新聞中心

品佳集團力推 Richtek 高功因多段式線性 LED 驅動方案

 2013-07-17

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:
系統方塊圖

【規格說明】
RT7321 for 220V Light bulb

RT7321 for 220V Light bulb

RT7322 for 110V Light bulb

RT7322 for 110V Light bulb

若需任何產品詳情,請洽品佳集團Richtek產品線企劃人員,謝謝!