Powerint LNK405EG 15W PAR38 TRIAC调光LED驱动方案(DER-281)
Powerint公司的DER-281是采用LNK405EG的15W PAR38 TRIAC调光无闪烁的LED驱动器参考设计,输入电压180VAC到265VAC,输出电压30V/0.5A,满负载的效率达到83%,EMI和IEC 61000-4-5 ringwave, IEC 61000-3-2 Class C以及EN55015 B标准兼容.本文介绍了LED驱动器参考设计的主要指标,主板和子板电路图,材料清单和PCB元件布局图.
The document describes a high power factor (PF) TRIAC dimmable LED driver designed to drive a nominal LED string voltage of 30 V at 0.5 A from an input voltage range of 180 VAC to 265 VAC. The LED driver utilizes the LNK405EG from the LinkSwitch-PH family of ICs.
LinkSwitch-PH ICs allow the implementation of cost effective and low component count LED drivers which both meet power factor, harmonic limits and offer enhanced end user experience. This includes ultra-wide dimming range, flicker-free operation (even with low cost with AC line TRIAC dimmers) and fast, clean turn on.
..
