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iW3827号

iW3827号

集成650v功率MOSFET的高功率因数恒压控制器

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可配置的最小/最大开关频率提供了设计灵活性

iW3827集成了一个650伏功率MOSFET和一个先进的数字控制器，并提供可配置的最大和最小开关频率，以提供高功率因数SSL恒压应用高达8W的设计灵活性。它支持最常见的单级隔离和非隔离配置（降压，buck-boost或flyback）为智能照明应用创建前端电源。iW3827采用先进的专有数字控制技术，实现高功率因数（PF>0.9）和低THD（<20%）。亚博国际官网平台网址

The iW3827 offers configurable maximum PWM switching frequency to allow optimization between size and efficiency and configurable minimum PFM switching frequency to optimize between transient performance and low no-load power consumption. The unique digital control technology accommodates large output capacitor variations while enabling fast transient response to keep the transient output voltage within 10% of its nominal level.

Features

  • Up to 8W Output Power with Integrated 650 V power MOSFET
  • 支持隔离或非隔离反激、降压或降压升压拓扑
  • High PF (> 0.9) and Low THD (< 20%) Over Wide Load Range
  • PrimAccurate™Primary-Side Control Achieves Tight Load and Line Accuracy (+/- 3%)
  • 自适应输出电压暂态检测
    • 对于大多数动态负载转换，保持输出超调和欠调<10%
  • 可配置PFM最小开关频率
    • 实现低空载待机功耗（<200mW）

  • 可配置的PWM最大开关频率
    • Optimizes for High Efficiency, Small Size
  • 主动启动–在不增加待机功率的情况下缩短开机时间
  • 完全保护
    • 过电压保护
    • 超温保护
    • 输出过压、过流、过载保护
    • Brown-Out Protection

亚博国际官网平台网址

  • GU10，蜡烛，T8，智能LED照明
  • Front-End Pre-Regulation

方块图

Typical Applications Diagram
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功能框图

资源

Product Briefs and Summaries
日期 Version
iW3827号Product Summary 22/09/2017 Rev. 0.3

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