Data Sheet
Naos Raptor 10A: Non-Isolated DC-DC Power Modules
August 14, 2009
4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 10A output current
performance of the module can be achieved by using
the Tunable LoopTM feature described later in this data
sheet.
Feature Descriptions
Enable (Remote On/Off)
200
The Naos Raptor 10A power modules feature a Enable
pin with positive logic for remote On/Off operation. If the
Enable 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 Enable signal (VEnable) is
referenced to ground. During a Logic High on the
Enable pin, the module remains ON. During Logic-Low,
the module is turned OFF.
1x10uF External Cap
1x47uF External Cap
2x47uF External Cap
4x47uF External Cap
180
160
140
120
100
80
60
40
20
MODULE
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
VIN
Output Voltage(Volts)
10K
30.1K
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.
R1
100K
ENABLE
2.2K
2.2K
ON/OFF
Safety Considerations
47K
47K
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.
GND
Figure 48. Remote On/Off Implementation. Resistor
R1 is absent in the -49Z and -51Z option modules.
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.
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%
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
IO, 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 Tref. 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.
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
Output Voltage (VDC)
Input Undervoltage Lockout
0.59 to 1.3 1.31 to 2.7 2.71 to 5.0 5.1 to 6
(VDC)
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.
10.1 to 14
6.51 to 10
4.5 to 6.5
5A
6.3A
10A
10A
15A
20A
15A
25A
30A
20A
30A
NA
LINEAGE POWER
14
LINEAGEPOWER [ LINEAGE POWER CORPORATION ]
