ST Life.augmented

VIPER28

VIPerPlus family: fixed frequency high performance off line high voltage converter
  • active Active

The device is an off-line converter with an 800 V rugged power section, a PWM control, two levels of over-current protection, over-voltage 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 help to meet the standby energy saving regulations. Advance frequency jittering reduces EMI filter cost. The extra power timer allows the management of output peak power for a designed time window.

The high voltage start-up circuit is embedded in the device.

pdf Please read
Errata Sheet
pdf Download
Datasheet

Key Features

  • 800 V avalanche rugged power section
  • PWM operation with adjustable limiting current
  • 30 mW stand-by power at 265 Vac
  • Operating frequency:
  • 60 kHz for L type
  • 115 kHz for H type
  • Frequency jittering for low EMC
  • Output overvoltage protection
  • High primary current protection (2nd OCP)
  • Extra power timer for peak current management
  • On-board soft-start
  • Safe auto-restart after a fault condition
  • Hysteretic thermal shutdown

Circuit Diagram

Design Resources

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Technical Documentation

Product Specifications

Description Version Size
pdf
DS5927: Off-line high voltage converters
5.0 1,128 KB

Application Notes

Description Version Size
pdf
AN2950: EVLVIPER28L-10W: 5 V/10 W, 60 kHz isolated flyback with extra power management
1.0 1,804 KB

Presentations & Training Material

Presentations

Description Version Size
pdf
ST products and solutions for solar energy
1.0.0 2,135 KB

Related Tools and Software

Related Tools and Software

Part Number Description
EVLVIPER28L-10W EVLVIPER28L-10W: 5 V/10 W, 60 kHz isolated flyback with extra power management
STEVAL-ISA125V1 5 V/10 W, 60 kHz isolated flyback with extra power management based on the VIPer28L
STEVAL-ISA126V1 5 V-2 A, 115 kHz flyback with temporary extra-power management based on the VIPER28HN

Publications and Collaterals

Brochure

Description Version Size
pdf
VIPerPlus
1,167 KB

Sample & Buy

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Part Number Marketing StatusPackagePacking TypeRDS(on) (max) Transistor Breakdown Voltage (min) Drain Current (nom) Order From STUnit Price (US$)*
@ 1000
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
VIPER28HDActiveSO-16Tube7800.8-.554Distributor reported inventory date: 2014-09-18
Distributor NameRegionStockMin. order
MOUSEROrder NowWORLDWIDE9311
Ecopack2PDF
XML
VIPER28HDTRActiveSO-16Tape And Reel7800.8-.554Distributor reported inventory date: 2014-09-18
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA25002500
FUTUREOrder NowWORLDWIDE25002500
MOUSEROrder NowWORLDWIDE24601
Ecopack2PDF
XML
VIPER28HNActivePDIP 7Tube7800.8Free Samples.554Distributor reported inventory date: 2014-09-18
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA20002000
ARROWOrder NowEUROPE40000
Farnell Element14Order NowEUROPE451
DIGIKEYOrder NowWORLDWIDE24041
MOUSEROrder NowWORLDWIDE23911
Ecopack2 (**)PDF
XML
VIPER28LDActiveSO-16Tube7800.8-.554No availability reported, please contact our Sales officeEcopack2PDF
XML
VIPER28LDTRActiveSO-16Tape And Reel7800.8-.554No availability reported, please contact our Sales officeEcopack2PDF
XML
VIPER28LNActivePDIP 7Tube7800.8Free Samples.554Distributor reported inventory date: 2014-09-18
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA20002000
P&SOrder NowASIA/PACIFIC5001
ARROWOrder NowEUROPE9840
DIGIKEYOrder NowWORLDWIDE5751
Ecopack2 (**)PDF
XML

(*) 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
(**) 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.
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