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  • STSR2P Smart Driver IC provides two complementary high current outputs to drive Power Mosfets. The IC is dedicated to properly drive secondary Synchronous Rectifiers in medium power, low output voltage, high efficiency Forward Converters. From a synchronizing clock input, STSR2P generates two driving signals with the self-setting of dead time between complementary pulses. The IC operation prevents secondary side shoot-through conditions providing proper timing at the outputs turn-off transition. This smart function operates through a fast cycle-after-cycle control logic mechanism based on an internal high frequency oscillator, synchronized by the clock signal. A fixed anticipation in turning-off the OUTGATE1 with respect to the clock signal transition is provided, while the anticipation in turning off the OUTGATE2 can be set through external components. The adopted transitions revelation mechanism makes circuit operation independent by the forward magnetic reset technique used, avoiding most of the common problems inherent in self-driven synchronous rectifiers. A special Inhibit function allows the shut-off of OUTGATE2. This feature makes discontinuous conduction mode possible and prevents the freewheeling mosfet from sinking current from the output.

    STSR2P automatically turns off the outputs when duty-cycle is lower than 13%, while STSR2PM works even at very low duty-cycle values.

    主要特性

    • POSSIBILITY TO OPERATE IN DISCONTINUOUS MODE
    • SUPPLY VOLTAGE RANGE: 4.5V TO 5.5V
    • OPERATING FREQUENCY: 20 TO 750 KHZ
    • TYPICAL PEAK OUTPUT CURRENT: SOURCE -2A, SINK 3.5A
    • OPERATION INDEPENDENT FROM THE FORWARD MAGNETIC RESET TECHNIQUE
    • SMART TURN-OFF ANTICIPATION TIMING

电路原理图

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样片和购买

产品型号
封装
包装类型
供货状态
预算价格(US$)
数量
ECCN (US)
Country of Origin
从分销商订购
从ST订购
STSR2PCD SO-8 Tube
NRND
- - EAR99 - 没有经销商,请联系我们的销售办事处
STSR2PCD-TR SO-8 Tape And Reel
NRND
- EAR99 - 没有经销商,请联系我们的销售办事处 立即购买

STSR2PCD

封装

SO-8

包装类型

Tube

单价(US$)

*

供货状态

NRND

单价(US$)

-

数量

-

ECCN (US)

EAR99

Country of Origin

-

STSR2PCD-TR

封装

SO-8

包装类型

Tape And Reel

单价(US$)

*

供货状态

NRND

单价(US$)

-

数量

-

ECCN (US)

EAR99

Country of Origin

-

(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商

适合您的资源

00 选择要下载的文档

技术文档

    • 描述 版本 文档大小 操作
      DS3446
      Forward synchronous rectifiers smart driver
      1.3
      292.98 KB
      PDF
      DS3446

      Forward synchronous rectifiers smart driver

    • 描述 版本 文档大小 操作
      AN1645
      STSR2P/STSR2PM simplifies implementation of synchronous rectifiers in forward converter
      1.1
      603.93 KB
      PDF
      AN1645

      STSR2P/STSR2PM simplifies implementation of synchronous rectifiers in forward converter

演示和培训资料

    • 描述 版本 文档大小 操作
      Secondary regulation Synchronous rectification controllers
      2.35 MB
      PDF

      Secondary regulation Synchronous rectification controllers

出版刊物和宣传资料

    • 描述 版本 文档大小 操作
      Power Management Guide 06.2019
      4.89 MB
      PDF

      Power Management Guide

产品型号 供货状态 封装 等级规格 符合RoHS级别 Material Declaration**
STSR2PCD
NRND
SO-8 工业 Ecopack2 (**)
STSR2PCD-TR
NRND
SO-8 工业 Ecopack2 (**)

STSR2PCD

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

NRND

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2 (**)

STSR2PCD-TR

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

NRND

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.

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