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STEVAL-ISA012V1

3 phase power supply with VIPer and Power MOSFETs
  • NRND NRND

This reference design represents a cost effective solution for low power high voltage power supplies. It has been developed to cover applications requiring an ultra-wide input voltage range (between 90 and 450 VAC), typical of threephase applications. This requires the use of very high voltage components, which increases cost, size, weight and the overall complexity of the power supply. The circuit includes a switching transistor connected between the input rectifier and the DC bulk capacitor (STMicroelectronics patent). The series switch limits the DC input voltage of the power converter by means of a driving circuit; thus the SMPS primary transistor can be selected as a standard part as well as a smart power primary IC.

Typical end applications for this solution can be found in the industrial market in the range below 5 W, such as three-phase and single-phase power meters, industrial bias power supplies and auxiliary SMPS for high voltage street lighting, where the input voltage can range from 90 VAC to 450 VAC and 1000 V Power MOSFETs are currently used.

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Data Brief

Key Features

  • Minimum AC input voltage = 90 VAC
  • Maximum AC input voltage = 450 VAC
  • Time of hold up capability > 50 ms
  • Mean input power < 6 W (in compliance with IEC62053-21)
  • Input connections allowed:1-phase with neutral2-phase without neutral3-phase with neutral
  • VOUT1 = 5 V, IOUT1 = 10 mA
  • VOUT2 = 3.3 V, IOUT2 = 100 mA
  • Maximum precision error = 3%
  • Maximum ripple voltage = 50 mV
  • Line regulation = +/- 1%
  • Load regulation = +/- 1%
  • Output power (peak) = 550 mW

Image

Design Resources

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Technical Documentation

Product Specifications

Description Version Size
pdf
DB0522: 3 phase power supply with VIPer and Power MOSFETs
1.2 77 KB

Application Notes

Description Version Size
pdf
AN2264: THREE-PHASE SMPS FOR LOW POWER APPLICATIONS WITH VIPer12A
1.2 1,052 KB

Hardware Resources

Board Manufacturing Specification

Description Version Size
zip
PCB layout
1.0 36 KB

Bill of Materials

Description Version Size
pdf
Bill of materials
1.0 64 KB

Schematic Pack

Description Version Size
pdf
Board schematic
1.0 33 KB

Sample & Buy

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Part Number Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-ISA012V1NRNDSTD3NK50ZT4; VIPER12ASTR-E-89Distributor reported inventory date: 2014-09-01
Distributor NameRegionStockMin. order
P&SOrder NowASIA/PACIFIC11
ANGLIA LiveOrder NowEUROPE11
Farnell Element14Order NowEUROPE11
FUTUREOrder NowWORLDWIDE11
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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