aerobotics

48 V-130 W high efficiency converter with PFC based on L6562 and L6599 for LED street light applications

STEVAL-ILL053V2

Overview

The STEVAL-ILL053V2 evaluation 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 efficiency; wide input mains range (85-305 V_AC) operation and long-term reliability.
Because mean time between failures (MTBF) in power supplies is typically affected by the high failure rate of common electrolytic capacitors, the STEVAL-ILL053V2 evaluation board offers an innovative design approach using film capacitors from EPCOS in place of electrolytic capacitors.
Thanks to the high efficiency achieved, only a small heatsink for the PFC stage is needed, while the other power components implement surface mount technology (SMT), which significantly lowers costs.
The STEVAL-ILL053V2 evaluation board also provides protection against overload, short-circuit and open-loop in each stage, and overvoltage protection on the input, with auto-restart.

Main features

Extended input mains range: 85 to 305 V_AC - frequency 45 to 55 Hz
Output voltage: 48 V at 2.7 A
Long-life: electrolytic capacitors not used
Mains harmonics in accordance with EN61000-3-2 Class C
Efficiency at full load greater than 91% at 115 V_AC
EMI in accordance with EN55022 Class B; EN55015

Safety: double insulation, in accordance with EN60950, SELV
Dimensions: 75 x 135 mm, 30 mm maximum component height
PCB: single side, 35 μm, FR-4, mixed PTH/SMT
RoHS compliant
WEEE compliant

Design Files

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Update:2025-05-08 20:41:40

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