NCP1237 ONSEMI [ON Semiconductor], NCP1237 Datasheet - Page 30
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NCP1237
Manufacturer Part Number
NCP1237
Description
Fixed Frequency Current Mode Controller for Flyback Converters
Manufacturer
ONSEMI [ON Semiconductor]
Datasheet
1.NCP1237.pdf
(34 pages)
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Quantity
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Manufacturer:
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NCP1237
STATE DIAGRAMS
HV Startup Current Source
V
> V
CC
CC(inhibit)
I
start1
No TSD
I
start2
V
< V
CC
CC(inhibit)
TSD
TSD
Stop
TSD
V
< V
CC
CC(min)
V
> V
CC
CC(on)
TSD
Off
Figure 28. HV Startup Current Source State Diagram
http://onsemi.com
30