4 W non-insulated, wide input voltage range SMPS based on the VIPer16

The STEVAL-ISA071V2 demonstration board is a non-insulated SMPS capable of delivering a 4 W output over a wide input voltage range and is designed for a mains application requiring -5 V and +7 V, referred to neutral.

The basic concepts used in this design can also be applied for higher power outputs or different voltage ranges.

The SMPS generates outputs of 5 V and 12 V, referred to the output marked -5 V. The 5 V output is dedicated to supplying an MCU. This configuration allows the use of the MCU to directly drive a Triac (referred to neutral).

The 12 V output is used to supply additional circuits (relays, OA, etc.).

Key Features

  • Input:
    • VIN : 85 - 264 Vrms
    • f: 45 - 66 Hz
  • Output:
    • 12 VDC ± 10% (referred to -5 V), 160 mA
    • -5 VDC ± 4%, 400 mA
  • Maximum output power: 4 W (range is up to 6 W for EU)
  • Standby power: 35 mW at 230 VAC
  • Short-circuit protected
  • Insulation: non-insulated; N connected to output GND
  • EMI: in accordance with EN55022 class B
  • RoHS compliant

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Design

Technical Documentation

Product Specifications
Description Version Size
DB1627 DB1627: 4 W non-insulated, wide input voltage range SMPS based on the VIPer16 1.0 283 KB
User Manuals
Description Version Size
UM0920 UM0920: 4 W non-isolated, wide input-voltage range SMPS demonstration board based on the VIPer16 2.0 916 KB

Hardware Resources

Board Manufacturing Specifications
Description Version Size
STEVAL-ISA071V2 gerber files 2.1 48 KB
Bill of Materials
Description Version Size
STEVAL-ISA071V2 BOM 1.0 8 KB
Schematic Packs
Description Version Size
STEVAL-ISA071V2 schematics 2.1 29 KB

Legal

License Agreement
Description Version Size
Evaluation products license agreement 1.0 125 KB
Support & Community
Featured Products

Sample & Buy

Part Number Core Product Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
STEVAL-ISA071V2 VIPER16L Active 36.75 1 NEC EAR99 ITALY MORE INFO Buy Direct Add to cart 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**
STEVAL-ISA071V2 ActiveCARDIndustrialEcopack2
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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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