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Deep Dimming with Virtually No Flicker Even Down to 1%
The iW3637 high-voltage, second-stage buck LED driver provides constant current to LEDs directly from DC power supplies. It supports non-isolated buck and flyback converter topologies to post-regulate from a PFC AC/DC boost converter, minimizing low frequency output ripple current and eliminating virtually all flicker in the system, even down to 1%.
A wide range of DC input voltages simplifies design by enabling the use of just one second-stage driver across any commercial lighting product portfolio.
Features
Single-Stage DC/DC Buck or Flyback Toplogy
Supports Wide DC Input Voltage with Tight Output Current Regulation (±3%)
输出电源高达150W
PrimAccurate™Primary-Side Control for Excellent Output Current Regulation with No Direct Voltage and Current Feedback Components Needed
独立最大负载电流设置接口
PWM调光
宽调光范围：1％ - 100％，分辨率为1％
Configurable Minimum Dimming Setting
- 昏暗，1％，5％或10％
完全受保护
- 输出过电压，输出开路，输出短，过电流，峰值电流限制，感测电阻短保护
- Input Voltage Under-Voltage Protection
- 内置过温保护或外部NTC
- Brown-In and Brown-Out Protection
Small SOIC 8-Lead Package
雷竞技安卓下载
Commercial Lighting:
- T8
- 0-10V Dimming
- 外部夹具驱动器
- Wireless and Intelligent LED Lighting Systems
Block Diagrams
Functional Block Diagram
Typical Applications Diagram
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