EVL6566B-65W-QR STMicroelectronics, EVL6566B-65W-QR Datasheet - Page 11

• 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
3.2
Table 3.
As observable in this table, the output voltages are still within the given tolerance. The
heavier load does not affect efficiency. Please note that the total output power of
the so-called "electrical power", not the "thermal power". Therefore, the circuit has been
designed to deliver the "electrical power" for a short time only - typically the HDD spin-up
has duration of 1 second - but it cannot be delivered significantly longer because, from the
thermal point of view, the circuit can manage with the required reliability the full load only.
Reduced load operation, without the HDD
This reference board has been designed for powering digital equipment including a hard
disk drive or a DVD but it can be used even for powering a set-top box or any other digital
equipment without the hard disk drive. A typical example could be an auxiliary SMPS of a
large screen flat-TV. The measurements shown in
efficiency measurements in a load condition typical of a satellite set-top box.
The 12 V and 5 V output currents have been reduced with respect to the previous
measurements. As visible the output voltages are within the tolerances and the efficiency is
at the same level of the previous test results.
Table 4.
Voltage [V]
Efficiency =
Efficiency =
Pout [W] =
Pout [W] =
Pin [W] =
Pin [W] =
Voltage
11.75
12.08
1.77
4.83
3.35
1.76
4.99
3.30
EVL6566B-STB-40W efficiency measurement at HDD spin-up
Output voltage measurement at reduced load, without HDD
Vin = 115 Vac-60 Hz
Vin = 115 Vac-60 Hz
Current [A]
75.83 %
Current
78.01%
50.35
26.91
66.4
34.5
2.9
1.7
2.4
0.5
1.1
1.7
1.8
0.5
Doc ID 14630 Rev 2
Deviation
Deviation
-2.08%
-1.67%
-3.40%
-2.22%
-0.20%
1.52%
0.67%
0.00%
Voltage [V]
Efficiency =
Efficiency =
Pout [W] =
Pout [W] =
Pin [W] =
Pin [W] =
Voltage
Table 4
11.66
12.09
1.79
4.85
3.35
1.78
4.99
3.3
provide for the output voltage and
Vin = 230 Vac-50 Hz
Vin = 230 Vac-50 Hz
Current [A]
79.71 %
Current
79.52%
50.17
62.94
26.96
33.9
2.9
1.7
2.4
0.5
1.1
1.7
1.8
0.5
Functional checking
Deviation
Deviation
-2.83%
-0.56%
-3.00%
Table 3
-1.11%
-0.20%
1.52%
0.75%
0.00%
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is