TDK Powereta iQP 5V/50A - Manual (Page 14)

Data Sheet: Powereta
TM
iQP Series –Single Output Quarter Brick
©2005-2006 TDK Innoveta Inc.
iQP 5V/50A Datasheet 8/3/2006 ℡ (877) 498-0099
14/15
nominal input, full load, and Ta = 40˚C using
the Telcordia TR-332 issue 6 calculation
method.
Improper handling or cleaning processes
can adversely affect the appearance,
testability, and reliability of the power
modules. Contact TDK 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.
Input/Output Ripple and Noise Measurements:
The input reflected ripple is measured with a current probe and oscilloscope. The ripple current is the current through a
12
µH differential mode inductor, Lin, with esr ≤ 10 mΩ, feeding a capacitor, C1, esr ≤ 700 mΩ @ 100kHz, across the
module input voltage pins. The capacitor C1 across the input shall be at least one 220 µF/100V electrolytic capacitor along
with two 1uF to 2.2uF/100V ceramic capacitors. Two 220 µF/100V electrolytic capacitors and two 2.2uF/100V ceramic
capacitors are recommended. A 220 µF/100V capacitor for C0 is also recommended.
The output ripple measurement is made approximately 7 cm (2.75 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.
+
C0
C1
Vout
+
- -
Lin
Vs
Vin
Cext
R Load
Ground Plane
+
C0
C1
Vout
+
- -
Lin
Vs Vs
Vin
Cext
R Load R Load
Ground Plane