EVL90WADP-LLCSR STMicroelectronics, EVL90WADP-LLCSR Datasheet - Page 17

• 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

AN3014
5
Thermal map
In order to check design reliability, thermal mapping by means of an IR camera was done.
Below, thermal measurements of the component side of the board at nominal input voltage
are shown. The pointers on the images have been placed across key components. The
ambient temperature during both measurements was 27 °C.
Figure 16. Thermal map at 115 Vac - 60 Hz - full load
Figure 17. Thermal map at 230 Vac - 50 Hz - full load
Table 4.
The pictures highlight that although both the synchronous rectifier MOSFETs at secondary
side are working without a heatsink, their operating case temperature is lower than 60 °C.
Point
G
A
B
C
D
E
F
Thermal map reference points
Doc ID 16064 Rev 2
Reference
Q11
D1
D4
Q3
T1
L1
L2
Output rectifier MOSFETs (hottest spot)
Resonant high-side MOSFET
Resonant power transformer
EMI filtering inductor
PFC output diode
Bridge rectifier
PFC inductor
Description
Thermal map
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