IMS6 Series: 6W DC-DC Converters
18-36V & 36-75V Inputs
Single and Dual outputs 5V, 12V & 15V
Input to output electric strength test up to 2 KV DC
Input voltage ranges:-
18...36 and 36..75 VDC
Single and dual outputs of 5, 12 & 15 VDC
•
Wide input voltage ranges
•
Electrical isolation, single and dual outputs
•
Immunity to IEC/EN 61000-4-2, -3, -4, 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 –40...+71°C
•
Industrial and alternative pinouts
•
DIL 24 case with 8.5 mm profile
Safety according to IEC/EN 60950, UL 1950
LGA
Product Specifications
May 2002
20
0.8"
8.5
0.34"
32
1.25"
Summary
The IMS6 series of board mountable 6 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 mobile or stationary applications in
transport, 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, with single and dual outputs from 5 V DC up to
±15 V DC with flexible load distribution on dual outputs.
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
8.5 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 vi-
brations. Careful considerations of possible thermal
stresses ensure the absence of hot spots providing long
life in environments where temperature cycles are a reality.
The thermal design allows operation at full load up to an
ambient temperature of 71°C in free air without using any
potting material.
Option:- K-pinout, an alternative to the standard industrial
pinout, provides a high level of application specific engi-
neering and design-in flexibility.
Table of Contents
Page
Page
Thermal considerations ................................................... 6
Mechanical Data .............................................................. 7
Electromagnetic Compatibility (EMC) .............................. 7
Immunity to Environmental Conditions ............................ 8
Safety and Installation Instructions .................................. 9
Description of Options ................................................... 10
Page 1 of 10
Summary .......................................................................... 1
Type Survey and Key Data .............................................. 2
Type Key .......................................................................... 2
Functional Description ..................................................... 3
Electrical Input Data ......................................................... 4
Electrical Output Data ...................................................... 5
May 31, 2002
Rev 1.1
www.power-one.com
IMS6 Series: 6W DC-DC Converters
18-36V & 36-75V Inputs
Single and Dual outputs 5V, 12V & 15V
Type Survey and Key Data
Table 1: Type survey
Output 1
U
o1 nom
I
o1 nom
[V DC]
[A]
1
Output 2
U
o2 nom
I
o2 nom
[V DC]
[A]
1
Output Power
P
o nom
[W]
Input voltage
range
[V DC]
Efficiency
η
typ
[%]
Product Specifications
May 2002
Type
designation
Options
5
5
12
12
15
15
+5
+5
+12
+12
+15
+15
1
1000
1000
500
500
400
400
500
500
250
250
200
200
-
-
-
-
-
-
–5
–5
–12
–12
–15
–15
-
-
-
-
-
-
500
500
250
250
200
200
5.0
5.0
6.0
6.0
6.0
6.0
5.0
5.0
6.0
6.0
6.0
6.0
18...36
36...75
18...36
36...75
18...36
36...75
18...36
36...75
18...36
36...75
18...36
36...75
82
82
83
83
84
84
82
82
83
83
84
84
24IMS6-05-9
48IMS6-05-9
24IMS6-12-9
48IMS6-12-9
24IMS6-15-9
48IMS6-15-9
24IMS6-0505-9
48IMS6-0505-9
24IMS6-1212-9
48IMS6-1212-9
24IMS6-1515-9
48IMS6-1515-9
K, Z
K, Z
K, Z
K, Z
K, Z
K, Z
K, Z
K, Z
K, Z
K, Z
K, Z
K, Z
Flexible load distribution on double outputs possible.
Type Key
24 IMS 6 - 12 12 -9 K Z
Input voltage range
U
i
18...36 V DC .............................................. 24
36...75 V DC .............................................. 48
Series ......................................................................... IMS6
Output voltage type for output 1 ........................ 05, 12, 15
Output voltage type for output 2 ........................ 05, 12, 15
Operating ambient temperature range
T
A
–40...71°C .................................................. -9
Options:
Alternative pinout ......................................... K
Open frame .................................................. Z
Examples: 48IMS6-0505-9K: DC-DC converter, input voltage range 36...75 V, 2 outputs providing ±5 V, 500 mA,
temperature range –40...71°C, alternative pinout.
May 31, 2002
Rev 1.1
www.power-one.com
Page 2 of 10
IMS6 Series: 6W DC-DC Converters
18-36V & 36-75V Inputs
Single and Dual outputs 5V, 12V & 15V
Functional Description
The IMS6 DC-DC modules are feedback controlled flyback
converters using current mode PWM (Pulse Width Modula-
tion).
The converter input is protected against transients by
means of a suppressor diode.
The output voltage is monitored by a separate transformer
winding close to the secondary windings and fed back to
the control circuit.
03044
Product Specifications
May 2002
Current limitation is provided by the primary circuit, thus
limiting the total output current (I
o nom
for the single and
I
o1 nom
+
I
o2 nom
for the dual output types).
The close magnetic coupling provided by the planar con-
struction ensures very good regulation and allows for flex-
ible load distribution on dual output types.
03045
Vi+
22
23
14
Vo+
Vi+
22
23
14
Vo+
PWM
16
Vo–
2
PWM
16
Go
2
10
Vi–
3
Vi–
3
11
Vo–
Fig. 1
Block diagram for single output types.
Standard industrial pinout.
03046
Fig. 2
Block diagram for dual output types.
Standard industrial pinout.
03047
Vi+
1
n.c.
2
PWM
13
Vo+
Vi+
1
PWM
15
Vo+
10
12
Vo–
11
Go
Vi–
24
Vi–
24
13
Vo–
Fig. 3
Block diagram for single output types.
Special pinout (option K).
Fig. 4
Block diagram for dual output types.
Special pinout (option K).
May 31, 2002
Rev 1.1
www.power-one.com
Page 3 of 10
IMS6 Series: 6W DC-DC Converters
18-36V & 36-75V Inputs
Single and Dual outputs 5V, 12V & 15V
Electrical Input Data
General conditions:
T
A
= 25°C, unless
T
C
is specified.
Table 2: Input Data
Input
Characteristics
U
i
U
i nom
U
i sur
t
start up
t
rise
Input voltage range
Nominal input voltage
Repetitive surge voltage
Converter start-up time
1
Rise time
1
Conditions
T
C min
...T
C max
I
o
= 0...I
o nom
abs. max input (3 s)
Worst case condition at
U
i min
and full load
U
i nom
I
o nom
resistive load
capacitive load
15
0.25
min
18
24
40
0.5
5
12
20
0.54
3.7
approx. 400
30
B
24IMS6
typ
max
36
Product Specifications
May 2002
48IMS6
min
36
48
100
0.25
0.5
5
12
5
10
0.3
4.2
approx. 400
30
B
mA
µF
A
kHz
mA
pp
s
ms
typ
max
75
Unit
V DC
I
i o
C
i
I
inr p
f
s
I
i rr
u
i RFI
1
2
3
No load input current
Input capacitance
Inrush peak current
Switching frequency
Reflected ripple current
Input RFI level
conducted and radiated
I
o
= 0,
U
i min
...U
i max
for surge calculation
U
i
=
U
i nom 3
U
i min
...U
i max
,
I
o
= 0...I
o nom
I
o
= 0...I
o nom
EN 55022
2
Measured with a resistive or max. admissible capacitive load. (See fig.:
Converter start-up and rise time)
External filter required. (See:
Filter recommendations for compliance with EN standards)
Source impedance according to prETS 300132-2, version 4.3.
U
o
U
o nom
Reverse Polarity Protection at Input
t
rise
04008
The suppressor diode on the input also provides for re-
verse polarity protection by conducting current in the re-
verse direction, thus protecting the unit. An external fuse is
required to limit this current:
t
t
start up
Fig. 5
Converter start-up and rise time
Inrush Current
The inrush current has been kept as low as possible by
choosing a very small input capacitance. A series resistor
may be inserted in the input line to limit this current further.
1 A/Div.
4
3
2
1
0
04034
– For 24IMS6 a fast 1 A (F1A) fuse is recommended
– For 48IMS6 a fast 0.63 A (F0.63A) fuse is recommended
Filter recommendations for compliance with EN 55022
Electromagnetic emission requirements according to table
Input data
can be achieved by adding an external capacitor
as close as possible to the input terminals.
04035
Vi+
C
i
Vi–
Fig. 7
Input filter arrangement
Table 3: Input filter components (EN 55022)
Ref.
5
µs/Div.
C
1
Type
24IMS6
4.7
µF
,
63 V,
85°C
48IMS6
2.2
µF
,
100 V,
85°C
Fig. 6
Typical inrush current at U
i nom
, P
o nom
versus time meas-
ured according to prETS 300132-2, version 4.3.
ceramic or film
May 31, 2002
Rev 1.1
www.power-one.com
Page 4 of 10
IMS6 Series: 6W DC-DC Converters
18-36V & 36-75V Inputs
Single and Dual outputs 5V, 12V & 15V
Electrical Output Data
General conditions:
T
A
= 25°C, unless
T
C
is specified.
Table 4a: Output data for single output units
Output
Characteristics
U
o
Output voltage
Conditions
U
o nom
min
5.0 V
typ
max
5.04
1000
1400
±1
±3
80
20
40
130
680
3
Product Specifications
May 2002
12.0 V
min
11.90
500
700
±1
±3
120
40
60
130
150
±250
1
±0.02
typ
max
12.10
min
14.88
15.0 V
typ
max
15.12
400
600
±1
±3
150
50
75
130
100
±250
1
±0.02
%
µF
mV
ms
%/K
mV
pp
%
Unit
VDC
mA
U
i nom,
I
o
= 0.5
I
o nom
4.96
U
i min
...U
i max
U
i nom
,
T
C
= 25°C
U
i min
...U
i max
,
I
o nom
U
i nom
I
o
= (0.1...1)
I
o nom
U
i min
...U
i max
I
o
=
I
o nom
Min. load 1%
I
o nom
Output current
I
o L
∆U
Current limit
2
∆U
o U
Line regulation
Load regulation
u
o1, 2
Output voltage noise
U
o clp
Output overvoltage
limitation
C
o ext
Admissible
capacitive load
u
o d
t
d
α
Uo
Dynamic Voltage deviat.
U
i nom
load
Recovery time
I
o nom
×
1/2
Io
nom
regulat.
Temperature coefficient
∆U
o
/∆
T
C
U
i min
...U
i max
I
o
= 0...I
o nom
±250
1
±0.02
Table 4b: Output data for dual output units
Output
Characteristics
U
o1
U
o2
Output voltage
Conditions
U
o nom
min
±5 V
typ
max
5.04
5.05
2 x 500
2 x 3.5
±1
±3
100
40
60
130
680
3
±12 V
min
11.90
11.88
2 x 250
2 x 4.0
±1
±3.5
140
45
70
130
150
±600
1
±0.02
typ
max
min
±15 V
typ
max
15.12
15.15
2 x 200
2 x 4.2
±1
±3
150
50
75
130
100
±750
1
±0.02
%
µF
mV
ms
%/K
mV
pp
Unit
VDC
mA
W
%
U
i nom
4.96
I
o1
=
I
o2
= 0.5
I
o nom
4.95
U
i min
...U
i max
U
i nom
,
T
C
= 25°C
U
i min
...U
i max
,
I
o nom
U
i nom
I
o
= (0.1...1)
I
o nom
U
i min
...U
i max 5
I
o
=
I
o nom 6
Min. load 1%
12.10 14.88
12.12 14.85
I
o nom
Output current
1
P
o L
∆U
Power limit
2 3
∆U
o U
Line regulation
Load regulation
4
u
o1, 2
Output voltage noise
U
o clp
Output overvoltage
limitation
C
o ext
Admissible
capacitive load
u
o d
t
d
α
Uo
1
2
3
4
5
6
Dynamic Voltage deviat.
load
Recovery time
regulat.
Temperature coefficient
∆U
o
/∆
T
C
U
i nom
I
o nom
×
1
/
2
I
o nom
U
i min
...U
i max
I
o
= 0...I
o nom
±250
1
±0.02
Each output capable of delivering full output power.
The current limit is primary side controlled.
Sum of both outputs.
Conditions for specified output. Other output loaded with constant current
I
o
= 0.5
I
o nom
.
BW = 20 MHz.
Measured with a probe according to EN 61204.
May 31, 2002
Rev 1.1
www.power-one.com
Page 5 of 10
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
