EVL6566B-65W-QR STMicroelectronics, EVL6566B-65W-QR Datasheet - Page 9

• Manufacturer Part Number: EVL6566B-65W-QR
• Description: BOARD EVAL SMPS FOR L6566B
• Manufacturer: STMicroelectronics
• Type: Power Factor Correctionr

Specifications of EVL6566B-65W-QR

• Main Purpose: AC/DC, Primary Side
• Outputs And Type: 1, Isolated
• Power - Output: 65W
• Voltage - Output: 700V
• Voltage - Input: 8 ~ 23 V
• Regulator Topology: Flyback
• Frequency - Switching: 100kHz
• Board Type: Fully Populated
• Utilized Ic / Part: L6566B
• Input Voltage: 90 V to 265 V
• Output Voltage: 1.8 V to 12 V
• Board Size: 150 mm x 75 mm
• Product: Power Management Modules
• Dimensions: 150 mm x 75 mm
• Lead Free Status / RoHS Status: Lead free by exemption / RoHS compliant by exemption
• Current - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: L6566B
• Other names: 497-10165

AN2749
3
3.1
Figure 3.
CH1: drain voltage
CH2: L6566B pin#7 (CS)
Functional checking
Full-load operation
The following waveforms during normal operation at full load at different input voltages are
shown for user reference:
Figure 3
waveforms are taken at 230 Vac. From the drain waveform it is possible to note that the
transformer is working in continuous mode. This operating mode has been chosen in order
to optimize the output filter capacitors and the peak-to-rms ratio of the current flowing in the
transformer windings. The measured switching frequency is 61 kHz. In
voltage peak at full load and maximum input mains voltage has been measured. The
maximum voltage peak in this condition is 530 V, ensuring a reliable operation of the
MOSFET with good margin against its maximum BV
EVL6566B-40WSTB waveforms at
115 Vac-60 Hz - full load
shows the drain voltage and current waveforms at 115 Vac while in
Doc ID 14630 Rev 2
Figure 4.
CH1: drain voltage
CH2: L6566B pin#7 (CS)
DSS
EVL6566B-40WSTB waveforms at
230 Vac-50 Hz - full load
.
Functional checking
Figure
Figure 4
5, the drain
the
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