EVALSTSR30-60W STMicroelectronics, EVALSTSR30-60W Datasheet - Page 12

• Manufacturer Part Number: EVALSTSR30-60W
• Description: BOARD EVAL USING L6668 & STSR30
• Manufacturer: STMicroelectronics
• Type: AC/DC Switching Convertersr

Specifications of EVALSTSR30-60W

• Mfg Application Notes: EVALSTSR30-60W AppNote
• Main Purpose: AC/DC, Primary and Secondary Side
• Outputs And Type: 1, Isolated
• Power - Output: 60W
• Voltage - Output: 12V
• Current - Output: 5A
• Voltage - Input: 88 ~ 264VAC
• Regulator Topology: Flyback
• Frequency - Switching: 68kHz
• Board Type: Fully Populated
• Utilized Ic / Part: L6668, STSR30
• Input Voltage: 88 V to 264 V
• Output Voltage: 12 V
• Dimensions: 120 mm x 75 mm
• Product: Power Management Modules
• Silicon Manufacturer: ST Micro
• Silicon Core Number: L6668 And STSR30
• Kit Application Type: Power Management - Voltage Regulator
• Application Sub Type: SMPS
• Kit Contents: Board
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: L6668, STSR30
• Other names: 497-6389; EVALSTSR30-60W

AN2432
Table 6.
Table 7.
1. Efficiency measured at 25%, 50%, 75% and 100% of rated load and then averaged
Another important measurement is the efficiency improvement given by the synchronous
rectification with respect to a standard (diode rectification) flyback. The test was performed
using a STPS8H100 Schottky diode instead of the SR MOSFET. The results are shown in
Table
3.52% at 115V
Table 8.
COC (Code Of
Commission
Energy Star
Load [A]
Australian
European
California
program
program
Conduct)
Value
Energy
Energy
Energy
(CEC)
China
Union
China
8. In a load range from 20% to 100% of the rated load, the average efficiency rise is
1
2
3
4
5
Mandatory energy saving requirements (from 1 January 2008)
Voluntary energy saving requirements (from 1 January 2008)
Comparison between standard and SR flyback
AC
Average var @ 115V
86.54%
87.73%
88.28%
86.95%
86.44%
Eff
Pin no load
Pin no load
and 3.75% at 230V
< 0.75 W
< 0.75 W
< 0.5 W
< 0.5 W
< 0.5 W
< 0.3 W
SR
V
IN
83.30%
83.98%
84.05%
83.65%
83.34%
= 115V
Eff
diode
(@230V
(@230V
Measure
Measure
0.178 W
0.178 W
AC
RMS
AC
.
AC
AC
+3.24%
+3.75%
+4.23%
+3.30%
+3.10%
+3.52%
)
)
Var
Efficiency
Efficiency
> 85%
> 85%
> 82%
> 84%
> 84%
> 85%
Average var @ 230V
85.66%
86.74%
88.97%
88.63%
89.38%
Eff
SR
(@115V
(@115V
(@115V
(@115V
(@115V
(@115V
Measure
Measure
V
86.44%
86.44%
86.44%
87%
87%
87%
IN
Electrical performance
82.26%
83.62%
84.80%
84.98%
84.97%
= 230V
Eff
(1)
(1)
(1)
AC
AC
AC
AC
AC
AC
diode
)
)
)
)
)
)
AC
RMS
Compliant
Compliant
+3.40%
+3.12%
+4.17%
+3.65%
+4.41%
+3.75%
Yes
Yes
Yes
Yes
Yes
Yes
Var
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