70IMX4-15-8 POWER ONE, 70IMX4-15-8 Datasheet - Page 7

• Manufacturer Part Number: 70IMX4-15-8
• Description: Module DC-DC 1-OUT 15V 0.28A 4.2W 13-Pin DIL
• Manufacturer: POWER ONE
• Type: Step Downr

Specifications of 70IMX4-15-8

• Package: 13DIL
• Output Current: 0.28(Typ) A
• Output Voltage: 15 V
• Input Voltage: 70 V
• Number Of Outputs: 1
• Output Power: 4.2(Typ) W

BCD20006-G Rev AA, 8-Apr-09
Fig. 9
Overload switch-off (hiccup mode).
Thermal Considerations
If a converter, mounted on a PCB, is located in free, quasi-
stationary air (convection cooling) at the maximum ambient
temperature T
is operated at nominal input voltage and output power, the
case temperature T
temperature T
indicated value T
relationship between T
conditions of operation and integration into a system. The
thermal conditions depend on input voltage, output current,
airflow, temperature of surrounding components and surfaces
and the properties of the printed circuit board. T
therefore only an indicative value, and under practical
operating conditions, the ambient temperature T
higher or lower.
Short Circuit Behavior
The current limitation shuts down the converter, when a short
circuit is applied to the output. It acts self-protecting, and
automatically recovers after removal of the overload condition.
Output Overvoltage Protection
The outputs are protected against overvoltages by Zener
diodes. In the event of an overvoltage, the converter 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 converters are not designed to withstand external
overvoltages applied to the outputs.
Connection in Series
The outputs of single or dual-output models can be connected
in series without any precautions, taking into consideration
that the output voltage should remain below 60 V for SELV
operation.
Connection in Parallel
Several converters with equal output voltage can be
Caution: The case temperature T
point of case temperature T
circumstances exceed the specified maximum. The installer must
ensure that under all operating conditions T
limits stated in the table Temperature Specifications.
100
V
70
o
0
[%]
A max
C
C max
(see Mechanical Data) will approach the
(see table Temperature specifications) and
C
measured at the measuring point of case
overload short circuit condition
switch-off
after the warm-up phase. However, the
®
A
C
and T
(see Mechanical Data) may under no
C
C
measured at the measuring
depends heavily on the
0.3 s
C
remains within the
t [ms]
05041a
A
may be
A max
Page 7 of 12
is
connected in parallel and will share their output current quite
equally. However, this may cause start-up problems and is only
recommended in applications, where one converter is able to
deliver the full load current, e.g., in true redundant systems.
Typical Performance Curves
Fig. 11
V
load connected to Vo+ and Vo –.
Fig. 10
V
Fig. 12
Cross load regulation of dual-output models. V
(typ) for various I
o
o
versus I
versus I
5.25
4.75
4.25
16.5
15.5
14.5
V
V
31.5
30.5
29.5
28.5
5.0
4.5
4.0
o
o1
V
15
14
30
29
16
31
[V]
o1
+ V
0
0
0
[V]
IMX4 DC-DC Series Data Sheet
o
o
o2
(typ.) of dual-output models (±15 V), with a 30 V
(typ) of single-output models (20/40IMX4-05)
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 I
[V]
20
20
o2
4-Watt DC-DC Converters
(40IMX4-1515).
I
o2
40
40
= 14 mA
60
60
I
o2
= 140 mA
80
80
100
100
www.power-one.com
120
120
o1
versus I
140
140
05058a
05056a
05057a
I
o1
I
o1
o
[mA]
o
[mA]
[A]