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NCP12510ASN65T1G Datasheet(PDF) 3 Page - ON Semiconductor

Part # NCP12510ASN65T1G
Description  Current-Mode PWM Controller for Off-line Power Supplies
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

NCP12510ASN65T1G Datasheet(HTML) 3 Page - ON Semiconductor

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NCP12510
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3
Figure 2. Internal Circuit Architecture
65 / 100 kHz
Oscillator
Clamp
DRV
VCC and logic
management
VCC
+
VOVP
GND
OPP/
Latch
+
Vlatch
Up Counter
to 4
CS
FB
VFB(open)
Req
Kratio
Frequency
foldback
Rramp
peak current
freeze
Soft-start
+
Vlimit +VOPP
VOPP
Up counter
to 8
Jittering
+
_
RST
tlatch(del)
tlatch(blank)
tOVP(del)
+
Vskip
S
R
Q
Q
Dmax
LEB
Vlimit
+
Fault timer
OCP
Fault
RST
RST
DRV
pulse
VOPP
DRV pulse
R
S
Q
Q
Error
flag
DRV pulse
DRV pulse
Latch / Auto-revery
management
Note: depend on IC
option
OVP/OTP
Latch
VCC(OVP)
IC stop
DRV stop
VCC(OVP)
VCC(min)
IC start
IC stop
IC reset
OCP Fault
OVP/OTP
Latch
Pre-short
Latch / Auto-
recovery mode
DRV stop
Latch / Auto-
recovery mode
Internal
supply
Pre-short
1
st DRV pulse
during IC start
VCC(min)
S
R
Q
Q
(for OCP &UVLO
latched option )
Armed
flag
IC in regulation
FB@gnd
IC in regulation
VCC(on)


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