TDK Dualeta iQA Series - Manual (Page 18)

Advance Data Sheet: Dualeta™ iQA Series – Dual Quarter Brick
©2002-2005 TDK Innoveta Inc.
iQAFullDatasheet080505 2.doc 8/3/2006
℡ (877) 498-0099 18/19
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.
Reliability
The power modules are designed using TDK Innoveta’s stringent design guidelines for
component derating, product qualification, and design reviews. Early failures are screened out by
both burn-in and an automated final test.
Improper handling or cleaning processes can adversely affect the appearance, testability, and
reliability of the power modules. Contact Innoveta technical support for guidance regarding
proper handling, cleaning, and soldering of TDK Innoveta’s power modules.
Quality
TDK Innoveta’s product development process incorporates advanced quality planning tools such
as FMEA and Cpk analysis to ensure designs are robust and reliable. All products are
assembled at ISO certified assembly plants.
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.