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參數(shù)資料
| 型號(hào)： | CPD200-4530 |
| 元件分類： | DC/DC變換器 |
| 英文描述： | 200 ? 250 Watt CompactPCI?DC-DC Converters |
| 中文描述： | 200？ 250瓦的CompactPCI？的DC - DC轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 3/13頁(yè) |
| 文件大?。?/td> | 259K |
| 代理商： | CPD200-4530 |
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NOV 28, 2006 revised to JAN 29, 2007
Page 3 of 13
www.power-one.com
CPD Series Data Sheet
200 – 250 Watt CompactPCI
DC-DC Converters
Electrical Input Data
General Conditions:
T
A
= 25 °C, unless
T
C
is specified.
Table 2: Input data
Input
CPD200
CPD250
Characteristics
Conditions
min
typ
max
min
typ
max
Unit
V
i
Operating input voltage
I
o
= 0 –
I
o max
T
C min
–
T
C max
36
75
36
75
VDC
V
i nom
Nominal input voltage
48
48
V
i abs
Input voltage limits
without damage
80
80
I
i
Typical input current
V
i nom
,
I
o nom
5.1
6.3
A
I
i max
Max. input current
V
i min
,
I
o nom
7.0
7.6
8.7
9.5
I
inr p
Peak inrush current
V
i max
,
I
o nom
12
12
P
i0
No-load input power
V
i min
–
V
i max
I
o
= 0
30
30
W
P
i inh
C
i
f
switch
Input power, when disabled
V
i min
–
V
i max
Input Capacitance
Switching frequency
3.2
3.2
1360
135
1360
135
μF
kHz
Input Fuse
A fuse mounted inside the converter protects the module
against further damage in the case of a failure. The fuse
cannot be made externally accessible. Reverse polarity at
the input will cause the fuse to blow but no other damage.
Note:
Fuse is not customer-accessible.
Table 3: Fuse specification
Model
Fuse type
Fuse rating
CDP200/250
slow blow
T 250 V, 12.5 A
Inrush Current Limitation
The CPD Series incorporates an active inrush current
limiter in the input circuitry, which reduces the peak inrush
current value by a factor of 10
–
15 to protect connectors
and switching devices from damage.
high current synchronous rectifiers supply the 5 V and 3.3 V
outputs with up to 40 A. The secondary controlled +12 V
post regulator is supplied by an additional winding of the
3.3 V main transformer, and the linear regulator for the
–
12
V output is supplied by the output choke of the +12 V
output. After rectification, the output filter reduces ripple
and noise to a minimum without compromising the dynamic
response.
All outputs are protected from the bus by decoupling FETs
or diodes. A current monitor calculates the output power. As
soon as the output power exceeds the maximum threshold
level, the converter starts to reduce the output power by
decreasing the output voltages.
In contrast to the outputs 5 V, 3.3 V and +12 V with
active current sharing, the
–
12 V output has a droop
characteristic for passive current sharing. Each converter
has a switching frequency of around 135 kHz.
Power-One's Efficient Dual Geometric Edge (EDGE
TM
)
Technology facilitates high current density, increases
reliability by reducing component stresses, and
decreases the amount of heat dissipated. The backbone
of this patented technology is an interleaved, multi-
channel forward converter utilising transitional resonant
switching techniques and proprietary leading and trailing-
edge pulse width modulation. It has a proven track record
in high-availability power solutions.
Note:
The inrush current limitation is achieved using an
electronic circuitry. For effective limitation the converter
should not be switched on and off more frequently than
every 8 seconds.
Input Transient Protection
A metal oxide VDR (Voltage Dependent Resistor)
together with the input fuse and suppressor diode form
an effective protection against high input voltage
transients, which typically occur in most installations.
The CPD Series input range and input filters have been
designed and tested to meet the requirements of
EN 61000-4-5, criterion B.
Reverse Polarity
The converters are not protected against reverse polarity
at the input to avoid unwanted power loss. In case of
reversed input voltage, the suppressor diode conducts
blowing the fuse, but preventing further damage.
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