EVL6566A-75WADP STMicroelectronics, EVL6566A-75WADP Datasheet - Page 4

• Manufacturer Part Number: EVL6566A-75WADP
• Description: BOARD EVAL FOR L6566A
• Manufacturer: STMicroelectronics
• Type: Power Factor Correctionr

Specifications of EVL6566A-75WADP

• 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
• Frequency - Switching: 65kHz
• 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 174 mm
• Product: Power Management Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Regulator Topology: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: L6563, L6566A
• Other names: 497-6449

Light load condition (fold back frequency)
3
4/8
Figure 4.
CH1: drain 6566A
CH2: gate 6566A
Light load condition (fold back frequency)
To improve the efficiency at light load, a frequency shifting has been implemented on the
board. Thus, at decreasing load, the frequency also decreases.
show the drain and gate fly-back waveforms and the relevant switching frequency with a
load of 0.2 A.
Table 2
different voltage inputs with the fold back network plugged in.
Table 2.
L6566A fly-back stage
waveforms at 115 V-60 Hz 0.2 A
Efficiency
Pout
Pin
below shows the efficiency when we set the power input with 2.4 or 1.7 W in two
Standby consumption
62.9%
2.40
1.51
Vin = 230 V
Light load condition
Figure 5.
CH1: drain 6566A
CH2: gate 6566A
62.7%
1.69
1.06
L6566A fly-back stage
waveforms at 230 V-50 Hz full load
70.5%
2.41
1.70
Figure 4
Vin = 115 V
EVL6566A-75WADP
and
Figure 5
66.7%
1.71
1.14
below