数据搜索系统，热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

预览 PDF HTML

AV45C 数据表(PDF) 21 Page - Astec America, Inc

部件名 AV45C
功能描述  1.5V, 1.8V, 3.3V, 5V Single Output 48V Input, 100W DC-DC Converter
PDF  25 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  ASTEC [Astec America, Inc]
网页  http://www.astecinc.com/
标志 ASTEC - Astec America, Inc

AV45C 数据表(HTML) 21 Page - Astec America, Inc

Back Button AV45C Datasheet HTML 17Page - Astec America, Inc AV45C Datasheet HTML 18Page - Astec America, Inc AV45C Datasheet HTML 19Page - Astec America, Inc AV45C Datasheet HTML 20Page - Astec America, Inc AV45C Datasheet HTML 21Page - Astec America, Inc AV45C Datasheet HTML 22Page - Astec America, Inc AV45C Datasheet HTML 23Page - Astec America, Inc AV45C Datasheet HTML 24Page - Astec America, Inc AV45C Datasheet HTML 25Page - Astec America, Inc  
Zoom Inzoom in Zoom Outzoom out
 21 / 25 page
background image
A
A
A
AV
V
V
V 4
4
4
4 5
5
5
5 C
C
C
C Q
Q
Q
Q u
u
u
u a
a
a
a rrrrtttte
e
e
e rrrr--B
B
B
B rrrriiiic
c
c
c k
k
k
k S
S
S
S e
e
e
e rrrriiiie
e
e
e s
s
s
s 1
1
1
1 0
0
0
0 0
0
0
0 W
W
W
W P
P
P
P o
o
o
o w
w
w
w e
e
e
e rrrr C
C
C
C o
o
o
o n
n
n
n v
v
v
v e
e
e
e rrrrtttte
e
e
e rrrrs
s
s
s
3
3
3
3 6
6
6
6 V
V
V
V d
d
d
d c
c
c
c tttto
o
o
o 7
7
7
7 5
5
5
5 V
V
V
V d
d
d
d c
c
c
c IIIIn
n
n
n p
p
p
p u
u
u
u tttt,,,, S
S
S
S iiiin
n
n
n g
g
g
g lllle
e
e
e O
O
O
O u
u
u
u ttttp
p
p
p u
u
u
u tttt
-21-
USA
Europe
Asia
TEL:
1-760-930-4600
44-(0)1384-842-211
852-2437-9662
FAX:
1-760-930-0698
44-(0)1384-843-355
852-2402-4426
www.astec.com
Output Over-V
Output Over-Voltage Protection
oltage Protection
The over-voltage protection has a separate
feedback loop which activates when the output
voltage is between 5.7~6.8V (for 5Vout) and
2.2~2.8V (for 1.8Vout). When an over-voltage
condition occurs, an internal “ turn off “ signal
shut off the module. The module will restart
after power on again.
Parallel Power Distribution
Parallel Power Distribution
Figure 19 shows a typical parallel power distri-
bution design. Such designs, sometimes called
daisy chains, can be used for very low output
currents, but are not normally recommended.
The voltage across loads far from the source
can vary greatly depending on the IR drops
along the leads and changes in the loads clos-
er to the source. Dynamic load conditions
increase the potential problems.
Radial Power Distribution
Radial Power Distribution
Radial power distribution is the preferred
method of providing power to the load. Figure
20 shows how individual loads are connected
directly to the power source. This arrangement
requires additional power leads, but it avoids
the voltage variation problems associated with
the parallel power distribution technique.
Mixed Distribution
Mixed Distribution
In the real world a combination of parallel and
radial power distribution is often used. Dynamic
and high current loads are connected using a
radial design, while static and low current loads
can be connected in parallel. This combined
approach minimizes the drawbacks of a parallel
design when a purely radial design is not feasible
.
Redundant Operation
Redundant Operation
A common requirement in high reliability sys-
tems is to provide redundant power supplies.
The easiest way to do this is to place two con-
verters in parallel, providing fault tolerance but
not load sharing. Oring diodes should be used
to ensure that failure of one converter will not
cause failure of the other converter. Figure 22
shows such an arrangement. Upon application
of power, one of the converters will provide a
slightly higher output voltage and will support
the full load demand. The second converter will
see a zero load condition and will “idle”. If the
first converter should fail, the second converter
will support the most load. When designing
redundant converter circuits, Shottky diodes
should be used to minimize the forward voltage
drop. The voltage drop across the Shottky
diodes must also be considered when deter-
mining load voltage requirements.
Load 1
Load 2
Load 3
+Vout
-Vout
RL1
RL2
RL3
RG1
RG2
RG3
RL = Lead Resistance
RG = Ground Lead Resistance
Fig.20 Radial Power Distribution
Load 1
Load 2
Load 3
+Vout
-Vout
RL1
RL2
RL3
RG1
RG2
RG3
I1 + I2 + I3
I2 + I3
I3
RL = Lead Resistance
RG = Ground Lead Resistance
Fig.19 Parallel Power Distribution
Load 1
Load 2
Load 3
+Vout
-Vout
RL1
RL2
RL3
RG1
RG2
RG3
RL = Lead Resistance
RG = Ground Lead Resistance
Load 4
RL4
RG4
Fig.21 Mixed Power Distribution
+Vout
-Vout
+Vout
-Vout
Load
Fig.22 Redundant Operation



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25


数据表 下载

Go To PDF Page


链接网址



ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   数据表链接    |   链接交换   |   制造商名单
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com