STEVAL-ISA142V1 Datasheet, PDF (1/4 Pages) STMicroelectronics – Minimum switching frequency

STEVAL-ISA142V1
50 W, wide-range, high power factor flyback converter using the
L6564
Data brief
Description
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.
Features
• 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 (V_IN=230 V_AC, P_out=50 W)
• Maximum ambient temperature: 50 °C
• Conducted EMI: in accordance with
EN55022 class-B
• PCB type and size: single-sided, 35 um,
CEM-1, 140 x 60 mm
• RoHS compliant
November 2013
DocID025413 Rev 1
For further information contact your local STMicroelectronics sales
office
1/4
www.st.com