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L6563H Datasheet(PDF) 37 Page - STMicroelectronics

Part # L6563H
Description  High voltage start-up transition-mode PFC
PDF  48 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6563H Datasheet(HTML) 37 Page - STMicroelectronics

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L6563H
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Doc ID 16047 Rev 2
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consumption and drops more until the Vccrestart threshold is tripped. Now, the high voltage
start-up generator restarts and when the Vcc crosses again its turn on threshold the IC
starts switching. In this manner the power is transferred from mains to PFC output only
during a short time for each Trep cycle.
Figure 53.
High-voltage start-up behaviour during latch-off protection
Figure 54.
High-voltage start-up managing the dc-dc output short-circuit



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