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NCP1560 Datasheet(PDF) 3 Page - ON Semiconductor

Part No. NCP1560
Description  Full Featured Voltage Mode PWM Controller
Download  18 Pages
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

NCP1560 Datasheet(HTML) 3 Page - ON Semiconductor

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NCP1560
http://onsemi.com
3
Figure 2. NCP1560 Functional Block Diagram
+
-
+
5.0 V Reference
Vin
GND
VEA
Delay
Logic
OUT1
-
+
-
+
-
+
CS
S
R
Q
CSS
10
5
14
16
1
11
12
RD
STOP
STOP
Vin
13.8 mA
Disable
CCSKIP
11 V/7 V
Clock
Disable_ss
S
R
Q
Monotonic
Start
(250 ns)
Disable_ss
CAUX
DIS
VAUX
VAUX
OUT2
VAUX
15
13
VAUX
10 pF
FF Ramp
(Adjustable)
* Trimmed during
manufacturing to obtain
1.3 V with RT = 101 kW
Vin
RFF
FF
4
+
CURRENT MIRROR
-
+
RT
2 V
10 pF
I1
+
-
-
2 V
7
Oscillator Ramp
2 V
+
-
DIS
DIS
8
+ -
2 V
Max DC
Comparator
PWM
Comparator
+
-
Soft Start
Comparator
0.5 V
+
-
0.6 V
+
-
SS
9
One Shot
Pulse
-
+
6
CSKIP
3.6 V
1.49 V
2
UV/OV
-
+
2 V
+
-
One Shot
Pulse
+
-
+
-
I1
2
+
-
1.3 V*
VREF
tD
-
20 k
W
40 k
W
VREF
DCMAX
2 k
W
32 k
W
27 k
W
5.3 k
W
6.7 k
W
+
VDC(inv)
-
RMDP
RP
CFF
Disable_VREF
Disable_VREF
IFF
Disable
11
mA
+
V
-
-
+
I
+
V
125 k
W
RT
(600 ns)
One Shot
Pulse
Clock
VREF
VREF
Output
Latch
(Reset
Dominant)
Latch
(Reset
Dominant)


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