LT1952

量产

单开关同步正激控制器

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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
  • 参考资料
  • 软件资源
  • 硬件生态系统
  • 工具及仿真模型
  • 评估套件
  • 最新评论
    •

    产品详情

    • 实现高效率的同步整流器控制
    • 可编程伏特-秒箝位
    • 25W 至 500W 的输出功率电平
    • 低电流启动 
           (LT1952 = 460uA；VIN 接通 / 关断 = 14.25V / 8.75V) 
           (LT1952-1 = 400uA；VIN 接通 / 关断 = 7.75V / 6.5V)
    • 真正的 PWM 软起动
    • 低应力短路保护
    • 精准的 107mV 电流限制门限
    • 用于同步定时的可调延迟
    • 具有可编程迟滞的精确停机门限
    • 可编程斜率补偿
    • 可编程脉冲前沿消隐
    • 可编程频率 (100kHz 至 500kHz)
    • 可同步至一个频率高达 1.5 • fOSC 的外部时钟
    • 内部 1.23V 基准
    • 2.5V 外部基准
    • 电流模式控制
    • 小外形 16 引脚 SSOP 封装

     
    LT1952
    单开关同步正激控制器
    提问

    参考资料

    数据手册 1

    可靠性数据 1

    用户手册 14

    设计笔记 1

    技术文章 1

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    软件资源

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    硬件生态系统

    部分模型 产品周期 描述
    高压热插拔控制器 1
    LTC4364
    		推荐用于新设计 具理想二极管的浪涌抑制器
    Modal heading
    添加至 myAnalog

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    工具及仿真模型

    LTspice 2

    LTspice中提供以下器件型号：

    • LT1952
    • LT1952-1
    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
    DC830A

    LT1952EGN-1 | 48VIN至3.3V、40A隔离式Quarter Brick Telecom DC/DC转换器

    立即购买 更多内容

    产品详情

    DC830A：LT1952单开关同步正激式控制器的演示板。

    eval board
    schematic 2
    DC1317A-A

    LT1952EGN-1 Active Reset Demo Board | VIN = 34V - 75V VOUT = 3.3V @ 35A

    立即购买 更多内容

    产品详情

    DC1317A-A: Demo Board for LT1952 Single Switch Synchronous Forward Controller.

    eval board
    schematic 3
    DC1317A-B

    LT1952EGN-1 Active Reset Demo Board | VIN = 18V-72V VOUT = 5V @ 25A

    立即购买 更多内容

    产品详情

    DC1317A-B: Demo Board for LT1952 Single Switch Synchronous Forward Controller.

    eval board
    schematic 4
    DC1317A-E

    LT1952EGN-1 Active Reset Demo Board | VIN=18V-72V VOUT=5V @ 12A

    立即购买 更多内容

    产品详情

    DC1317A-E: Demo Board for LT1952 Single Switch Synchronous Forward Controller.

    eval board
    schematic 5
    DC1317A-C

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

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    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.

    eval board
    schematic 6
    DC1317A-F

    LT1952EGN-1 Active Reset Demo Board | VIN=9V-36V VOUT=3.3 @ 22A

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    产品详情

    DC1317A-F: Demo Board for LT1952 Single Switch Synchronous Forward Controller.

    eval board
    schematic 7
    DC759A

    LT1952EGN、LTC1698EGN | 48VIN至5V、20A转换器，+VIN = 36V – 72V，+VOUT = +5V（20A时）

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    产品详情

    DC759A演示板适用于：
    LTC1698隔离辅助同步整流控制器
    LT1952单开关同步正激式控制器


     


    eval board
    schematic 8
    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 9
    DC1317A-H

    LT1952-1 Isolated Demo Board | Sync Forward Controller, Active Reset, 9V ≤ VIN ≤ 36V, 48V @1.5A

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    产品详情

    Demonstration circuit 1317A-H is isolated input to high current output 1/8th Brick footprint 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-H converts isolated 9V to 36V input to 48V output and provides 1.5A of output current.

    eval board
    schematic 10
    DC1317A-D

    LT1952EGN-1 Active Reset Demo Board | VIN=18V-72V VOUT=24V @ 5A

    立即购买 更多内容

    产品详情

    DC1317A-D: Demo Board for LT1952 Single Switch Synchronous Forward Controller.

    eval board
    schematic 11
    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 12
    DC968A-C

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

    立即购买 更多内容

    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 13
    DC968A-A

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

    立即购买 更多内容

    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 14
    DC968A-D

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

    立即购买 更多内容

    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
    DC830A
    LT1952EGN-1 | 48VIN至3.3V、40A隔离式Quarter Brick Telecom DC/DC转换器
    DC1317A-A
    LT1952EGN-1 Active Reset Demo Board | VIN = 34V - 75V VOUT = 3.3V @ 35A
    DC1317A-B
    LT1952EGN-1 Active Reset Demo Board | VIN = 18V-72V VOUT = 5V @ 25A
    DC1317A-E
    LT1952EGN-1 Active Reset Demo Board | VIN=18V-72V VOUT=5V @ 12A
    DC1317A-C
    LT1952EGN-1/LTC3900 Demo Board | Active Reset, VIN=18V-72V VOUT=12V @ 10A
    DC1317A-F
    LT1952EGN-1 Active Reset Demo Board | VIN=9V-36V VOUT=3.3 @ 22A
    DC759A
    LT1952EGN、LTC1698EGN | 48VIN至5V、20A转换器，+VIN = 36V – 72V，+VOUT = +5V（20A时）
    DC1317A-G
    LT1952EGN-1/LTC3900 Demo Board | Active Reset, VIN=9V-36V VOUT=12V @ 5A
    DC1317A-H
    LT1952-1 Isolated Demo Board | Sync Forward Controller, Active Reset, 9V ≤ VIN ≤ 36V, 48V @1.5A
    DC1317A-D
    LT1952EGN-1 Active Reset Demo Board | VIN=18V-72V VOUT=24V @ 5A
    DC968A-B
    LT1952EGN-1, LTC3900CS8, LT4430ES6 Demo Board | VIN = 18V-36V, VOUT = 5V @ 20A
    DC968A-C
    OBSOLETE: LT1952EGN-1, LTC3900CS8, LT4430ES6 Demo Board | VIN = 36V-75V, VOUT = 12V @ 12A
    DC968A-A
    LT1952EGN-1, LTC3900CS8, LT4430ES6 Demo Board | VIN = 34V-75V VOUT = 3.3V @ 30A
    DC968A-D
    LT1952EGN-1, LTC3900CS8, LT4430ES6 Demo Board | VIN = 36V-75V, VOUT = 28V @ 4A

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