STMicroelectronics Evaluation Board Power Management for L6564 for Low Power Applications

The STEVAL-ISA142V1 product evaluation board implements a 50 W, wide-range mains input, power factor-corrected power supply suitable for all low power applications requiring a high power factor, such as lighting applications and LED power supplies. Use of the low-cost L6564 combined with simple flyback topology provide a very competitive solution.

• Line voltage range: 90 to 265 VAC
• Minimum line frequency (fl): 47-63 Hz
• Minimum switching frequency: 44 KHz
• Reflected voltage: 140 V
• Regulated output voltage: 24 V
• Rated output power: 50 W
• Power factor (load ≥ 50%): 0.9 minimum
• Minimum efficiency at full load: 88%
• Maximum 2 fl output voltage ripple: 1.1 V pk-pk (VIN=230 VAC, Pout=50 W)
• Maximum ambient temperature: 50 °C
• PCB type and size: single-sided, 35 um, CEM-1, 140 x 60 mm