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EVL130W-SL-EU(1): 48V @ 2.7A, 177 ~ 277 VAC

Summary

* For Constant Current, the board must be modified as described on page 6 of the user guide. *

This application note describes the characteristics and features of a 130 W demonstration board (EVL130W-SL-EU), tailored on an LED power supply specification for street lighting.

The circuit is composed of two stages; a front-end PFC using the L6562AT and an LLC resonant converter based on the L6599AT.

The peculiarities of this design are; very high efficiency, extended European input mains range (177-277 VAC) operation, and long term reliability.

Because reliability (MTBF - “Mean Time Between Failures”) in power supplies is typically affected by electrolytic capacitors and their typical high failure rate, unless using very expensive types, this board offers a very innovative design approach as the board doesn't implement any electrolytic capacitors, which are replaced by film capacitors from EPCOS.

Specifications

Manufacturer STMicroelectronics
Category Lighting
Sub-Category LED Drivers - AC / Offline
Eval Board Part Number 497-10540-ND
Eval Board Supplier STMicroelectronics
Eval Board -
AC Voltage 230 V
Outputs and Type 1 Isolated
Current Out 2.7 A
Voltage Out (Max) 48 V
Efficiency @ Conditions >93%, 230V in, Full Load
Features Over Current Protection
Over Voltage Protection
PFC
Short Circuit Protection
Soft Start
Under Voltage Protection, Brown-Out
Switching Frequency 130 kHz
Component Count + Extras 132 + 2
Design Author STMicroelectronics
Application / Target Market LED Street Lighting
Voltage In 177 ~ 277 VAC
Power Factor
Standard(s)
Main I.C. Base Part L6562A
L6599
Date Created By Author
Date Added To Library 2020-06

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