SRK2000A

批量生产
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Synchronous rectifier smart driver for LLC resonant converters

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  • The SRK2000A smart driver implements a control scheme specific to secondary side synchronous rectification in LLC resonant converters that use a transformer with center tap secondary winding for full wave rectification.

    It provides two high current gate drive outputs, each capable of driving one or more N-channel Power MOSFETs. Each gate driver is controlled separately and an interlocking logic circuit prevents the two synchronous rectifier MOSFETs from conducting simultaneously.
    The control scheme in this IC allows for each synchronous rectifier to be switched on as the corresponding half-winding starts conducting and switched off as its current goes to zero. The SRK2000A device implements matched turn-off MOSFET thresholds. A unique feature of this IC is its intelligent automatic sleep mode. It allows the detection of a low-power operating condition for the converter and puts the IC into a low consumption sleep mode where gate driving is stopped and quiescent consumption is reduced. In this way, converter efficiency improves at light load, where synchronous rectification is no longer beneficial. The IC automatically exits sleep mode and restarts switching as it recognizes that the load for the converter has increased.
    A noticeable feature is the very low external component count required.

    主要特性

    • Secondary side synchronous rectifier controller optimized for LLC resonant converters
    • Protection against current reversal
    • Safe management of load transient, light load and startup condition
    • Matched turn-off thresholds
    • Intelligent automatic sleep mode at light load
    • Dual gate driver for N-channel MOSFETs with 1 A source and 3.5 A sink drive current
    • Operating voltage range 4.5 to 32 V
    • Programmable UVLO with hysteresis
    • 250 µA quiescent consumption
    • Operating frequency up to 500 kHz
    • Available in SO-8 package

样片和购买

产品型号
封装
包装类型
供货状态
ECCN (US)
Country of Origin
Approximate Price (US$)* / Qty
从ST订购
从分销商订购
SRK2000A SO-8 Tube
批⁠量⁠生⁠产
EAR99 MOROCCO 2.10 / 1k 立即购买 查看供货情况

...的经销商可用性SRK2000A

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 2586 1 马上订购
Newark Element14 AMERICA 879 0 马上订购
Farnell Element14 EUROPE 1485 1 马上订购

代理商库存报告日期: 2020-03-28

代理商名称

DIGIKEY

库存

2586

Min.Order

1

地区

WORLDWIDE 马上订购

Newark Element14

库存

879

Min.Order

0

地区

AMERICA 马上订购

Farnell Element14

库存

1485

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2020-03-28

SRK2000ATR SO-8 Tape And Reel
批⁠量⁠生⁠产
EAR99 MOROCCO 2.10 / 1k 立即购买 查看供货情况

...的经销商可用性SRK2000ATR

代理商名称
地区 库存 最小订购量 第三方链接
P&S ASIA/PACIFIC 22 1 马上订购
MOUSER WORLDWIDE 40 1 马上订购

代理商库存报告日期: 2020-03-29

代理商名称

P&S

库存

22

Min.Order

1

地区

ASIA/PACIFIC 马上订购

MOUSER

库存

40

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2020-03-29

SRK2000A

封装

SO-8

包装类型

Tube

Approximate Price (US$)* / Qty

2.10 / 1k

...的经销商可用性SRK2000A

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 2586 1 马上订购
Newark Element14 AMERICA 879 0 马上订购
Farnell Element14 EUROPE 1485 1 马上订购

代理商库存报告日期: 2020-03-28

代理商名称

DIGIKEY

库存

2586

Min.Order

1

地区

WORLDWIDE 马上订购

Newark Element14

库存

879

Min.Order

0

地区

AMERICA 马上订购

Farnell Element14

库存

1485

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2020-03-28

供货状态

批⁠量⁠生⁠产

Budgetary Price (US$)* / Qty

2.10 / 1k

ECCN (US)

EAR99

Country of Origin

MOROCCO

SRK2000ATR

封装

SO-8

包装类型

Tape And Reel

Approximate Price (US$)* / Qty

2.10 / 1k

...的经销商可用性SRK2000ATR

代理商名称
地区 库存 最小订购量 第三方链接
P&S ASIA/PACIFIC 22 1 马上订购
MOUSER WORLDWIDE 40 1 马上订购

代理商库存报告日期: 2020-03-29

代理商名称

P&S

库存

22

Min.Order

1

地区

ASIA/PACIFIC 马上订购

MOUSER

库存

40

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2020-03-29

供货状态

批⁠量⁠生⁠产

Budgetary Price (US$)* / Qty

2.10 / 1k

ECCN (US)

EAR99

Country of Origin

MOROCCO

(*) 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

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技术文档

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      AN3014
      19 V, 90 W resonant converter with synchronous rectification using L6563H, L6599A and SRK2000A
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      AN4027

      12 V - 150 W resonant converter with synchronous rectification using the L6563H, L6699 and SRK2000A

      AN3014

      19 V, 90 W resonant converter with synchronous rectification using L6563H, L6599A and SRK2000A

Presentations & Training Material

    • 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
      5.89 MB
      PDF

      Power Management Guide

产品型号 供货状态 封装 等级规格 符合RoHS级别 材料声明**
SRK2000A
批量生产
SO-8 Industrial Ecopack2
SRK2000ATR
批量生产
SO-8 Industrial Ecopack2

SRK2000A

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

SRK2000ATR

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

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