ST Life.augmented

VIPER38

Peak power VIPerPlus: fixed-frequency high-voltage converter
  • active Active

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.

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Errata Sheet
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Datasheet

Key Features

  • 800 V avalanche-rugged power MOSFET with embedded HV startup and sense FET
  • PWM current-mode controller
  • OCP with selectable threshold (IDlim) and 2ndOCP 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 or 115 kHz
  • Jittered frequency reduces the EMC
  • 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

Design Resources

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Technical Documentation

Product Specifications

Description Version Size
pdf
DS10100: Peak power high-voltage converter - VIPer Plus
1.0 1,388 KB

Related Tools and Software

Related Tools and Software

Part Number Description
STEVAL-ISA153V1 12 V, 15 W (20 W peak) isolated flyback converter based on the VIPER38LE

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**
VIPER38HEActiveSDIP 10Tube4.58001.15Free Samples.595Distributor reported inventory date: 2014-12-20
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA20002000
AVNETOrder NowAMERICA20000
DIGIKEYOrder NowWORLDWIDE9371
FUTUREOrder NowWORLDWIDE200050
MOUSEROrder NowWORLDWIDE19781
Ecopack2PDF
XML
VIPER38LEActiveSDIP 10Tube4.58001.15Free Samples.595Distributor reported inventory date: 2014-12-20
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA20002000
AVNETOrder NowAMERICA20000
DIGIKEYOrder NowWORLDWIDE9341
MOUSEROrder NowWORLDWIDE18901
Ecopack2-

(*) 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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