DER-286: 1A @ 33V Max, 90 ~ 308VAC in

Summary

This document describes an isolated, power factor corrected, very high efficiency LED driver designed to drive an LED string of 30 V at a current of 1 A (both nominal) from an input voltage range of 90 VAC to 308 VAC.

The LED driver uses a LNK419EG 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, to pass >2.5 kV, 1.2 µs / 50 µs differential surge, and meet IEC 61000-3-2 Class C harmonics.

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 1 A
Voltage Out (Max) 33 V
Efficiency @ Conditions >89%, 115 ~ 308 VAC, @ 27, 30 33 V
Features Current Limit (Adj. or Fixed)
Dimming Control
Frequency Jitter for EMI
Open Circuit Protection
PFC
PWM Interface
Short Circuit Protection
Thermal Protection
Switching Frequency 66 kHz
Component Count + Extras 59 + 0
Design Author Power Integrations
Application / Target Market Lighting: LED Commercial Lighting
Lighting: LED Home Lighting
Lighting: LED Signage
Voltage In 90 ~ 308 VAC
Power Factor >0.9
Standard(s) EN55015 B conducted EMI
IEC 61000-3-2 Class C
IEC 61000-4-5 Ringwave
Main I.C. Base Part LNK419
Date Created By Author 2012-03
Date Added To Library 2014-09

Support Documents & Media

LNK403-410/413-420 - Datasheet DER-286 - User Guide

Media

DER_286_Schematic_Full.png DER_286_Schematic_2_Full.png DER_286_Board_1_Full.jpg DER_286_Board_2_Full.jpg DER_286_Chart_1_Full.png DER_286_Chart_2_Full.png