The Supereta™ iQN series offers an industry
standard quarter brick high current power
module with true useable output power.
iQN series power modules with the voltage
foldback constant current limit feature are
ideally suited for fan motor control and
wireless applications. Its 90% full load
efficiency (91% at 70% of full load) and
superior thermal performance make the iQN
series of power modules ideally suited for
tight space and power-hungry applications in
demanding thermal environments. This
rugged building block is designed to serve as
the core of your high reliability system. The
droop current sharing capability allows
multiple modules to be connected in parallel.
A wide output voltage trim down range, to
17V, and remote sensing are standard
features enhancing versatility.
Data Sheet: SuperetaTM iQN Series –Single Output Quarter Brick
Mechanical Specification:
Dimensions are in mm [in]. Unless otherwise specified tolerances are: x.x ± 0.5 [0.02], x.xx and x.xxx ± 0.25 [0.010].
1.02 [.040] DIA
6 pins
1.52 [.060] DIA
M3 X .5 threaded
inserts, 2 places
2 pins
1
2
3
3.40 [0.134] max Dia
2 places
Recommended hole pattern (top view)
8
7
6
5
4
Pin Assignment:
PIN FUNCTION PIN FUNCTION
1 Vin(+) 4 Vo(-)
2 On/Off 5 Sense(-)
3 Vin(-) 6 Trim
7 Sense(+)
8 Vo(+)
Pin base material is copper or brass with matte tin or tin/lead plating; the maximum module weight is 60g (2.1 oz).
Metal Board Flatness Tolerance: 0.002” per inch (Max).
Measured at the location specified in the thermal
measurement figure. Maximum temperature varies
with model number, output current, and module
orientation – see curve in thermal performance section
of the data sheet.
Input Characteristics:
Unless otherwise specified, specifications apply over all Rated Input Voltage, Resistive Load, and Temperature conditions.
Characteristic Min Typ Max Unit Notes & Conditions
Operating Input Voltage 36 48 75 Vdc
Turn-on Voltage --- 34.5 --- Vdc
Turn-off Voltage --- 32.3 --- Vdc
Hysteresis --- 2.2 --- Vdc
Startup Delay Time from application of input
voltage
Startup Delay Time from on/off --- 40 --- mS Vo = 0 to 0.1*Vo,nom; Vin = Vi,nom,
Output Voltage Rise Time --- 80 --- mS Io=Io,max,Tc=25˚C, Vo=0.1 to 0.9*Vo,nom
Output Current Limiting Threshold --- 6.5 --- A Vo = 0.9*Vo,nom, Tc<Tc,max
Short Circuit Current 0 0 --- A Latch off
Output Ripple and Noise Voltage
Over all rated input voltage and temperature
conditions with Io=0A to end of life
At loads less than Io,min the module will
continue to regulate the output voltage, but
the output ripple may increase slightly
--- 120 250
--- 10 30 mVrms
mVpp
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
Output Voltage Remote Sense Range --- --- 10 %Vo,nom
---
---
800
350
Dynamic Response:
Recovery Time to 10% of Peak Deviation
Transient Voltage
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 ---
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
---
---
5,000 †
µS
mV
uF
Note: Trim up 10% is possible, but the load
current needs to be reduced
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.