The board is notable for its slim form factor, the result of the innovative use of magnetic components. It also offers a high power factor of more than 0.95, matched by total harmonic distortion below 10%. The board provides isolation against over-voltages of up to 4kV.
Primary-side regulation of the output voltage, controlled by ST’s HVLED001A, helps to lower the system’s bill-of-materials cost, since it reduces the need for costly optocouplers. The precise operation of the HVLED001A controller and the innovative structure of the transformer make for highly accurate output-voltage regulation against load and line changes. At the same time, the STEVAL-ILL076V2 achieves very high efficiency at full load of higher than 92%.
The board accepts a universal mains input-voltage range of 90V to 264V AC, providing a power output of up to 18W at a voltage of 56V. When operating only from a European mains voltage, it can provide an output of up to 40W.
- No-load power consumption
- Short-circuit protection with auto-restart
- Complies with EN55022 (B) limits for conducted EMI
- Complies with EN60950 safety requirements
- Isolated bus power supply for LED driver