VIPerPlus family: Fixed frequency 12W high performance off line high voltage converter

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.

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

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circuit_diagram_15133_thumbnail.png

Design

Technical Documentation

Product Specifications
Description Version Size
DS5960 DS5960: Off-line high voltage converters 5.1 1 MB
Application Notes
Description Version Size
AN3329 AN3329: 170 W power supply with PFC and standby supply for flat TV using the L6564, L6599A, and Viper27LN 1.1 1 MB
AN3339 AN3339: 185 W power supply with PFC and standby supply for LED TV using the L6564, L6599A, and VIPER27LN 2.0 1 MB
AN3212 AN3212: 5 W to 7 W high power factor offline LED driver based on VIPer devices 2.0 2 MB
AN4583 AN4583: Cable set-top box SMPS adaptor using VIPER27 1.0 2 MB
AN3203 AN3203: EVL250W-ATX80PL: 250W ATX SMPS demonstration board 2.1 2 MB
AN4564 AN4564: Is a positive power supply mandatory for my application, or could a negative output work also? 1.0 384 KB
AN2929 AN2929: Wide range [90 V - 265 V] input, 5 V - 12 W output VIPER27LN demonstration board with improved standby performance 2.0 1 MB
AN3011 AN3011: Wide range input (90 - 265), single output (5 V-11 W) EVLVIP27H-12SB, VIPer27 demonstration board 1.1 1 MB
Design Notes & Tips
Description Version Size
DN0002 DN0002: 10W off-line LED driver based on VIPER27 1.0 826 KB

HW Model & CAD Libraries

HW Model & CAD Libraries
Description Version Size
VIPER27 Spice models 1.0 54 KB

Presentations & Training Material

Presentations
Description Version Size
ST products and solutions for solar energy 5.1 2 MB

Publications and Collaterals

Flyers
Description Version Size
High-efficiency ATX design using asymmetrical half-bridge topology 2.1 1 MB
Brochures
Description Version Size
Brochure Power management guide 05.2016 4 MB
VIPerPlus brochure 1 MB

Tools and Software

Evaluation Tools
Solution Evaluation Tools
eDesignSuite Support & Community



Sample & Buy

Part Number Package Packing Type Marketing Status Unit Price (US$) * Quantity RDS(on) (Ω) (max) Transistor Breakdown Voltage (V) (min) Drain Current (A) (nom) ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
VIPER27HN PDIP 7 Tube Active - - 7 800 0.7 NEC EAR99 MALAYSIA MORE INFO Get Sample Add to cart DISTRIBUTOR AVAILABILITY
VIPER27LDTR SO-16 Tape And Reel Active - - 7 800 0.7 NEC EAR99 CHINA MORE INFO DISTRIBUTOR AVAILABILITY
VIPER27HDTR SO-16 Tape And Reel Active - - 7 800 0.7 NEC EAR99 CHINA MORE INFO Get Sample Add to cart DISTRIBUTOR AVAILABILITY
VIPER27LN PDIP 7 Tube Active - - 7 800 0.7 NEC EAR99 MALAYSIA MORE INFO Get Sample Add to cart DISTRIBUTOR AVAILABILITY
VIPER27HD SO-16 Tube Active - - 7 800 0.7 NEC EAR99 CHINA MORE INFO DISTRIBUTOR AVAILABILITY
VIPER27LD SO-16 Tube Active - - 7 800 0.7 NEC EAR99 CHINA MORE INFO DISTRIBUTOR AVAILABILITY
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(*) 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

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
VIPER27HN ActivePDIP 7IndustrialEcopack2 0 0
VIPER27LDTR ActiveSO-16IndustrialEcopack2
VIPER27HDTR ActiveSO-16IndustrialEcopack2
VIPER27LN ActivePDIP 7IndustrialEcopack2 0 0
VIPER27HD ActiveSO-16IndustrialEcopack2 0 0
VIPER27LD ActiveSO-16IndustrialEcopack2 0 0
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(**) 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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