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参数资料
| 型号： | AK2320-7PT |
| 厂商： | POWER-ONE INC |
| 元件分类： | 电源模块 |
| 英文描述： | 2-OUTPUT 150 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | HEAT SINK, METAL, CASE K02, MODULE |
| 文件页数： | 18/31页 |
| 文件大小： | 1251K |
| 代理商： | AK2320-7PT |
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Rugged Environment
DC-DC Converters >100 Watt
K Series
Edition 4/4.99
25/31
MELCHER
The Power Partners.
RV: Current limiting resistance = RS + RI = 15
[A]
Ui/RV
<30
t [ms]
CapacitorCi
fully charged
Normal operation
(current limiting
circuit is fully
conducting)
0
Ii = Pi/Ui
11039
Fig. 26
Inrush current with option E
Table 16: Inrush current characteristics with option E
Characteristics
CK
DK
EK
Unit
Ui nom, Io nom
Input voltage
60
110
220
V
Iinr p
Peak inrush
6.8
7.4
14.6
A
current
tinr
Inrush current
18
14
16
ms
duration
Ui max, Io nom
Input voltage
140
220
380
V
Iinr p
Peak inrush
9.3
14.5
25.3
A
current
tinr
Inrush current
20
14
12
ms
duration
Precaution: Subsequent switch-on cycles at start-up
are limited to max. 10 cycles during the first 20 seconds
(cold unit) and at continuing on/off (
TC =95°C) max. 1
cycle every 8 sec.
Input
Filter
Control
Converter
FET
Ci
RI
RS
10017
Fig. 25
Option E block diagram
P Potentiometer
The potentiometer provides an output voltage adjustment
range of +10/–60% of
Uo nom and is accessible through a
hole in the front cover. This feature enables compensation
of voltage drops across the connector and wiring. Option P
is not recommended if units are connected in parallel.
Option P excludes the R-function. With double output units
both outputs are affected by the potentiometer setting (dou-
bling the voltage setting if the outputs are in series).
If the output voltages are increased above
Uo nom via R-in-
put control, option P setting, remote sensing or option T, the
output current(s) should be reduced accordingly so that
Po nom is not exceeded.
Description of Options
Table 15: Survey of options
Option
Function of Option
Characteristics
-9
Extended operational ambient temperature range
TA = –40°C...71°C
E
Electronic inrush current limitation circuitry
Active inrush current limitation for CK, DK, EK
P 1
Potentiometer for fine adjustment of output voltage
Adjustment range +10/–60% of
Uo nom excludes R input
D 2
Input and/or output undervoltage monitoring circuitry
Safe data signal output (Versions D0...DD)
V 2 3
Input (and output) undervoltage monitoring circuitry
ACFAIL signal according to VME specs (Versions V0, V2, V3)
T
Current sharing
Interconnect T-pins if paralleling outputs (5 units max.)
B1/B2
Cooling plate
Replaces standard heat sink, allowing direct chassis-mounting
1 Function R excludes option P and vice versa.
2 Option D excludes Option V and vice versa .
3 Only available if main output voltage U o1 = 5.1.
-9 Extended Temperature Range
Option -9 extends the operational ambient temperature
range from –25...71
°C (standard) to –40...71°C. The power
supplies provide full nominal output power with convection
cooling. Option -9 excludes inrush current limitation by
NTC.
E Inrush Current Limitation
CK/DK/EK types may be supplemented by an electronic
circuit (option E, replacing the standard built-in NTC) to
achieve an enhanced inrush current limiting function (not
available with AK/BK/FK types).
If fitted with option E (inrush current limitation) together with
option D6, input voltage monitoring, the CK units meet the
CEPT/ETSI standards for 48 V DC supply voltages accord-
ing to prETS 300132-2, version 4.2, date 9312. Option D6,
externally adjustable via potentiometer, is necessary to dis-
able the converter at input voltages below actual service
voltage ranges, avoiding an excessive input current
when the input voltage is raised slowly according to
prETS 300132-2. Option D6 threshold level should be ad-
justed to 36.0...40.5 V for 48 V nominal supply systems or
44.0...50.0 V for 60 V nominal supply systems (refer also to
description of option D). The D output should be connected
to the inhibit input. Please contact Melcher if applications
do not permit potentiometer setting.
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