ST Life.augmented

VIPER27

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, 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 help to meet the standby energy saving regulations.

Advance frequency jittering reduces EMI filter cost. Brown-out 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.

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Errata Sheet
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Datasheet

Key Features

  • 800 V avalanche rugged power section
  • PWM operation with frequency jittering for low EMI
  • Operating frequency:
  • 60 kHz for L type
  • 115 kHz for H type
  • 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

Design Resources

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Technical Documentation

Product Specifications

Description Version Size
pdf
DS5960: Off-line high voltage converters
5.1 1,268 KB

Application Notes

Description Version Size
pdf
AN2929: Wide range [90 V - 265 V] input, 5 V - 12 W output VIPER27LN demonstration board with improved standby performance
2.0 1,479 KB
pdf
AN3011: Wide range input (90 - 265), single output (5 V-11 W) EVLVIP27H-12SB, VIPer27 demonstration board
1.1 1,800 KB
pdf
AN3203: EVL250W-ATX80PL: 250W ATX SMPS demonstration board
2.1 2,763 KB
pdf
AN3212: 5 W to 7 W high power factor offline LED driver based on VIPer devices
2.0 2,235 KB
pdf
AN3329: 170 W power supply with PFC and standby supply for flat TV using the L6564, L6599A, and Viper27LN
1.1 2,034 KB
pdf
AN3339: 185 W power supply with PFC and standby supply for LED TV using the L6564, L6599A, and VIPER27LN
2.0 1,561 KB

Design Notes & Tips

Description Version Size
pdf
DN0002: 10W off-line LED driver based on VIPER27
1.0 826 KB

Presentations & Training Material

Presentations

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

Hardware Resources

Board Manufacturing Specification

Description Version Size
zip
10WLED PCB Layout
1.0.0 142 KB

Related Tools and Software

Related Tools and Software

Part Number Description
EVL185W-LEDTV 185 W power supply with PFC and standby supply for LED TV using the L6564, L6599A, and VIPER27L
EVL250W-ATX80PL 250 W ATX SMPS demonstration board
STEVAL-ISA103V1 Wide range (90 V - 265 V) input, 5 V - 12 W output demonstration board with improved standby performance based on VIPER27LN
STEVAL-ISA122V1 Wide input-range, single-output 5 V / 11 W power supply demonstration board based on the VIPer27

Publications and Collaterals

Flyer

Description Version Size
pdf
High-efficiency ATX design using asymmetrical half-bridge topology
1.0.0 1,147 KB

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**
VIPER27HDActiveSO-16Tube7800.7-.513Distributor reported inventory date: 2014-10-24
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA5881000
Farnell Element14Order NowEUROPE1721
DIGIKEYOrder NowWORLDWIDE10001
MOUSEROrder NowWORLDWIDE10001
Ecopack2PDF
XML
VIPER27HDTRActiveSO-16Tape And Reel7800.7Free Samples.513Distributor reported inventory date: 2014-10-24
Distributor NameRegionStockMin. order
AVNETOrder NowAMERICA25000
Farnell Element14Order NowEUROPE25001
DIGIKEYOrder NowWORLDWIDE38851
FUTUREOrder NowWORLDWIDE25002500
MOUSEROrder NowWORLDWIDE24851
Ecopack2PDF
XML
VIPER27HNActivePDIP 7Tube7800.7Free Samples.513Distributor reported inventory date: 2014-10-24
Distributor NameRegionStockMin. order
ARROWOrder NowEUROPE3900
RUTRONIKOrder NowEUROPE265050
DIGIKEYOrder NowWORLDWIDE12711
MOUSEROrder NowWORLDWIDE15971
Ecopack2 (**)PDF
XML
VIPER27LDActiveSO-16Tube7800.7-.513Distributor reported inventory date: 2014-10-24
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA9601000
Farnell Element14Order NowEUROPE1101
Ecopack2PDF
XML
VIPER27LDTRActiveSO-16Tape And Reel7800.7Free Samples.513Distributor reported inventory date: 2014-10-24
Distributor NameRegionStockMin. order
AVNETOrder NowAMERICA25000
Farnell Element14Order NowEUROPE25001
RUTRONIKOrder NowEUROPE675002500
DIGIKEYOrder NowWORLDWIDE24081
FUTUREOrder NowWORLDWIDE25002500
MOUSEROrder NowWORLDWIDE23941
Ecopack2PDF
XML
VIPER27LNActivePDIP 7Tube7800.7Free Samples.513Distributor reported inventory date: 2014-10-24
Distributor NameRegionStockMin. order
P&SOrder NowASIA/PACIFIC7001
Farnell Element14Order NowEUROPE3881
RUTRONIKOrder NowEUROPE2085050
DIGIKEYOrder NowWORLDWIDE36241
MOUSEROrder NowWORLDWIDE8691
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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