EVLSRK1001-PF

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

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  • The EVLSRK1001-PF 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 100pF 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 (PowFLAT 5 x 6 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: BSC110N15NS5 standard level (150 V – 11 mΩ) PowerFLAT 5 x 6

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

EVLSRK1001-PF

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-PF Available at 5 distributors

Distributor availability ofEVLSRK1001-PF

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4 1 Order Now
RS COMPONENTS EUROPE 5 1 Order Now
AVNET AMERICA 5 0 Order Now
MOUSER WORLDWIDE 7 1 Order Now
Farnell Element14 EUROPE 8 1 Order Now

Distributor reported inventory date: 2020-12-02

Distributor Name

DIGIKEY

Stock

4

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

5

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

5

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

7

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

8

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-12-02

Buy Direct SRK1001
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ST EAR99 NEC ITALY - 20.0 / 1

EVLSRK1001-PF

Core Product

SRK1001

Marketing Status

Active

Budgetary Price (US$)*/Qty

20.0 / 1

Distributor availability ofEVLSRK1001-PF

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4 1 Order Now
RS COMPONENTS EUROPE 5 1 Order Now
AVNET AMERICA 5 0 Order Now
MOUSER WORLDWIDE 7 1 Order Now
Farnell Element14 EUROPE 8 1 Order Now

Distributor reported inventory date: 2020-12-02

Distributor Name

DIGIKEY

Stock

4

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

5

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

5

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

7

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

8

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-12-02

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