EVL6562A-35WFLB STMicroelectronics, EVL6562A-35WFLB Datasheet - Page 14

• Manufacturer Part Number: EVL6562A-35WFLB
• Description: BOARD EVAL FOR L6562AX
• Manufacturer: STMicroelectronics
• Type: Power Factor Correctionr

Specifications of EVL6562A-35WFLB

• Main Purpose: Power Management, Power Factor Correction
• Embedded: No
• Utilized Ic / Part: L6562A
• Primary Attributes: 35W, 48V Out, 90 ~ 265VAC In
• Secondary Attributes: Transition Mode
• Input Voltage: 90 V to 265 V
• Output Voltage: 48 V
• Board Size: 120 mm x 82 mm
• Product: Power Management Modules
• Dimensions: 120 mm x 82 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: L6562A
• Other names: 497-8248

Thermal measurements
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Thermal measurements
To check the reliability of the design, thermal mapping by means of an IR camera was
carried out.
the board at nominal input voltages and full load. Some pointers visible on the pictures
placed across key components show the relevant temperature.
correlation between the measured points and components, for both thermal maps. The
ambient temperature during both measurements was 27 °C. According to these
measurement results, all components on the board function within their temperature limits.
Table 2.
Figure 20. Thermal map at 90 V
Transformer TR1 (bobbin)
Transformer TR1 (core)
Secondary diode D5
Diode bridge D1
MOSFET Q1
Component
Transil D2
Choke T1
Choke T2
Figure 20
Measured temperature @ 90 V
load
and
Figure 21
Temperature @ 90 V
AC
show thermal measurements on the component side of
- full
57.8 °C
58.9 °C
54.5 °C
55.7 °C
65.9 °C
64.3 °C
56 °C
70 °C
AC
Figure 21. Thermal map at 265 V
and 265 V
AC
AC
load
- full load
Table 1
Temperature @ 265 V
provides the
36. 2 °C
43.8 °C
58.1 °C
65.1 °C
38.2 °C
45.6 °C
55 °C
59 °C
AC
AN2838
- full
AC