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NCP1207A Datasheet(PDF) 3 Page - ON Semiconductor

Part # NCP1207A
Description  PWM Current-Mode Controller
Download  18 Pages
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

NCP1207A Datasheet(HTML) 3 Page - ON Semiconductor

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NCP1207A, NCP1207B
www.onsemi.com
3
Figure 2. Internal Circuit Architecture
+
VCC
HV
GND
Drv
Demag
+
Fault
Mngt.
+
7.0
mA
To Internal
Supply
+
12 V, 10 V,
5.3 V (fault)
PON
4.5/1.5
ms
Delay
+
+
5.0 V
OVP
/1.44
8/4.5
ms
Blanking
+
5.0
ms
Timeout
Demag
Demag
Overload?
Timeout
Reset
S
R
S*
Q
R*
Q
380 ns
L.E.B.
/3
1.0 V
10 V
50 mV
CS
FB
200
mA
when Drv
is OFF
Driver: src = 20
sink = 10
*S and R are level triggered whereas S is edge
triggered. R has priority over the other inputs.
VCC
Resd
Rint
4.2 V
Soft−Start = 1 ms
+
+
VUVLO


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