TDK Belleta iEA Series - Manual (Page 40)

Data Sheet: Belleta ® iEA Series –Single Output Eighth Brick
©2004 TDK Innoveta® Inc.
iEAFullDatasheet 032707 3/29/2007 Revision 2.0 ℡ (877) 498-0099
40/41
Input/Output Ripple and Noise Measurements:
100KHz
Voutput
Cext
1
2
+
12uH
1 2
esr<0.7
Battery
100KHz
+
RLoad
1
2 esr<0.1
-
Vinput
220uF
1
2
Ground Plane
33uF
1
2 -
The input reflected ripple is measured with a current probe and oscilloscope. The ripple
current is the current through the 12uH inductor.
The output ripple measurement is made approximately 9 cm (3.5 in.) from the power module
using an oscilloscope and BNC socket. The capacitor Cext is located about 5 cm (2 in.) from
the power module; its value varies from code to code and is found on the electrical data page
for the power module of interest under the ripple & noise voltage specification in the Notes &
Conditions column.
Safety Considerations:
For safety agency approval of the system in
which the DC-DC power module is installed,
the power module must be installed in
compliance with the creepage and clearance
requirements of the safety agency. The
isolation is basic insulation. For
applications requiring basic insulation, care
must be taken to maintain minimum
creepage and clearance distances when
routing traces near the power module.
As part of the production process, the power
modules are hi-pot tested from primary and
secondary at a test voltage of 1500Vdc.
To preserve maximum flexibility, the power
modules are not internally fused. An
external input line normal blow fuse with a
maximum value of 10A is required by safety
agencies. A lower value fuse can be
selected based upon the maximum dc input
current and maximum inrush energy of the
power module.
When the supply to the DC-DC converter is
less than 60Vdc, the power module meets
all of the requirements for SELV. If the
input voltage is a hazardous voltage that
exceeds 60Vdc, the output can be
considered SELV only if the following
conditions are met:
1) The input source is isolated from the
ac mains by reinforced insulation.
2) The input terminal pins are not
accessible.
3) One pole of the input and one pole
of the output are grounded or both
are kept floating.
4) Single fault testing is performed on
the end system to ensure that under
a single fault, hazardous voltages
do not appear at the module output.
Warranty:
TDK Innoveta’s comprehensive line of
power solutions includes efficient, high-
density DC-DC converters. TDK Innoveta
offers a three-year limited warranty.
Complete warranty information is listed on
our web site or is available upon request
from TDK Innoveta.