概览
描述
The iW3623 is a high-performance, two-stage, non-dimmable 45W Solid-State Lighting (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 IEC 61000-3-2 standard, the iW3623 offers a Power Factor (PF) of >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 Renesas' 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 bipolar junction transistors (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.
特性
- High PF (>0.95) and Low THD (< 10%)
- Low Output Ripple Current (<5%)
- PrimAccurate™ - Isolated Offline 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
- Overvoltage/Over-Temperature Protection
- Output Overvoltage, Overcurrent and Short Circuit
- Open LED Fault Detection
- Sense-Resistor Short Circuit Protection
- Single-Fault Protection
产品对比
应用
文档
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| 类型 | 文档标题 | 日期 |
| 数据手册 | PDF 1.14 MB | |
| 产品简述 | PDF 592 KB | |
| 白皮书 | PDF 1.94 MB | |
| 白皮书 | PDF 843 KB | |
| 白皮书 | PDF 597 KB | |
5 项目
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设计和开发
模型
ECAD 模块
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