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Richtek Multi-string Linear power solution for LED Lamp 【方案介紹】 RT7321 work for 220Vac input, RT7322 work for 110Vac input No electrolytic capacitor and transformer required High Power Factor >0.9 Programmable LED current (WQFN-20L 5x5 Package) Easy EMI Solution Minimized BOM cost and space required 【方案特色】 Unique 2 Parallels and 2 Series driving method to achieve better LED utilization, 16% greater than 4 Series driving method Gain more lumen with the same LED, or Save LED chip for the same lumen High efficiency : around 80% High Power Factor: >0.9 【系統方塊圖】 
【規格說明】 RT7321 for 220V Light bulb
RT7322 for 110V Light bulb
本方案來自大聯大云端 |
