Industrial Environment
DC-DC Converters <40 W
IMS 7-Family
7 W DC-DC Converters
IMS 7-Family
Input to output isolation test voltage 1500 V DC
Single and double outputs of 3.3, 5, 12, 15, 24 V DC
Input voltage ranges: 14...36 V DC and 36...75 V DC
• Wide input voltage ranges
• Galvanic isolation, single and double output units
• High efficiency (typ. >85%)
• Inhibit input, output voltage adjustable
• No load and short-circuit proof
• High reliability and no derating
w
• Operating ambient temperature range –25...+71°C
• Emissions below EN 55 022 level B.
• Immunity to IEC 1000- 4 -2, -3, -4, -5 and -6
• 2" × 1" case with 10.5 mm profile
ne
Safety according to IEC 950
LGA
C
Table of Contents
Page
Type Survey .............................................................. 6 - 49
Description ................................................................6 - 49
Functional Description............................................... 6 - 50
Safety and Installation Instructions ........................... 6 - 51
Electrical Input and Output Data ............................... 6 - 52
Description of Options............................................... 6 - 54
Electromagnetic Compatibility EMC.......................... 6 - 55
Supplementary Data ................................................. 6 - 56
Immunity to Environmental Conditions...................... 6 - 58
Mechanical Data ....................................................... 6 - 59
Type Key and Product Marking ................................. 6 - 60
Type Survey
Table 1: Type survey
Output 1
Output 2
Uo nom Io nom
A
Input Voltage Range and Efficiency
Option
Uo nom
Io nom
A
Ui min...Ui max
ηtyp
Ui min...Ui max
ηtyp
%
V DC
V DC
14...36 V DC
%
36...75 V DC
3.3
5.1
1.5
1.2
24 IMS 7-03-7
24 IMS 7-05-7
78
82
48 IMS 7-03-7
48 IMS 7-05-7
78
82
M1
X 2
C 3
5
0.7
0.3
0.24
0.15
5
0.7
0.3
0.24
0.15
24 IMS 7-05-05-7
24 IMS 7-12-12-7
24 IMS 7-15-15-7
24 IMS 7-24-24-7
83
84
84
84
48 IMS 7-05-05-7
48 IMS 7-12-12-7
48 IMS 7-15-15-7
48 IMS 7-24-24-7
83
84
84
84
12
15
24
12
15
24
1 Option M: Version for SMD mounting.
2 Option X: LED "Uo present", available for double output units.
3 Option C: C-pinout, excludes option M as well as galvanic isola-
tion between output 1 and 2 of double output units.
Description
The IMS 7 series has been designed according to the latest
industry requirements and standards (1995) and is particu-
larly suitable for industrial and telecom applications. The
converters are ideal for use in applications where variable
input voltages or high input transients are prevalent, e.g.
mobile applications. They feature consistently high effi-
ciency over the entire input voltage range, high reliability
and good dynamic response to line and load changes.
A special feature is their small case size, 2" × 1" with 10.5
mm height. Generous design margins have been applied.
The circuit is mounted on a single PCB, all components sol-
idly soldered without any wire connections and no potting
material is applied. The thermal design allows operation at
nominal load up to an ambient temperature of 71°C in free
air. For extremely high vibration environments the case has
holes allowing screw mounting.
Edition 2/96 - © Melcher AG
6 - 49
MELCHER
The Power Partners.
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