TDK iQN series - page 14

Data Sheet: Supereta

iQN Series –Single Output Quarter Brick

iQN 35V/6A/-0A9 Datasheet Issue 1.2 4/8/2008

℡

(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

12µH 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 100µF/100V. A 470µF/100V capacitor is

recommended. A 470µF/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

Vin

Cext RLoad

Ground Plane

C0 C1

Vout

Lin

VsVs

Vin

Cext RLoadRLoad

Ground Plane