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NCP1237 Datasheet(PDF) 21 Page - ON Semiconductor

Part # NCP1237
Description  Fixed Frequency Current Mode Controller for Flyback Converters
PDF  41 Pages
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

NCP1237 Datasheet(HTML) 21 Page - ON Semiconductor

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NCP1237
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21
Figure 47. AC Input Line Overvoltage Timing Diagram
time
VHV
time
One Shot
time
DRV
VHV(OV1)
OVP
detected
HV
timer
starts
Blanked
voltage
surge
HV
timer
restarts
Restarts at
VCC(on)
VHV(OV2)
HV
t



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