SRK1001

批量生产
Education

自适应同步整流控制器,用于反激转换器

下载数据手册
概述
样片和购买
解决方案
Documentation
CAD Resources
工具与软件
质量与可靠性
eDesignSuite
开始
Partner products
Sales Briefcase
  • The SRK1001 controller is designed for secondary side synchronous rectification (SR) in flyback converters, suitable for operation in QR and mixed CCM/DCM fixed frequency circuits.

    It provides a high-current gate-drive output capable of driving N-channel Power MOSFETs.
    The control scheme of this IC is such that the SR MOSFET is switched on as soon as current starts flowing through its body diode, and then switched off as current approaches zero.
    The fast turn-on with minimum delay and innovative adaptive turn-off logic allow maximizing the conduction time of the SR MOSFET and eliminating the effect of parasitic inductance in the circuit.
    The device enters low consumption mode when it detects primary controller burst-mode operation, or when the DIS pin is pulled up by the user, or when the SR MOSFET conduction falls below the programmed minimum TON. This improves the converter efficiency at light load, where synchronous rectification is no longer beneficial.
    After the converter restarts switching or the DIS pin goes low again and the IC detects that the current conduction in the rectifiers has increased 20% above the min TON programmed value, the IC exits low consumption mode and resumes switching operation.

    主要特性

    • Secondary side synchronous rectification controller optimized for flyback converter
    • Suitable for QR and mixed CCM/DCM fixed frequency operation
    • Wide VCC operating voltage range 3.7 to 32 V
    • CC regulation operation down to 2V output supported
    • Very low quiescent current in low consumption mode (170 µA)
    • High-voltage sensing input for SR MOSFET drain-source voltage (185 V AMR)
    • Operating frequency up to 300 kHz
    • High-current gate-drive output for N-MOSFET
    • Fast turn-on with minimum delay time and adaptive turn-off logic
    • Programmable minimum TON and TOFF
    • Low consumption mode entry by DIS pin, by primary side burst-mode detection or by detection of SR MOSFET conduction lower than programmed min. TON
    • SO8 package

特别推荐

All tools & software

    • 产品型号
      状态
      描述
      类型
      供应商

      EVLSRK1001-PF

      批量生产

      反激式转换器演示板的SRK1001自适应同步整流控制器,具有SR MOSFET

      电源和功率转换器解决方案评估板 ST
      EVLSRK1001-PF

      描述:

      反激式转换器演示板的SRK1001自适应同步整流控制器,具有SR MOSFET

      EVLSRK1001-TO

      批量生产

      反激式转换器演示板的SRK1001自适应同步整流控制器,具有SR MOSFET

      电源和功率转换器解决方案评估板 ST
      EVLSRK1001-TO

      描述:

      反激式转换器演示板的SRK1001自适应同步整流控制器,具有SR MOSFET

      EVLSTCH03-45WPD

      批量生产

      45W USB Type-C Power Delivery 3.0 adapter based on STCH03, SRK1001 and STUSB4761

      电源和功率转换器解决方案评估板 --
      EVLSTCH03-45WPD

      描述:

      45W USB Type-C Power Delivery 3.0 adapter based on STCH03, SRK1001 and STUSB4761

EDA Symbols, Footprints and 3D Models

STMicroelectronics - SRK1001

Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.

Symbols

Symbols

Footprints

Footprints

3D model

3D models

质量与可靠性

产品型号 Marketing Status 封装 等级规格 符合RoHS级别 材料声明**
SRK1001
批量生产
SO-8 工业 Ecopack2
SRK1001TR
批量生产
SO-8 工业 Ecopack2

SRK1001

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

SRK1001TR

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此,它们可能不是100%适用于特定的设备。有关特定设备的信息,请联系 销售支持

样片和购买

产品型号
从分销商订购
从ST订购
供货状态
ECCN (US)
ECCN (EU)
包装类型
封装
温度(ºC) Country of Origin
Budgetary Price (US$)*/Qty
最小值
最大值
SRK1001TR 无法联系到经销商,请联系我们的销售办事处
批量生产
EAR99 NEC Tape And Reel SO-8 - - CHINA 0.33 / 1k
SRK1001 无法联系到经销商,请联系我们的销售办事处
批量生产
EAR99 NEC Tube SO-8 - - CHINA 0.33 / 1k

SRK1001TR

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.33 / 1k

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

SO-8

Operating Temperature (°C)

(最小值)

-

(最大值)

-

Budgetary Price (US$)* / Qty

0.33 / 1k

Country of Origin

CHINA

SRK1001

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.33 / 1k

ECCN (EU)

NEC

包装类型

Tube

封装

SO-8

Operating Temperature (°C)

(最小值)

-

(最大值)

-

Budgetary Price (US$)* / Qty

0.33 / 1k

Country of Origin

CHINA

(*) 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