EVL6566A-75WES4 STMicroelectronics, EVL6566A-75WES4 Datasheet - Page 37

• Manufacturer Part Number: EVL6566A-75WES4
• Description: BOARD DEMO FOR L6563/LL6566A
• Manufacturer: STMicroelectronics
• Type: Power Factor Correctionr

Specifications of EVL6566A-75WES4

• Main Purpose: AC/DC, Primary and Secondary Side with PFC
• Outputs And Type: 1, Isolated
• Power - Output: 75W
• Voltage - Output: 19V
• Current - Output: 4A
• Voltage - Input: 90 ~ 264VAC
• Regulator Topology: Flyback
• Board Type: Fully Populated
• Utilized Ic / Part: L6563, L6566A, TSM1014
• Input Voltage: 90 V to 264 V
• Output Voltage: 19 V
• Dimensions: 78 mm x 170 mm
• Product: Power Management Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Frequency - Switching: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: L6563S, L6566A
• Other names: 497-8834

L6566A
Note:
Figure 22 on page 35
Figure 23 on page 36
To use the OVP function effectively, i.e. to ensure that the OVP comparator will be always
interrogated during MOSFET’s OFF-time, the duty cycle D under open-loop conditions must
fulfill the following inequality:
Equation 12
where T
Figure 24. Maximum allowed duty cycle vs switching frequency for correct OVP
BLANK2
detection
= 2 µs; this is also illustrated in the diagram of
Dmax
shows the internal block diagram, while the timing diagrams in
illustrate the operation.
0.8
0.7
0.6
0.5
0.4
0.3
0.2
5 . 10
4
1 . 10
5
D
1.5 . 10
+
5
T
BLANK
2 . 10
5
fsw [Hz]
2
f
sw
2.5 . 10
≤
1
5
3 . 10
5
Figure 24
3.5 . 10
Application information
5
0.725
4 . 10
.
5
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