Datasheet

AN3172 Thermal map
Doc ID 17230 Rev 1 19/31
Table 3. Thermal maps reference points
Point Reference Description
A L1 EMI filtering inductor
B D1 Bridge rectifier
C L2 PFC inductor – hottest point
D D4 PFC output diode
E Q1 PFC MOSFET
F - G Q3 & Q4 Resonant HB MOSFETs
H - I T1 Resonant power transformer
J - K D23 & D24 Output rectifiers