EVL90WADP-LLCSR STMicroelectronics, EVL90WADP-LLCSR Datasheet - Page 10

• Manufacturer Part Number: EVL90WADP-LLCSR
• Description: EVAL BOARD PORTABLE PWR SUPPLY
• Manufacturer: STMicroelectronics
• Type: Power Factor Correctionr

Specifications of EVL90WADP-LLCSR

• Main Purpose: AC/DC, Primary and Secondary Side with PFC
• Outputs And Type: 1, Isolated
• Power - Output: 90W
• Voltage - Output: 19V
• Current - Output: 4.75A
• Voltage - Input: 90 ~ 264VAC
• Regulator Topology: Boost
• Frequency - Switching: 130kHz
• Board Type: Fully Populated
• Utilized Ic / Part: L6563H, L6599A, SRK2000
• Input Voltage: 90 V to 264 V
• Output Voltage: 19 V
• Dimensions: 65 mm x 155 mm
• Product: Power Management Modules
• Supply Current: 4.75 A
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: L6563H, L6599A, SRK2000
• Other names: 497-10377

Efficiency measurement
2
Table 1.
Table 2.
10/29
100% load eff.
100% load eff.
25% load eff.
50% load eff.
75% load eff.
25% load eff.
50% load eff.
75% load eff.
Average eff.
Average eff.
No load
Test
Test
Efficiency measurement
EPA rev. 2.0 external power supply compliance verification
Table 1
mains voltages. At 115 Vac the average efficiency is 91.27%, while at 230 Vac it is 92.22%.
Both values are much higher than the 87% required by the EPA rev 2.0 external power
supply limits.
Even at no-load, the board performances are superior: maximum no-load consumption at
nominal mains voltage is 260 mW only. This value is significantly lower than the limit
imposed by the ENERGY STAR
Overall efficiency
Efficiency comparison between diode rectification and synchronous
rectification
In
LLCSR board, and the other is an identical board but with diode rectification (two
STPS10L60 devices). In this way, a direct indication of the efficiency improvement obtained
with the new synchronous rectification solution is obtained.
Efficiency comparison
Table
18.98
18.97
18.95
18.94
18.92
Vout
Eff. with
87.49%
91.52%
92.58%
92.84%
91.11%
[V]
diodes
shows the no-load consumption and overall efficiency, measured at the nominal
2, the efficiency of two different designs are compared. One is the EVL90WADP-
[mA]
1187
2375
3565
4756
0.00
Iout
230 V-50 Hz
230 V-50 Hz
SRK2000
Eff. with
88.45%
92.42%
93.82%
94.19%
92.22%
22.52
45.01
67.52
89.99
Pout
0.00
[W]
Doc ID 16064 Rev 2
25.46
48.70
71.96
95.54
0.26
®
Pin
[W]
program, which is 500 mW.
Variation
0.96%
0.90%
1.24%
1.35%
1.11%
88.45%
92.42%
93.82%
94.19%
92.22%
Eff.
[%]
-
18.98
18.97
18.95
18.94
18.92
Vout
Eff. with
[V]
88.24%
90.85%
91.16%
91.00%
90.31%
diodes
[mA]
1187
2374
3565
4758
0.00
Iout
115 V-60 Hz
115 V-60 Hz
SRK2000
Eff. with
88.57%
91.77%
92.38%
92.34%
91.27%
22.51
44.99
67.50
90.02
Pout
0.00
[W]
25.41
49.03
73.06
97.48
0.23
[W]
Pin
Variation
0.33%
0.91%
1.23%
1.34%
0.95%
AN3014
88.57%
91.77%
92.38%
92.34%
91.27%
Eff.
[%]
-