EVLSRK1001-TO

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SRK1001 adaptive synchronous rectification controller for flyback converter demonstration board with SR MOSFET

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  • The EVLSRK1001-TO is a demonstration board, designed for evaluation of the SRK1001 synchronous rectification controller.

    The SRK1001 implements a control scheme specific for secondary-side synchronous rectification in flyback converters and provides high-current gate-drive outputs for driving N-channel Power MOSFET. The device can operate both in quasi-resonant (QR) applications and in fixed frequency (FF) mixed DCM-CCM applications. The board is provided with a setting suitable for QR application. To use in FF applications, a 100 pF capacitor needs to be added in C3. A 120 kΩ resistor (R3) is provided on the TON pin that fixes the blanking after the turn-on to about 1.44 μs. The blanking time after turn-off is set to 3 μs through a 100 kΩ resistor (R4) on TOFF pin.
    In order to use the DIS/SYNC pin functionality, the user has to remove the zero ohm resistor R9: the PCB already provides a npn transistor connected to this pin for remote ON/OFF.
    The board includes the SR MOSFET (TO220FP package) and can be easily implemented into an existing converter to substitute rectifier diodes.

    Key Features

    • Synchronous rectifier for flyback converter, with fixed turn-on and adaptive turn-off
    • Vcc range: 3.5 V to 32 V
    • DVS sensing voltage: 185V AMR
    • Max frequency: 500 kHz
    • Internal gate drive for N-channel MOSFET
    • SR MOSFET type: FDPF190N15A (150 V – 19 mΩ) TO220FP

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Technical Documentation

    • Description Version Size Action
      DB3956
      SRK1001 adaptive synchronous rectification controller for flyback converter demonstration board with SR MOSFET
      1.0
      2.64 MB
      PDF
      DB3956

      SRK1001 adaptive synchronous rectification controller for flyback converter demonstration board with SR MOSFET

    • Description Version Size Action
      AN5333
      SRK1001 adaptive synchronous rectification controller for flyback converters evaluation board family
      1.0
      1.75 MB
      PDF
      AN5333

      SRK1001 adaptive synchronous rectification controller for flyback converters evaluation board family

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      eDesignSuite-The smart way to design your application

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade WEEE Compliant Material Declaration**
EVLSRK1001-TO
Active
CARD Industrial Ecopack1 -

EVLSRK1001-TO

Package:

CARD

Material Declaration**:

Marketing Status

Active

Package

CARD

Grade

Industrial

RoHS Compliance Grade

Ecopack1

(**) 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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EVLSRK1001-TO Available at 4 distributors

Distributor availability ofEVLSRK1001-TO

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5 1 Order Now
AVNET AMERICA 5 0 Order Now
MOUSER WORLDWIDE 5 1 Order Now
Farnell Element14 EUROPE 10 1 Order Now

Distributor reported inventory date: 2020-08-10

Distributor Name

DIGIKEY

Stock

5

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

5

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

5

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

10

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-10

Buy now SRK1001
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ST EAR99 NEC ITALY - 20.0 / 1

EVLSRK1001-TO

Core Product

SRK1001

Marketing Status

Active

Budgetary Price (US$)*/Qty

20.0 / 1

Distributor availability ofEVLSRK1001-TO

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5 1 Order Now
AVNET AMERICA 5 0 Order Now
MOUSER WORLDWIDE 5 1 Order Now
Farnell Element14 EUROPE 10 1 Order Now

Distributor reported inventory date: 2020-08-10

Distributor Name

DIGIKEY

Stock

5

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

5

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

5

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

10

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-10

Supplier

ST

ECCN (US)

EAR99

ECCN (EU)

NEC

Budgetary Price (US$)* / Qty

20.0 / 1

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