Evaluation Board using the L6564, 50W Wide-range High Power Factor Flyback Converter
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.
The L6564 device is a current mode PFC controller operating in transition mode (TM) and represents the compact version of the L6563S device as it embeds the same driver, reference and control stages in a very compact 10-pin SSOP10 package. The highly linear multiplier, along with a special correction circuit that reduces crossover distortion of the mains current, allows wide range mains operation with an extremely low THD even over a large load range.
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 (VIN=230 VAC, Pout=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
Ships With
- Evaluation Board