LTC3900

量产

用于正激式转换器的同步整流器驱动器

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产品技术资料帮助

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。
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产品详情

  • 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

LTC3900
用于正激式转换器的同步整流器驱动器
Simplified Isolated Synchronous Forward Converter Efficiency Product Package 1
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参考资料

数据手册 1

可靠性数据 1

用户手册 7

技术文章 1

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工具及仿真模型

LTspice 2

LTspice中提供以下器件型号：

  • LTC3900
LTspice

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。

评估套件

eval board
schematic 1
DC1317A-G

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

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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.


 


eval board
schematic 2
DC677A

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

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产品详情

DC677A：用于正激转换器的LTC3900同步整流器驱动器的演示板。


 


eval board
schematic 3
DC968A-B

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

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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

eval board
schematic 4
DC968A-C

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

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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This evaluation board is obsolete and no longer recommended.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

eval board
schematic 5
DC968A-A

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

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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


 


eval board
schematic 6
DC968A-D

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

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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

eval board
schematic 7
DC1317A-C

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

立即购买 更多内容

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.

DC1317A-G
LT1952EGN-1/LTC3900 Demo Board | Active Reset, VIN=9V-36V VOUT=12V @ 5A
DC1317A-G - Schematic
DC677A
LT1952-1EGN-1, LTC3900ES演示板 | VIN=36V-75V, VOUT=3.3V @ 50A
DC677A - Schematic
DC968A-B
LT1952EGN-1, LTC3900CS8, LT4430ES6 Demo Board | VIN = 18V-36V, VOUT = 5V @ 20A
DC968A-B - Schematic
DC968A-C
OBSOLETE: LT1952EGN-1, LTC3900CS8, LT4430ES6 Demo Board | VIN = 36V-75V, VOUT = 12V @ 12A
DC968A-C - Schematic
DC968A-A
LT1952EGN-1, LTC3900CS8, LT4430ES6 Demo Board | VIN = 34V-75V VOUT = 3.3V @ 30A
DC968A-A - Schematic
DC968A-D
LT1952EGN-1, LTC3900CS8, LT4430ES6 Demo Board | VIN = 36V-75V, VOUT = 28V @ 4A
DC968A-D - Schematic
DC1317A-C
LT1952EGN-1/LTC3900 Demo Board | Active Reset, VIN=18V-72V VOUT=12V @ 10A
DC1317A-C - Schematic

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