GE Industrial Solutions NQR010A0X4 - Manual (Page 14)

Data Sheet
March 7, 2012 NQR010A0X4: Non-Isolated DC-DC Power Modules
4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 10A output current
LINEAGE POWER 14
performance of the module can be achieved by using
the Tunable Loop
TM feature described later in this data
sheet.
0
10
20
30
40
50
60
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
Output Voltage (Volts)
R
ippl
e (
m
V
p
-p
)
1x10uF External Cap
1x47uF External Cap
2x47uF External Cap
4x47uF External Cap
Figure 47. Output ripple voltage for various output
voltages with external 1x10 µF, 1x47 µF, 2x47 µF or
4x47 µF ceramic capacitors at the output (10A load).
Input voltage is 12V.
Safety Considerations
For safety agency approval the power module must be
installed in compliance with the spacing and separation
requirements of the end-use safety agency standards,
i.e., UL 60950-1 2nd Edition, CSA C22.2 No. 60950-1-
07, and VDE 0805-1+A11:2009-11 (DIN EN60950-1
2nd Edition) Licensed.
For the converter output to be considered meeting the
requirements of safety extra-low voltage (SELV), the
input must meet SELV requirements. The power module
has extra-low voltage (ELV) outputs when all inputs are
ELV.
A 15A quick acting input fuse for the module is
required.
Feature Descriptions
Remote On/Off
The NQR010A0X4 10A power modules feature an
On/Off pin with positive logic for remote On/Off
operation. If the On/Off pin is not being used, leave the
pin open (the module will be ON). The On/Off signal
(V
On/Off
) is referenced to ground. During a Logic High on
the On/Off pin, the module remains ON. During Logic-
Low, the module is turned OFF.
ON/OFF
VIN
GND
MODULE
ENABLE
R1
100K
2.2K
47K
2.2K
47K
10K 30.1K
Figure 48. Remote On/Off Implementation.
Overcurrent Protection
To provide protection in a fault (output overload)
condition, the unit is equipped with internal
current-limiting circuitry and can endure current limiting
continuously. At the point of current-limit inception, the
unit enters hiccup mode. The unit operates normally
once the output current is brought back into its specified
range. The average output current during hiccup is 10%
I
O, max
.
Overtemperature Protection
To provide protection in a fault condition, these modules
are equipped with a thermal shutdown circuit. The unit
will shut down if the overtemperature threshold of 130ºC
is exceeded at the thermal reference point T
ref
. The
thermal shutdown is not intended as a guarantee that
the unit will survive temperatures beyond its rating.
Once the unit goes into thermal shutdown it will then
wait to cool before attempting to restart.
Input Undervoltage Lockout
At input voltages below the input undervoltage lockout
limit, the module operation is disabled. The module will
begin to operate at an input voltage above the
undervoltage lockout turn-on threshold.