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AV45C датащи(PDF) 17 Page - Astec America, Inc

номер детали AV45C
подробное описание детали  1.5V, 1.8V, 3.3V, 5V Single Output 48V Input, 100W DC-DC Converter
PDF  25 Pages
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производитель  ASTEC [Astec America, Inc]
домашняя страница  http://www.astecinc.com/
Logo ASTEC - Astec America, Inc

AV45C датащи(HTML) 17 Page - Astec America, Inc

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USA
Europe
Asia
TEL:
1-760-930-4600
44-(0)1384-842-211
852-2437-9662
FAX:
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44-(0)1384-843-355
852-2402-4426
www.astec.com
a
π filter. The recommended value of the capac-
itor C1 can refer to the T
Typical Application
ypical Application
on page 3.
Also when a filter inductor is connected in
series with the power converter input or when
the input wiring is long (since the wiring can act
as an inductor), an input capacitor C1 should be
added. Failure to use an input capacitor under
these conditions can produce large input volt-
age spikes and an unstable output.
For conditions where EMI is a concern, Figure
4 shows an input filter designed to reduce EMI
effects.
CNT Function
CNT Function
Two CNT logic options are available. The CNT
logic, CNT voltage and the module working
state is as the following Table 2.
N--- means “Negative Logic”
P--- means “Positive Logic”
L--- means “Low Voltage”, -0.7V [ L [ 1.8V
H--- means “High Voltage”, 3.5V [ H [ 15V
ON--- means “module is on”
OFF--- means “module is off”
Open--- means “ CNT pin is left open ”
Note: The VCNT [ 15V
The following figure 5 to 8 are a few simple
CNT circuits.
Safety Consideration
Safety Consideration
For safety-agency approval of the system in
which the power module is used, the power
+Vin
-Vin
C1
Fig.3 Ripple Rejection Input Filter
+Vin
-Vin
+Vo
-Vo
C6
100
µ
C3
2200P
C10
2200P
C4
2200P
C11
2200P
L1
2.5mH
C7
100
µ
C5
2200P
C12
2200P
C8
1000
µ
C9
4700P
C1
2200P
C2
2200P
C13
2200P
C14
2200P
Fig.4 EMI Reduction Input Filter
-Vin
CNT
-Vin
CNT
-Vin
CNT
-Vin
CNT
Fig.8 Relay CNT Control
Fig.5 Simple CNT Control
Fig.6 Transistor CNT Control
Fig.7 Isolated CNT Control
T
Table 2
able 2
L
H
Open
N
ON
ON
OFF
OFF
OFF
OFF
P
OFF
OFF
ON
ON
ON
ON



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