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iW3623

Flickerless™, Non-Dimmable 45W Solid State Lighting LED Driver with High PF (> 0.95), Low THD (<10%) and Low Output Ripple (<5%) (Two-Stage)

iw3623typicalapplicationsdiagram.jpg

Non-dimmable LED driver for 45W commercial SSL lighting

The iW3623 is a high performance, two-stage, non-dimmable 45W SSL LED driver that integrates boost and flyback converters into a single IC to reduce BOM cost and simplify design versus conventional two-stage driver approaches. Compliant to the IEC61000-3-2 standard, the iW3623 offers Power Factor (PF) >0.95 from a universal input voltage of 100VAC to 277VAC, with total harmonic distortion (THD) <10% and low output ripple <5% over the entire range.

The iW3623 incorporates Dialog’s proprietary PrimAccurate™ primary-side control technology, eliminating the need for a secondary-side regulator and optical feedback isolator. It also allows FETs to be replaced with lower cost BJTs and uses quasi-resonant mode switching for both the boost and flyback stages and dynamic base current to optimize conversion efficiency and minimize EMI.

Protection features include an on-board, external NTC-based temperature protection circuit that reduces the output drive to the LEDs to protect the circuit from overheating while maintaining light output.

Features

High PF (>0.95) and Low THD (< 10%)

Low Output Ripple Current (<5%)

PrimAccurate™ - Isolated Off-Line AC/DC Controller

45W LED Driver for Non-Dimmable Commercial Solid-State Lighting Applications

Flickerless™ Technology

  • Removes Virtually All LED Flicker

Resonant Mode for Optimal Efficiency

Fully Protected

  • NTC-based Temperature Derating Circuit
  • Over-Voltage/Over-Temperature Protection
  • Output Over-Voltage, Over-Current and Short Circuit
  • Open LED Fault Detection
  • Sense-Resistor Short Circuit Protection
  • Single-Fault Protection

雷竞技安卓下载

Non-Dimmable LED Lamps and Luminaires

Optimized for up to 45W Output Power

Block Diagrams

iw3623typicalapplicationsdiagram.jpg

Typical Applications Diagram

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Functional Block Diagram

To order a sample of any of our products, please complete the following form. We will provide up to five parts free of charge. Our sales department will provide pricing for samples orders exceeding five parts.

Sample Request Form

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Inquiries Distributors and Representatives 注册新闻通讯
产品简介和总结
Name Date Version
iW3623 Non-Dimmable LED Driver Product Summary(507.52 KB) 25/05/2016 1.6
White Papers & Technical Articles
Name Date Version
Challenges on Solid-State Lighting Offline Driver Design(1.94 MB)
Removing LED Flicker from Priceless Family Memories(843.84 KB)
What is Digital Power White Paper(597.24 KB)