PowerIntLYT7503D10W调光LED驱动器参考设计DER586
PowerInt公司的LYTSwitch™-7系列是相切(Phase-Cut)可调光单级LED驱动器,具有PFC和恒流电流输出.器件集成了带有可变开态CrM控制器的725V高压MOSFET.功率因素大于0.9,效率大于85%,线路输入电压±3% CC稳压,输入电压90 VAC–308 VAC,主要用在LED照明.本文介绍了LYTSwitch™-7系列产品亮点,框图和7.5 W,60 V,125 mA调光非隔离A19 LED驱动器电路图,以及用于BR-30调光LED灯的采用LYTSwitch-7系列10W 88%效率TRIAC调光LED驱动器参考设计DER586主要特性和指标,电路图,材料清单和PCB设计图.
The LYTSwitch™-7 family is ideal for single-stage, high PF, constant current LED dimmable applications.
The family incorporates a high-voltage MOSFET with a variable on-time CrM controller. Extensive protection features with minimum external components provide industry leading power density and functionality.
The CrM operation results in low turn-on losses and reduces cost of output diode (slower reverse-recovery type can be used).
LYTSwitch-7 devices are suitable for applications from 4 W to 22 W. For more information, see Application section. LYTSwitch-7 peak current mode operation is suitable for TRIAC applications without the need for an active bleeder.
LYTSwitch™-7系列产品亮点:
Single-Stage PFC + Accurate CC Output
±3% CC regulation in single line input voltage applications ..
