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  • The EVLSRK1000B-TO is a demonstration board, designed for evaluation of the SRK1000B synchronous rectification controller.

    The SRK1000B 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 applications and in fixed frequency (FF) mixed DCM-CCM applications. The board is provided with a setting suitable for QR applications. To use in FF applications, a 100 pF capacitor needs to be added in C4. A 68 kΩ resistor (R5) is provided on the TON pin that fixes the blanking after the turn-on to about 0.8 μs.
    The board includes the SR MOSFET (TO-220FP 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 max. operating voltage 90 V
    • Max. frequency: 500 kHz
    • Internal gate drive for N-channel MOSFET
    • SR MOSFET type: STF80N10F7 (100 V - 10 mΩ) TO-220FP

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade WEEE Compliant Material Declaration**
EVLSRK1000B-TO
Active
CARD Industrial Ecopack1 -

EVLSRK1000B-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.

Sample & Buy

Part Number
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Core Product
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ECCN (US)
ECCN (EU)
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Board production status
Budgetary Price (US$)*/Qty
EVLSRK1000B-TO Available at 5 distributors

Distributor availability ofEVLSRK1000B-TO

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5 1 Order Now
AVNET AMERICA 1 0 Order Now
FUTURE WORLDWIDE 5 1 Order Now
MOUSER WORLDWIDE 5 1 Order Now
Farnell Element14 EUROPE 4 1 Order Now

Distributor reported inventory date: 2020-12-02

Distributor Name

DIGIKEY

Stock

5

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

1

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

5

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

5

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-12-02

Buy Direct SRK1000B
Active
- EAR99 NEC ITALY - 15.0 / 1

EVLSRK1000B-TO

Core Product

SRK1000B

Marketing Status

Active

Budgetary Price (US$)*/Qty

15.0 / 1

Distributor availability ofEVLSRK1000B-TO

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5 1 Order Now
AVNET AMERICA 1 0 Order Now
FUTURE WORLDWIDE 5 1 Order Now
MOUSER WORLDWIDE 5 1 Order Now
Farnell Element14 EUROPE 4 1 Order Now

Distributor reported inventory date: 2020-12-02

Distributor Name

DIGIKEY

Stock

5

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

1

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

5

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

5

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-12-02

Supplier

-

ECCN (US)

EAR99

ECCN (EU)

NEC

Budgetary Price (US$)* / Qty

15.0 / 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