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

Product overview

Description

The VIPER31 device is a high-voltage converter that smartly integrates an 800 V avalanche rugged power MOSFET with PWM current-mode control. The 800 V breakdown allows extended input voltage range to be applied, as well as to reduce the size of the DRAIN snubber circuit. The IC can meet the most stringent energy-saving standards as it has very low consumption and operates in pulse frequency modulation at light load. Overvoltage and undervoltage protections with separate and settable intervention thresholds are available at OVP and UVP pins respectively. UVP can also be used as a disabling input for the entire SMPS, with ultra-low residual input power consumption. Integrated HV startup, sense FET, error amplifier and oscillator with frequency jitter allow a complete application to be designed with a minimum component count. Flyback, buck and buck boost topologies are supported.
  • All features

    • 800 V avalanche-rugged power MOSFET to cover ultra-wide VAC input range
    • Embedded HV startup and sense FET
    • Current mode PWM controller
    • Drain current limit protection (OCP):
      • 710 mA (VIPER317)
      • 850 mA (VIPER318)
      • 990 mA (VIPER319)
    • Wide supply voltage range: 4.5 V to 30 V
      • < 20 mW @ 230 VAC in no-load;
      • < 430 mW @ 230 VAC, 25 0mW output load
    • Jittered switching frequency reduces the EMI filter cost:
      • 30 kHz ± 7% (type X)
      • 60 kHz ± 7% (type L)
      • 132 kHz ±7% (type H)
    • Embedded E/A with 1.2 V reference
    • Built-in soft-start for improved system reliability
    • Protections with automatic restart:
      • overload/short-circuit (OLP)
      • thermal shutdown
      • overvoltage
    • Protections without automatic restart:
      • pulse-skip protection to avoid flux runaway
      • undervoltage/disable
      • max. duty cycle

eDesignSuite

eDesignSuite is a comprehensive set of easy-to-use design-aid utilities ready to help you streamline the system development process with a wide range of ST products.

Power Supply Design Tool

SMPS design, by topology, by type and by product
PFC design with analog and digitial control
Supports various PCB configurations
Power Supply
Choose type:
Input Specification
Input Specification
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
V
this option is required
A
this option is required
Output Power: 0

You might also like...

All tools & software

    • Part number
      Status
      Description
      Type
      Supplier

      STEVAL-VP318L1F

      Active

      15 V / 1.2 A SSR Flyback converter based on VIPer318L

      AC-DC Converter ST
      STEVAL-VP318L1F

      Description:

      15 V / 1.2 A SSR Flyback converter based on VIPer318L

      STEVAL-VP318L2F

      Active

      15 V/1.2 A isolated PSR Flyback converter based on VIPER31

      AC-DC Converter ST
      STEVAL-VP318L2F

      Description:

      15 V/1.2 A isolated PSR Flyback converter based on VIPER31

      STEVAL-VP319X1B

      Active

      5 V / 0.6 A Buck converter based on VIPER319X

      AC-DC Converter ST
      STEVAL-VP319X1B

      Description:

      5 V / 0.6 A Buck converter based on VIPER319X

EDA Symbols, Footprints and 3D Models

STMicroelectronics - VIPER31

Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.

Symbols

Symbols

Footprints

Footprints

3D model

3D models

Quality and Reliability

Part Number RoHS Compliance Grade Grade Material Declaration**
VIPER317HDTR
Ecopack3
Industrial
VIPER317LDTR
Ecopack3
Industrial
VIPER318HDTR
Ecopack3
Industrial
VIPER318LDTR
Ecopack3
Industrial
VIPER318XDTR
Ecopack3
Industrial
VIPER319HDTR
Ecopack3
Industrial
VIPER319LDTR
Ecopack3
Industrial
VIPER319XDTR
Ecopack3
Industrial

VIPER317HDTR

Package:

Industrial

Material Declaration**:

RoHS Compliance Grade

Ecopack3

Grade

Industrial

VIPER317LDTR

Package:

Industrial

Material Declaration**:

RoHS Compliance Grade

Ecopack3

Grade

Industrial

VIPER318HDTR

Package:

Industrial

Material Declaration**:

RoHS Compliance Grade

Ecopack3

Grade

Industrial

VIPER318LDTR

Package:

Industrial

Material Declaration**:

RoHS Compliance Grade

Ecopack3

Grade

Industrial

VIPER318XDTR

Package:

Industrial

Material Declaration**:

RoHS Compliance Grade

Ecopack3

Grade

Industrial

VIPER319HDTR

Package:

Industrial

Material Declaration**:

RoHS Compliance Grade

Ecopack3

Grade

Industrial

VIPER319LDTR

Package:

Industrial

Material Declaration**:

RoHS Compliance Grade

Ecopack3

Grade

Industrial

VIPER319XDTR

Package:

Industrial

Material Declaration**:

RoHS Compliance Grade

Ecopack3

Grade

Industrial

(**) 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

Swipe or click the button to explore more details Don't show this again
Part Number
Order from distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Budgetary Price (US$)*/Qty
R<sub>DS(on)</sub> (&#937;) (max)
Transistor Breakdown Voltage (V) (min)
Drain Current (A) (nom)
Country of Origin
min
max
VIPER319XDTR Available at 4 distributors

Distributor availability ofVIPER319XDTR

Distributor Name
Region Stock Min. Order Third party link
COMPEL EUROPE 448 1 Buy from Distributor
RS COMPONENTS EUROPE 870 1 Buy from Distributor
FUTURE WORLDWIDE 30 0 Buy from Distributor
ANGLIA Live EUROPE 10 1 Buy from Distributor

Distributor reported inventory date: 2022-08-05

Distributor Name

COMPEL

Stock

448

Min.Order

1

RS COMPONENTS

Stock

870

Min.Order

1

FUTURE

Stock

30

Min.Order

0

Region

WORLDWIDE Buy from Distributor

ANGLIA Live

Stock

10

Min.Order

1

Distributor reported inventory date: 2022-08-05

Active
EAR99 NEC Tape and Reel SO-16 -40 125

3.5

800

0.85

THAILAND

VIPER319HDTR Available at 2 distributors

Distributor availability ofVIPER319HDTR

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 200 1 Buy from Distributor
ANGLIA Live EUROPE 10 1 Buy from Distributor

Distributor reported inventory date: 2022-08-05

Distributor Name

MOUSER

Stock

200

Min.Order

1

Region

WORLDWIDE Buy from Distributor

ANGLIA Live

Stock

10

Min.Order

1

Distributor reported inventory date: 2022-08-05

Active
EAR99 NEC Tape and Reel SO-16 -40 125

3.5

800

0.85

THAILAND

VIPER318XDTR Available at 5 distributors

Distributor availability ofVIPER318XDTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2500 1 Buy from Distributor
RS COMPONENTS EUROPE 100 1 Buy from Distributor
MOUSER WORLDWIDE 497 1 Buy from Distributor
Farnell Element14 EUROPE 180 1 Buy from Distributor
ANGLIA Live EUROPE 10 1 Buy from Distributor

Distributor reported inventory date: 2022-08-05

Distributor Name

DIGIKEY

Stock

2500

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

100

Min.Order

1

MOUSER

Stock

497

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

180

Min.Order

1

ANGLIA Live

Stock

10

Min.Order

1

Distributor reported inventory date: 2022-08-05

Active
EAR99 NEC Tape and Reel SO-16 -40 125

3.5

800

0.85

THAILAND

VIPER318HDTR Available at 3 distributors

Distributor availability ofVIPER318HDTR

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 774 1 Buy from Distributor
Farnell Element14 EUROPE 80 1 Buy from Distributor
ANGLIA Live EUROPE 10 1 Buy from Distributor

Distributor reported inventory date: 2022-08-05

Distributor Name

MOUSER

Stock

774

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

80

Min.Order

1

ANGLIA Live

Stock

10

Min.Order

1

Distributor reported inventory date: 2022-08-05

Active
EAR99 NEC Tape and Reel SO-16 -40 125

3.5

800

0.85

THAILAND

VIPER318LDTR Available at 5 distributors

Distributor availability ofVIPER318LDTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 757 1 Buy from Distributor
COMPEL EUROPE 4 1 Buy from Distributor
RS COMPONENTS EUROPE 380 1 Buy from Distributor
MOUSER WORLDWIDE 357 1 Buy from Distributor
ANGLIA Live EUROPE 10 1 Buy from Distributor

Distributor reported inventory date: 2022-08-05

Distributor Name

DIGIKEY

Stock

757

Min.Order

1

Region

WORLDWIDE Buy from Distributor

COMPEL

Stock

4

Min.Order

1

RS COMPONENTS

Stock

380

Min.Order

1

MOUSER

Stock

357

Min.Order

1

Region

WORLDWIDE Buy from Distributor

ANGLIA Live

Stock

10

Min.Order

1

Distributor reported inventory date: 2022-08-05

Active
EAR99 NEC Tape and Reel SO-16 -40 125

3.5

800

0.85

THAILAND

VIPER317LDTR Available at 3 distributors

Distributor availability ofVIPER317LDTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1935 1 Buy from Distributor
MOUSER WORLDWIDE 8 1 Buy from Distributor
ANGLIA Live EUROPE 10 1 Buy from Distributor

Distributor reported inventory date: 2022-08-05

Distributor Name

DIGIKEY

Stock

1935

Min.Order

1

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

8

Min.Order

1

Region

WORLDWIDE Buy from Distributor

ANGLIA Live

Stock

10

Min.Order

1

Distributor reported inventory date: 2022-08-05

Active
EAR99 NEC Tape and Reel SO-16 -40 125

3.5

800

0.85

THAILAND

VIPER317HDTR Available at 2 distributors

Distributor availability ofVIPER317HDTR

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 290 1 Buy from Distributor
ANGLIA Live EUROPE 10 1 Buy from Distributor

Distributor reported inventory date: 2022-08-02

Distributor Name

RS COMPONENTS

Stock

290

Min.Order

1

ANGLIA Live

Stock

10

Min.Order

1

Distributor reported inventory date: 2022-08-02

Active
EAR99 NEC Tape and Reel SO-16 -40 125

3.5

800

0.85

THAILAND

VIPER319LDTR Available at 1 distributors

Distributor availability ofVIPER319LDTR

Distributor Name
Region Stock Min. Order Third party link
ANGLIA Live EUROPE 10 1 Buy from Distributor

Distributor reported inventory date: 2022-08-02

Distributor Name

ANGLIA Live

Stock

10

Min.Order

1

Distributor reported inventory date: 2022-08-02

Active
EAR99 NEC Tape and Reel SO-16 -40 125

3.5

800

0.85

THAILAND

VIPER319XDTR Active

Package:
SO-16
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

VIPER319XDTR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

RDS(on) (Ω) (max):

3.5

Transistor Breakdown Voltage (V) (min):

800

Drain Current (A) (nom):

0.85

Country of Origin:

THAILAND

Distributor availability ofVIPER319XDTR

Distributor Name
Region Stock Min. Order Third party link
COMPEL EUROPE 448 1 Buy from Distributor
RS COMPONENTS EUROPE 870 1 Buy from Distributor
FUTURE WORLDWIDE 30 0 Buy from Distributor
ANGLIA Live EUROPE 10 1 Buy from Distributor

Distributor reported inventory date: 2022-08-05

Distributor Name

COMPEL

Stock

448

Min.Order

1

RS COMPONENTS

Stock

870

Min.Order

1

FUTURE

Stock

30

Min.Order

0

Region

WORLDWIDE Buy from Distributor

ANGLIA Live

Stock

10

Min.Order

1

Distributor reported inventory date: 2022-08-05

VIPER319HDTR Active

Package:
SO-16
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

VIPER319HDTR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

RDS(on) (Ω) (max):

3.5

Transistor Breakdown Voltage (V) (min):

800

Drain Current (A) (nom):

0.85

Country of Origin:

THAILAND

Distributor availability ofVIPER319HDTR

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 200 1 Buy from Distributor
ANGLIA Live EUROPE 10 1 Buy from Distributor

Distributor reported inventory date: 2022-08-05

Distributor Name

MOUSER

Stock

200

Min.Order

1

Region

WORLDWIDE Buy from Distributor

ANGLIA Live

Stock

10

Min.Order

1

Distributor reported inventory date: 2022-08-05

VIPER318XDTR Active

Package:
SO-16
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

VIPER318XDTR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

RDS(on) (Ω) (max):

3.5

Transistor Breakdown Voltage (V) (min):

800

Drain Current (A) (nom):

0.85

Country of Origin:

THAILAND

Distributor availability ofVIPER318XDTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2500 1 Buy from Distributor
RS COMPONENTS EUROPE 100 1 Buy from Distributor
MOUSER WORLDWIDE 497 1 Buy from Distributor
Farnell Element14 EUROPE 180 1 Buy from Distributor
ANGLIA Live EUROPE 10 1 Buy from Distributor

Distributor reported inventory date: 2022-08-05

Distributor Name

DIGIKEY

Stock

2500

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

100

Min.Order

1

MOUSER

Stock

497

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

180

Min.Order

1

ANGLIA Live

Stock

10

Min.Order

1

Distributor reported inventory date: 2022-08-05

VIPER318HDTR Active

Package:
SO-16
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

VIPER318HDTR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

RDS(on) (Ω) (max):

3.5

Transistor Breakdown Voltage (V) (min):

800

Drain Current (A) (nom):

0.85

Country of Origin:

THAILAND

Distributor availability ofVIPER318HDTR

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 774 1 Buy from Distributor
Farnell Element14 EUROPE 80 1 Buy from Distributor
ANGLIA Live EUROPE 10 1 Buy from Distributor

Distributor reported inventory date: 2022-08-05

Distributor Name

MOUSER

Stock

774

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

80

Min.Order

1

ANGLIA Live

Stock

10

Min.Order

1

Distributor reported inventory date: 2022-08-05

VIPER318LDTR Active

Package:
SO-16
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

VIPER318LDTR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

RDS(on) (Ω) (max):

3.5

Transistor Breakdown Voltage (V) (min):

800

Drain Current (A) (nom):

0.85

Country of Origin:

THAILAND

Distributor availability ofVIPER318LDTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 757 1 Buy from Distributor
COMPEL EUROPE 4 1 Buy from Distributor
RS COMPONENTS EUROPE 380 1 Buy from Distributor
MOUSER WORLDWIDE 357 1 Buy from Distributor
ANGLIA Live EUROPE 10 1 Buy from Distributor

Distributor reported inventory date: 2022-08-05

Distributor Name

DIGIKEY

Stock

757

Min.Order

1

Region

WORLDWIDE Buy from Distributor

COMPEL

Stock

4

Min.Order

1

RS COMPONENTS

Stock

380

Min.Order

1

MOUSER

Stock

357

Min.Order

1

Region

WORLDWIDE Buy from Distributor

ANGLIA Live

Stock

10

Min.Order

1

Distributor reported inventory date: 2022-08-05

VIPER317LDTR Active

Package:
SO-16
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

VIPER317LDTR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

RDS(on) (Ω) (max):

3.5

Transistor Breakdown Voltage (V) (min):

800

Drain Current (A) (nom):

0.85

Country of Origin:

THAILAND

Distributor availability ofVIPER317LDTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1935 1 Buy from Distributor
MOUSER WORLDWIDE 8 1 Buy from Distributor
ANGLIA Live EUROPE 10 1 Buy from Distributor

Distributor reported inventory date: 2022-08-05

Distributor Name

DIGIKEY

Stock

1935

Min.Order

1

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

8

Min.Order

1

Region

WORLDWIDE Buy from Distributor

ANGLIA Live

Stock

10

Min.Order

1

Distributor reported inventory date: 2022-08-05

VIPER317HDTR Active

Package:
SO-16
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

VIPER317HDTR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

RDS(on) (Ω) (max):

3.5

Transistor Breakdown Voltage (V) (min):

800

Drain Current (A) (nom):

0.85

Country of Origin:

THAILAND

Distributor availability ofVIPER317HDTR

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 290 1 Buy from Distributor
ANGLIA Live EUROPE 10 1 Buy from Distributor

Distributor reported inventory date: 2022-08-02

Distributor Name

RS COMPONENTS

Stock

290

Min.Order

1

ANGLIA Live

Stock

10

Min.Order

1

Distributor reported inventory date: 2022-08-02

VIPER319LDTR Active

Package:
SO-16
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

VIPER319LDTR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

RDS(on) (Ω) (max):

3.5

Transistor Breakdown Voltage (V) (min):

800

Drain Current (A) (nom):

0.85

Country of Origin:

THAILAND

Distributor availability ofVIPER319LDTR

Distributor Name
Region Stock Min. Order Third party link
ANGLIA Live EUROPE 10 1 Buy from Distributor

Distributor reported inventory date: 2022-08-02

Distributor Name

ANGLIA Live

Stock

10

Min.Order

1

Distributor reported inventory date: 2022-08-02

Swipe or click the button to explore more details Don't show this again

(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors