VIPerPlus family: Peak power fixed frequency off line high voltage converter

The device is a high-voltage converter that smartly integrates an 800 V rugged power MOSFET with PWM current-mode control.This IC is capable of meeting more stringent energy-saving standards as it has very low consumption and operates in burst mode under light load. The device features an adjustable extra power timer (EPT) that enables the IC to sustain overload conditions for a few seconds. The integrated HV startup, sense FET and oscillator with jitter allow the advantage of using minimal components in the application. The device features high-level protections like dual-level OCP, output overvoltage, short-circuit, and thermal shutdown with hysteresis. After the removal of a fault condition, the IC is automatically restarted.

Key Features

  • 800 V avalanche-rugged power MOSFET allowing achieving ultra wide-range input Vac
  • Embedded HV startup and sense FET
  • PWM current-mode controller
  • OCP with selectable threshold (IDlim ) and 2nd OCP with higher value (IDMAX ) to protect the IC from transformer saturation or short-circuit of the secondary diode
  • 30 mW no-load consumption at 230 Vac
  • Two operating frequencies:
    • 60 kHz (L type) or 115 kHz (H type)
  • Jittered frequency reduces the EMI
  • Extra power timer (EPT) blanks the overload current for few seconds
  • Output overvoltage protection with tight tolerance and digital noise filter
  • Soft-start reduces the stress during startup and increases IC lifetime
  • Automatic restart after a fault condition
  • Thermal shutdown increases system reliability and IC lifetime

Circuit Diagram

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circuit_diagram_15028_thumbnail.png

Design

Technical Documentation

Product Specifications
Description Version Size
DS5927 DS5927: Peak power high-voltage converter - VIPer Plus 6.0 876 KB
Application Notes
Description Version Size
AN2950 AN2950: EVLVIPER28L-10W: 5 V/10 W, 60 kHz isolated flyback with extra power management 1.0 1 MB
AN4564 AN4564: Is a positive power supply mandatory for my application, or could a negative output work also? 1.0 384 KB

Presentations & Training Material

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

Publications and Collaterals

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
VIPER28LD SO-16 Tube Active - - 7 800 0.8 NEC EAR99 CHINA MORE INFO DISTRIBUTOR AVAILABILITY
VIPER28LN PDIP 7 Tube Active - - 7 800 0.8 NEC EAR99 MALAYSIA MORE INFO Get Sample Add to cart DISTRIBUTOR AVAILABILITY
VIPER28HDTR SO-16 Tape And Reel Active - - 7 800 0.8 NEC EAR99 CHINA MORE INFO Get Sample Add to cart DISTRIBUTOR AVAILABILITY
VIPER28HN PDIP 7 Tube Active - - 7 800 0.8 NEC EAR99 MALAYSIA MORE INFO Get Sample Add to cart DISTRIBUTOR AVAILABILITY
VIPER28LDTR SO-16 Tape And Reel Active - - 7 800 0.8 NEC EAR99 CHINA MORE INFO DISTRIBUTOR AVAILABILITY
VIPER28HD SO-16 Tube Active - - 7 800 0.8 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**
VIPER28LD ActiveSO-16IndustrialEcopack2 0 0
VIPER28LN ActivePDIP 7IndustrialEcopack2 0 0
VIPER28HDTR ActiveSO-16IndustrialEcopack2 0 0
VIPER28HN ActivePDIP 7IndustrialEcopack2 (**) 0 0
VIPER28LDTR ActiveSO-16IndustrialEcopack2 0 0
VIPER28HD 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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