VIPER26
Active
Education Design Win
Fixed frequency VIPer plus family

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Product overview

Description

The VIPER26 device is a smart high voltage converter that integrates an 800 V avalanche-rugged power MOSFET with PWM current mode control. The power MOSFET with 800 V breakdown voltage allows an extended input voltage range to be applied, as well as the size of the DRAIN snubber circuit to be reduced.

This IC meets the most stringent energy-saving standards with very low consumption and burst mode operation under light load.

The design of flyback, buck and buck boost converters is supported. The integrated HV startup, sense-FET, error amplifier and oscillator with jitter allow complete application designs with a minimum number of components.

  • All features

    • 800 V avalanche rugged power MOSFET allowing wide range VAC input range to be covered
    • Embedded HV startup and sense-FET
    • Current mode PWM controller
    • Minimized system input power consumption:
      • Less than 30 mW @ 230 VAC in no-load condition
      • Less than 400 mW @ 230 VAC with 250 mW load
    • Limiting current with adjustable set point
    • Jittered switching frequency to reduce the EMI filter cost:
      • 60 kHz ±4 kHz (L type)
      • 115 kHz ±8 kHz (H type)
    • Embedded error amplifier
    • Hysteretic thermal shutdown
    • Built-in soft-start for improved system reliability
    • Protections with automatic restart: overload/short-circuit (OLP), feedback loop disconnection

Circuit Diagram

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 Management Design Center

Thermal-electrical Simulators for Components

Signal Conditioning Design Tool

NFC/RFID Calculators

Choose design tool:

Power Management Design Center

Power Supply Design Tool

• SMPS design, by topology, by type and by product
• PFC design with analog and digitial control
• Supports various PCB configurations
Choose type:
DC/DC
AC/DC
Solar Battery Charger

Power Management Design Center

LED Lighting Design Tool

• Handles AC-DC and DC-DC design in common topologies
• Displays interactive and annotated schematic
• Provides current/voltage graphs, Bode plots, efficiency curves and power-loss data
Choose type:
DC/DC
AC/DC

Power Management Design Center

Digital Power Workbench

• Provides a step-by-step optimized design of power section and control loop
• Generates the STM32Cube embedded software package for custom applications and allows firmware project generation, compatible with multiple STM32 IDEs

Power Management Design Center

Power Tree Designer

• Specify input/output power for each node in the tree
• Check for consistency
• Design each individual node
Choose design tool:

Thermal-electrical Simulators for Components

STPOWER Studio

• Supports long mission profiles
• Provides power loss and temperature graphs
• Helps define heatsink thermal properties

Thermal-electrical Simulators for Components

PCB Thermal Simulator

• Thermal analysis of a PCB from Gerber files.
• Possibility to add heat sources, heat sinks, copper areas and thermal paths.
• Powerful server-side engine for rendering and simulation.
• Thermal results shown graphically via 2D table.

Thermal-electrical Simulators for Components

AC Switches Simulator

• Select ratings and application waveforms
• Get junction temperature and blocking voltage graphs
• Search and sort suitable devices

Thermal-electrical Simulators for Components

Rectifier Diodes Simulator

• Select ratings and application waveforms
• Estimate power losses
• Search and sort suitable devices

Thermal-electrical Simulators for Components

Twister Sim

• Help select the right ViPOWER Automotive power device
• Supports load-compatibility, wiring harness optimization, fault condition impact and diagnostic analysis
• Supports various PCB configurations

Thermal-electrical Simulators for Components

TVS Simulator

• Specify system ratings and surge waveform
• Search and sort suitable devices

Thermal-electrical Simulators for Components

Estimate

• Build simple schematics and firmware inputs in minutes
• Quickly generate reliable estimates of battery life, system power consumption and bill of materials costs
Choose design tool:

Signal Conditioning Design Tool

Active Filters

• Handles multi-stage-designs and common topologies
• Returns circuit component values
• Provides gain, phase and group delay graphs
• Low Pass, High Pass and Band Pass

Signal Conditioning Design Tool

Comparators

• Handles most common configurations
• Returns circuit components values
• Provides I/O signal waveforms
• Inverting, Non Inverting, Window

Signal Conditioning Design Tool

Low side Current Sensing

• Returns circuit component values
• Provides current error graphs

Signal Conditioning Design Tool

High side Current Sensing

• Provides current error graphs.
• Help to select the right High side current sensing and shunt devices.
Choose design tool:

NFC/RFID Calculators

NFC Inductance

• Input geometry and substrate properties
• Get antenna impedance

NFC/RFID Calculators

UHF Link Budget

• Enter forward and reverse link characteristics
• The tool returns link budget estimate

NFC/RFID Calculators

NFC Tuning Circuit

• Enter antenna parameter and matching target
• Select the topology of the matching network
• The tool returns component values for the desired design targets

EDA Symbols, Footprints and 3D Models

STMicroelectronics - VIPER26

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.

Please select one model supplier :

Symbols

Symbols

Footprints

Footprints

3D model

3D models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Longevity Commitment Longevity Starting Date Material Declaration**
VIPER26HD
Active
SO-16 Industrial Ecopack2 10 2025-09-19T00:00:00.000+02:00
VIPER26HDTR
Active
SO-16 Industrial Ecopack2 10 2025-09-19T00:00:00.000+02:00
VIPER26HN
Active
PDIP 7 Industrial Ecopack2 10 2025-09-19T00:00:00.000+02:00
VIPER26LD
Active
SO-16 Industrial Ecopack2 10 2025-09-19T00:00:00.000+02:00
VIPER26LDTR
Active
SO-16 Industrial Ecopack2 10 2025-09-19T00:00:00.000+02:00
VIPER26LN
Active
PDIP 7 Industrial Ecopack2 10 2025-09-19T00:00:00.000+02:00

VIPER26HD

Package:

SO-16

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

VIPER26HDTR

Package:

SO-16

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

VIPER26HN

Package:

PDIP 7

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PDIP 7

Grade

Industrial

RoHS Compliance Grade

Ecopack2

VIPER26LD

Package:

SO-16

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

VIPER26LDTR

Package:

SO-16

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

VIPER26LN

Package:

PDIP 7

Material Declaration**:

PDF XML

Marketing Status

Active

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.

Sample & Buy

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RoHS
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ECCN (US)
ECCN (EU)
Operating temperature (°C)
Transistor Breakdown Voltage (V) (min)
Drain Current (A) (nom)
RDS(on) (Ω) (max)
min
max
VIPER26LN

Distributor availability of VIPER26LN

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No availability of distributors reported, please contact our sales office

VIPER26LD

Distributor availability of VIPER26LD

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No availability of distributors reported, please contact our sales office

VIPER26HN

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No availability of distributors reported, please contact our sales office

VIPER26LDTR

Distributor availability of VIPER26LDTR

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Distributor reported inventory date:

No availability of distributors reported, please contact our sales office

VIPER26HD

Distributor availability of VIPER26HD

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Distributor reported inventory date:

No availability of distributors reported, please contact our sales office

VIPER26HDTR

Distributor availability of VIPER26HDTR

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office

VIPER26LN Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

VIPER26LN

Operating Temperature (°C)

Min:

Max:

Transistor Breakdown Voltage (V) (min):

800

Drain Current (A) (nom):

0.7

RDS(on) (Ω) (max):

7

Distributor Name

Distributor reported inventory date:

VIPER26LD Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

VIPER26LD

Operating Temperature (°C)

Min:

Max:

Transistor Breakdown Voltage (V) (min):

800

Drain Current (A) (nom):

0.7

RDS(on) (Ω) (max):

7

Distributor Name

Distributor reported inventory date:

VIPER26HN Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

VIPER26HN

Operating Temperature (°C)

Min:

Max:

Transistor Breakdown Voltage (V) (min):

800

Drain Current (A) (nom):

0.7

RDS(on) (Ω) (max):

7

Distributor Name

Distributor reported inventory date:

VIPER26LDTR Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

VIPER26LDTR

Operating Temperature (°C)

Min:

Max:

Transistor Breakdown Voltage (V) (min):

800

Drain Current (A) (nom):

0.7

RDS(on) (Ω) (max):

7

Distributor Name

Distributor reported inventory date:

VIPER26HD Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

VIPER26HD

Operating Temperature (°C)

Min:

Max:

Transistor Breakdown Voltage (V) (min):

800

Drain Current (A) (nom):

0.7

RDS(on) (Ω) (max):

7

Distributor Name

Distributor reported inventory date:

VIPER26HDTR Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

VIPER26HDTR

Operating Temperature (°C)

Min:

Max:

Transistor Breakdown Voltage (V) (min):

800

Drain Current (A) (nom):

0.7

RDS(on) (Ω) (max):

7

Distributor Name

Distributor reported inventory date:

(*) 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