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AN4077 Datasheet(PDF) 2 Page - STMicroelectronics

Part # AN4077
Description  100 W transition-mode PFC pre-regulator with the new L6564H
PDF  33 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN4077 Datasheet(HTML) 2 Page - STMicroelectronics

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Contents
AN4077
2/33
Doc ID 022997 Rev 1
Contents
1
Main characteristics and circuit description . . . . . . . . . . . . . . . . . . . . . 5
2
Electrical diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3
Bill of material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4
Test results and significant waveforms . . . . . . . . . . . . . . . . . . . . . . . . 10
4.1
Harmonic content measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.2
Inductor current in TM and L6564H THD optimizer . . . . . . . . . . . . . . . . . 12
4.3
Voltage feed-forward and brownout function . . . . . . . . . . . . . . . . . . . . . . 15
4.4
PFC_OK pin and feedback failure (open loop) protection . . . . . . . . . . . . 20
4.5
Power management and housekeeping functions . . . . . . . . . . . . . . . . . . 21
5
High-voltage startup generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6
Layout hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7
EMI filtering and conducted EMI pre-compliance measurements . . . 27
8
PFC coil specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
8.1
General description and characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . 29
8.2
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
8.3
Electrical diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
8.4
Winding characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
8.5
Mechanical aspect and pin numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
8.6
Unit identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
9
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
10
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32



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