Inrush current solution with bypass SCR

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  • The STEVAL-SCR001V1 is a low cost evaluation board for testing ST inrush current limitation solutions.

    Based on an analog control circuit with only discrete components, it offers a compact and reliable alternative to relays to bypass inrush current limiting resistors in power converters.
    Its drive circuit is self-synchronized to the AC line. Working in pulsed mode, it allows low gate drive consumption and no SCR reverse losses. Additionally, the 50 mA SCR TN5015H-6G provides better immunity to Electrical Fast Transients (EFT).
    The power supply of the circuit can be created from a secondary winding of a PFC or an auxiliary power supply used to drive transistor and power the system MCU. With no adjustment needed when 12 V unregulated power is supplied, and only 5 wires to connect, this board can be easily implemented on existing PFC or fly-back converters.
    It is suitable for applications with peak current up to 5 A (at 60 °C ambient temperature)

    Key Features

    • Two high-temperature thyristors (SCR) in D²PAK package to bypass the inrush resistor
    • Compact SMD solution: 26 x 26 mm (≈ 1 sq. in)
    • Simple drive circuit: 2 low voltage transistors and 7 resistors (no MCU)
    • Requires an unregulated power supply (12 V typ.; created from a secondary winding)
    • Compatible with PFC and fly-back converter
    • Suitable for applications from 50 W up to 800 W (230 VRMS, TAMB = 60 °C)
    • Input voltage range: 90-265 VAC, 50/60 Hz
    • Robust and immune (2 kV IEC 61000-4-5, 2.5 kV IEC 61000-4-4) and low EMI noise (EN55014) solution
    • RoHS compliant

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Part Number
Core Product
Marketing Status
Budgetary Price (US$)*
Quantity
ECCN (US)
Country of Origin
Board production status
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STEVAL-SCR001V1 TN5015H-6G
Active
19.0 1 EAR99 ITALY - Check Availability

Distributor availability ofSTEVAL-SCR001V1

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3 1 Order Now
MOUSER WORLDWIDE 10 1 Order Now
Farnell Element14 EUROPE 1 1 Order Now

Distributor reported inventory date: 2019-10-18

Distributor Name

DIGIKEY

Stock

3

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

10

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-10-18

Buy now

STEVAL-SCR001V1

Core Product

TN5015H-6G

Marketing Status

Active

Unit Price (US$)

19.0*

Distributor availability ofSTEVAL-SCR001V1

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3 1 Order Now
MOUSER WORLDWIDE 10 1 Order Now
Farnell Element14 EUROPE 1 1 Order Now

Distributor reported inventory date: 2019-10-18

Distributor Name

DIGIKEY

Stock

3

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

10

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-10-18

Unit Price (US$)

19

Quantity

1

ECCN (US)

EAR99

Country of Origin

ITALY

Board production status

-

(*) 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

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00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DB3439
      Inrush current solution with bypass SCR
      2.0
      217.7 KB
      PDF
      DB3439

      Inrush current solution with bypass SCR

    • Description Version Size Action
      UM2314
      Getting started with the STEVAL-SCR001V1 inrush current limiter board with SCR thyristor
      2.0
      3.37 MB
      PDF
      UM2314

      Getting started with the STEVAL-SCR001V1 inrush current limiter board with SCR thyristor

Hardware Resources

    • Description Version Size Action
      STEVAL-SCR001V1 gerber files 1.0
      77.25 KB
      ZIP

      STEVAL-SCR001V1 gerber files

    • Description Version Size Action
      STEVAL-SCR001V1 BOM 1.0
      78.22 KB
      PDF

      STEVAL-SCR001V1 BOM

    • Description Version Size Action
      STEVAL-SCR001V1 schematics 1.0
      96.28 KB
      PDF

      STEVAL-SCR001V1 schematics

Publications and Collaterals

    • Description Version Size Action
      eDesignSuite-The smart way to design your application 1.0
      842.88 KB
      PDF

      eDesignSuite-The smart way to design your application

Legal

    • Description Version Size Action
      Evaluation products license agreement 1.6
      74.12 KB
      PDF

      Evaluation products license agreement

Part Number Marketing Status Package Grade RoHS Compliance Grade WEEE Compliant Material Declaration**
STEVAL-SCR001V1
Active
CARD Industrial Ecopack2 -

STEVAL-SCR001V1

Package:

CARD

Material Declaration**:

Marketing Status

Active

Package

CARD

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) 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.