Infineon ICL5101110W－54V LED驱动解决方案

Infineon公司的ICL5101是用于LED驱动器的高压谐振控制器,PFC级工作在CrCM和DCM模式,支持低负载工作条件.器件集成了高边和低边驱动器,从而降低了外接元件数量,具有小于200ms的超快点亮时间,PFC大于99%,THD小于5%,而效率高达94%.本文介绍了ICL5101产品亮点和主要特性,应用电路图,以及110W/54V LED驱动器演示板主要特性,电路图,材料清单和PCB设计文件图.
The LED Resonant controller ICL5101is designed to control resonant convertertopologies. The PFC stage operates in CrCM andDCM mode, supporting low load conditions.
Integrated high and low side drivers assure a lowcount of external components, enabling small formfactor designs.
ICL5101 parameters are adjusted by simpleresistors only, this being the ideal choice to easethe design-in process. A comprehensive set ofprotection features ensures that the LED driverdetects fault conditions, protecting both the LEDdriver and the LED load.
ICL5101产品亮点:
Supports universal input and wide output range
Low count of external components supportingsmall form factors and improved reliability
All parameters set by simple resistors only
Supports outdoor use by extended junctiontemperature range from -40 ℃ to +125 ℃
Stable low load operation mode down to 0.1 %of nominal power rating
Comprehensive set of protection features incl.external over temperature protection and
capacitive load protection to increase systemsafety
Ultra-fast time to light < 200 ms
Power Factor Correction > 99 %,THD < 5 %
High efficiency up to 94 %
PFC feature set
PFC in CritCM mode during nominal load andDCM mode in low load condition down to 0.1 %
for operation without audible noise
Improved compensation for low THD of ACinput current even in DCM operation
Adjustable PFC current limitation
Resonant half bridge feature set
Fully integrated 650 V high-side driver
Self-adaptive dead time control of t...