Board Mountable
DC-DC Converters
IML 10 Series
10 Watt DC-DC Converters
Wide input voltage ranges up to 75 V DC
1 or 2 outputs up to 30 V DC
1500 V DC I/O electric strength test voltage
•
Wide input voltage ranges
•
Electrical isolation, single and double output units
•
Immunity to IEC/EN 61000-4-2, -3, -4, -5 and -6
•
High efficiency (typ. 84%)
• Flex power: flexible load distribution
•
No load and short-circuit proof
•
High reliability and no derating
•
Operating ambient temperature range –25...60°C
•
2"
×
1" case with 10.5 mm profile
• Supplementary insulation
Safety according to IEC/EN 60950, UL 1950
LGA
IML 10 Series
25.4
1.0"
10.5
0.42"
50.8
2.0"
Summary
The IML10 series of board mountable 10 Watt DC-DC con-
verters has been designed according to the latest industry
requirements and standards. The converters are particu-
larly suitable for use in controlled environments, in battery
supported applications in industry or telecommunications
where high power densitiy and outstanding reliability are
required.
Providing 3 input voltage ranges, 8.4...16.8, 18...36 and
36...75 V DC, the units are available with single and electri-
cally isolated double outputs allowing the configuration of
output voltages from 5 up to 30 V DC, with flexible load dis-
tribution on double output units. Features include efficient
input and output filtering with transient and surge protec-
tion, low output ripple and noise, consistently high effi-
ciency over the entire input voltage range, high reliability as
well as excellent dynamic response to load and line
changes.
The converters provide supplementary insulation with
SELV outputs as e.g. required in battery supported systems
where the bus voltage may exceed the SELV limit of
60 V DC. They are designed and built according to the inter-
national safety standards IEC/EN 60950, UL 1950, CAN/
CSA C22.2 No.950-95 and are LGA and UL marked. Ap-
provals pending.
A special feature is their small case size, 2"
×
1" with
10.5 mm profile. The circuit comprises of integrated planar
magnetics and all components are automatically assem-
bled and solidly soldered onto a single PCB without any
wire connections. Magnetic feedback ensures maximum
reliability and repeatability in the control loop over all oper-
ating conditions. High efficiency, low heat dissipation and
careful considerations of possible thermal stresses ensure
the absence of hot spots providing high reliability. The ther-
mal design allows operation at full load up to an ambient
temperature of 60°C in free air without using any potting
material. Optionally the IML 10 series is available with the
industrial C pinout or with an SMD pinout, as well as with an
extended ambient temperature range –40...60°C.
Table of Contents
Page
Page
Safety and Installation Instructions .................................. 4
Description of Options ...................................................... 7
Accessories ...................................................................... 7
Summary .......................................................................... 1
Type Survey and Key Data .............................................. 2
Type Key .......................................................................... 2
Mechanical Data .............................................................. 3
Edition 6/4.2000
1/7
Board Mountable
Type Survey and Key Data
Table 1: Type survey
Output 1
U
o nom
I
o nom 1
[V DC]
[A]
3.3
3.3
3.3
5
5
5
12
12
12
15
15
15
5.1
12
12
12
15
15
15
1
DC-DC Converters
IML 10 Series
Output 2
U
o nom
I
o nom 1
[V DC]
[A]
-
-
-
-
-
-
-
-
-
-
-
-
3.3
12
12
12
15
15
15
-
-
-
-
-
-
-
-
-
-
-
-
1
0.35
0.45
0.45
0.30
0.35
0.35
Output
power
P
o nom
[W]
6.27
6.6
6.6
8
9.5
9.5
8.4
10.8
10.8
9
10.5
10.5
8.8
8.4
10.8
10.8
9
10.5
10.5
Input voltage
U
i min
...U
i max
[V DC]
8.4...16.8
18...36
36...75
8.4...16.8
18...36
36...75
8.4...16.8
18...36
36...75
8.4...16.8
18...36
36...75
36...75
8.4...16.8
18...36
36...75
8.4...16.8
18...36
36...75
Efficiency
h
typ
[%]
79
81
82
79
81
82
82
84
84
83
84
84
80
82
84
84
83
84
84
Type
designation
12 IML 10-03-3
24 IML 10-03-3
48 IML 10-03-3
12 IML 10-05-3
24 IML 10-05-3
48 IML 10-05-3
12 IML 10-12-3C2
24 IML 10-12-3C2
48 IML 10-12-3C2
12 IML 10-15-3C2
24 IML 10-15-3C2
48 IML 10-15-3C2
48 IML 10-0503-3
12 IML 10-12-12-3
24 IML 10-12-12-3
48 IML 10-12-12-3
12 IML 10-15-15-3
24 IML 10-15-15-3
48 IML 10-15-15-3
Options
1.9
2
2
1.6
1.9
1.9
0.7
0.9
0.9
0.6
0.7
0.7
1
0.35
0.45
0.45
0.30
0.35
0.35
-0, C, M, L, Z
-0, C, M, L, Z
-0, C, M, L, Z
-0, C, M, L, Z
-0, C, M, L, Z
-0, C, M, L, Z
-0, Z
-0, Z
-0, Z
-0, Z
-0, Z
-0, Z
-0, C, M, L, Z
-0, C, M, L, Z
-0, C, M, L, Z
-0, C, M, L, Z
-0, C, M, L, Z
-0, C, M, L, Z
-0, C, M, L, Z
Flexible load distribution on double outputs possible up to 75 % of the total output power
P
o nom
on one of the 2 outputs. The other
output should not exceed the difference to the total output power
P
o nom
.
Type Key
24 IML 10 - 12 - 12 -3 C M L Z
Input voltage range
U
i
8.4...16.8 V DC .......................................... 12
14...36 V DC .............................................. 24
36...75 V DC .............................................. 48
Series ...................................................................... IML 10
Output voltage for output 1 ................................ 05, 12, 15
Dash: Designates double output unit with two indepen-
dent galvanically isolated outputs ................. -
Output voltage for output 2 ...................................... 12, 15
Operating ambient temperature range
T
A
–25...60°C .................................................. -3
–40...60°C .................................................. -0
Options:
C-pinout ...................................................... C
Surface mount version with pins ................. M
Surface mount version with PCB lid ............ L
Open frame .................................................. Z
1
1
1
C-pinout excludes option M and vice versa
For delivery lead times contact factory. Some types require a minimum order quantity.
Examples: 48 IML 10-15-15-3: DC-DC converter, input voltage range 36...75 V, 2 galvanically isolated outputs each pro-
viding 15 V, 0.33 A, surface mount version.
24 IML 10-1212-3C: DC-DC converter, input voltage range 18...36 V, C-pinout with outputs
±12
V,
±0.45
A.
24 IML 10-12-3C2: DC-DC converter, input voltage range 18...36 V, C-pinout with one output 12 V, 0.9 A.
Edition 6/4.2000
2/7
Board Mountable
Mechanical Data
DC-DC Converters
IML 10 Series
European
Projection
Dimensions in mm. Tolerances
±0.3
mm unless otherwise indicated.
50.8 (2")
3.4 (0.13")
3 x 5.08 (0.2")
3.81(0.15")
3.81(0.15")
1
20.3 (0.8")
0.8
×
1.2 (0.03 x 0.05") Pins
∅
1.6 (0.06) PCB holes
5 x 3.81
(0.15")
20.3 (0.8")
10.5
(0.41")
09032
4
3.81(0.15")
10
4.6 (0.18")
Measuring point
of case temperature
T
C
45.7 (1.8")
S09030
PT 2.2
self tapping screws
Fig. 1
Case IML 10 with standard soldering pins
Weight: <20 g
50.8 (2")
35.5 (1.4")
0.5(0.02")
15.2 (0.6")
∅
1 (0.04") Pins
∅
1.2 (0.05") PCB holes
25.4 (1")
5.8 (0.2")
3
1
2
5
4
Fig. 2
Case IML 10 with C pinout (option C) for double output units, pins 6 and 7 are not fitted.
With single output units pins 4, 6 and 7 are not fitted.
Weight: <24 g
1.27 (0.05")
48 (1.9")
1
3 x 5.08
(0.2")
4
3.5 (0.14")
43.2 (1.7")
10
S90002
Fig. 3
Open frame
Weight: <20 g
1.2 (0.5")
Edition 6/4.2000
8.25
(0.32")
23 (0.9")
5 x 3.81
(0.15")
14
12.5
(0.49")
Measuring point of
case temperature
T
C
3.4 (0.13")
25.4 (1")
14
3/7
Board Mountable
3 x 5.08 (0.2")
DC-DC Converters
50.8 (2")
14
IML 10 Series
0.8
×
1.2 (0.03 x 0.05") Pins
3.81(0.15")
4
42.4 (1.67")
10
4.2 (0.17")
Fig. 4
Case IML 10, surface mount version with pins (option M)
Weight: <20 g
50.8 (2")
25.4 (1")
1
Fig. 5
Case IML 10, surface mount version with PCB lib (option L)
Weight: <20 g
Safety and Installation Instructions
Table 2: Pin allocation IML, option M and Z
Pin
1
2
3
4
10
11
12
13
14
Single output
Vi+
Vi–
n.c.
n.c.
Vo–
Vo+
Vo–
n.c.
n.c.
Dual output
Vi+
Vi–
n.c.
n.c.
Go
Vo1+
Go
Vo2+
n.c.
Double outputs
Vi+
Vi–
n.c.
n.c.
Vo1–
Vo1+
Vo2–
Vo2+
n.c.
Table 4: Pin allocation SMD version (option L)
Pin
1
2
3
4
5
6
7
8
9
10
11
Single output
Vo
Go
n.c.
n.c.
n.c.
n.c.
n.c.
n.c.
n.c.
n.c.
SD
no pin
no pin
n.c.
n.c.
n.c.
Vi–
Vi+
Dual output
Vo1
Go
Vo2
n.c.
n.c.
n.c.
n.c.
n.c.
Trim
n.c.
SD
no pin
no pin
n.c.
n.c.
n.c.
Vi–
Vi+
4/7
Table 3: C pinout (option C)
Pin
1
2
3
4
5
Edition 6/4.2000
Single output
Vi+
Vi–
Vo+
no pin
Vo–
Dual output
Vi+
Vi–
Vo+
Go
Vo–
12
13
14
15
16
17
18
10.5
(0.41")
Measuring point of
case temperature
T
C
90001
11.0
(0.43")
Measuring point of
case temperature
T
C
S09031
25.4 (1")
1
5 x 3.81
(0.15")
Board Mountable
Installation Instruction
DC-DC Converters
Isolation
IML 10 Series
Installation of the DC-DC converters must strictly follow the
national safety regulations in compliance with the enclo-
sure, mounting, creepage, clearance, casualty, markings
and segregation requirements of the end-use application.
Connection to the system shall be made via a printed circuit
board according to:
Mechanical Data.
The units should be connected to a secondary circuit.
Check for hazardous voltages before altering any connec-
tions.
Do not open the module.
Ensure that a unit failure (e.g. by an internal short-circuit)
does not result in a hazardous condition. See also:
Safety
of operator accessible output circuit.
Input Fuse
To prevent excessive current flowing through the input sup-
ply line in case of a short-circuit across the converter input
an external fuse should be installed in a non earthed input
supply line. We recommend a fast acting fuse F3.15 for
12 IML 10 types, F2A for 24 IML 10 types and F1A for
48 IML 10 types.
Cleaning Agents
In order to avoid possible damage, any penetration of
cleaning fluids has to be prevented, since the power sup-
plies are not hermetically sealed.
Standards and approvals
All DC-DC converters are pending to be UL recognized ac-
cording to UL 1950, UL recognized for Canada to CAN/
CSA C22.2 No. 950-95 and LGA approved to IEC/EN
60950 standards.
The units have been evaluated for:
• Building in
• Supplementary insulation input to output, based on their
maximum input voltage
• The use in a pollution degree 2 environment
• Connecting the input to a secondary circuit which is sub-
ject to a maximum transient rating of 1500 V
The DC-DC converters are subject to manufacturing sur-
veillance in accordance with the above mentioned UL,
CSA, EN and ISO 9001 standards.
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. Power-One will not honour any
guarantee claims resulting from electric strength field tests.
Table 5: Electric strength test voltages, clearance and
creepage distances
Characteristic
Electric strength
test voltage 1 s
Coupling capacitance
Isulation resistance
at 500 V DC
Partial discharge
extinction voltage
I/O
1.2
1.5
≈1.2
>100
Consult
factory
O/O
0.1
0.15
-
-
-
Unit
kV
rms
kV DC
nF
MΩ
kV
Protection Degree
The protection degree of the DC-DC converters is IP 30.
Safety of operator accessible output circuit
If the output circuit of a DC-DC converter is operator acces-
sible, it shall be an SELV circuit according to IEC/EN 60950
related safety standards
The insulation concept table below shows some possible
installation configurations, compliance with which causes
the output circuit of the DC-DC converter to be an SELV cir-
cuit according to IEC/EN 60950 up to a configured output
voltage (sum of nominal voltages if in series or +/– configu-
ration) of 30 V.
However, it is the sole responsibility of the installer to en-
sure the compliance with the relevant and applicable safety
regulations. More information is given in:
Technical Infor-
mation: Safety.
Edition 6/4.2000
5/7
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