24CPS3-12-T [BEL]
DC-DC Regulated Power Supply Module, 1 Output, 3W, Hybrid, 10.50 MM HEIGHT, PLASTIC, DIP-24/12;
| 型号： | 24CPS3-12-T |
| 厂家： | 
BEL FUSE INC. |
| 描述： | DC-DC Regulated Power Supply Module, 1 Output, 3W, Hybrid, 10.50 MM HEIGHT, PLASTIC, DIP-24/12 光电二极管 |
| 文件： | 总7页 (文件大小：162K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
3 Watt-Family
DC-DC Converters <40 W
Rugged Environment
IBEK DC-DC Converters
3 Watt-Family
Input to output and output to output isolation
Test voltage 500 Vrms or 1 kVrms
Single, double and dual outputs
Input voltage ranges: 10...33 V DC and 18...72 V DC
• Wide input voltage ranges of up to 1:4
• Efficient current compensated input filter
• SD-shutdown input
• High efficiency (typ. 80%)
• High reliability
• No-load and short-circuit proof
• Operating ambient temperature range up to
–40...85°C (optional)
• No derating
• DIL 24 package size, height only 10.5 mm
Table of Contents
Page
Description ................................................................ 6 - 10
Type Survey .............................................................. 6 - 11
Safety Instructions..................................................... 6 - 12
Immunity to Environmental Conditions...................... 6 - 12
Electrical Input and Output Data ............................... 6 - 13
Installation Instructions.............................................. 6 - 14
Functional Description and Block Diagrams ............. 6 - 15
Mechanical Data ....................................................... 6 - 16
Type Key and Product Marking ................................. 6 - 16
Description
constant over the entire input voltage range. Two input to
output isolation test voltage categories and two tempera-
ture ranges are available.
This series of DC-DC converters has been developed for
powering electronic circuits, e.g. telephone system compo-
nents, control modules and small appliances.They are also
suitable for applications with variable input voltages or with
input transients. The converters feature high efficiency,
high reliability, and good dynamic response to load
changes and at start-up. Efficiency is high and practically
All modules are manufactured according to ISO 9001.
Case: DIL 24 package, grey coloured plastics, self cooling
(free air convection).
6 - 10
Edition 2/96 - © Melcher AG
MELCHER
The Power Partners.
Rugged Environment
DC-DC Converters <40 W
3 Watt-Family
Type Survey
General Condition: TA = 25°C
Table 1a: Type survey IPS 3
Output 1
Uo nom
[V DC]
Output 2
Uo nom
[V DC]
Input Voltage
Group 1 700 V DC/500 Vrms
Option
Io nom
[mA]
Io nom
[mA]
Ui
[V DC]
Isolation test voltage
Type 2
5
12
15
500
250
200
-
-
-
-
-
-
01
02
.. IPS 3-05-T
.. IPS 3-12-T
.. IPS 3-15-T
S
24 IPS ..
10...33
(nominal 24)
+5
+12
+15
250
125
100
–5
–12
–15
250
125
100
.. IPS 3-0505-T
.. IPS 3-1212-T
.. IPS 3-1515-T
5
5
5
12
15
250
250
250
125
100
5
250
125
100
125
100
48 IPS ..
18...72
(nominal 48)
033
.. IPS 3-05-05-T
.. IPS 3-05-12-T
.. IPS 3-05-15-T
.. IPS 3-12-12-T
.. IPS 3-15-15-T
12
15
12
15
Table 1b: Type survey CPS 3
Output 1
Uo nom
[V DC]
Output 2
Uo nom
[V DC]
Input Voltage
Group 1 700 V DC/500 Vrms
Isolation test voltage
Type 2
Option
Io nom
[mA]
Io nom
[mA]
Ui
[V DC]
5
12
15
500
250
200
-
-
-
-
-
-
24 CPS ..
10...33
(nominal 24)
044
.. CPS 3-05-T
.. CPS 3-12-T
.. CPS 3-15-T
S
+5
+12
+15
250
125
100
–5
–12
–15
250
125
100
48 CPS ..
18...72
(nominal 48)
054
.. CPS 3-0505-T
.. CPS 3-1212-T
.. CPS 3-1515-T
Table 1c: Type survey IPW 3
Output 1
Uo nom
[V DC]
Output 2
Uo nom
[V DC]
Input Voltage
Group 1 1500 V DC/1060 Vrms
Isolation test voltage
Type 2
Option
Io nom
[mA]
Io nom
[mA]
Ui
[V DC]
5
12
15
500
250
200
-
-
-
-
-
-
01
.. IPW 3-05-T
.. IPW 3-12-T
.. IPW 3-15-T
S
24 IPW ..
10...33
(nominal 24)
+5
+12
+15
250
125
100
–5
–12
–15
250
125
100
02
.. IPW 3-0505-T
.. IPW 3-1212-T
.. IPW 3-1515-T
5
5
5
12
15
250
250
250
125
100
5
250
125
100
125
100
48 IPW ..
18...72
(nominal 48)
033
.. IPW 3-05-05-T
.. IPW 3-05-12-T
.. IPW 3-05-15-T
.. IPW 3-12-12-T
.. IPW 3-15-15-T
12
15
12
15
1 See "Block Diagrams"
2 Nominal input voltage should be added to the type designation (e.g. 24 IPS 3-05-T)
3 Group 03 features two independent galvanically isolated outputs. For each unit, the output to output isolation test voltage is identical
to that for input to output isolation.
4 See Mechanical Data: "Alternative Pin Configuration"
Other types with different input and output specifications available upon request.
Edition 2/96 - © Melcher AG
6 - 11
MELCHER
The Power Partners.
3 Watt-Family
DC-DC Converters <40 W
Rugged Environment
Safety Instructions
If the output circuit of a DC-DC converter is operator-acces-
sible according to the IEC 950 related safety standards, it
shall be an SELV circuit (Safety Extra Low Voltage circuit,
i.e. a circuit, separated from mains by at least basic insula-
tion, that is so designed and protected that under normal
and single fault conditions, the voltage between any two
conductors and between any conductor and earth does not
exceed DC 60 V).
In the following section an interpretation is provided of the
IEC 950 safety standard with respect to the safety status of
the output circuit. However, it is the sole responsibility of the
installer or user to assure the compliance with the relevant
and applicable safety standards.
If the following table is observed, the output of any DC-DC
converter is considered to be an SELV.
Table 2: Insulation concept for SELV circuits
Nominal Minimum required grade Maximum Minimum required
Minimum required grade of
isolation between the input
Resulting safety
status of the
mains
of isolation, to be
output
safety status of the
supply
provided by the AC-DC
voltage
front end output circuit
and the output of the DC-DC DC-DC converter
voltage front end, including mains from the
converter, provided by
the converter
output circuit
(AC)
supplied battery charger front end
≤250 V
Basic
≤60 V
≤72 V
Earthed SELV circuit 1
Operational
Operational
SELV circuit 2
Unearthed hazardous
voltage secondary circuit 3
Earthed SELV
circuit 1 2
Double or reinforced
≤60 V
≤72 V
SELV circuit
Operational
SELV circuit 2
Double or reinforced insu- Operational
lated unearthed hazardous
voltage secondary circuit,
supplying an SELV circuit 4
1
2
3
The earth connection has to be provided by the installer according to the relevant safety standard, e.g. IEC 950.
The output has to be protected against overvoltages higher than 60 V by external means, e.g. an overvoltage suppressor diode.
Has to be insulated from earth by at least basic insulation according to the relevant safety standard, based on the maximum input
voltage of the DC-DC converter.
Has to be insulated from earth by double or reinforced insulation according to the relevant safety standard, based on the maximum in-
put voltage of the DC-DC converter.
4
Immunity to Environmental Conditions
Thermal Considerations
Table 3: Temp. specification values given are valid for air pressures in the range 800...1200 hPa (800...1200 mbar)
Characteristics
Conditions
Standard -T
Option -S
Unit
min
max
71
min
max
85
TA
TC
TS
Ambient temperature
Ui min...Ui max
Io = 0...Io nom
–25
–25
–55
–40
–40
–55
°C
Case temperature
95
105
105
Storage temperature
not operational
105
The case temperature TC should not exceed the maximum value. In applications with limited air circulation, additional
measures should be taken (either larger spacing or a fan) to avoid case temperatures higher than TC max
!
Table 4: MTBF
Values at specified
Case Temperature
Modules Types
Ground Benign
40°C
Ground Fixed
40°C 70°C
Ground Mobile
40°C 70°C
Unit
MTBF according to
MIL-HDBK-217F
Group 01
2'900'000
2'300'000
1'400'000 310'000
1'000'000 270'000
430'000 150'000
310'000 110'000
h
Group 02/03
6 - 12
Edition 2/96 - © Melcher AG
MELCHER
The Power Partners.
Rugged Environment
DC-DC Converters <40 W
3 Watt-Family
Electrical Input and Output Data
General Conditions: TA = 25°C, unless otherwise specified
Table 5: Input Data
Input
.. IPS/IPW 3-05 .. .. IPS/IPW 3-12 .. .. IPS/IPW 3-15 ..
min typ max min typ max min typ max
Characteristics
Conditions
Unit
Ui
Input voltage
range
24 IPS/IPW
48 IPS/IPW
TA min...TA max
Io = 0...Io nom
10
18
33
72
10
18
33
72
10
18
33
72
V DC
Ui abs
Input voltage
limits without
any damage
24 IPS/IPW 1
48 IPS/IPW 2
0
0
45
75
0
0
45
75
0
0
45
75
Ii o
No load input current
Ui nom = 24 V, Io = 0
Ui nom = 48 V, Io = 0
5
3
5
3
5
3
mA
Ii SD
Ii L
Input current in
shutdown condition
Ui min...Ui max
TA min...TA max
1.3
1.25 Ii
30
1.3
1.25 Ii
30
1.3
1.25 Ii
30
Input current limitation
response
Ui min...Ui max
TA min...TA max
Io = 0...Io nom
ii rfi
RFI current at the input
mApp
V DC
USD
Shutdown voltage
for converter
operating
not operating
open or 8...10
–0.3...+2
open or 8...10
–0.3...+2
open or 8...10
–0.3...+2
ISD
fs
Shutdown current
for converter
operating
not operating
+1...+5
–25...–35
+1...+5
–25...–35
+1...+5
–25...–35
µA
Switching frequency
Ui min...max, Io nom
TA min...TA max
130
130
130
kHz
1 35 V DC for 500 ms, repetition rate 50 s; 45 V DC for 10 ms repetition rate 10 s; according to Siemens standard SN 26555, section 9
2 The applied minimum load must be 25% between 72.0...75.0 V DC
Table 6: Output Data
Output
.. IPS/IPW 3-05 ..
.. IPS/IPW 3-12 ..
.. IPS/IPW 3-15 ..
min typ max
12.24 14.70 15.30
Characteristics
Conditions
Ui nom, Io nom
Ui min…Ui max
min typ max
min typ max
Unit
V DC
mA
Uo
Output voltage
Nominal output Group 01
current
4.90
5.10
11.76
Io nom
500
250
250
125
200
100
Group 02/03 TA min...TA max
uo
Output voltage noise
(BW = 20 MHz)
Ui min...Ui max
Io nom
100
100
100
mVpp
∆Uo U
∆Uo I
Static line regulation
Static load regulation
±10
±12
±15
mV
%
Ui min...Ui max
0...5
0...2 1
0...2 1
Io nom...0.25 Io nom
αUo
Temperature coefficient
Ui nom, Io nom
±0.02
±0.02
±0.02
16+5/–0%
15
%/K
V
Output overvoltage clamping
5.6 +5/–0%
13 +5/–0%
Co ext
Maximum admissible
capacitive load
33
15
µF
1 0...5% for the galvanically isolated second output of the types ..05-12.. and ..05-15..
Double and dual output units should have the same (%) load conditions at both outputs to comply with above specifications
Table 7: Efficiency
Efficiency
.. IPS/IPW 3-05 ..
.. IPS/IPW 3-12 ..
.. IPS/IPW 3-15 ..
Characteristics
Conditions
min typ max
min typ max
min typ max
Unit
%
η
Efficiency
Ui nom = 24 V, Io nom
Ui nom = 48 V, Io nom
78
80
80
82
78
80
80
82
78
80
80
82
Edition 2/96 - © Melcher AG
6 - 13
MELCHER
The Power Partners.
3 Watt-Family
DC-DC Converters <40 W
Rugged Environment
Installation Instructions
Isolation Tests
Input to output isolation voltage tests are performed as factory tests (100%) and should not be repeated in the field.
Melcher will not honour any guarantee/warranty claims resulting from high voltage field tests.
Table 8: Isolation test voltage, coupling capacitance and insulation resistance
Characteristics
Conditions
IPS
500
1400
700
800
500
1400
700
800
300
IPW 1
1060
Unit
Vrms
Vpp
V
Uis io
Isolation test voltage
AC: 50 Hz,
1 minute
Input to output
3000
DC: 1 second 2
DC: 1 second 3
1500
1700
Uis oo
Isolation test voltage
output to output 4
AC: 50 Hz,
1 minute
1060
Vrms
Vpp
V
3000
DC: 1 second 2
DC: 1 second 3
1500
1700
Cio
Ris
Coupling capacitance
Insulation resistance
typ
external 5
pF
at 100 V DC
≥2000
MΩ
after 1 minute
1
According to EN 41003 (1993)
2 For production test purposes in accordance with IEC 950/EN 60950
3 Factory test procedure
4
Group 03
5 Important: All IPW types need (an) external coupling capacitor(s) Cio of min. 220 pF, 1 kVrms
Connection in Series
+Vo
+Uo
Unit 1
If the outputs of one or more units are connected in series
each individual output should be protected by a zener diode
or preferably by a suppressor diode to avoid overvoltages
or reverse polarity at the individual outputs, e.g.: 1N5908
(5 V), BZW04-11 (12 V), BZW04-14 (15 V) or equivalent
types.
Go
–Vo
Such destructive voltages may occur at switch-on cycle of
the converters, if the output voltages do not rise at the same
time. The "slower" output(s) could be supplied and, as a
result, destroyed by the "faster" output(s) via the load. The
maximum output current is limited by the lowest current
limitation.
+Vo
Unit 2
Go
–Vo
–Uo
Connection in Parallel
Fig. 1
Connection of the outputs of one or more units in parallel is
not permitted. The load distribution and the ripple values
could not be controlled.
Outputs connected in series
Shutdown Description
Cleaning
The shutdown terminal is used to switch the converter out-
put voltage Uo on and off via a control signal (e.g. using an
open collector drive). See "Electrical Input and Output
Data".
Two CFC free cleaning solvents have been tested and can
be recommended:
– Prozone from BP
– Zestron from Dr. O. K. Wack Chemie GmbH (Germany)
The output voltage is switched on when the shutdown ter-
minal is open circuit or +8...+10 V. The output voltage is
switched off when a voltage of –0.3...+2 V is applied to the
shutdown terminal. At the open shutdown pin 10...12 V will
appear.
Submersion of the units in water for rinsing is permitted.
Drying should be done in the air.
6 - 14
Edition 2/96 - © Melcher AG
MELCHER
The Power Partners.
Rugged Environment
DC-DC Converters <40 W
3 Watt-Family
Functional Description and Block Diagrams
This is the reason why double and dual output units should
always have the same (%) load conditions at both outputs
to comply with the specified data. The current limitation is
located on the primary side, limiting the total output current.
These converters are primary controlled flyback converters
using Pulse With Modulation (PWM). The output voltage is
monitored via a separate transformer winding very close to
the secondary winding(s) and fed back to the control circuit.
1
1
Vi
Vi
2
13
12
Vo
2
13
12
Vo
PWM
PWM
Go
Go
23
24
20
23
24
20
Gi
SD
Gi
Cio
SD
Cio
Fig. 2
IPS 3, Group 01
Fig. 5
IPW 3, Group 01, external Cio is required
1
1
Vi
Vi
2
15
2
+Vo
15
+Vo
Go
PWM
PWM
10
11
10
11
Go
23
23
Gi
Gi
13
13
–Vo
–Vo
24
24
Cio
20
20
SD
SD
Cio
Fig. 3
IPS 3, Group 02
Fig. 6
IPW 3, Group 02, external Cio is required
1
1
Vi
Vi
2
2
12
12
Vo1
Vo1
Go1
9
9
Go1
Vo2
PWM
PWM
13
13
Vo2
23
Gi
23
Gi
16
16
Go2
Go2
24
24
20
20
SD
SD
2 × Cio
2 × Cio
Fig. 4
IPS 3, Group 03
Fig. 7
IPW 3, Group 03, external 2 × Cio is required
Pin Configuration
Table 9: IBEK pin configuration
Group
01
1
2
9
10
11
-
12
Go
-
13
Vo
15
16
20
SD
SD
SD
23
Gi
Gi
Gi
24
Gi
Gi
Gi
Vi
Vi
Vi
Vi
Vi
Vi
-
-
-
-
+Vo
-
-
-
02
Go
-
Go
-
–Vo
Vo2
03
Go1
Vo1
Go2
Table 10: Alternative pin configuration
Group
04
1
-
2
3
9
-
11
-
12
-
14
Vo
16
Go
Go
20
-
22
Vi
Vi
23
Vi
Vi
24
-
Gi
Gi
Gi
Gi
05
-
Go
–Vo
-
+Vo
-
-
The converters of groups 04 and 05 are designated as CPS 3 types. The type variety and all specifications are the same as for the
IPS 3 group 01 and 02 with the exception of the shutdown function which is not available.
Edition 2/96 - © Melcher AG
6 - 15
MELCHER
The Power Partners.
3 Watt-Family
DC-DC Converters <40 W
Rugged Environment
Mechanical Data
Dimensions in mm.Tolerances ±0.2 mm, unless otherwise specified.
European
Projection
min. 34
33
2.54
1
1
mounting space
required
ø 0.5
Fig. 8
Fig. 9
Case: DIL 24. Foot print shown for IBEK pin configura-
tions. Hole diameter required in PCB: 0.8 ±0.1 mm
Weight: 15 g
Foot print shown for alternative pin configurations.
Hole diameter required in PCB: 0.8 ±0.1 mm.
Type Key and Product Marking
Type Key:
24 IPS 3 - 12 - 12 - T
Nominal input voltage in volt .................................... 24, 48
Family ........................................................ IPS, IPW, CPS
Nominal output power in watt........................................... 3
Nominal output voltage for output 1 in volt ......... 05, 12, 15
Dash: Designates double output unit with two independent,
galvanically isolated outputs .................................. -
Nominal output voltage for output 2 in volt ......... 05, 12, 15
Operating ambient temperature range TA
TA = –25...71°C .................................................... -T
TA = –40...85°C ................................................... -S
Product Marking:
Main face: Manufacturer's name (IBEK), specific type designation, input voltage range, input and output pin allocation.
Bottom: Date code.
6 - 16
Edition 2/96 - © Melcher AG
MELCHER
The Power Partners.
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