TDK iQN series , iQN Series Single Output Quarter Brick , , Electrical Data:

Data Sheet: Supereta

iQN Series –Single Output Quarter Brick

©2005-2006 TDK Innoveta Inc.

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

℡

(877) 498

0099

5/15

Electrical Data:

iQN48006A350V-000 through -0A9: 35V, 6A Output

Characteristic Min Typ Max Unit Notes & Conditions

Output Open Circuit Voltage Set-point 34.65 35 35.35 Vdc Vin=Vin,min to Vin,max, Io=0A, Tc = 25˚C

Output Voltage Initial Set-point Tolerance 34.48 35 35.53 Vdc Over all rated input voltage and temperature

conditions with Io=0A to end of life

Efficiency --- 90 --- % Vin=Vin,nom; Io=Io,max; Tc = 25˚C

Line Regulation --- 50 100* mV Vin=Vin,min to Vin,max, Io and Tc fixed

Droop Rate --- 771 --- mV/A Vin=Vin,min to Vin,max, Tc = 25˚C

Temperature Regulation --- 125 300* mV Tc=Tc,min to Tc,max, Vin and Io fixed

Load Share Accuracy -10 --- +10 % 50% to 100% rated load current, Tc = 25˚C

Output Current 0 --- 6 A

At loads less than Io,min the module will

continue to regulate the output voltage, but

the output ripple may increase slightly

Output Current Limiting Threshold --- 6.5 --- A Vo = 0.9*Vo,nom, Tc<Tc,max

Short Circuit Current 0 0 --- A Latch off

--- 120 250 mVpp

Output Ripple and Noise Voltage

--- 10 30 mVrms

Vin=48V, Io≥Io,min, Tc=25˚C. Measured

across one 0.1uF, one 1.0 uF, one 47uF

ceramic, and a 68uF low esr aluminum

electrolytic capacitors located 2 inches

away – see input/output ripple

measurement figure; BW = 20MHz

Output Voltage Adjustment Range 17 --- 35** V Note: Trim up 10% is possible, but the load

current needs to be reduced

Output Voltage Remote Sense Range --- --- 10 %V o,nom

Dynamic Response:

Recovery Time to 10% of Peak Deviation

Transient Voltage

---

800

350

---

µS

di/dt = 0.1A/uS, Vin=Vin,nom; load step

from 50% to 75% of Io,max, Tc=25˚C with at

least one 1.0 uF, one 47uF ceramic, and a

68uF low esr aluminum electrolytic

capacitors across the output terminals.

Note: Exclude the droop.

Output Voltage Overshoot during Startup 0 0 --- mV Vin=Vin,nom; Io=Io,max,Tc=25˚C

Switching Frequency --- 155 --- kHz Fixed

Output Over Voltage Protection 38.9 39.7 41.1 V

External Load Capacitance 68 --- 5,000 † uF Minimum ESR > 2.5 mΩ. Tc=25˚C

Isolation Capacitance --- 1000 --- pF

Isolation Resistance 10 --- --- MΩ

Vref 2.5 V Required for trim calculation

* Engineering Estimate

** Trim up is possible, but the load current needs to be reduced. Contact TDK Innoveta for details

† Contact TDK Innoveta for applications that require additional capacitance or using capacitors with very low ESR