Demonstration board based on VIPer06 from the fixed-frequency VIPer™ plus family

The STEVAL-ISA137V1 demonstration board implements an isolated flyback (5 V / 0.6 A) 3 W wide-range mains developed for general-purpose applications.

The core of the application is the VIPer06HS, a new offline high voltage converter from the VIPer plus family.

The IC combines a high-performance low-voltage PWM controller chip and an 800 V, avalanche-rugged power MOSFET in the same package.

The main characteristics of the demonstration board are its small size, high efficiency and low standby consumption. Extremely low consumption under no-load conditions is ensured thanks to burst mode operation, which reduces the average switching frequency and minimizes all frequency-related losses.

The VIPer06HS operates at fixed frequency, 115 kHz. Frequency jittering is implemented, enabling it to meet the standards for electromagnetic disturbance. Protection features on the device, such as delayed overload, open loop failure and hysteretic thermal protection, improve the reliability and safety of the design.

Key Features

  • Universal input mains range: 85 - 265 VAC , frequency: 50 - 60 Hz
  • Output voltage: 5 V / 0.6 A
  • Very compact size
  • Standby mains consumption: < 30 mW at 230 VAC
  • Average efficiency: > 65%
  • EMI: in accordance with EN55022-Class-B
  • RoHS compliant





Description Version Size
DB1984 DB1984: Demonstration board based on VIPer06 from the fixed-frequency VIPer™ plus family 1.0 146 KB
Description Version Size
AN4418 AN4418: 3 W, 5 V isolated flyback converter using the VIPer06HS, from the VIPer™ plus family 2.0 1 MB


Board Manufacturing Specifications
Description Version Size
STEVAL-ISA137V1 gerber files 1.0 185 KB
Bill of Materials
Description Version Size
Schematic Pack
Description Version Size
STEVAL-ISA137V1 schematics 1.0 56 KB


Description Version Size
Evaluation products license agreement 1.4 128 KB
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型号 Core Product Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
STEVAL-ISA137V1 VIPER06HS Active 64 1 NEC EAR99 ITALY MORE INFO No availability reported, please contact our Sales office

(*) 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


型号 Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STEVAL-ISA137V1 ActiveCARDIndustrialEcopack2

(**) 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.