LT3753
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LT3753

有源箝位同步正激式控制器

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Info : 推荐新设计使用 tooltip
Info : 推荐新设计使用 tooltip
产品详情
产品模型 8
特性
  • 输入电压范围:8.5V 至 100V
  • 可编程伏特-秒箝位
  • 高效控制:有源箝位、同步整流、可编程延迟
  • 短路 (打嗝模式) 过流保护
  • 可编程软起动 / 停止
  • 具迟滞的可编程 OVLO 和 UVLO
  • 可编程频率 (100kHz 至 500kHz)
  • 可同步至一个外部时钟

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LT®3753 是一款电流模式 PWM 控制器,专为一种有源箝位正激式转换器拓扑而优化,可在输入高达 100V 时正常运作。 

一个可编程伏特-秒箝位可提供高于 50% 的主开关占空比,以实现高的开关、变压器和整流器利用率。有源箝位控制可减小开关电压应力并提高效率。一个同步输出可用于控制副边同步整流。 

LT3753 采用 38 引脚塑料 TSSOP 封装,其去除了若干个引脚以实现高压引脚间隔。


应用

  • 工业、汽车和军用系统
  • 48V 电信隔离式电源

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

视频

产品型号 引脚/封装图-中文版 文档 CAD 符号,脚注和 3D模型
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产品型号

产品生命周期

PCN

4月 6, 2022

- 22_0068

Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL

LT3753EFE#PBF

量产

LT3753EFE#TRPBF

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LT3753HFE#PBF

量产

LT3753HFE#TRPBF

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LT3753IFE#PBF

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LT3753IFE#TRPBF

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LT3753MPFE#PBF

量产

LT3753MPFE#TRPBF

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根据型号筛选

reset

重置过滤器

产品型号

产品生命周期

PCN

4月 6, 2022

- 22_0068

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Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL

LT3753EFE#PBF

量产

LT3753EFE#TRPBF

量产

LT3753HFE#PBF

量产

LT3753HFE#TRPBF

量产

LT3753IFE#PBF

量产

LT3753IFE#TRPBF

量产

LT3753MPFE#PBF

量产

LT3753MPFE#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 5

reference details image

DC2324A-B

LT3753EFE Demo Board | Isolated Forward Converter, 18V ≤ VIN ≤ 36V; VOUT = 24V @ 5A

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DC2324A-B

LT3753EFE Demo Board | Isolated Forward Converter, 18V ≤ VIN ≤ 36V; VOUT = 24V @ 5A

LT3753EFE Demo Board | Isolated Forward Converter, 18V ≤ VIN ≤ 36V; VOUT = 24V @ 5A

产品详情

Demonstration circuits 2324A-A, 2324A-B, and 2324A-C are active clamp forward converters with synchronous rectification featuring the LT3753.


These circuits were designed to demonstrate the high level of performance, efficiency and small solution size attainable using this part. They operate at 240kHz. The DC2324A-A produces a 24V/5A output from an input voltage range of 36V to 72V. The DC2324A-B produces a 24V/5A output from an input voltage range of 18V to 36V. The DC2324A-C produces a 24V/4A output from an input voltage range of 9V to 18V, making it suitable for telecom, industrial and other isolated power supply applications. They all have an eighth-brick footprint area. Synchronous rectification helps to attain efficiency exceeding 94% (exceeding 95% for the DC2324A-A and DC2324A-B).

reference details image

DC2050A

LT3753EFE Isolated Demo Board | Synchronous Forward Controller with Active Clamp, 36V ≤ VIN ≤ 72V; VOUT = 5V @ 20A

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DC2050A

LT3753EFE Isolated Demo Board | Synchronous Forward Controller with Active Clamp, 36V ≤ VIN ≤ 72V; VOUT = 5V @ 20A

LT3753EFE Isolated Demo Board | Synchronous Forward Controller with Active Clamp, 36V ≤ VIN ≤ 72V; VOUT = 5V @ 20A

产品详情

Demonstration circuit 2050A is an active clamp forward converter with synchronous rectification featuring the LT3753. This circuit was designed to demonstrate the high level of performance, efficiency, and small solution size attainable using this part. It operates at 250kHz and produces a regulated 5V, 20A output from an input voltage range of 36V to 72V: suitable for telecom, industrial, and other applications. It has an eighth-brick footprint area. Synchronous rectification helps to attain efficiency exceeding 94%.

reference details image

DC2324A-A

LT3753EFE演示板 | 隔离型正激式转换器,36V ≤ VIN ≤ 72V;VOUT = 24V (5A)

zoom

DC2324A-A

LT3753EFE演示板 | 隔离型正激式转换器,36V ≤ VIN ≤ 72V;VOUT = 24V (5A)

LT3753EFE演示板 | 隔离型正激式转换器,36V ≤ VIN ≤ 72V;VOUT = 24V (5A)

产品详情

演示电路2324A-A、2324A-B和2324A-C均为具有同步整流功能的有源箝位正激式转换器,内置LT3753。


这些电路旨在演示使用此器件可实现的高性能水平、高效率和小尺寸解决方案。其工作频率为240kHz。DC2324A-A可通过36V至72V的输入电压产生24V/5A输出。DC2324A-B可通过18V至36V的输入电压产生24V/5A输出。DC2324A-C可通过9V至18V的输入电压产生24V/4A输出,适合电信、工业和其他隔离式电源应用。均为1/8砖大小。同步整流有助于实现超过94%的效率(DC2324A-A和DC2324A-B超过95%)。

reference details image

DC2324A-C

LT3753EFE Isolated Demo Board | Sync Forward Controller with Active Clamp, 9V ≤ VIN ≤ 18V; VOUT = 24V @ 4A

zoom

DC2324A-C

LT3753EFE Isolated Demo Board | Sync Forward Controller with Active Clamp, 9V ≤ VIN ≤ 18V; VOUT = 24V @ 4A

LT3753EFE Isolated Demo Board | Sync Forward Controller with Active Clamp, 9V ≤ VIN ≤ 18V; VOUT = 24V @ 4A

产品详情

Demonstration circuits 2324A-A, 2324A-B, and 2324A-C are active clamp forward converters with synchronous rectification featuring the LT3753.


These circuits were designed to demonstrate the high level of performance, efficiency and small solution size attainable using this part. They operate at 240kHz. The DC2324A-A produces a 24V/5A output from an input voltage range of 36V to 72V. The DC2324A-B produces a 24V/5A output from an input voltage range of 18V to 36V. The DC2324A-C produces a 24V/4A output from an input voltage range of 9V to 18V, making it suitable for telecom, industrial and other isolated power supply applications. They all have an eighth-brick footprint area. Synchronous rectification helps to attain efficiency exceeding 94% (exceeding 95% for the DC2324A-A and DC2324A-B).


 


reference details image

DC2306A

LT3753EFE隔离演示板 | 正向转换器,10V ≤ VIN ≤ 54V;VOUT = 48V或54V(跳线可选,1.5A)

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DC2306A

LT3753EFE隔离演示板 | 正向转换器,10V ≤ VIN ≤ 54V;VOUT = 48V或54V(跳线可选,1.5A)

LT3753EFE隔离演示板 | 正向转换器,10V ≤ VIN ≤ 54V;VOUT = 48V或54V(跳线可选,1.5A)

产品详情

演示电路2306A是一款有源箝位正激转换器,内置LT3753。

该电路设计用于演示可使用LT3753获得的高性能水平和高效率。该器件的频率为100kHz并在10V至54V的宽输入电压范围内产生54V、1.5A稳压输出,使其适合电信、工业和其他应用。此电路的输出电压在54V和48V之间通过跳线选择。

 


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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