EVALSTSR30-60W STMicroelectronics, EVALSTSR30-60W Datasheet - Page 18

• 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
5
Thermal measurements
A thermal analysis of the board was performed using an IR camera. The results are shown
in
load condition.
Figure 25. V
Table 9.
Figure 25
–
–
T
Emissivity = 0.9 for all points
AMB
and
Point
Key components temperature at 115V
IN
G
A
B
C
D
E
H
F
I
= 28°C for both figures
= 115V
Figure 26
AC
- full load
for 115V
AC
and 230V
Temp [°C]
88.2
81.6
87.8
80.3
60.0
46.1
64.2
55.1
54.7
AC
mains input. Both images refer to full
AC
- full load
Thermal measurements
Q1 (SR MOS)
T1 (windings)
D7 (bridge)
D8 (clamp)
T1 (ferrite)
NTC1
Ref
Q3
C8
L2
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