VIPER25

Active

VIPerPlus family: Quasi-resonant high performance off line high voltage converter

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  • The device is an off-line converter with an 800 V rugged power section, a PWM control, double levels of overcurrent protection, overvoltage and overload protections, hysteretic thermal protection, soft-start and safe auto-restart after any fault condition removal. Burst mode operation and device very low consumption helps to meet the standby energy saving regulations. The quasi-resonant feature reduces EMI filter cost. Brown-out and brown-in 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 start-up circuit is embedded in the device.

    Key Features

    • 800 V avalanche rugged power section
    • Quasi-resonant (QR) control for valley switching operation
    • Standby power < 50 mW at 265 Vac
    • Limiting current with adjustable set point
    • Adjustable and accurate overvoltage protection
    • On-board soft-start
    • Safe auto-restart after a fault condition
    • Hysteretic thermal shutdown

Circuit Diagram

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      12 V/10 W isolated flyback converter based on VIPer25HD

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      STEVAL-ISA162V1

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EDA Symbols, Footprints and 3D Models

STMicroelectronics - VIPER25

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Footprints

Footprints

3D model

3D models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
VIPER25HD
Active
SO-16 Industrial Ecopack2
VIPER25HDTR
Active
SO-16 Industrial Ecopack2
VIPER25HN
NRND
PDIP 7 Industrial Ecopack2
VIPER25LD
Active
SO-16 Industrial Ecopack2
VIPER25LDTR
Active
SO-16 Industrial Ecopack2
VIPER25LN
NRND
PDIP 7 Industrial Ecopack2

VIPER25HD

Package:

SO-16

Material Declaration**:

Marketing Status

Active

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

VIPER25HDTR

Package:

SO-16

Material Declaration**:

Marketing Status

Active

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

VIPER25HN

Package:

PDIP 7

Material Declaration**:

PDF XML

Marketing Status

NRND

Package

PDIP 7

Grade

Industrial

RoHS Compliance Grade

Ecopack2

VIPER25LD

Package:

SO-16

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

VIPER25LDTR

Package:

SO-16

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

VIPER25LN

Package:

PDIP 7

Material Declaration**:

Marketing Status

NRND

Package

PDIP 7

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.

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.

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
VIPER25HD Available at 1 distributors

Distributor availability ofVIPER25HD

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 1947 1 Order Now

Distributor reported inventory date: 2020-11-23

Distributor Name

MOUSER

Stock

1947

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-11-23

Buy Direct
Active
EAR99 NEC Tube SO-16 - - 0.394 / 1k
MORE INFO

RDS(on) (Ω) (max):

7

Transistor Breakdown Voltage (V) (min):

800

Drain Current (A) (nom):

0.7

Country of Origin:

THAILAND

VIPER25LD Available at 3 distributors

Distributor availability ofVIPER25LD

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1997 1 Order Now
MOUSER WORLDWIDE 511 1 Order Now
Farnell Element14 EUROPE 1991 1 Order Now

Distributor reported inventory date: 2020-11-23

Distributor Name

DIGIKEY

Stock

1997

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

511

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1991

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-11-23

Buy Direct
Active
EAR99 NEC Tube SO-16 - - 0.394 / 1k
MORE INFO

RDS(on) (Ω) (max):

7

Transistor Breakdown Voltage (V) (min):

800

Drain Current (A) (nom):

0.7

Country of Origin:

THAILAND

VIPER25HDTR No availability of distributors reported, please contact our sales office Buy Direct
Active
EAR99 NEC Tape And Reel SO-16 - - 0.394 / 1k
MORE INFO

RDS(on) (Ω) (max):

7

Transistor Breakdown Voltage (V) (min):

800

Drain Current (A) (nom):

0.7

Country of Origin:

THAILAND

VIPER25HN Available at 1 distributors

Distributor availability ofVIPER25HN

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 99 1 Order Now

Distributor reported inventory date: 2020-11-23

Distributor Name

MOUSER

Stock

99

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-11-23

Buy Direct
NRND
EAR99 NEC Tube PDIP 7 - - 0.415 / 1k
MORE INFO

RDS(on) (Ω) (max):

7

Transistor Breakdown Voltage (V) (min):

800

Drain Current (A) (nom):

0.7

Country of Origin:

CHINA

VIPER25LDTR No availability of distributors reported, please contact our sales office Buy Direct
Active
EAR99 NEC Tape And Reel SO-16 - - 0.394 / 1k
MORE INFO

RDS(on) (Ω) (max):

7

Transistor Breakdown Voltage (V) (min):

800

Drain Current (A) (nom):

0.7

Country of Origin:

THAILAND

VIPER25LN Available at 3 distributors

Distributor availability ofVIPER25LN

Distributor Name
Region Stock Min. Order Third party link
P&S ASIA/PACIFIC 50 1 Order Now
MOUSER WORLDWIDE 1986 1 Order Now
Farnell Element14 EUROPE 22 1 Order Now

Distributor reported inventory date: 2020-11-23

Distributor Name

P&S

Stock

50

Min.Order

1

Region

ASIA/PACIFIC Order Now

MOUSER

Stock

1986

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

22

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-11-23

Buy Direct
NRND
EAR99 NEC Tube PDIP 7 - - 0.415 / 1k
MORE INFO

RDS(on) (Ω) (max):

7

Transistor Breakdown Voltage (V) (min):

800

Drain Current (A) (nom):

0.7

Country of Origin:

CHINA

VIPER25HD

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.394 / 1k

Distributor availability ofVIPER25HD

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 1947 1 Order Now

Distributor reported inventory date: 2020-11-23

Distributor Name

MOUSER

Stock

1947

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-11-23

ECCN (EU)

NEC

Packing Type

Tube

Package

SO-16

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

0.394 / 1k

RDS(on) (Ω) (max)

7

Transistor Breakdown Voltage (V) (min)

800

Drain Current (A) (nom)

0.7

Country of Origin

THAILAND

VIPER25LD

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.394 / 1k

Distributor availability ofVIPER25LD

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1997 1 Order Now
MOUSER WORLDWIDE 511 1 Order Now
Farnell Element14 EUROPE 1991 1 Order Now

Distributor reported inventory date: 2020-11-23

Distributor Name

DIGIKEY

Stock

1997

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

511

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1991

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-11-23

ECCN (EU)

NEC

Packing Type

Tube

Package

SO-16

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

0.394 / 1k

RDS(on) (Ω) (max)

7

Transistor Breakdown Voltage (V) (min)

800

Drain Current (A) (nom)

0.7

Country of Origin

THAILAND

VIPER25HDTR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.394 / 1k

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SO-16

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

0.394 / 1k

RDS(on) (Ω) (max)

7

Transistor Breakdown Voltage (V) (min)

800

Drain Current (A) (nom)

0.7

Country of Origin

THAILAND

VIPER25HN

Marketing Status

NRND

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.415 / 1k

Distributor availability ofVIPER25HN

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 99 1 Order Now

Distributor reported inventory date: 2020-11-23

Distributor Name

MOUSER

Stock

99

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-11-23

ECCN (EU)

NEC

Packing Type

Tube

Package

PDIP 7

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

0.415 / 1k

RDS(on) (Ω) (max)

7

Transistor Breakdown Voltage (V) (min)

800

Drain Current (A) (nom)

0.7

Country of Origin

CHINA

VIPER25LDTR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.394 / 1k

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SO-16

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

0.394 / 1k

RDS(on) (Ω) (max)

7

Transistor Breakdown Voltage (V) (min)

800

Drain Current (A) (nom)

0.7

Country of Origin

THAILAND

VIPER25LN

Marketing Status

NRND

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.415 / 1k

Distributor availability ofVIPER25LN

Distributor Name
Region Stock Min. Order Third party link
P&S ASIA/PACIFIC 50 1 Order Now
MOUSER WORLDWIDE 1986 1 Order Now
Farnell Element14 EUROPE 22 1 Order Now

Distributor reported inventory date: 2020-11-23

Distributor Name

P&S

Stock

50

Min.Order

1

Region

ASIA/PACIFIC Order Now

MOUSER

Stock

1986

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

22

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-11-23

ECCN (EU)

NEC

Packing Type

Tube

Package

PDIP 7

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

0.415 / 1k

RDS(on) (Ω) (max)

7

Transistor Breakdown Voltage (V) (min)

800

Drain Current (A) (nom)

0.7

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