For further information contact your local STMicroelectronics sales office.

October 2012

Doc ID 023798 Rev 1

1/4

4

STEVAL-ILL053V1

48 V - 130 W high efficiency converter with PFC for LED street

lighting applications based on L6562 and L6599

Data brief

Features

frequency 45 to 55 Hz

EN61000-3-2 Class C

EN55015

EN60950, SELV

component height

PTH/SMT

Description

The STEVAL-ILL053V1 demonstration board

implements a 130 W LED power supply 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 strengths of this design are its very high

operation and long-term reliability.

Because reliability MTBF (mean time between

failures) in power supplies is typically affected by

the high failure rate of electrolytic capacitors,

unless using very high-end, expensive types, the

STEVAL-ILL053V1 demonstration board offers an

innovative design approach using film capacitors

from EPCOS in place of electrolytic capacitors.

Thanks to the high efficiency achieved, just a

small heatsink for the PFC stage is needed, while

the other power components employ SMT

(surface mount technology), like most of the

passive components, thereby decreasing

production labor cost.

The STEVAL-ILL053V1 demonstration board also

provides protection against overload or short-

circuit, open-loop by each stage, or input

overvoltage, with auto-restart.

www.st.com