LTC3900
Info: : 量产
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LTC3900

用于正激式转换器的同步整流器驱动器

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Info: : 量产 tooltip
Info: : 量产 tooltip
产品详情
产品模型 8
特性
  • N 沟道同步整流器 MOSFET 驱动器
  • 可编程超时保护
  • 反向电感器电流保护
  • 脉冲变压器同步
  • 宽 VCC 电源范围:4.5V 至 11V
  • 15ns 上升 / 下降时间 (在 VCC = 5V,CL = 4700pF)
  • 具欠压闭锁功能
  • 小外形 SO-8 封装

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LTC®3900 是一款副端同步整流器驱动器,专为在隔离正激式转换器电源中使用而设计。该芯片用于驱动 N 沟道整流器 MOSFET,并通过一个脉冲变压器接受来自主端控制器的脉冲同步信号。

LTC3900 拥有一整套用于外部 MOSFET 的保护功能。它内置了一种可编程超时功能,当同步信号丢失或错误时,该功能将停用两个驱动器。此外,该器件还利用箝位 MOSFET 的漏-源极电阻来检测输出电感器电流,从而在电感器电流出现反向时关断 MOSFET。另外,如果电源电压过低,则 LTC3900 还将关断驱动器。



Applications

  • 48V 输入隔离型 DC/DC 转换器
  • 隔离型电信电源
  • 高电压分布式电源降压型转换器
  • 工业控制系统电源
  • 汽车和重型设备

 

产品模型 8

产品技术资料帮助

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ADI公司所提供的资料均视为准确、可靠。但本公司不为用户在应用过程中侵犯任何专利权或第三方权利承担任何责任。技术指标的修改不再另行通知。本公司既没有含蓄的允许,也不允许借用ADI公司的专利或专利权的名义。本文出现的商标和注册商标所有权分别属于相应的公司。

参考资料

参考资料

产品型号 引脚/封装图-中文版 文档 CAD 符号,脚注和 3D模型
LTC3900ES8#PBF
  • HTML
  • HTML
LTC3900ES8#TRPBF
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  • HTML
LTC3900HS8#PBF
  • HTML
  • HTML
LTC3900HS8#TRPBF
  • HTML
  • HTML
LTC3900IS8#PBF
  • HTML
  • HTML
LTC3900IS8#TRPBF
  • HTML
  • HTML
LTC3900MPS8#PBF
  • HTML
  • HTML
LTC3900MPS8#TRPBF
  • HTML
  • HTML

根据型号筛选

reset

重置过滤器

产品型号

产品生命周期

PCN

10月 12, 2022

- 22_0255

Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2)

LTC3900ES8#PBF

量产

LTC3900ES8#TRPBF

量产

LTC3900HS8#PBF

量产

LTC3900HS8#TRPBF

量产

LTC3900IS8#PBF

量产

LTC3900IS8#TRPBF

量产

LTC3900MPS8#PBF

量产

LTC3900MPS8#TRPBF

量产

6月 16, 2021

- 21_0026

Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM

LTC3900ES8#PBF

量产

LTC3900ES8#TRPBF

量产

LTC3900HS8#PBF

量产

LTC3900HS8#TRPBF

量产

LTC3900IS8#PBF

量产

LTC3900IS8#TRPBF

量产

LTC3900MPS8#PBF

量产

LTC3900MPS8#TRPBF

量产

根据型号筛选

reset

重置过滤器

产品型号

产品生命周期

PCN

10月 12, 2022

- 22_0255

arrow down

Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2)

LTC3900ES8#PBF

量产

LTC3900ES8#TRPBF

量产

LTC3900HS8#PBF

量产

LTC3900HS8#TRPBF

量产

LTC3900IS8#PBF

量产

LTC3900IS8#TRPBF

量产

LTC3900MPS8#PBF

量产

LTC3900MPS8#TRPBF

量产

6月 16, 2021

- 21_0026

arrow down

Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM

LTC3900ES8#PBF

量产

LTC3900ES8#TRPBF

量产

LTC3900HS8#PBF

量产

LTC3900HS8#TRPBF

量产

LTC3900IS8#PBF

量产

LTC3900IS8#TRPBF

量产

LTC3900MPS8#PBF

量产

LTC3900MPS8#TRPBF

量产

软件和型号相关生态系统

软件和型号相关生态系统

评估套件

评估套件 7

reference details image

DC1317A-C

LT1952EGN-1/LTC3900 Demo Board | Active Reset, VIN=18V-72V VOUT=12V @ 10A

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DC1317A-C

LT1952EGN-1/LTC3900 Demo Board | Active Reset, VIN=18V-72V VOUT=12V @ 10A

LT1952EGN-1/LTC3900 Demo Board | Active Reset, VIN=18V-72V VOUT=12V @ 10A

产品详情

Demonstration circuit 1317A-C is isolated input to high current output 1/8th brick footprint synchronous forward converter featuring the LT1952 switching controller with Active Reset circuit. The Active Reset circuit can improve the efficiency in wide input voltage applications. Also, the Active Reset allows the implementation of self-driven synchronous secondary rectifiers in some applications. The DC1317A-C converts isolated 18V to 72V input to 12V output and provides over 12A of output current depending on cooling.

When determining the cooling requirements the actual input voltage range and continuous maximum output current must be taken into account. The converter operates at 300kHz with the peak efficiency greater than 94%. The DC1317 can be easily modified to generate output voltages in the range from 0.6V to 48V. The output currents are limited by total output power of up to 150W.
reference details image

DC1317A-G

LT1952EGN-1/LTC3900 Demo Board | Active Reset, VIN=9V-36V VOUT=12V @ 5A

zoom

DC1317A-G

LT1952EGN-1/LTC3900 Demo Board | Active Reset, VIN=9V-36V VOUT=12V @ 5A

LT1952EGN-1/LTC3900 Demo Board | Active Reset, VIN=9V-36V VOUT=12V @ 5A

产品详情

Demonstration circuit 1317A-G is an isolated input to high current output 1/8th brick footprint synchronous forward converter featuring the LT1952 switching controller with Active Reset circuit. The Active Reset circuit can improve the efficiency in wide input voltage applications. Also, the Active Reset allows the implementation of self-driven synchronous secondary rectifiers in some applications. The DC1317A-G converts an isolated 9V to 36V input to 12V at 5A of output current.


 


reference details image

DC968A-B

LT1952EGN-1, LTC3900CS8, LT4430ES6 Demo Board | VIN = 18V-36V, VOUT = 5V @ 20A

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DC968A-B

LT1952EGN-1, LTC3900CS8, LT4430ES6 Demo Board | VIN = 18V-36V, VOUT = 5V @ 20A

LT1952EGN-1, LTC3900CS8, LT4430ES6 Demo Board | VIN = 18V-36V, VOUT = 5V @ 20A

产品详情

DC968A-B Demo Board for:
LT1952 Single Switch Synchronous Forward Controller
LTC3900 Synchronous Rectifier Driver for Forward Converters
LT4430 Secondary-Side Optocoupler Driver

reference details image

DC968A-C

OBSOLETE: LT1952EGN-1, LTC3900CS8, LT4430ES6 Demo Board | VIN = 36V-75V, VOUT = 12V @ 12A

zoom

DC968A-C

OBSOLETE: LT1952EGN-1, LTC3900CS8, LT4430ES6 Demo Board | VIN = 36V-75V, VOUT = 12V @ 12A

OBSOLETE: LT1952EGN-1, LTC3900CS8, LT4430ES6 Demo Board | VIN = 36V-75V, VOUT = 12V @ 12A

产品详情

This evaluation board is obsolete and no longer recommended. The replacement board is the DC1317A-C.

DC968A-C Demo Board for:
LT1952 Single Switch Synchronous Forward Controller
LTC3900 Synchronous Rectifier Driver for Forward Converters
LT4430 Secondary-Side Optocoupler Driver

reference details image

DC968A-A

LT1952EGN-1, LTC3900CS8, LT4430ES6 Demo Board | VIN = 34V-75V VOUT = 3.3V @ 30A

zoom

DC968A-A

LT1952EGN-1, LTC3900CS8, LT4430ES6 Demo Board | VIN = 34V-75V VOUT = 3.3V @ 30A

LT1952EGN-1, LTC3900CS8, LT4430ES6 Demo Board | VIN = 34V-75V VOUT = 3.3V @ 30A

产品详情

DC968A-A Demo Board for:
LT1952 Single Switch Synchronous Forward Controller
LTC3900 Synchronous Rectifier Driver for Forward Converters
LT4430 Secondary-Side Optocoupler Driver


 


reference details image

DC968A-D

LT1952EGN-1, LTC3900CS8, LT4430ES6 Demo Board | VIN = 36V-75V, VOUT = 28V @ 4A

zoom

DC968A-D

LT1952EGN-1, LTC3900CS8, LT4430ES6 Demo Board | VIN = 36V-75V, VOUT = 28V @ 4A

LT1952EGN-1, LTC3900CS8, LT4430ES6 Demo Board | VIN = 36V-75V, VOUT = 28V @ 4A

产品详情

DC968A-D Demo Board for:
LT1952 Single Switch Synchronous Forward Controller
LTC3900 Synchronous Rectifier Driver for Forward Converters
LT4430 Secondary-Side Optocoupler Driver

reference details image

DC677A

LT1952-1EGN-1, LTC3900ES演示板 | VIN=36V-75V, VOUT=3.3V @ 50A

工具和仿真

工具及仿真模型 1

LTspice®是一款强大高效的免费仿真软件、原理图采集和波形观测器,为改善模拟电路的仿真提供增强功能和模型。

启动此部分的现成LTspice演示电路:

1步:下载并在计算机上安装LTspice

2步:单击下面的链接,下载演示电路。

3步:如果在单击以下链接之后LTspice未自动打开,可通过右击该链接并选择“目标另存为”来运行该仿真。将文件保存到计算机之后,请启动LTspice并从“文件”菜单中选择“打开”来打开演示电路。

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