Now
ARROW AMERICA 65000 2500 Order Now
MOUSER WORLDWIDE 4649 1 Order Now
Farnell Element14 EUROPE 4986 1 Order Now

Distributor reported inventory date: 2020-08-03

Distributor Name

DIGIKEY

Stock

4416

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

38011

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

28515

Min.Order

5

Region

EUROPE Order Now

AVNET

Stock

17500

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

1522500

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

65000

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

4649

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4986

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-03

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 1022 1 Order Now
RS COMPONENTS EUROPE 1015 5 Order Now
ARROW EUROPE 1500 0 Order Now
Newark Element14 AMERICA 400 0 Order Now
MOUSER WORLDWIDE 21431 1 Order Now
Farnell Element14 EUROPE 2742 1 Order Now
ANGLIA Live EUROPE 2300 1 Order Now

Distributor reported inventory date: 2020-08-02

Distributor Name

DIGIKEY

Stock

1022

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1015

Min.Order

5

Region

EUROPE Order Now

ARROW

Stock

1500

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

400

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

21431

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2742

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

2300

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-02

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