Data Sheet
December 6, 2010
Naos Raptor 10A: 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
20
40
60
80
100
120
140
160
180
200
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
Output Voltage(Volts)
Ripple(mVp-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, CSA C22.2 No. 60950-1-03, and VDE
0850:2001-12 (EN60950-1) 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.
An input fuse for the module is recommended. Due to
the wide input voltage and output voltage ranges of the
module, different fuse ratings are recommended as
shown in Table 1. These are suggested “maximum”
fuse ratings. However, for optimum circuit protection,
the fuse value should not be any larger than required in
the end application. As an option to using a fuse, no
fuse is required, if the module is
1. powered by a power source with current limit
protection set point less than the protection
device value listed in Table 1, and
2. the module is evaluated in the end-use
equipment.
Table 1.
Input
Voltage
(VDC)
Output Voltage (VDC)
0.59 to 1.3 1.31 to 2.7 2.71 to 5.0 5.1 to 6
10.1 to 14
5A 10A 15A 20A
6.51 to 10
6.3A 15A 25A 30A
4.5 to 6.5
10A 20A 30A NA
Feature Descriptions
Remote On/Off
The Naos Raptor 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, except for the -49Z and -51Z option
modules where leaving the pin open will cause the
module to remain OFF). 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. Resistor
R1 is absent in the -49Z and -51Z option modules.
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.
