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AN2755 Datasheet(PDF) 20 Page - STMicroelectronics

Part # AN2755
Description  400 W FOT-controlled PFC pre-regulator with the L6562A
PDF  24 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN2755 Datasheet(HTML) 20 Page - STMicroelectronics

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PFC coil specification
AN2755
20/24
8
PFC coil specification
8.1
General description and characteristics
●
Application type: consumer, home appliance
●
Inductor type: open
●
Coil former: vertical type, 6+6 pins
●
Max. temp. rise: 45 ºC
●
Max. operating ambient temperature: 60 ºC
8.2
Electrical characteristics
●
Converter topology: boost PFC pre-regulator, FOT control
●
Core type: PQ40-30 material grade PC44 or equivalent
●
Max. operating frequency: 100 kHz
●
Primary inductance: 500
µH 10 % at 1 kHz - 0.25 V (a)
●
Primary RMS current: 4.75 A
Figure 28.
Electrical diagram
a.
Measured between pins 1-2 and 5-6
Table 3.
Winding characteristics
Start pins
End pins
Number
of turns
Wire type
Wire
diameter
Notes
11
8
5 (spaced)
Single – G2
0.28Ø
Bottom
5 - 6
1 - 2
65
Multistrand – G2
Litz 0.2Ø x 30
Top
1 - 2
5 - 6
11
8
Primary
Auxiliary



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