Infineon ICL8001G 9W离线LED照明解方案
发布时间：2012-6-26 11:32
发布者：1770309616
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Infineon公司的ICL8001G采用准谐振工作模式的单级反激和PFC控制器,功率因素大于98%,LED驱动器效率高达90%,工作电压高达26V,内置数字软起动,初级PFC和调光控制采用精密的PWM.本文介绍了ICL8001G产品亮点和主要特性,方框图,应用电路以及评估板EVAL-LED-ICL8001G-Bulb02特性,电路图,材料清单和变压器电路图. The ICL8001G employs quasi-resonant operation mode optimized for off-line LED lighting, especially dimmable LED bulbs for incandescent lamp replacement. Precise PWM generation enables primary control for phase cut dimming and high power factor PF>98%. Significant improved driver efficiency, up to 90%, compared to other conventional solutions. The product has a wide operation range (up to 26V) of IC voltage supply and lower power consumption. Multiple safety functions ensure a full system protection in failure situations. With its full feature set and simple application, the ICL8001G represents an outstanding choice for quasi-resonant flyback LED bulb designs combining feature set and performance at minimum BOM cost. ICL8001G产品亮点: • Quasi-Resonant Control For Highly Efficient LED Driving Solutions • primary Side Flyback Control With Integrated PFC And Phase-Cut Dimming • Integrated HV Startup Cell For Short Time To Light • Best In Class System BOM For Dimmable LED Bulb ICL8001G主要特性: • High, stable efficiency over wide operating range • Optimized for trailing- and leading-edge dimmer • precise PWM for primary PFC and dimming control • Power cell for Vcc pre-charging with constant current • Built-in digital soft-start • Foldback correction and cycle-by-cycle peak current limitation • VCC over/ under-voltage lockout • Auto restart mode for short circuit protection • Adjustable latch-off mode for output overvoltage protection 
图1. ICL8001G方框图 
图2. ICL8001G初级边控制的应用电路图 评估板EVAL-LED-ICL8001G-Bulb02 EVAL-LED-ICL8001G-Bulb02 Quasi-Resonant Flyback Converter for Phase Cut Dimming with High Power Factor The EVAL-LED-ICL8001G-Bulb02 demonstrates the single-stage flyback and PFC controller ICL8001G in an LED Bulb application. Its quasiresonant operation mode, primary side control, integrated PFC and phase-cut dimming control makes it the best in class system solution for dimmable LED bulbs. 
图3. 评估板EVAL-LED-ICL8001G-Bulb02外形图 评估板EVAL-LED-ICL8001G-Bulb02主要特性: •High, stable efficiency over wide operating range through quasiresonant operation mode •  rimary side side flyback control with integrated PFC and phase-cut dimming•Energy efficient phase cut dimming • ower cell for VCC pre-charging with constant current•Built-in digital soft-start •Foldback correction and cycle-by-cycle peak current limitation •VCC over- and under-voltage lockout •Auto restart mode for short circuit protection •Adjustable latch-off mode for output overvoltage protection •Best in class system BOM for dimmable bulbs 评估板EVAL-LED-ICL8001G-Bulb02主要指标: 
评估板EVAL-LED-ICL8001G-Bulb02材料清单: 
详情请见: 
Application_Note_ICL8001G.pdf
(3.64 MB)
Datasheet_ICL8001G vers 1.pdf
(614.69 KB)
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