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iW1770

iW1770

数字PWM控制器提供峰值电源模式，无需超大电源

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Off-line digital quasi-resonant PWM controller with peak power operation

IW1770为电源提供紧凑的解决方案，需要提供高达60W的输出电源短爆发，而无需超大电源系统板元件和成本。平均输出高达40W，IW1770增加了第二个峰值电流限制，允许电源从输出提供瞬时峰值电流脉冲而不进入恒定电流模式。通过实现更高的峰值输出功率，可以优化适配器成本和尺寸，同时保持用于较低的标称系统输出功率的相同外部元件。

IW1770符合美国DOE的外部电源标准和欧盟的行为准则，第5版，第2层标准，无负载功耗小于50MW，同时符合主动模式效率要求。其他功能包括快速动态负载响应（DLR），以及全套保护功能，包括输出过电流，过电压和短路保护。

The iW1770 also incorporates Dialog’sSmartDefender™smart hiccup technology to help address soft short circuits in cables and connectors. Learn more about SmartDefender smart hiccup technologyhere。

一种DiaSIMIW1770可提供仿真模型。有关更多信息和下载的地方，请访问DiaSIMpage.

特征

  • 40W平均值，60W峰值输出功率用于AC / DC电源
    • No increase in component size to accommodate peak output power
  • Meets DoE External Power Supply and EU Code of Conduct, Version 5, Tier 2 Standards
    • Less than 50mW No-Load Power Consumption
  • 一种ctive Start-Up - Reduces Turn-on Time without Impacting No-load Power Consumption
  • 高标称输出功率：15W至40W
  • 可选电缆滴补偿：0mV，75mV，150mV，300mV，450mV
    • 通过单电阻选择
  • 归因于TM值- Primary-Side Control, No Optocoupler Needed
  • 自适应多模PWM / PFM控制，用于跨负载范围的最佳效率

特征

  • 整个操作范围内没有可听噪音
  • EZ-EMITM Design to Easily Meet Global EMI Specifications
  • 快速动态载荷响应
  • SmartDefender™Smart HiCcup技术
    • Helps Address Soft-Shorts in Cables, Connectors without Latching Off
    • Helps Protect Cables and Connectors from Excessive Heat and Damage by Reducing Average Power During Short Circuit by at Least 50%
  • Fully Protected from Fault Conditions
    • 过电压/过温保护
    • Output Short Circuit
    • Sense-Resistor Short Circuit Protection

亚博国际官网平台网址

  • Network devices, printers, home electronics
  • Ultrabook电源
  • Universal input AC/DC adapters (15W-40W)

Model Available!

Block Diagrams

Typical Applications Diagram
那
Functional Block Diagram

Resources

产品简介和摘要
Date 版
iW1770 Product Summary 15/07/2016 Rev. 1.1

Dialog’sDiaSIMsimulation models and tools enable simulation and validation of AC/DC power supplies using highly accurate models for selected products. All models and application circuits are available for download from the support website.

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For technical support or information on how to buy, contact us directly.

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  • 搜索the forums.
  • 一种ccess software, drivers, tools & utilities.