VIPER38

Active

VIPerPlus family: Peak power fixed frequency high voltage converter

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  • The device is a high-voltage converter that smartly integrates an 800 V rugged power MOSFET with PWM current-mode control. The power MOSFET allows a very high input Vac to be applied, just limited from its breakdown voltage. This IC is capable of meeting more stringent energy-saving standards as it has very low consumption and operates in burst mode under light load.

    The device features an adjustable extra power timer (EPT) that enables the IC to sustain overload conditions for a few seconds.
    The integrated HV startup, sense FET and oscillator with jitter allow the advantage of using minimal components in the application.
    The device features high-level protections like dual-level OCP, output overvoltage, short-circuit, and thermal shutdown with hysteresis. After the removal of a fault condition, the IC is automatically restarted.

    Key Features

    • 800 V avalanche-rugged power MOSFET allowing ultra wide range input Vac to be achieved
    • Embedded HV start-up and sense FET
    • PWM current-mode controller
    • OCP with selectable threshold (IDlim) and 2nd OCP with higher value (IDMAX) to protect the IC from transformer saturation or short-circuit of the secondary diode
    • 30 mW no-load consumption at 230 Vac
    • Two operating frequencies:
      • 60 kHz (L type) or 115 kHz (H type)
    • Jittered frequency reduces the EMI
    • Extra power timer (EPT) blanks the overload current for few seconds
    • Output overvoltage protection with tight tolerance and digital noise filter
    • Soft-start reduces the stress during startup and increases IC lifetime
    • Automatic restart after a fault condition
    • Thermal shutdown increases system reliability and IC lifetime

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Related Applications

Lighting and Controls

Evaluation Tools

    • Part Number

      12 V, 15 W (20 W peak) isolated flyback converter based on the VIPER38LE

      8.4 W / 30 W peak power offline flyback converter using VIPER38HD

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS10100
      VIPerPlus family: peak power high-voltage converter
      3.0
      974.33 KB
      PDF
      DS10100

      VIPerPlus family: peak power high-voltage converter

    • Description Version Size Action
      AN4564
      Is a positive power supply mandatory for my application, or could a negative output work also?
      1.0
      384.04 KB
      PDF
      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
      AN4479
      12 V, 15 W peak 20 W isolated flyback converter based on VIPer38LE
      1.0
      1.08 MB
      PDF
      AN4924
      12 V, 8.4 W peak power 30 W isolated flyback converter using VIPer38HD
      1.0
      2.94 MB
      PDF
      AN4479

      12 V, 15 W peak 20 W isolated flyback converter based on VIPer38LE

      AN4924

      12 V, 8.4 W peak power 30 W isolated flyback converter using VIPer38HD

HW Model, CAD Libraries & SVD

    • Description Version Size Action
      VIPer38 spice model 1.0
      62.25 KB
      ZIP

      VIPer38 spice model

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**
VIPER38HD
Active
SO-16 Industrial Ecopack2
VIPER38HDTR
Active
SO-16 Industrial Ecopack2
VIPER38HE
Active
SDIP 10 Industrial Ecopack2
VIPER38LD
Active
SO-16 Industrial Ecopack2
VIPER38LDTR
Active
SO-16 Industrial Ecopack2
VIPER38LE
Active
SDIP 10 Industrial Ecopack2

VIPER38HD

Package:

SO-16

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

VIPER38HDTR

Package:

SO-16

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

VIPER38HE

Package:

SDIP 10

Material Declaration**:

Marketing Status

Active

Package

SDIP 10

Grade

Industrial

RoHS Compliance Grade

Ecopack2

VIPER38LD

Package:

SO-16

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

VIPER38LDTR

Package:

SO-16

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

VIPER38LE

Package:

SDIP 10

Material Declaration**:

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
VIPER38LD Available at 3 distributors

Distributor availability ofVIPER38LD

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 184 1 Order Now
RS COMPONENTS EUROPE 110 1 Order Now
MOUSER WORLDWIDE 2224 1 Order Now

Distributor reported inventory date: 2020-07-08

Distributor Name

DIGIKEY

Stock

184

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

110

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

2224

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-08

Get sample SO-16 Tube
Active
4.5 800 1.15 EAR99 THAILAND 0.464 / 1k
VIPER38LE Available at 1 distributors

Distributor availability ofVIPER38LE

Distributor Name
Region Stock Min. Order Third party link
COMPEL EUROPE 13 1 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

COMPEL

Stock

13

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-06

Buy now SDIP 10 Tube
Active
4.5 800 1.15 EAR99 CHINA 0.485 / 1k
VIPER38HD Available at 1 distributors

Distributor availability ofVIPER38HD

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 2254 1 Order Now

Distributor reported inventory date: 2020-07-08

Distributor Name

MOUSER

Stock

2254

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-08

Get sample SO-16 Tube
Active
4.5 800 1.15 EAR99 THAILAND 0.464 / 1k
VIPER38LDTR Available at 3 distributors

Distributor availability ofVIPER38LDTR

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 2600 1 Order Now
MOUSER WORLDWIDE 2462 1 Order Now
Farnell Element14 EUROPE 2646 1 Order Now

Distributor reported inventory date: 2020-07-08

Distributor Name

RS COMPONENTS

Stock

2600

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

2462

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2646

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 1.15 EAR99 THAILAND 0.464 / 1k
VIPER38HDTR Available at 2 distributors

Distributor availability ofVIPER38HDTR

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 1473 1 Order Now
Farnell Element14 EUROPE 2387 1 Order Now

Distributor reported inventory date: 2020-07-08

Distributor Name

MOUSER

Stock

1473

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2387

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 1.15 EAR99 THAILAND 0.464 / 1k
VIPER38HE Available at 1 distributors

Distributor availability ofVIPER38HE

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 2000 1 Order Now

Distributor reported inventory date: 2020-07-08

Distributor Name

MOUSER

Stock

2000

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-08

Get sample SDIP 10 Tube
Active
4.5 800 1.15 EAR99 CHINA 0.485 / 1k

VIPER38LD

Package

SO-16

Packing Type

Tube

Budgetary Price (US$)*/Qty

0.464 / 1k

Distributor availability ofVIPER38LD

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 184 1 Order Now
RS COMPONENTS EUROPE 110 1 Order Now
MOUSER WORLDWIDE 2224 1 Order Now

Distributor reported inventory date: 2020-07-08

Distributor Name

DIGIKEY

Stock

184

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

110

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

2224

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)

1.15

ECCN (US)

EAR99

Country of Origin

THAILAND

VIPER38LE

Package

SDIP 10

Packing Type

Tube

Budgetary Price (US$)*/Qty

0.485 / 1k

Distributor availability ofVIPER38LE

Distributor Name
Region Stock Min. Order Third party link
COMPEL EUROPE 13 1 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

COMPEL

Stock

13

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-06

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)

1.15

ECCN (US)

EAR99

Country of Origin

CHINA

VIPER38HD

Package

SO-16

Packing Type

Tube

Budgetary Price (US$)*/Qty

0.464 / 1k

Distributor availability ofVIPER38HD

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 2254 1 Order Now

Distributor reported inventory date: 2020-07-08

Distributor Name

MOUSER

Stock

2254

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)

1.15

ECCN (US)

EAR99

Country of Origin

THAILAND

VIPER38LDTR

Package

SO-16

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.464 / 1k

Distributor availability ofVIPER38LDTR

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 2600 1 Order Now
MOUSER WORLDWIDE 2462 1 Order Now
Farnell Element14 EUROPE 2646 1 Order Now

Distributor reported inventory date: 2020-07-08

Distributor Name

RS COMPONENTS

Stock

2600

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

2462

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2646

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)

1.15

ECCN (US)

EAR99

Country of Origin

THAILAND

VIPER38HDTR

Package

SO-16

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.464 / 1k

Distributor availability ofVIPER38HDTR

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 1473 1 Order Now
Farnell Element14 EUROPE 2387 1 Order Now

Distributor reported inventory date: 2020-07-08

Distributor Name

MOUSER

Stock

1473

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2387

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)

1.15

ECCN (US)

EAR99

Country of Origin

THAILAND

VIPER38HE

Package

SDIP 10

Packing Type

Tube

Budgetary Price (US$)*/Qty

0.485 / 1k

Distributor availability ofVIPER38HE

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 2000 1 Order Now

Distributor reported inventory date: 2020-07-08

Distributor Name

MOUSER

Stock

2000

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)

1.15

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