iW3637中文资料Second-Stage Buck LED Driver with Exceptional Deep Dimming Performance for Commercial Lighting Applications数据手册Renesas规格书

描述 Description

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.

特性 Features

• Single-Stage DC/DC Buck or Flyback Topology
• Supports Wide DC Input Voltage with Tight Output Current Regulation (±3%)
• Output Power up to 150W
• PrimAccurate™ Primary-Side Control for Excellent Output Current Regulation with No Direct Voltage and Current Feedback Components Needed
• Independent Maximum Load Current Setting Interface
• PWM Dimming
• Wide Dimming Range: 1% - 100%, with 1% Resolution
• Configurable Minimum Dimming Setting
• Dim-to-Off, 1%, 5% or 10%

应用 Application

• Commercial Lighting:
• T8
• 0-10V Dimming
• External Fixture Drivers
• Wireless and Intelligent LED Lighting Systems