EVL250W-ATX80PL STMicroelectronics, EVL250W-ATX80PL Datasheet - Page 20

• Manufacturer Part Number: EVL250W-ATX80PL
• Description: BOARD DEMO SMPS L6591/L6563S
• Manufacturer: STMicroelectronics
• Series: VIPer™ plusr

Specifications of EVL250W-ATX80PL

• Main Purpose: Power Supply, ATX
• Outputs And Type: 3, Isolated
• Power - Output: 250W
• Voltage - Output: 12V, 5V, 3.3V
• Current - Output: 13.5A, 12A, 8A
• Voltage - Input: 88 ~ 264VAC
• Regulator Topology: Flyback
• Frequency - Switching: 80kHz
• Board Type: Fully Populated
• Utilized Ic / Part: L6563S, L6591, L6727, VIPer27H
• Input Voltage: 88 VAC to 264 VAC
• Output Voltage: 3.3 V, 5 V, 12 V
• Maximum Operating Temperature: + 60 C
• Operating Supply Voltage: 80 VAC to 264 VAC
• Output Power: 250 W
• Product: Power Management Development Tools
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: L6563S PFC controller
• Other names: 497-10596

Electrical performance
20/45
This demonstration board is compliant with the 80 PLUS
please refer to
Similar levels of efficiency and power factor are defined also by the Climate Savers
Computing Initiative. According to the measurements carried out, the demonstration board
is compliant with “Climate Savers Computing Silver” level.
Table 4.
Table 5
kept low, therefore only the auxiliary stage is active and only the +5 V_SB output is present.
The board showed very good values (below 200 mW over the whole input voltage range),
especially when considering that the inactive stages have a certain residual consumption
(only the voltage dividers in the input stage waste about 100 mW @ 230 Vac).
Table 5.
Figure 14
graph of the input power vs. input voltage with no-load applied.
Figure 14. Efficiency vs. O/P power
condition
100 %
Load
20 %
50 %
Pin [mW]
Vin [Vac]
shows the no-load consumption. These values are taken with the signal PS_ON
shows the graph of the efficiency vs. output power while
Climate Savers Computing Initiative
No-load consumption
Table
Efficiency
8).
82 %
85 %
82 %
Bronze
90
59
Doc ID 17402 Rev 1
0.95
0.8
0.9
PF
115
70
Efficiency
85 %
88 %
85 %
135
82
Silver
®
Silver specifications (for PF data
0.95
180
113
0.8
0.9
PF
Figure 15
Efficiency
230
161
87 %
90 %
87 %
Gold
shows the
AN3203
264
199
0.95
0.8
0.9
PF