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

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Parameter NameParameter Value
Target ApplicationLED Lighting
Core ProductL6562AT, L6599AT, STD11N60M2-EP, STF25N60M2-EP
Packing TypeNot Applicable
RoHs compliantEcopack2
Package NameCARD

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 VAC) 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.

Key features
  • Extended input mains range: 85 to 305 VAC -
    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 VAC
  • 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