LT3837

量产

隔离型无光隔离器同步反激式控制器

数据手册 产品选型表
产品模型
4
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

  • 直接从主端绕组检测输出电压 —— 无需光隔离器
  • 同步驱动器用于实现高效率
  • 电源电压范围：4.5V 至 20V
  • 准确的调节而无需用户修整
  • 可编程开关频率范围：50kHz 至 250kHz
  • 可同步
  • 负载补偿
  • 欠压闭锁
  • 采用耐热增强型 16 引脚 TSSOP 封装

 
LT3837
隔离型无光隔离器同步反激式控制器
9V –18V to 3.3V at 10A Isolated Converter Efficiency vs Load Current Product Package 1 Regulation vs Load Current
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参考资料

数据手册 1

可靠性数据 1

用户手册 4

设计笔记 2

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硬件生态系统

部分模型 产品周期 描述
PowerPath、理想二极管和负载开关 1
LTC4359
推荐新设计使用 具反向输入保护功能的理想二极管控制器
隔离µModule转换器 2
LTM8047
推荐新设计使用 3.1VIN 至 32VIN 隔离式 μModule DC/DC 转换器
LTM8048
推荐新设计使用 具 LDO 后置稳压器的 3.1VIN 至 32VIN 隔离式 μModule DC/DC 转换器
硅振荡器 2
LTC6908
具扩频调制功能、采用电阻器设定频率的 SOT-23 封装振荡器
LTC6909
量产 采用扩频调制、可提供 1 至 8 个输出的多相硅振荡器
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工具及仿真模型

LTspice 1

LTspice中提供以下器件型号：

  • LT3837
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
DC950A-B

LT3837EFE Demo Board | 9V ≤ VIN ≤ 36V, VOUT: 5V/2A, 3.3V/3A, 2.5V/3A

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产品详情

Demonstration circuit 950A-B is an isolated, 30W multi-output, synchronous flyback converter in 1/8 brick format featuring the LT3837. Output voltage sensing is implemented without the use of opto-coupler, by sensing the voltage across a primary side auxiliary winding. A load compensation circuit is used to compensate for voltage drops caused by load currents. DC950A-B has input voltage range 9V-36V. Demonstration circuit 950A uses a transformer design with tapped secondary winding, to achieve higher efficiency and better cross regulation than is possible with a transformer that uses a separate winding for each output.



eval board
schematic 2
DC1038A-B

LT3837EFE | 9V to 36V input to 5V at 7A Synchronous Flyback Converter

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产品详情

Demonstration circuit 1038A-B is a 35W isolated flyback converter with synchronous rectification and primary-side regulation featuring the LT3837. This circuit was designed to demonstrate the high levels of performance, efficiency, and small solution size attainable using the part in a flyback power supply. It operates at 200kHz and produces a regulated 5V, 7A output from an input voltage range of 9V to 36V. Isolation voltage is 1500VDC.

eval board
schematic 3
DC1038A-C

LT3837EFE | 9V to 36V input to 12V at 3A Synchronous Flyback Converter

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产品详情

Demonstration circuit 1038A-C is a 36W isolated flyback converter with synchronous rectification and primary-side regulation featuring the LT3837. This circuit was designed to demonstrate the high levels of performance, efficiency, and small solution size attainable using the part in a flyback power supply. It operates at 200kHz and produces a regulated 12V, 3A output from an input voltage range of 9V to 36V. Isolation voltage is 1500VDC.

eval board
schematic 4
DC1038A-A

LT3837EFE | 9V to 36V input to 3.3V at 10A Synchronous Flyback Converter

立即购买 更多内容

产品详情

Demonstration circuit 1038A-A is a 33W isolated flyback converter with synchronous rectification and primary-side regulation featuring the LT3837. This circuit was designed to demonstrate the high levels of performance, efficiency, and small solution size attainable using the part in a flyback power supply. It operates at 200kHz and produces a regulated 3.3V, 10A output from an input voltage range of 9V to 36V. Isolation voltage is 1500VDC.
DC950A-B
LT3837EFE Demo Board | 9V ≤ VIN ≤ 36V, VOUT: 5V/2A, 3.3V/3A, 2.5V/3A
DC950A-A - Schematic
DC1038A-B
LT3837EFE | 9V to 36V input to 5V at 7A Synchronous Flyback Converter
DC1038A-B - Schematic
DC1038A-C
LT3837EFE | 9V to 36V input to 12V at 3A Synchronous Flyback Converter
DC1038A-C - Schematic
DC1038A-A
LT3837EFE | 9V to 36V input to 3.3V at 10A Synchronous Flyback Converter
DC1038A-A - Schematic

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