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AN3233 Datasheet(PDF) 20 Page - STMicroelectronics

Part # AN3233
Description  This application note describes the characteristics
PDF  35 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN3233 Datasheet(HTML) 20 Page - STMicroelectronics

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Thermal map
AN3233
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Doc ID 17595 Rev 1
To directly check the efficiency of the SR stage, a thermal map of the SR daughterboard has
also been taken. As seen, the temperature of both rectifier MOSFETs is below 70 °C,
confirming that heatsinking is not required and confirming that the SR solution implemented
allows a significant secondary side board dimension squeezing.
Figure 22.
Thermal map SR daughterboard - full load
Table 4.
Daughterboard thermal map reference points
Point
Reference
Description
SP1
Q501
SR MOSFET
SP2
Q502
SR MOSFET



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