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4 W, 12 V output, isolated flyback converter using VIPer™ Plus - VIPER06HS
  • active Active

The STEVAL-ISA135V1 is a 12 V - 4 W power supply in isolated flyback topology based on the VIPer06HS, a new offline high voltage converter having, as main features: 800 V avalanche rugged power section, PWM operation at 115 kHz with frequency jittering for lower EMI, cycle-by-cycle current limit with adjustable set point, on-board soft-start and safe auto-restart after a fault condition.

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Data Brief

Key Features

  • AC main input voltage: VIN 85 VAC - 265 VAC
  • Main frequency: fL 50 Hz - 60 Hz
  • Output voltage: VOUT 12 V
  • Max output current: IOUT 333 mA
  • Precision of output regulation: ΔVOUT_LF ±5 %
  • High frequency output voltage ripple: ΔVOUT_HF 50 mV
  • Min active mode efficiency: ηAV 71 %
  • Max ambient operating temperature: TAMB 60 ºC
  • Thermal shutdown with hysteresis
  • Delayed overload protection
  • Open loop failure protection (if auxiliary winding is used)
  • RoHS compliant


Design Resources


Technical Documentation

Product Specifications

Description Version Size
DB2048: 4 W, 12 V output, isolated flyback converter using VIPer™ Plus - VIPER06HS
2.0 124 KB

Application Notes

Description Version Size
AN4404: 4 W, 12 V isolated flyback converter using the VIPer06HS, from the VIPer™ plus family
1.0 1,116 KB

Hardware Resources

Board Manufacturing Specification

Description Version Size
STEVAL-ISA135V1 gerber files
1.0 190 KB

Bill of Materials

Description Version Size
3.0 52 KB

Schematic Pack

Description Version Size
STEVAL-ISA135V1 schematics
1.0 20 KB

Sample & Buy

Part Number Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-ISA135V1ActiveVIPer06HS-50Distributor reported inventory date: 2016-02-08
Distributor NameRegionStockMin. order

(*) 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 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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