iW1762号

iW1762号

初准™ 网络适配器用高性能N沟道MOSFET数字PWM控制器

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Selectable cable drop compensation

iW1762是一种高性能AC/DC控制器,设计用于驱动用于峰值电流模式PWM反激电源的外部功率N沟道MOSFET。iW1762为输出功率在15W-24W之间的电源而优化,是网络设备和显示器中电源适配器的理想选择。

美国能源部iW1762轻松达到的外部鲍威r supply standard and the EU’s Code of Conduct, version 5, tier 2 standard, with no-load power consumption less than 20mW while complying with active mode efficiency requirements. As aPrimAccurate™controller the iW1762 does not need any direct secondary-side feedback components, eliminating the need for optocouplers, reducing component count and solution cost. Additional features include Dialog's proprietaryEZ-EMI公司™technology, adaptive multi-mode PWM/PFM control for optimal efficiency across all loads, 5 selectable cable and connector voltage drop compensation voltages, robust operation with full protection from over-voltage and over-temperature.

For information on the iW1762 Ultrabook™ solution, see the参考设计第页。

Features

  • Meets Proposed Mandatory Federal Efficiency Standards for External Power Supplies1
  • Meets Energy-Star® AC-DC Power Supply Efficiency Specs (Rev 2.0)
    • 空载功耗小于50mW
  • 主动启动在不影响空载功耗的情况下缩短了开启时间
  • Optimized for an Output Power Range of 15W to 24W
  • Ultra-low 300uA Operating Current at No-Load
  • 79kHz PWM开关频率
  • Selectable Voltage Offset Compensation for Voltage Loss in Cables and Connectors (5 Options)
    • 可通过单个接地电阻器选择

Features

  • 初准™-一次侧控制,无需光耦
  • Intrinsically Low Noise Solution - No Audible Noise Over Entire Operating Range
  • Adaptive Multi-Mode PWM/PFM Control for Optimal Efficiency Across Load Range
  • EZ-EMI公司™ 设计易于满足全球电磁干扰规范
  • 快速动态负载调节
  • Fully Protected from Fault Conditions
    • 过压/过温保护
    • 输出过压、过流
    • Input Undervoltage Protection
    • Sense-Resistor Short Circuit Protection

雷竞技安卓下载

  • 网络设备和监视器的电源适配器
  • 家用电器中的交直流电源
  • 为通用输入电源优化(15W-24W)

方块图

典型应用示意图雷竞技安卓下载
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Functional block diagram

Resources

产品简介和总结
Date 版本
iW1762号Product Brief 19/06/2012 版次。0.6
白皮书和技术文章
Date 版本
What is Digital Power White Paper

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