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Infineon ICL8001G准谐振模式LED驱动方案

文章出处:8gled.com作者:格烁光电发表时间:2018-07-23
大连代孕-孕前频道bhYj【承诺帮你成功】Infineon公司的 ICL8001G是准谐振模式LED驱动器,精密的PWM可用于相位调光,功率因素大于98%,效率高达90%,工作电压高达26V。本文介绍了ICL8001G主要特性和亮点,方框图以及初级控制应用电路图和EVAL-led-ICL8001G-Bulb02演示板主要特性,电路图,材料清单和变压电路图。

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初级控制应用电路图

EVAL-LED-ICL8001G-Bulb02演示板

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 controll深圳代孕-【了解助孕第一选择yi40】婴儿频道er 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.

EVAL-LED-ICL8001G-Bulb02演示板主要特性:

?High, stable efficiency over wide operating range through quasiresonant operation mode

?Primary side side flyback control with integrated PFC and phase-cut dimming

?Energy efficient phase cut dimming

?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- 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


图3。EVAL-LED-ICL8001G-Bulb02演示板外形图


图4。EVAL-LED-ICL8001G-Bulb02演示板电路
EVAL-LED-ICL8001G-Bulb02演示板材料清单(BOM):


图5。EVAL-LED-ICL8001G-Bulb02演示板变压器电路图

大连代孕-孕前频道bhYj【承诺帮你成功】 Infineon ICL8001G准谐振模式LED驱动方案原创编辑请注明出来http://m.sh-keer.com

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