Powerint LNK417EG 15W LED驱动解决方案(DER289)

Powerint公司的15W LED驱动器采用LinkSwitchTM-PH LNK417EG器件和±3% CC调整,具有高效率,功率因素大于0.9,AC输入电压90V-265V,满足IEC 61000-4-5环形波, IEC 61000-3-2 Class C谐波和EN55015 B接触EMI要求,起动时间小于100ms.本文介绍了该驱动器主要特性和指标, 驱动器和子板电路图以及相应的材料清单与PCB布局图.

This document describes an isolated, power factor corrected, very high efficiency LED driver (non-dimmable) designed to drive an LED string of 30 V at a current of 500 mA(both nominal) from an input voltage range of 90 VAC to 265 VAC. The design employs a secondary side current feedback circuit to achieve less than 3% output current regulation over line and load. A reference board DER-284 was used with the secondary constant current regulation daughter board added to demonstrate how this technique can be used on and LinkSwitch-PH flyback design.

The LED driver uses a LNK417EG device from the LinkSwitch-PH family of ICs. This integrated controller and 725 V MOSFET dramatically reduces complexity and omponent count.

This document contains the LED driver specification, schematic, and bill of material,transformer documentation and typical performance characteristics.

15W LED驱动器主要特性:

≤3% output current regulation over line and load
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