SYNCHRONOUS RECTIFIERS SMART DRIVERS FOR ADAPTOR FLYBACK

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  • STSR30 Smart Driver IC provides a high current outputs to properly drive secondary Power Mosfets used as Synchronous Rectifier in low output voltage, high efficiency Flyback Converters. From a synchronizing clock input, withdrawn on the secondary side of the isolation transformer, the IC generates a driving signal with set dead times with respect to the primary side PWM signal.

    The IC operation prevents secondary side shoot-through conditions at turn-on of the primary switch providing anticipation in turn-off the output. This smart function is implemented by a fast cycle-after-cycle logic control mechanism, based on a high frequency oscillator synchronized by the clock signal. This anticipation is externally set through external component. A special Inhibit function, detecting the voltage across the Synchronous FET, allows to shut-off the drive output during discontinuous mode condition. A Disable pin allows turning off the device during no-load condition reducing overall current consumption.

    Key Features

    • POSSIBILITY TO OPERATE IN DISCONTINUOUS MODE
    • SUPPLY VOLTAGE RANGE: 4V TO 5.5V
    • OPERATING FREQUENCY: 20 TO 500 KHz
    • TYPICAL PEAK OUTPUT CURRENT: (SOURCE-SINK: 1.5A)
    • AUTOMATIC TURN OFF FOR DUTY-CYCLE LESS THAN 14%
    • INHIBIT BLANKING TIME: 700 ns

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Part Number
Package
Packing Type
Marketing Status
Budgetary Price (US$)*
Quantity
ECCN (US)
Country of Origin
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STSR30D-TR SO-8 Tape And Reel
Active
1.6188 1000 EAR99 CHINA Check Availability

Distributor availability ofSTSR30D-TR

Distributor Name
Region Stock Min. Order Third party link
ARROW AMERICA 5000 2500 Order Now
MOUSER WORLDWIDE 2500 1 Order Now

Distributor reported inventory date: 2019-09-19

Distributor Name

ARROW

Stock

5000

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

2500

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-09-19

Buy now
STSR30D SO-8 Tube
Active
1.6188 1000 EAR99 CHINA Check Availability

Distributor availability ofSTSR30D

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 955 1 Order Now
MOUSER WORLDWIDE 1993 1 Order Now

Distributor reported inventory date: 2019-09-19

Distributor Name

DIGIKEY

Stock

955

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

1993

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-09-19

Buy now

STSR30D-TR

Package

SO-8

Packing Type

Tape And Reel

Unit Price (US$)

1.6188*

Distributor availability ofSTSR30D-TR

Distributor Name
Region Stock Min. Order Third party link
ARROW AMERICA 5000 2500 Order Now
MOUSER WORLDWIDE 2500 1 Order Now

Distributor reported inventory date: 2019-09-19

Distributor Name

ARROW

Stock

5000

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

2500

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-09-19

Marketing Status

Active

Unit Price (US$)

1.6188

Quantity

1000

ECCN (US)

EAR99

Country of Origin

CHINA

STSR30D

Package

SO-8

Packing Type

Tube

Unit Price (US$)

1.6188*

Distributor availability ofSTSR30D

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 955 1 Order Now
MOUSER WORLDWIDE 1993 1 Order Now

Distributor reported inventory date: 2019-09-19

Distributor Name

DIGIKEY

Stock

955

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

1993

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-09-19

Marketing Status

Active

Unit Price (US$)

1.6188

Quantity

1000

ECCN (US)

EAR99

Country of Origin

CHINA

(*) 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
      DS3513
      Synchronous rectifier smart driver for flyback
      2.3
      200.21 KB
      PDF
      DS3513

      Synchronous rectifier smart driver for flyback

    • Description Version Size Action
      AN2432
      EVALSTSR30-60W: 60W AC-DC adapter with synchronous rectification using L6668 and STSR30
      2.2
      630.68 KB
      PDF
      AN2432

      EVALSTSR30-60W: 60W AC-DC adapter with synchronous rectification using L6668 and STSR30

Presentations & Training Material

    • Description Version Size Action
      Secondary regulation Synchronous rectification controllers
      2.35 MB
      PDF

      Secondary regulation Synchronous rectification controllers

Publications and Collaterals

    • Description Version Size Action
      Power Management Guide 06.2019
      5.5 MB
      PDF

      Power Management Guide

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STSR30D
Active
SO-8 Industrial Ecopack2 (**)
STSR30D-TR
Active
SO-8 Industrial Ecopack2

STSR30D

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2 (**)

STSR30D-TR

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

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.