CSR2012-6I [BEL]
DC-DC Regulated Power Supply Module, 1 Output, 20W;
| 型号： | CSR2012-6I |
| 厂家： | 
BEL FUSE INC. |
| 描述： | DC-DC Regulated Power Supply Module, 1 Output, 20W |
| 文件： | 总11页 (文件大小：394K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Industrial Environment
DC-DC Converters <40 Watt
SR Series
20 Watt DC-DC Converters
SR Series
Single output of 5, 12, 15 or 24 V DC
Input voltage up to 180 V DC
• Full input to output isolation 2.5 kV
rms
• Wide input voltage range
• High efficiency up to 81%
• Efficient input filter
• Very good dynamic characteristics
• Parallel and series compatible
• Continuous no-load and short circuit proof
32
1.3"
88
3.5"
151
5.9"
Safety according to IEC/EN 60950
LGA
Summary
The DC-DC converters of the SR series are power supply
modules for electronic systems. Their major advantages in-
clude a high efficiency that remains virtually constant over
the entire input voltage range, high reliability, low ripple and
excellent dynamic response. The converters are designed
for chassis mounting.
Type Survey and Key Data
Table 1: Type survey
Output voltage
Input voltage range and efficiency 2
Options
Uo nom
[V DC]
Io nom
[A]
Ui min...Ui max
hmin htyp
Ui min...Ui max
hmin htyp
Ui min...Ui max
76...180 V DC
hmin htyp
19...45 V DC 1
[%] [%]
38...90 V DC 1
[%] [%]
[%] [%]
74 77
75 78
76 79
77 81
5
4
BSR 2005-7
BSR 2012-7
BSR 2015-7
BSR 2024-7
70 73
74 77
74 78
75 79
CSR 2005-7
CSR 2012-7
CSR 2015-7
CSR 2024-7
74 77
75 78
76 79
77 81
DSR 2005-7
DSR 2012-7
DSR 2015-7
DSR 2024-7
-6, R 1, i, P
12
1.67
1.34
0.84
15
24
1 With option R, shifted input voltage range, for BSR: 16...38 V DC, for CSR: 32...76 V DC. Not available for DSR.
2 Efficiency at Ui nom and Io nom
.
Table of Contents
Page
Page
Summary.......................................................................... 1
Type Survey and Key Data .............................................. 1
Type Key and Product Marking ........................................ 2
Functional Description...................................................... 3
Electrical Input Data ......................................................... 4
Electrical Output Data ...................................................... 5
Immunity to Environmental Conditions............................. 6
Mechanical Data .............................................................. 7
Safety and Installation Instructions .................................. 8
Description of Options.................................................... 10
Edition 4/6.99
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MELCHER
The Power Partners.
SR Series
DC-DC Converters <40 Watt
Industrial Environment
Type Key and Product Marking
Type Key
B SR 20 05 -7 R i P
Input voltage range Ui
19...45 V DC ...............................................B
38...90 V DC .............................................. C
76...180 V DC .............................................. D
Series ............................................................................ SR
Nominal output power in watt ......................................... 20
Nominal output voltage in volt
5 V ........................................................... 05
12 V ........................................................... 12
15 V ........................................................... 15
24 V ........................................................... 24
Ambient temperature range TA = –25...71°C:
Plastic semi-conductors.............................. -7
Hermetic semi-conductors (option)............. -6
Options:
Shifted input voltage range ......................... R
Inhibit input ................................................... i
Potentiometer ..............................................P
Example: BSR 2005-7RiP = 20 Watt DC-DC converter with a 5 V output, ambient temperature range of –25...71°C,
shifted input range of Ui = 16...38 V DC, inhibit, and potentiometer.
Produkt Marking
Basic type designation, applicable safety approval and recognition marks, CE mark, warnings and Melcher company logo.
Specific type designation, input voltage range, nominal output voltage and current, pin allocation, identification of LED and
potentiometer.
Label with batch No., serial No. and data code comprising production site, modification status of the main PCB and date of
production.
Edition 4/6.99
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The Power Partners.
Industrial Environment
DC-DC Converters <40 Watt
SR Series
Functional Description
No output voltage overshoot will occur when plugging in or
disconnecting the module, switching the input voltage on/
off, inhibiting the unit or after reset.
After passing through a line interference filter, the DC volt-
age is chopped at a constant frequency of about 30 kHz.
After transformer isolation and rectification, an output filter
reduces ripple to a minimum without compromising the dy-
namic behaviour. The output voltage is routed to a control
circuit with internal sense lines, where the output voltage is
compared with a reference voltage. The voltage is regulated
via a control transformer by varying the duty ratio of the for-
ward converter.
In the event of a main control circuit failure, the maximum
output voltage Uo is restricted to approx. 1.2 Uo nom by
means of an independent second control circuit.
When the converters are located in free, stationary air at
a temperature TA max = 71°C and are operated at nominal
power, the case temperature TC max will reach approx. 85°C
after a certain warm-up time (Case temperature TC at the
measuring point, see: Mechanical Data).
The converters have input transient protection by means of
a zinc oxide VDR and input reverse polarity protection by
means of a protective diode and a fuse.
Under certain operating conditions the ambient tempera-
ture TA max may be allowed to exceed 71°C provided that
additional measures are taken to ensure the case tempera-
ture TC max remains below 85°C.
An internal inhibit signal keeps the output voltage switched
off below approx. 0.7...0.9 Ui min
.
The outputs are protected against continuous open circuit
by means of an internal, electronically switched pre-load
and against continuous short circuit by the current limiting
circuit.
P (option)
03051
i (option)
Control circuit
+
+
Forward
converter
30 kHz
Input
Filter
–
–
2.2 nF
2.2 nF
( )
4.7 nF
Fig. 1
Block diagram
Edition 4/6.99
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SR Series
DC-DC Converters <40 Watt
Industrial Environment
Electrical Input Data
General Conditions
– TA = 25°C, unless TC is specified
– With option i, pin i is connected with –Uo
– With option P, Uo = Uo nom at Io nom
Table 2: Input data
Input
BSR
typ
(30)
(24)
28
CSR
DSR
Characteristics
Conditions
min
19
max
45
min
38
typ
(60)
(48)
22
max
90
min
typ
max
Unit
Ui
(Ui nom
Input
voltage
Standard
Option R
Io = 0...Io nom
TC min...TC max
76 (120) 180
V DC
)
16
38
32
76
n.a.
10
0.4
1
Iinr p
tinr r
tinr h
ui RFI
Peak inrush current
Rise time
Ui nom
A
0.2
1
0.3
0.7
ms
Time to half-value
RFI level at input
0.01...30 MHz
EN 55022
50 Ω/50 µH
Ui = Ui nom
B
B
B
Si
Primary fuse rating
slow blow
3.15
2
1.6
2.5
A
ui tr
Input transient
suppression
1.2/5 µs
VDE 0433
0.8
1.5
kV
Ii inh
Ii uv
Residual input current 5 min. after
with converter inhibited start
1...6
1
1...4
1
1...4
1
mA
Input current
after 5 min.
undervoltage lock-out Ui < 0.7 Ui min
Ii [mA]
1000
Ii [A]
1.75
Ui min = 38 V DC
03053
Ui min = 19 V DC
03052
CSR 20
BSR 20
1.50
1.25
1.00
0.75
0.50
0.25
0
800
600
400
200
0
Io = Io nom
Io = Io nom
Io = 1/
2
o nom
Io = 1/
2
Io nom
Io = 0
Io = 0
Ui [V]
Ui [V]
15
20
25
30
35
40
45
30
40
50
60
70
80
90
Fig. 2
Fig. 3
Input current Ii versus input voltage Ui
Input current Ii versus input voltage Ui
Ii [A]
Ii [mA]
Ui min = 76 V DC
03055
03054
1.0
500
DSR 20
Ui = 30 V DC (BSR)
0.8
0.6
0.4
0.2
0
Ui = 60 V DC (CSR)
Ui = 120 V DC (DSR)
400
300
Io = Io nom
200
1
Io = 1/
Io = 0
120
2
Io nom
1
1
100
0
Io/Io nom
Ui [V]
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
60
80
100
140
160
180
1 Switch-off point of internal pre-load
Fig. 4
Fig. 5
Input current Ii versus input voltage Ui
Input current Ii versus input voltage Ui
Edition 4/6.99
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The Power Partners.
Industrial Environment
DC-DC Converters <40 Watt
SR Series
Electrical Output Data
General Conditions
– TA = 25°C, unless TC is specified
– With option i, pin i is connected with –Uo
– With option P, Uo = Uo nom at Io nom
Table 3: Output data
Output
..SR 2005..
SR 2012 ..
SR 2015 ..
SR 2024
min typ max
24.14 V DC
0.84
Characteristics
Conditions
Ui nom, Io nom
Ui min...Ui max
min typ max
min typ max
min typ max
Unit
Uo
Io
Output voltage
4.97
0
5.03 11.92
12.07 14.91
1.67
15.09 23.85
Output current
4
0
0
1.34
0
A
Io L
Output current limitation
Ui min...Ui max
TC min...TC max
4.8
1.84
1.47
0.92
Uo L Overvoltage limit with
second control loop
Failure of main 5.3
control circuit
6.8
13.5
16.0
16.5
19.0
27.0
31.0 V DC
uo
Total output voltage
Ui min...Ui max
Io nom
30 40
10 20
10 20
10 20
mVpp
mV
noise (BW = 20 MHz) 1
DUo U Static line regulation
DUo I Static load regulation
±12 ±24
±10 ±20
±10 ±20
±12 ±25
Ui nom
Io = 0...Io nom
12 25
20 40
25 50
30 60
uo d
td
Dynamic Voltage deviat. Ui nom
±70
±25
±25
±25
load re-
gulation
1 ↔ 1/
Io nom
5
Recovery time
70
150
200
300
µs
IEC/EN 61204
aUo
Temperature coefficient
DUo/DTC
Ui min...Ui max
Io = 0...Io nom
±1
±2
±3
±5
mV/K
±0.02
±0.02
±0.02
±0.02 %/K
1 According to IEC/EN 61204. See: Technical Information: Measuring and Testing.
2 See: Dynamic Characteristics.
∆Uo I [mV]
05010
Uo
05066
40
30
20
10
0
uod
DUo I
DUo I
1
2024
uod
1
2015
td
td
1
t
2012
2005
1
I /I
o
o nom
1
t
0
≥10 s
≥10 s
–10
Io/Io nom
0.5
0.75
1.0
0
0.25
Fig. 6
1 Switch-off point of internal pre-load
Dynamic load regulation.
Fig. 7
Static load regulation.
Output voltage Uo versus output current Io.
Uo/Uo nom
1.2
05067
1.0
0.8
0.6
0.4
0.2
0
Io/Io nom
0.4
0.6
0.8
1.0
1.2
1.4
0
0.2
Fig. 8
Short-circuit behaviour.
Output voltage Uo versus output current Io.
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SR Series
DC-DC Converters <40 Watt
Industrial Environment
Thermal Considerations
If a converter is located in free, quasi-stationary air (con-
vection cooling) at the indicated maximum ambient tem-
perature TA max (see table: Temperature specifications) and
is operated at its nominal input voltage and output current,
the temperature measured at the Measuring point of case
temperature TC (see: Mechanical Data) will approach the
indicated value TC max after the warm-up phase. However,
the relationship between TA and TC depends heavily on the
conditions of operation and integration into a system. The
thermal conditions are influenced by input voltage, output
current, airflow and temperature of surrounding compo-
nents and surfaces. TA max is therefore, contrary to TC max
,
an indicative value only.
Caution: The installer must ensure that under all operat-
ing conditions TC remains within the limits stated in the
table: Temperature specifications.
Note: Sufficient forced cooling or an additional heat sink al-
lows TA to be higher than 71°C (e.g. 85°C) as long as
TC max is not exceeded.
Immunity to Environmental Conditions
Table 4: Mechanical stress
Test Method
Standard
Test Conditions
Temperature:
Status
Ca
Ea
Eb
Fc
Damp heat
steady state
IEC/DIN IEC 60068-2-3
MIL-STD-810D section 507.2 Relative humidity:
Duration:
40 ±2 °C
%
56 days
Unit not
operating
93 +2/-3
Shock
(half-sinusoidal)
IEC/EN/DIN EN 60068-2-27
MIL-STD-810D section 516.3 Bump duration:
Number of bumps:
Acceleration amplitude:
100 gn = 981 m/s2
6 ms
18 (3 each direction)
Unit
operating
Bump
(half-sinusoidal)
IEC/EN/DIN EN 60068-2-29
MIL-STD-810D section 516.3 Bump duration:
Number of bumps:
Acceleration amplitude:
40 gn = 392 m/s2
6 ms
6000 (1000 each direction)
Unit
operating
Vibration
IEC/EN/DIN EN 60068-2-6
MIL-STD-810D section 514.3
Acceleration amplitude:
0.35 mm (10...60 Hz)
Unit
(sinusoidal)
5 gn = 49 m/s2 (60...2000 Hz) operating
10...2000 Hz
Frequency (1 Oct/min):
Test duration:
7.5 h (2.5 h each axis)
Table 5: Temperature specifications, valid for air pressure of 800...1200 hPa (800...1200 mbar)
Temperature
Standard -7 3
min max
Option -6 4
CharacteristicsConditions
min
max
71
Unit
TA
TC
TS
Ambient temperature 1
Operational 2
–25
–25
–40
71
85
85
–25
–25
–40
°C
Case temperature
Storage temperature 1
85
Non operational
85
1 MIL-STD-810D section 501.2 and 502.2
2 See: Thermal Considerations
3 Plastic semiconductor devices
4 Hermetic semiconductor devices
Table 6: MTBF and device hours
MTBF
Ground Fixed
Ground Mobile
MTBF acc. to MIL-HDBK-217D
Standard -7
TC = 40°C
TC = 70°C
TC = 40°C
TC = 70°C
155'000 h
100'000 h
69'000 h
31'500 h
13'000 h
18'000 h
Option -6
46'000 h
28'000 h
1Statistical values, based on an average of 4300 working hours per year and in general field use
Edition 4/6.99
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Industrial Environment
DC-DC Converters <40 Watt
SR Series
Mechanical Data
Dimensions in mm. Tolerances ±0.3 mm unless otherwise indicated.
European
Projection
green LED output
voltage indicator
60
46.5
Potentiometer
(Option P)
Fuse
26.5
09045
Uo adj
+
Uo
-
+
-
-
Input
Output
151 ±1
Distance between M4 fixing screws
144
5 ±0.5
Measuring point of
case temperature TC
Input
Output
10.7 ±1
10 10
10 10
77.5
Fig. 9
Case: C01 (weight: BSR 550 g, CSR and DSR 555 g).
Aluminium, black finish, fully enclosed, self cooling.
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SR Series
DC-DC Converters <40 Watt
Industrial Environment
Safety and Installation Instructions
Installation Instructions
Standards and Approvals
Our DC-DC converters are components, intended exclu-
sively for inclusion within other equipment by an industrial
assembly operation or by professional installers. Installation
must strictly follow the national safety regulations in compli-
ance with the enclosure, mounting, creepage, clearance,
casualty, markings and segregation requirements of the
end-use application. See also: Technical Information: In-
stallation and Application.
The DC-DC converters correspond to class I equipment. All
types are LGA approved to IEC/EN 60950 standards.
The units have been evaluated for:
• Building in,
• Basic insulation between input and case/output, based
on 250 V AC and 400 V DC,
• Basic insulation between output and case, based on
250 V AC and 400 V DC,
• The use in a pollution degree 2 environment,
• Connecting the input to a circuit which is subject to a
maximum transient rating of 2500 V.
Connection to the system shall be made via the
6.3 × 0.8 mm faston contacts at the cover side of the unit
according to Mechanical Data.
The DC-DC converters are provided with an earth pin ( ),
which is reliably connected with their case. For safety rea-
sons it is essential to connect this pin with the protective
earth of the supply system if required in: Safety of operator
accessible output circuit.
The DC-DC converters are subject to manufacturing sur-
veillance in accordance with EN 60950 and ISO 9001
standards.
Protection Degree
An input fuse is built-in in the connection from the Vi+ termi-
nal of the unit. Since this fuse is designed to protect the unit
in case of an overcurrent and does not necessarily cover all
customer needs, an external fuse suitable for the applica-
tion and in compliance with the local requirements should
be installed in the wiring to one or both input pins (Vi+ and/
or Vi–).
The protection degree of the DC-DC converters is IP 40,
exept in the vicinity of the terminals, where it depends on
the installation.
Isolation
The electric strength test is performed as factory test in ac-
cordance with IEC/EN 60950 and UL 1950 and should not
be repeated in the field. Melcher will not honour any guar-
antee claims resulting from electric strength field tests.
Important: Whenever the inhibit function is not in use,
pin i should be connected to pin Vo1– to enable the out-
put. Do not open the modules, or guarantee will be invali-
dated.
Table 7: Isolation
Make sure that there is sufficient air flow available for con-
vection cooling. This should be verified by measuring the
case temperature when the unit is installed and operated in
the end-use application. The maximum specified case tem-
perature TC max shall not not be exceeded. See also: Ther-
mal Considerations.
Characteristic
Input Input Output Unit
to to to
case output case
Electric Required according
strength to IEC/EN 60950
2.0
2.5 1
1.0
1.4 kV DC
MΩ
kVrms
test
voltage
Actual factory test
1 s
2.8
3.5 1
Cleaning Agents
Insulation resistance
at 500 V DC
>100 >100 >100
In order to avoid possible damage, any penetration of
cleaning fluids is to be prevented, since the power supplies
are not hermetically sealed.
1 In accordance with IEC/EN 60950 only subassemblies are
tested in factory with this voltage.
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DC-DC Converters <40 Watt
SR Series
Safety of operator accessible output circuit
IEC/EN 60950 up to a configured output voltage (sum of
nominal voltages if in series or +/– configuration) of 44 V.
If the output circuit of a DC-DC converter is operator acces-
sible, it shall be an SELV circuit according to the IEC/EN
60950 related safety standards
However, it is the sole responsibility of the installer to as-
sure the compliance with the relevant and applicable safety
regulations. More information is given in: Technical Infor-
mation: Safety.
The following table shows some possible installation con-
figurations, compliance with which causes the output circuit
of the DC-DC converter to be an SELV circuit according to
Table 8: Insulation concept leading to an SELV output circuit
Conditions Front end
DC-DC converter
Result
Supply
voltage
Minimum required grade
of isolation, to be provided DC output status of the front end
by the AC-DC front end,
including mains supplied
battery charger
Maximum Minimum required safety
Measures to achieve the
specified safety status of the
output circuit
Safety status of
the DC-DC
converter output
circuit
voltage
output circuit
from the
front end 1
Mains
Operational (i.e. there is
≤180 V 1
Primary circuit
Basic insulation, based on
250 V AC (provided by the
DC-DC converter), input
fuses 2, output suppressor
diode 3, earthed output circuit
and earthed 4 or non user
accessible case 5
Earthed SELV
circuit
≤250 V AC no need for electrical
isolation between the main
supply voltage and the
DC-DC converter input
voltage)
Basic
≤60 V 6
Earthed SELV circuit 4
ELV circuit
Operational insulation (pro-
vided by the DC-DC converter)
SELV circuit
Supplementary
Basic insulation, based on
250 V AC (provided by the
DC-DC converter)
>60 V 1
Unearthed hazardous
voltage secondary circuit 5
Double or reinforced
≤60 V 1
SELV circuit
Operational insulation (pro-
vided by the DC-DC converter)
≤120 V 6
TNV-3 circuit
Basic insulation, based on the
maximum output voltage from
the front end (provided by the
DC-DC converter)
>60 V 1
Double or reinforced insu-
lated unearthed hazardous
voltage secondary circuit 6
1 The front end output voltage should match the specified input voltage range of the DC-DC converter. The nominal voltage between
any input pin and earth can be up to 250 V AC or 400 V DC.
2 The installer shall provide an approved fuse (type with the lowest rating suitable for the application) in both input lines directly at the
input of the DC-DC converter (see fig.: Schematic safety concept). For UL’s purpose, the fuse needs to be UL-listed.
3 The suppressor diode should be dimensioned in such a way, that in the case of an insulation fault the diode is able to limit the output
voltage to SELV (<60 V) until the input fuse blows (see fig.: Schematic safety concept).
4 The earth connection has to be provided by the installer according to the relevant safety standard, e.g. IEC/EN 60950 (see also fig.:
Schematic safety concept).
5 Has to be insulated from earth by at least supplementary insulation according to the relevant safety standard, based on the maximum
output voltage from the front end.
6 The front end output voltage should match the specified input voltage range of the DC-DC converter.
7 Has to be insulated from earth by at least supplementary insulation according to the relevant safety standard, based on the maximum
mains supply voltage.
Max. 250 V AC
or 400 V DC
10023
+
~
Mains
Suppressor
diode
AC-DC
front
end
DC-DC
con-
verter
Fuse
Fuse
Battery
SELV
–
~
Earth
connection
Max. 250 V AC
or 400 V DC
Fig. 10
Schematic safety concept. Use fuse, suppressor diode
and earth connection as per table Safety concept leading
to an SELV output circuit.
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SR Series
DC-DC Converters <40 Watt
Industrial Environment
Description of Options
-6 Hermetic semiconductor
i Inhibit
The converters are equipped with hermetic semiconduc-
tors instead of the standard plastic ones as far as such
components are electrically and mechanically compatible.
The DC-DC converter can be switched on or off with a con-
trol signal via the inhibit input i. In systems with several
units, this feature can be used, for example, to control the
activation sequence of the units with a logic signal (TTL, C-
MOS, etc.).
P Potentiometer
The potentiometer provides an output voltage adjustment
range of ±5% from the nominal output voltage Uo nom and is
accessible from the connector side. This option can be
used, for example, to compensate for voltage drops in the
supply lines.
Note: A non-used inhibit input should be connected to the
negative output to enable the unit.
06001
Uo/Uo nom
1
R Shifted input voltage range
0.1
t
0
Option R allows the operation of BSR and CSR converter
series from either 24 or 48 V input voltages. The input volt-
age tolerance is –30...25% as required by IEC 571: Rules
for Electronic Equipment used on Rail Vehicles.
tf
tr
Inhibit
1
t
0
Ii [A]
Fig. 13
Output response as a function of inhibit signal
U
i max = 38 V DC
BSR with option R
Ui min = 16 V DC
2.5
2.0
06031
Vo+
i
Vi+
Iinh
1.5
1.0
0.5
0
Io/Io nom
Uinh
Io = 1/
2
Io nom
Vo–
Vi–
Io = 0
Fig. 14
Ui [V]
10
15
20
25
30
35
40
Definitions of Iinh and Uinh
Fig. 11
Iinh [A]
Input current Ii versus input voltage Ui
U
inh = 2.4 V
Uinh = 0.8 V
11035
6
4
2
Ii [mA]
Ui max = 72 V
Ui min = 38 V
1000
800
600
400
200
0
CSR with option R
Uo
Uo
off
on
Io/Io nom
0
Io = 1/
2
Io nom
–2
–50
Uinh [V]
Io = 0
–20
–10 0
–30
–40
10 20 30 40 50
60
Ui [V]
20
30
40
50
60
70
80
Fig. 15
Inhibit current Iinh versus inhibit voltage Uinh
Fig. 12
Input current Ii versus input voltage Ui
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DC-DC Converters <40 Watt
SR Series
Table 9: Inhibit characteristics
Characteristics
Conditions
.. SR 2005
.. SR 2012
.. SR 2015
.. SR 2024
min typ max
Unit
min typ max
min typ max
min typ max
Uinh Inhibit input Uo = on Ui min...Ui max
–50
+0.8
–50
+0.8
–50
+0.8
–50
+0.8 V DC
voltage to
TC min...TC max
keep output Uo = off RL = Uo nom/Io nom
+2.4
+50
+2.4
+50
+2.4
+50
+2.4
+50
voltage...
...∞
Iinh
tr
Inhibit input current
at Uinh = 0
–400
–400
–400
–400
µA
Switch-on time after
inhibit command
RL = Uo nom/Io nom
Ui nom
40
2
80
75
80
75
110
80
ms
tf
Switch-off time after
inhibit command
Edition 4/6.99
11/11
MELCHER
The Power Partners.
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