DER-284: 500mA @ 33V Max, 90 ~ 265VAC in

Summary

This document describes an isolated, power factor corrected, very high efficiency LED driver designed to drive a 30 V LED string at a current of 500 mA (nominal). The input voltage range is 90 VAC to 265 VAC.

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

The key design goals were to achieve the highest possible efficiency and eliminate electrolytic capacitors. Both are key factors for increasing the lifetime and reliability of LED drivers making this solution ideal for industrial and commercial applications.

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

Specifications

Manufacturer Power Integrations
Category Lighting
Sub-Category LED Drivers - AC / Offline
Eval Board Board not Stocked
AC Voltage 115 V
230 V
Universal
Outputs and Type 1 Isolated
Current Out 500 mA
Voltage Out (Max) 33 V
Efficiency @ Conditions >90%, 105 ~ 265 VAC, @ 33 V
>90%, 103 ~ 265 VAC, @ 30 V
>90%, 100 ~ 265 VAC, @ 27 V
Features Current Limit (Adj. or Fixed)
Dimming Control
Frequency Jitter for EMI
Open Circuit Protection
PFC
PFM or PWM
Short Circuit Protection
Thermal Protection
Switching Frequency 66 kHz
Component Count + Extras 46 + 0
Design Author Power Integrations
Application / Target Market Lighting: LED Commercial Lighting
Lighting: LED Home Lighting
Lighting: LED Signage
Voltage In 90 ~ 265 VAC
Power Factor >0.9
Standard(s) EN55015 B conducted EMI
IEC 61000-3-2 Class C
IEC 61000-4-5 Ringwave
IEC950
UL1950 Class II
Main I.C. Base Part LNK417
Date Created By Author 2012-08
Date Added To Library 2025-11

Support Documents & Media

LNK403-410/413-420 - Datasheet DER-284 - User Guide

Media

DER_284_Schematic_Full.png DER_284_Board_1_Full.jpg DER_284_Board_2_Full.jpg DER_284_Chart_1_Full.png DER_284_Chart_2_Full.png DER_284_Chart_3_Full.png