Powerint LNK460KG 20W LED驱动方案(DER337)

Powerint公司的LinkSwitch-PL系列产品集成了725V功率MOSFET,间断模式可变频率可变开态时间控制器,频率抖动器,逐个周期的限流和滞后热关断等功能,具有高效率和高功率因素,它的控制算法提供无闪烁TRIAC调光,而外接元件最少.本文介绍了LNK460KG产品亮点,方框图,典型应用电路,替代A19白炽灯5W 15V LED驱动电路图以及20W LED驱动演示板主要特性和指标,电路图,材料清单和PCB元件布局图.

High Efficiency (>90%), High Power Factor (>0.97), Low A-THD (<15%), 20 W Output Non-Isolated Buck LED Driver Using LinkSwitchTMPL LNK460KGHigh Efficiency (>90%), High Power Factor (>0.97), Low A-THD (<15%), 20 W Output Non-Isolated Buck LED Driver Using LinkSwitchTMPL LNK460KG

The LinkSwitch-PL family enables a very small and low cost single-stage power factor corrected constant current driver for solid state lighting. Optimized for direct LED current sensing, the LinkSwitch-PL operates over a wide input voltage range delivering an output power of up to 16 W. The LinkSwitch-PL control algorithm provides flicker-free TRIAC dimming with minimal external components.
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