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48IMS6-0505-9 데이터시트, 핀배열, 회로
Industrial Environment
DC/DC Converters < 40W
6 Watt SMD and through hole
DC/DC converters
Input to output electric strength test up to 2 kV DC
Input voltage ranges:
18...36 and 36...75 V DC
Single and dual outputs of 5, 12, 15 V DC
Wide input voltage ranges
Electrical isolation, single and dual outputs
Immunity to IEC/EN 61000-4-2, -3, -4, -5 and -6
High efficiency (typ. 82%)
• Flex power: flexible load distribution
No load and short-circuit proof
High reliability and no derating
Operating ambient temperature –40...+ 71 oC
Industrial, alternative and SMD pinout
DIL 24 case with 9.0 mm profile
Safety approvals pending to IEC/EN 60950, UL 1950
LGA
C
IMS6 Series
IMS 6 Series
Summary
The IMS 6 series of board mountable 6 W DC-DC convert-
ers has been designed according to the latest industry re-
quirements and standards. The converters are particularly
suitable for use in mobile or stationary applications in trans-
port, industry or telecommunications where variable input
voltages or high transient voltages are prevalent.
Covering a total input voltage range from 18 V DC up to
75 V DC.
The converters are designed and built according to the
international safety standards IEC/EN 60950, UL 1950,
CAN/CSA C22.2 No.950-95 and are LGA and UL marked.
A special feature is their small case size, DIL 24 with only
9.0 mm profile. The circuit comprises integrated planar
magnetics and all components are automatically assem-
bled and solidly soldered onto a single PCB without any
wire connections. Thanks to the rigid mechanical design the
units withstand an extremely high level of shock and vibra-
tions. Careful considerations of possible thermal stresses
ensure the absence of hot spots providing long life in envi-
ronments where temperature cycles are a reality. The ther-
mal design allows operation at full load up to an ambient
temperature of 71 C in free air without using any potting
material.
Options : SMD pinout or K-pinout, an alternative to the
standard industrial pinout, provide a high level of applica-
tion specific engineering and design-in flexibility.
Table of Contents
Page
Summary .......................................................................... 1
Type Survey and Key Data .............................................. 2
Type Key .......................................................................... 2
Functional Description ...................................................... 3
Electrical Input Data ......................................................... 4
Electrical Output Data ...................................................... 6
Page
Electromagnetic Compatibility (EMC) .............................. 8
Mechanical Data .............................................................. 9
Immunity to Environmental Conditions ........................... 10
Safety and Installation Instructions ................................ 11
Description of Options .................................................... 13
Edition 1 06.00




48IMS6-0505-9 pdf, 반도체, 판매, 대치품
Industrial Environment
DC/DC Converters < 40W
IMS6 Series
Electrical Input Data
General conditions: TA = 25 C, unless TC is specified.
Table 2: Input Data
Input
24 IMS 6
48 IMS 6
Characteristics
Ui
Ui nom
Ui sur
t start up
Input voltage range
Nominal input voltage
Repetitive surge voltage
Converter start-up time 1
trise Rise time 1
Conditions
TC min...TC max
Io = 0...Io nom
min
18
abs. max input (3 s)
Worst case condition at
Ui min and full load
Ui nom
Io nom
resistive load
capacitive load
typ
24
0.25
max min
36 36
40
0.5
5
12
typ max Unit
75 V DC
48
100
0.25 0.5 s
5 ms
12
Ii o
Ci
Iinr p
fs
I i rr
ui RFI
No load input current
Input capacitance
Inrush peak current
Switching frequency
Reflected ripple current
Input RFI level
conducted and radiated
Io = 0, Ui min...Ui max
for surge calculation
Ui = Ui nom 3
Ui min...Ui max, Io = 0...Io nom
Io = 0...Io nom
EN 55022 2
15 20
0.54
3.7
approx. 400
B1
30
5 10
0.3
4.2
approx. 400
B1
30
mA
uF
A
kHz
mApp
1 Measured with a resistive or max. admissible capacitive load. (See fig.: Converter start-up and rise time)
2 External filter required. (See: Filter recommendations for compliance with EN 55022)
3 Source impedance according to prETS 300132-2, version 4.3.
Edition 1 06.00

4페이지










48IMS6-0505-9 전자부품, 판매, 대치품
Industrial Environment
DC/DC Converters < 40W
IMS6 Series
Thermal Considerations
If a converter, mounted on a PCB, is located in free, quasi-
stationary air (convection cooling) at the indicated maxi-
mum ambient temperature TA max (see table: Temperature
specifications) and is operated at its nominal input voltage
and output power, the case temperature TC measured at
the: Measuring point of case temperature TC (see: Me-
chanical Data) will approach the indicated value TC max af-
ter 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, tem-
perature of surrounding components and surfaces and the
properties of the printed circuit board. TA max is therefore
only an indicative value and under practical operating con-
ditions, the ambient temperature TA may be higher or lower
than this value.
Caution: The case temperature TC measured at the
Measuring point of case temperature TC (see: Mechani-
cal Data) may under no circumstances exceed the speci-
fied maximum value. The installer must ensure that un-
der all operating conditions TC remains within the limits
stated in the table Temperature specifications.
Output overvoltage protection
The outputs of the IMS 6 converters are protected against
overvoltages by Zener diodes. In the event of an overvolt-
age on the output, the unit will shut-down and attempt to
restart automatically. The main purpose of this feature is to
protect against possible overvoltages which could occur
due to a failure in the feedback control circuit. The units are
not designed to withstand external overvoltages applied to
the outputs.
Connection in series
The outputs of single or dual output units can be connected
in series without any precautions, taking into consideration
that the highest output voltage should remain below 60 V for
SELV operation.
Connection in parallel
The outputs of several units with equal nominal output volt-
age can be connected in parallel. Approximate current
sharing between 2 or several units is ensured by their load
dependent output characteristic.
Short Circuit Behaviour
The current limit characteristic shuts down the converter
whenever a short circuit is applied to its output. It acts self-
protecting and automatically recovers after removal of the
overload condition.
Typical Performance Curves
Uo [V]
5.25
5.0
05056
4.75
4.5
4.25
4.0
0 0.5 1.0
Fig. 12
Uo versus Io (typ) of single output units (example for
48IMS6-05-9
Io [A]
Uo1 + Uo2 [V]
31.5
05057
31
30.5
30
29.5
29
28.5
0
33 66
100 133 166 200 233 Io [mA]
Fig. 13
Uo versus Io (typ) of dual output units ( 15 V), with 30 V
load connected to Vo+ and Vo–.
Uo1 [V]
16.5
05058
Uo1, Uo2 [V]
12.8
05059
16 12.4
15.5
15
14.5
Io2 = 140 mA
Io2 = 14 mA
14
0 33 66 100 33 66 200 233 Io1 [mA]
Fig. 14
Cross load regulation of dual output units. Uo1 versus
Io1 (typ) for various Io2 (48IMS6-1515-9).
12
11.6
Uo2
Uo1
11.2
0
150
300
Io1
Io1 no
[%]
Fig. 15
Flexible load distribution on dual outputs (2 x 12 V) with
load variation from 0...150% of Po1 nom on output 1.
Output 2 loaded with 25% of Po2 nom.
Edition 1 06.00

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6 Watt SMD and through hole DC/DC converters

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