VIPER37

Active

VIPerPlus family: Fixed frequency 15W high performance off line high voltage converter

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  • This device is an offline converter with an 800 V rugged power section, a PWM control, two levels of overcurrent protection, overvoltage and overload protection, hysteretic thermal protection, soft-start, and safe auto-restart after the removal of any fault condition. Burst mode operation and very low device consumption help to meet the standby energy saving regulations. Advance frequency jittering reduces EMI filter costs. Brownout function protects the switch mode power supply when the rectified input voltage level is below the normal minimum level specified for the system. The high voltage startup circuit is embedded in the device.

    Key Features

    • 800 V avalanche-rugged power MOSFET allowing ultra wide range input Vacto be achieved
    • PWM operation with adjustable limiting current
    • 30 mW standby power at 265 Vac
    • Operating frequency:
    • Frequency jittering for low EMC
    • Output overvoltage protection
    • High primary current protection (2nd OCP)
    • Input undervoltage setting (brownout)
    • Onboard soft-start
    • Safe auto-restart after a fault condition
    • Hysteretic thermal shutdown

Recommended for you

Related Applications

Home, Building and City Automation

Lighting and Controls

Evaluation Tools

    • Part Number

      Wide range single-output demonstration board based on the VIPER37LE

      15W, 12V output, isolated flyback converter using VIPer™ Plus - VIPER37HE

      5V/1.2A 12V/750mA double output flyback converter using VIPER37LD

      5 V - 12 V, 15 W double output isolated flyback converter based on VIPer37LE

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS8651
      VIPerPlus family: fixed frequency offline converter
      3.0
      1.67 MB
      PDF
      DS8651

      VIPerPlus family: fixed frequency offline converter

    • Description Version Size Action
      AN4007
      EVLVIP37LE5V3A: 15 W (5 V - 3 A) wide range single-output demonstration board
      2.0
      1.34 MB
      PDF
      AN4564
      Is a positive power supply mandatory for my application, or could a negative output work also?
      1.0
      384.04 KB
      PDF
      AN4007

      EVLVIP37LE5V3A: 15 W (5 V - 3 A) wide range single-output demonstration board

      AN4564

      Is a positive power supply mandatory for my application, or could a negative output work also?

    • Description Version Size Action
      UM2167
      OrCAD PSpice model usage instructions
      2.1
      250.98 KB
      PDF
      UM2167

      OrCAD PSpice model usage instructions

    • Description Version Size Action
      AN4830
      15 W, 5 V - 12 V double output, isolated flyback converter based on Viper37LE/D
      1.0
      3.13 MB
      PDF
      AN4419
      VIPER37HE: 15 W wide range single output evaluation board
      1.0
      1.42 MB
      PDF
      AN4830

      15 W, 5 V - 12 V double output, isolated flyback converter based on Viper37LE/D

      AN4419

      VIPER37HE: 15 W wide range single output evaluation board

HW Model, CAD Libraries & SVD

    • Description Version Size Action
      VIPer37 PSpice models 1.0
      55.3 KB
      ZIP

      VIPer37 PSpice models

Publications and Collaterals

    • Description Version Size Action
      Electric vehicle (EV) ecosystem 1.1
      1.28 MB
      PDF
      Power Management Guide 07.2020
      7.12 MB
      PDF
      VIPerPlus - Bring a Plus to your SMPS design 05.2020
      481.54 KB
      PDF
      VIPerPlus evaluation boards 05.2018
      1,002.52 KB
      PDF

      Electric vehicle (EV) ecosystem

      Power Management Guide

      VIPerPlus - Bring a Plus to your SMPS design

      VIPerPlus evaluation boards

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
VIPER37HD
Active
SO-16 Industrial Ecopack2
VIPER37HDTR
Active
SO-16 Industrial Ecopack2
VIPER37HE
Active
SDIP 10 Industrial Ecopack2
VIPER37LD
Active
SO-16 Industrial Ecopack2
VIPER37LDTR
Active
SO-16 Industrial Ecopack2
VIPER37LE
Active
SDIP 10 Industrial Ecopack2

VIPER37HD

Package:

SO-16

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

VIPER37HDTR

Package:

SO-16

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

VIPER37HE

Package:

SDIP 10

Material Declaration**:

Marketing Status

Active

Package

SDIP 10

Grade

Industrial

RoHS Compliance Grade

Ecopack2

VIPER37LD

Package:

SO-16

Material Declaration**:

Marketing Status

Active

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

VIPER37LDTR

Package:

SO-16

Material Declaration**:

Marketing Status

Active

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

VIPER37LE

Package:

SDIP 10

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SDIP 10

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.

eDesignSuite

Converter

Input

V This option is required. And must be less than or equal to Volt. Max [V]
V This option is required. And must be greater than or equal to Volt. Min [V]

Output Power

V This option is required and must be a number.
A This option is required and must be a number.

LED Driver

Input

V This option is required. And must be less than or equal to Volt. Max [V]
V This option is required. And must be greater than or equal to Volt. Min [V]

LED custom

V This option is required.
A This option is required.
Ω This option is required.

LEDs

This option is required. And must be a whole positive number between 1 and 20.
This option is required. And must be a whole positive number between 1 and 20.

Battery Charger

Input

V This option is required. And must be less than or equal to Volt. Max [V]
V This option is required. And must be greater than or equal to Volt. Min [V]

Output Power

V This option is required and must be a number.
A This option is required and must be a number.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Package
Packing Type
Marketing Status
RDS(on) (Ω) (max)
Transistor Breakdown Voltage (V) (min)
Drain Current (A) (nom)
ECCN (US)
Country of Origin
Budgetary Price (US$)*/Qty
VIPER37HDTR Available at 2 distributors

Distributor availability ofVIPER37HDTR

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 2498 1 Order Now
Farnell Element14 EUROPE 25 1 Order Now

Distributor reported inventory date: 2020-07-08

Distributor Name

MOUSER

Stock

2498

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

25

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-08

Get sample SO-16 Tape And Reel
Active
4.5 800 1 EAR99 THAILAND 0.464 / 1k
VIPER37LD Available at 2 distributors

Distributor availability ofVIPER37LD

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 1788 1 Order Now
Farnell Element14 EUROPE 75 1 Order Now

Distributor reported inventory date: 2020-07-08

Distributor Name

MOUSER

Stock

1788

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

75

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-08

Get sample SO-16 Tube
Active
4.5 800 1 EAR99 THAILAND 0.464 / 1k
VIPER37LDTR Available at 3 distributors

Distributor availability ofVIPER37LDTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 73 1 Order Now
RS COMPONENTS EUROPE 28 1 Order Now
MOUSER WORLDWIDE 2012 1 Order Now

Distributor reported inventory date: 2020-07-08

Distributor Name

DIGIKEY

Stock

73

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

28

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

2012

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-08

Get sample SO-16 Tape And Reel
Active
4.5 800 1 EAR99 THAILAND 0.464 / 1k
VIPER37LE Available at 5 distributors

Distributor availability ofVIPER37LE

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 786 1 Order Now
FUTURE WORLDWIDE 1720 1 Order Now
ARROW EUROPE 6 0 Order Now
ARROW AMERICA 2000 2000 Order Now
MOUSER WORLDWIDE 3995 1 Order Now

Distributor reported inventory date: 2020-07-08

Distributor Name

DIGIKEY

Stock

786

Min.Order

1

Region

WORLDWIDE Order Now

FUTURE

Stock

1720

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

6

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

2000

Min.Order

2000

Region

AMERICA Order Now

MOUSER

Stock

3995

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-08

Get sample SDIP 10 Tube
Active
4.5 800 1 EAR99 CHINA 0.485 / 1k
VIPER37HD Available at 3 distributors

Distributor availability ofVIPER37HD

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 35 1 Order Now
MOUSER WORLDWIDE 1836 1 Order Now
Farnell Element14 EUROPE 66 1 Order Now

Distributor reported inventory date: 2020-07-08

Distributor Name

RS COMPONENTS

Stock

35

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

1836

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

66

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-08

Get sample SO-16 Tube
Active
4.5 800 1 EAR99 THAILAND 0.464 / 1k
VIPER37HE Available at 2 distributors

Distributor availability ofVIPER37HE

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3156 1 Order Now
MOUSER WORLDWIDE 1707 1 Order Now

Distributor reported inventory date: 2020-07-08

Distributor Name

DIGIKEY

Stock

3156

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

1707

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-08

Get sample SDIP 10 Tube
Active
4.5 800 1 EAR99 CHINA 0.485 / 1k

VIPER37HDTR

Package

SO-16

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.464 / 1k

Distributor availability ofVIPER37HDTR

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 2498 1 Order Now
Farnell Element14 EUROPE 25 1 Order Now

Distributor reported inventory date: 2020-07-08

Distributor Name

MOUSER

Stock

2498

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

25

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-08

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.464 / 1k

RDS(on) (Ω) (max)

4.5

Transistor Breakdown Voltage (V) (min)

800

Drain Current (A) (nom)

1

ECCN (US)

EAR99

Country of Origin

THAILAND

VIPER37LD

Package

SO-16

Packing Type

Tube

Budgetary Price (US$)*/Qty

0.464 / 1k

Distributor availability ofVIPER37LD

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 1788 1 Order Now
Farnell Element14 EUROPE 75 1 Order Now

Distributor reported inventory date: 2020-07-08

Distributor Name

MOUSER

Stock

1788

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

75

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-08

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.464 / 1k

RDS(on) (Ω) (max)

4.5

Transistor Breakdown Voltage (V) (min)

800

Drain Current (A) (nom)

1

ECCN (US)

EAR99

Country of Origin

THAILAND

VIPER37LDTR

Package

SO-16

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.464 / 1k

Distributor availability ofVIPER37LDTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 73 1 Order Now
RS COMPONENTS EUROPE 28 1 Order Now
MOUSER WORLDWIDE 2012 1 Order Now

Distributor reported inventory date: 2020-07-08

Distributor Name

DIGIKEY

Stock

73

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

28

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

2012

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-08

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.464 / 1k

RDS(on) (Ω) (max)

4.5

Transistor Breakdown Voltage (V) (min)

800

Drain Current (A) (nom)

1

ECCN (US)

EAR99

Country of Origin

THAILAND

VIPER37LE

Package

SDIP 10

Packing Type

Tube

Budgetary Price (US$)*/Qty

0.485 / 1k

Distributor availability ofVIPER37LE

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 786 1 Order Now
FUTURE WORLDWIDE 1720 1 Order Now
ARROW EUROPE 6 0 Order Now
ARROW AMERICA 2000 2000 Order Now
MOUSER WORLDWIDE 3995 1 Order Now

Distributor reported inventory date: 2020-07-08

Distributor Name

DIGIKEY

Stock

786

Min.Order

1

Region

WORLDWIDE Order Now

FUTURE

Stock

1720

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

6

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

2000

Min.Order

2000

Region

AMERICA Order Now

MOUSER

Stock

3995

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-08

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.485 / 1k

RDS(on) (Ω) (max)

4.5

Transistor Breakdown Voltage (V) (min)

800

Drain Current (A) (nom)

1

ECCN (US)

EAR99

Country of Origin

CHINA

VIPER37HD

Package

SO-16

Packing Type

Tube

Budgetary Price (US$)*/Qty

0.464 / 1k

Distributor availability ofVIPER37HD

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 35 1 Order Now
MOUSER WORLDWIDE 1836 1 Order Now
Farnell Element14 EUROPE 66 1 Order Now

Distributor reported inventory date: 2020-07-08

Distributor Name

RS COMPONENTS

Stock

35

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

1836

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

66

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-08

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.464 / 1k

RDS(on) (Ω) (max)

4.5

Transistor Breakdown Voltage (V) (min)

800

Drain Current (A) (nom)

1

ECCN (US)

EAR99

Country of Origin

THAILAND

VIPER37HE

Package

SDIP 10

Packing Type

Tube

Budgetary Price (US$)*/Qty

0.485 / 1k

Distributor availability ofVIPER37HE

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3156 1 Order Now
MOUSER WORLDWIDE 1707 1 Order Now

Distributor reported inventory date: 2020-07-08

Distributor Name

DIGIKEY

Stock

3156

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

1707

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-08

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.485 / 1k

RDS(on) (Ω) (max)

4.5

Transistor Breakdown Voltage (V) (min)

800

Drain Current (A) (nom)

1

ECCN (US)

EAR99

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