Synchronous rectifier smart driver for LLC resonant converters

下载数据手册

Sample and Buy from our eStore

样片和购买
概述
工具与软件
资源
解决方案
质量与可靠性
Sales Briefcase
eDesignSuite
开始
样片和购买
Partner products
  • 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
预算价格(US$)
数量
ECCN (US)
Country of Origin
从分销商订购
从ST订购
SRK2000A SO-8 Tube
批量生产
0.604 1000 EAR99 MOROCCO 查看供货情况

Distributor availability ofSRK2000A

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 2596 1 Order Now
Newark Element14 AMERICA 879 0 Order Now
Farnell Element14 EUROPE 1856 1 Order Now

代理商库存报告日期: 2019-12-06

代理商名称

DIGIKEY

库存

2596

Min.Order

1

地区

WORLDWIDE Order Now

Newark Element14

库存

879

Min.Order

0

地区

AMERICA Order Now

Farnell Element14

库存

1856

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-12-06

立即购买
SRK2000ATR SO-8 Tape And Reel
批量生产
0.604 1000 EAR99 MOROCCO 查看供货情况

Distributor availability ofSRK2000ATR

代理商名称
地区 库存 最小订购量 Third party link
P&S ASIA/PACIFIC 22 1 Order Now
MOUSER WORLDWIDE 100 1 Order Now

代理商库存报告日期: 2019-12-06

代理商名称

P&S

库存

22

Min.Order

1

地区

ASIA/PACIFIC Order Now

MOUSER

库存

100

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-12-06

获取样片

SRK2000A

封装

SO-8

包装类型

Tube

单价(US$)

0.604*

Distributor availability ofSRK2000A

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 2596 1 Order Now
Newark Element14 AMERICA 879 0 Order Now
Farnell Element14 EUROPE 1856 1 Order Now

代理商库存报告日期: 2019-12-06

代理商名称

DIGIKEY

库存

2596

Min.Order

1

地区

WORLDWIDE Order Now

Newark Element14

库存

879

Min.Order

0

地区

AMERICA Order Now

Farnell Element14

库存

1856

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-12-06

供货状态

批量生产

单价(US$)

0.604

数量

1000

ECCN (US)

EAR99

Country of Origin

MOROCCO

SRK2000ATR

封装

SO-8

包装类型

Tape And Reel

单价(US$)

0.604*

Distributor availability ofSRK2000ATR

代理商名称
地区 库存 最小订购量 Third party link
P&S ASIA/PACIFIC 22 1 Order Now
MOUSER WORLDWIDE 100 1 Order Now

代理商库存报告日期: 2019-12-06

代理商名称

P&S

库存

22

Min.Order

1

地区

ASIA/PACIFIC Order Now

MOUSER

库存

100

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-12-06

供货状态

批量生产

单价(US$)

0.604

数量

1000

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

适合您的资源

相关应用

LED照明和控制

电源和变换器

00 选择要下载的文档

技术文档

    • 描述 版本 文档大小 操作
      DS9993
      Synchronous rectifier smart driver for LLC resonant converters
      3.0
      406.67 KB
      PDF
      DS9993

      Synchronous rectifier smart driver for LLC resonant converters

    • 描述 版本 文档大小 操作
      AN3233
      12 V - 150 W resonant converter with synchronous rectification using L6563H, L6599A, and SRK2000A
      2.0
      1.73 MB
      PDF
      AN4027
      12 V - 150 W resonant converter with synchronous rectification using the L6563H, L6699 and SRK2000A
      3.0
      2.82 MB
      PDF
      AN3014
      19 V, 90 W resonant converter with synchronous rectification using L6563H, L6599A and SRK2000A
      3.1
      1.59 MB
      PDF
      AN3233

      12 V - 150 W resonant converter with synchronous rectification using L6563H, L6599A, and SRK2000A

      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

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**
SRK2000A
批量生产
SO-8 工业 Ecopack2
SRK2000ATR
批量生产
SO-8 工业 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

(**) 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.

支持中心或 提供反馈