概览

The iW1825 AccuSwitch™ digital PWM controller integrates a highly accurate control circuit with a 700V power MOSFET switch to provide a complete solution for off-line power conversion at up to 25W of output power.

Renesas' PrimAccurate™ primary-side digital control algorithms eliminate the need for failure-prone optocouplers and ensure excellent cross-regulation accuracy for multiple output designs, to enable the longer operating lifetime, high performance and reduced cost required for embedded, networking and home appliance applications.

The iW1825 has a configurable light load mode operation to enable optimization between no-load standby power and fast DLR. It can achieve <75mW at no load, with the fastest DLR setting and <30mW in the lowest setting. The iW676 synchronous rectifier controller with active voltage positioning can be used with the iW1825 to enable the lowest no-load standby power, fastest DLR and highest efficiency for 25W applications.

iW1825 Functional Block Diagram
iW1825 Typical Applications Diagram
iW1825 Functional Block Diagram
iW1825 Typical Applications Diagram
  • 25W Output
  • AccuSwitch™ Integrated 700V Power MOSFET
  • PrimAccurate™ Primary-Side Control
    • No Optocoupler Needed
  • Intelligent Digital Control Loop for Accurate Voltage Cross-Regulation
  • Meets Global Energy Efficiency Standards
  • Configurable Light Load Mode to Optimize No-Load Power Consumption and DLR
    • <30mW to <75mW No-Load Power Consumption
  • Works with the iW676 SR Controller with Active Voltage Positioning (AVP)
    • AVP – Enables <30mW No-Load Power Consumption and Fast DLR
  • Quasi-resonant Control for Optimal Efficiency
  • Adaptively Controlled Soft Start-up
    • Fast, Smooth Start-up into Large Capacitive Loads (up to 6,000µF)
  • EZ-EMI™ Design
    • Reduces Filtering Requirements
    • Easily Meets Global EMI Specifications
  • Fully Protected from Fault Conditions
    • Built-In Over-Temperature Protection
    • Output Overvoltage and Overcurrent Protection
    • Sense-Resistor Short Circuit Protection
    • Thermally Efficient SO-10 Batwing Package

应用

  • Home Appliances
  • Power Adapters
  • Networking Power Supplies

文档

= 相关文档
类型 文档标题 日期
产品简述
iW1825 Product Summary
PDF 460 KB
手册
Power Products Brochure
PDF 8.73 MB
手册
Industrial Power Management Brochure
PDF 5.49 MB 日文
其他
Reference Design EBC10309: iW1825-31, 90-264Vac Input Voltage, 12V/2.1A 25W Output Design
登录后下载 ZIP 2.11 MB
数据手册
iW1825 Datasheet
登录后下载 PDF 3.11 MB
其他
Reference Design EBC10232: iW1825-31, 90-264Vac Input Voltage, 12V/1.5A 18W Output Design
登录后下载 ZIP 3.04 MB
6 items

设计和开发

开发板与套件

IEEE 1588 Solution Reference Design Board

CN268-IEEE1588POCZ

参考
了解更多

IEEE 1588 Solution Reference Design

This IEEE 1588 solution demonstrates clock synchronization up to <50nSec between Master and Slave to reconstruct accurate synchronization signals for 5G networks.

可在云上实验室使用
使用我们基于 PC 的 GUI，无需物理板即可在虚拟实验室中立即开始配置和测试设计
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ECAD 模块

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

扩展 ECAD 模块
Diagram of ECAD Models

产品选择

    Processing table
    Pkg. Type
    Carrier Type
    Moisture Sensitivity Level (MSL)
    购买 / 样片
    器件号
    iW1825-01
    circle有效
    memory
    view_in_ar
    可提供样片
    		 SO-10 Batwing 获取样片,
    IW1825-10
    circle有效
    memory
    view_in_ar
    可提供样片
    		 SO-10 Batwing Tape & Reel 1 获取样片,
    IW1825-31
    circle有效
    memory
    view_in_ar
    可提供样片
    		 SO-10 Batwing Tape & Reel 1 获取样片,
    Parametric Table tips

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