Data Sheet
July 11, 2011
Naos Raptor 40A Non-Isolated Power Modules
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A Output Current
* UL is a registered trademark of Underwriters Laboratories, Inc.
† CSA is a registered trademark of Canadian Standards Association.
‡ VDE is a trademark of Verband Deutscher Elektrotechniker e.V.
** ISO is a registered trademark of the International Organization of Standards
Document No: DS06-128 ver. 1.15
PDF name: NSR040A0X_ds.pdf
Features
Compliant to RoHS EU Directive 2002/95/EC (Z
versions)
Compatible in a Pb-free or SnPb wave-soldering
environment (Z versions)
Wide input voltage range (5Vdc-13.8Vdc)
Output voltage programmable from 0.6Vdc to
5.0Vdc via external resistor
Tunable LoopTM to optimize dynamic output voltage
response
Fixed switching frequency
Output overcurrent protection (non-latching)
Over temperature protection
Remote On/Off
Remote Sense
Power Good Signal
Over voltage protection – Hiccup Mode
Small size:
36.8 mm x 27.9 mm x 10.7 mm
(1.45 in. x 1.10 in. x 0.42 in)
Wide operating temperature range (0°C to 70°C)
UL* 60950 Recognized, CSA† C22.2 No. 60950-00
Certified, and VDE‡ 0805 (EN60950-1 3rd edition)
Licensed
ISO** 9001 and ISO 14001 certified manufacturing
facilitiesISO** 9001 and ISO 14001 certified
manufacturing facilities
Applications
Distributed power architectures
Intermediate bus voltage applications
Telecommunications equipment
Servers and storage applications
Networking equipment
Description
The Naos Raptor 40A SIP power modules are non-isolated dc-dc converters in an industry standard package that
can deliver up to 40A of output current with a full load efficiency of 92% at 3.3Vdc output voltage (VIN = 12Vdc).
These modules operate over a wide range of input voltage (VIN = 5Vdc-13.8Vdc) and provide a precisely regulated
output voltage from 0.6dc to 5.0Vdc, programmable via an external resistor. Features include remote On/Off,
adjustable output voltage, over current and over temperature protection. A new feature, the Tunable LoopTM, allows
the user to optimize the dynamic response of the converter to match the load.
RoHS Compliant
Data Sheet
July 11, 2011
Naos Raptor 40A Non Isolated Power Module:
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
LINEAGE POWER 2
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are
absolute stress ratings only, functional operation of the device is not implied at these or any other conditions in
excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for
extended periods can adversely affect the device reliability.
Parameter Device Symbol Min Max Unit
Input Voltage
Continuous All VIN -0.3 15 Vdc
Operating Ambient Temperature All TA 0 70 °C
(see Thermal Considerations section)
Storage Temperature All Tstg -55 125 °C
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions.
Parameter Device Symbol Min Typ Max Unit
Operating Input Voltage All VIN 5 13.8 Vdc
Maximum Input Current All IIN,max 30 Adc
(VIN= VIN, min to VIN, max, IO=IO, max VO,set = 3.3Vdc)
Input No Load Current VO,set = 0.6 Vdc IIN,No load 165 mA
(VIN = 12Vdc, IO = 0, module ON) VO,set = 5.0Vdc IIN,No load 360 mA
Input Stand-by Current All IIN,stand-by 23 mA
(VIN = 12Vdc, module disabled)
Inrush Transient All I2t 1 A2s
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 1μH source impedance; VIN, min to
VIN, max, IO= IOmax ; See Test configuration section)
All 130 mAp-p
Input Ripple Rejection (120Hz) All 50 dB
CAUTION: This power module is not internally fused. An input line fuse must always be used.
This power module can be used in a wide variety of applications, ranging from simple standalone operation to being
part of a complex power architecture. To preserve maximum flexibility, internal fusing is not included, however, to
achieve maximum safety and system protection, always use an input line fuse. The safety agencies require a fast-
acting fuse with a maximum rating of 30A (see Safety Considerations section). Based on the information provided in
this data sheet on inrush energy and maximum dc input current, the same type of fuse with a lower rating can be
used. Refer to the fuse manufacturer’s data sheet for further information.
Data Sheet
July 11, 2011
Naos Raptor 40A Non Isolated Power Module:
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
LINEAGE POWER 3
Electrical Specifications (continued)
Parameter Device Symbol Min Typ Max Unit
Output Voltage Set-point
(VIN=IN, min, IO=IO, max, TA=25°C) Vo, SET ≥ 1.2Vdc All VO, set –0.8 ⎯ +0.8 % VO, set
Vo, SET < 1.2Vdc All VO, set –10 ⎯ +10 mV
Output Voltage All VO, set –1.1% ⎯ +1.1% % VO, set
(Over all operating input voltage, resistive load,
and temperature conditions until end of life)
Adjustment Range All VO 0.6 5.0 Vdc
Selected by an external resistor
Output Regulation (for VO ≥ 2.5V)
Input range1 (5V – 9V); range2 (9V – 13.8V)
Line (Range1, range2) All ⎯ 0.3 % VO, set
Load (IO=IO, min to IO, max) All ⎯ 0.6 % VO, set
Line & Load All ⎯ 0.8 % VO, set
Output Regulation (for VO < 2.5V)
Input range1 (5V – 9V); range2 (9V – 13.8V)
Line (Range1, range2) All ⎯ 9 mV
Load (IO=IO, min to IO, max) All ⎯ 12 mV
Line & Load All ⎯ 15 mV
Output Ripple and Noise on nominal output
(VIN=VIN, nom and IO=IO, min to IO, max, Cout = 0μF)
Peak-to-Peak (5Hz to 20MHz bandwidth) Vo = 0.6V ⎯ 30 mVpk-pk
Peak-to-Peak (5Hz to 20MHz bandwidth) Vo = 1V ⎯ 30 mVpk-pk
Peak-to-Peak (5Hz to 20MHz bandwidth) Vo = 1.5V ⎯ 40 mVpk-pk
Peak-to-Peak (5Hz to 20MHz bandwidth) Vo = 2.5V ⎯ 40 mVpk-pk
Peak-to-Peak (5Hz to 20MHz bandwidth) Vo = 3.3V ⎯ 60 mVpk-pk
Peak-to-Peak (5Hz to 20MHz bandwidth) Vo = 5.0V ⎯ 60 mVpk-pk
External Capacitance1`
Without the Tunable LoopTM
ESR ≥ 1 mΩ All CO, max ⎯ 1000 μF
With the Tunable LoopTM
ESR ≥ 0.15 mΩ All CO, max ⎯ 1500 μF
ESR ≥ 10 mΩ All CO, max ⎯ 10000 μF
Output Current All Io 0 ⎯ 40 Adc
Output Current Limit Inception (Hiccup Mode ) All IO, lim 103 130 180 % Io
Output Short-Circuit Current All IO, s/c ⎯ 5.7 ⎯ Arms
(VO≤250mV) ( Hiccup Mode )
Efficiency VO,set = 0.6Vdc η 70.9 %
VIN= VIN, nom, TA=25°C VO,set = 1.2Vdc η 82.3 %
IO=IO, max , VO= VO,set V
O,set = 1.8Vdc η 86.8 %
V
O,set = 2.5Vdc η 89.5 %
V
O,set = 3.3Vdc η 91.4 %
V
O,set = 5.0Vdc η 93.7 %
Switching Frequency All fsw ⎯ 500 ⎯ kHz
1 External capacitors may require using the new Tunable LoopTM feature to ensure that the module is stable as well as
getting the best transient response. See the Tunable LoopTM section for details.
Data Sheet
July 11, 2011
Naos Raptor 40A Non Isolated Power Module:
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
LINEAGE POWER 4
General Specifications
Parameter Min Typ Max Unit
Calculated MTBF (VIN=12V, VO=5Vdc, IO=0.8IO, max, TA=40°C) Per
Telcordia Issue 2 Method 1 Case 3 4,107,921 Hours
Weight ⎯ 17.5 (0.617) ⎯ g (oz.)
Feature Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions. See Feature Descriptions for additional information.
Parameter Device Symbol Min Typ Max Unit
On/Off Signal Interface
(VIN=VIN, min to VIN, max ; open collector or equivalent,
Signal referenced to GND)
Logic High (On/Off pin open – Module ON)
Input High Current All IIH 0.5 ⎯ 3.3 mA
Input High Voltage All VIH 1.0 ⎯ 5.5 V
Logic Low (Module OFF)
Input Low Current All IIL ⎯ ⎯ 200 µA
Input Low Voltage All VIL -0.3 ⎯ 0.4 V
PwGood (Power Good) Signal Interface Open
Collector/Drain
PwGood = High = Power Good
PwGood = Low = Power Not Good
Logic level low voltage 0 0.4 V
Logic level high voltage 2.4 5.25 V
Sink Current, PwGood = low 4 mA
Turn-On Delay and Rise Times
(VIN=VIN, nom, IO=IO, max , VO to within ±1% of steady state)
Case 1: On/Off input is enabled and then
input power is applied (delay from instant at
which VIN = VIN, min until Vo = 10% of Vo, set)
All Tdelay 3 msec
Case 2: Input power is applied for at least one second
and then the On/Off input is enabled (delay from instant
at which On/Off is enabled until Vo = 10% of Vo, set)
All Tdelay 1.2 msec
Output voltage Rise time (time for Vo to rise from
10% of Vo, set to 90% of Vo, set) All Trise 3 msec
Output voltage overshoot
IO = IO, max; VIN, min – VIN, max, TA = 25 oC 0.5 % VO, set
Remote Sense Range All ⎯ ⎯ 0.5 V
Over Temperature Protection All Tref 127 ºC
(See Thermal Considerations section)
Input Undervoltage Lockout
Turn-on Threshold All 4.4 4.8 Vdc
Turn-off Threshold All 4.2 Vdc
Overvoltage Protection (Hiccup Mode) All 120 125 130 VO, set, %
Data Sheet
July 11, 2011
Naos Raptor 40A Non Isolated Power Module:
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
LINEAGE POWER 5
Characteristic Curves
The following figures provide typical characteristics for the Naos Raptor 40A modules at 0.6Vout and 25ºC.
EFFICIENCY, η (%)
60
65
70
75
80
85
010203040
Vin = 5V
Vin = 12V Vin = 14V
OUTPUT CURRENT, Io (A)
10
15
20
25
30
35
40
45
25 30 35 40 45 50 55 60 65 70
NC
0.5m/s
(100LFM)
1m/s
(200LFM)
1.5m/s
(300LFM)
2m/s
(400LFM)
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 1. Converter Efficiency versus Output Current. Figure 2. Derating Output Current versus Ambient
Temperature and Airflow.
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT
CURRENT
,
OUTPU
T
VOLTAGE
IO (A) (10Adiv) VO (V) (200mV/div)
TIME, t (1μs/div) TIME, t (40μs /div)
Figure 3. Typical output ripple and noise (VIN = 12V, Io =
Io,max).
Figure 4. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with VIN=12V.
OUTPUT VOLTAGE ON/OFF VOLTAGE
VO (V) (200mV/div) VON/OFF (V) (2V/div)
OUTPUT VOLTAGE INPUT VOLTAGE
VO (V) (200mV/div) VIN (V) (5V/div)
TIME, t (1ms/div) TIME, t (1ms/div)
Figure 5. Typical Start-up Using On/Off Voltage (Io =
Io,max).
Figure 6. Typical Start-up Using Input Voltage (VIN =
9V, Io = Io,max).
Data Sheet
July 11, 2011
Naos Raptor 40A Non Isolated Power Module:
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
LINEAGE POWER 6
Characteristic Curves (continued)
The following figures provide typical characteristics for the Naos Raptor 40A modules at 1.2Vout and 25ºC.
EFFICIENCY, η (%)
65
70
75
80
85
90
95
0 10203040
Vin = 5V
Vin = 12V Vin = 14V
OUTPUT CURRENT, Io (A)
10
15
20
25
30
35
40
45
25 30 35 40 45 50 55 60 65 70
NC
0.5m/s
(100LFM)
1m/s
(200LFM)
1.5m/s
(300LFM)
2m/s
(400LFM)
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 7. Converter Efficiency versus Output Current. Figure 8. Derating Output Current versus Ambient
Temperature and Airflow.
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT
CURRENT
,
OUTPUT
VOLTAGE
IO (A) (10Adiv) VO (V) (200mV/div)
TIME, t (1μs/div) TIME, t (40μs /div)
Figure 9. Typical output ripple and noise (VIN = 12V, Io =
Io,max).
Figure 10. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with VIN=12V.
OUTPUT VOLTAGE ON/OFF VOLTAGE
VO (V) (500mV/div) VON/OFF (V) (2V/div)
OUTPUT VOLTAGE INPUT VOLTAGE
VO (V) (500mV/div) VIN (V) (5V/div)
TIME, t (1ms/div) TIME, t (1ms/div)
Figure 11. Typical Start-up Using On/Off Voltage (Io =
Io,max).
Figure 12. Typical Start-up Using Input Voltage (VIN =
12V, Io = Io,max).
Data Sheet
July 11, 2011
Naos Raptor 40A Non Isolated Power Module:
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
LINEAGE POWER 7
Characteristic Curves (continued)
The following figures provide typical characteristics for the Naos Raptor 40A modules at 1.8Vout and at 25ºC.
EFFICIENCY, η (%)
70
75
80
85
90
95
0 10203040
Vin = 5V
Vin = 12V
Vin = 14V
OUTPUT CURRENT, Io (A)
10
15
20
25
30
35
40
45
25 30 35 40 45 50 55 60 65 70
`
NC
0.5m/s
(100LFM)
1m/s
(200LFM)
1.5m/s
(300LFM)
2m/s
(400LFM)
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 13. Converter Efficiency versus Output Current. Figure 14. Derating Output Current versus Ambient
Temperature and Airflow.
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT
CURRENT
,
OUTPUT
VOLTAGE
IO (A) (10Adiv) VO (V) (200mV/div)
TIME, t (1μs/div) TIME, t (40μs /div)
Figure 15. Typical output ripple and noise (VIN = 12V, Io
= Io,max).
Figure 16. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with VIN=12V.
OUTPUT VOLTAGE ON/OFF VOLTAGE
VO (V) (1V/div) VON/OFF (V) (2V/div)
OUTPUT VOLTAGE INPUT VOLTAGE
VO (V) (1V/div) VIN (V) (5V/div)
TIME, t (1ms/div) TIME, t (1ms/div)
Figure 17. Typical Start-up Using On/Off Voltage (Io =
Io,max).
Figure 18. Typical Start-up Using Input Voltage (VIN =
12V, Io = Io,max).
Data Sheet
July 11, 2011
Naos Raptor 40A Non Isolated Power Module:
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
LINEAGE POWER 8
Characteristic Curves (continued)
The following figures provide thermal derating curves for Naos Raptor 40A modules at 2.5Vout and 25ºC.
EFFICIENCY, η (%)
70
75
80
85
90
95
100
0 10203040
Vin = 5V
Vin = 12V
Vin = 14V
OUTPUT CURRENT, Io (A)
10
15
20
25
30
35
40
45
25 30 35 40 45 50 55 60 65 70
NC
0.5m/s
(100LFM)
1m/s
(200LFM)
1.5m/s
(300LFM)
2m/s
(400LFM)
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 19. Converter Efficiency versus Output Current. Figure 20. Derating Output Current versus Ambient
Temperature and Airflow.
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT
CURRENT
,
OUTPUT
VOLTAGE
IO (A) (10Adiv) VO (V) (200mV/div)
TIME, t (1μs/div) TIME, t (40μs /div)
Figure 21. Typical output ripple and noise (VIN = 12V, Io
= Io,max).
Figure 22. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with VIN=12V.
OUTPUT VOLTAGE ON/OFF VOLTAGE
VO (V) (1V/div) VON/OFF (V) (2V/div)
OUTPUT VOLTAGE INPUT VOLTAGE
VO (V) (1V/div) VIN (V) (5V/div)
TIME, t (1ms/div) TIME, t (1ms/div)
Figure 23. Typical Start-up Using On/Off Voltage (Io =
Io,max).
Figure 24. Typical Start-up Using Input Voltage (VIN =
12V, Io = Io,max).
Data Sheet
July 11, 2011
Naos Raptor 40A Non Isolated Power Module:
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
LINEAGE POWER 9
Characteristic Curves (continued)
The following figures provide thermal derating curves for Naos Raptor 40A modules at 3.3Vout and 25ºC.
EFFICIENCY, η (%)
70
75
80
85
90
95
100
010203040
Vin = 7V Vin = 12V
Vin = 14V
OUTPUT CURRENT, Io (A)
10
15
20
25
30
35
40
45
25 30 35 40 45 50 55 60 65 70
NC
0.5m/s
(100LFM)
1m/s
(200LFM)
1.5m/s
(300LFM)
2m/s
(400LFM)
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 25. Converter Efficiency versus Output Current. Figure 26. Derating Output Current versus Ambient
Temperature and Airflow.
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT
CURRENT
,
OUTPUT
VOLTAGE
IO (A) (10Adiv) VO (V) (200mV/div)
TIME, t (1μs/div) TIME, t (40μs /div)
Figure 27. Typical output ripple and noise (VIN = 12V, Io
= Io,max).
Figure 28. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with VIN=12V.
OUTPUT VOLTAGE ON/OFF VOLTAGE
VO (V) (1V/div) VON/OFF (V) (2V/div)
OUTPUT VOLTAGE INPUT VOLTAGE
VO (V) (1V/div) VIN (V) (5V/div)
TIME, t (1ms/div) TIME, t (1ms/div)
Figure 29. Typical Start-up Using On/Off Voltage (Io =
Io,max).
Figure 30. Typical Start-up Using Input Voltage (VIN =
12V, Io = Io,max).
Data Sheet
July 11, 2011
Naos Raptor 40A Non Isolated Power Module:
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
LINEAGE POWER 10
Characteristic Curves (continued)
The following figures provide thermal derating curves for Naos Raptor 40A modules at 5Vout and 25ºC.
EFFICIENCY, η (%)
70
75
80
85
90
95
100
010203040
Vin = 9V Vin = 12V
Vin = 14V
OUTPUT CURRENT, Io (A)
10
15
20
25
30
35
40
45
25 30 35 40 45 50 55 60 65 70
NC
0.5m/s
(100LFM)
1m/s
(200LFM)
1.5m/s
(300LFM)
2m/s
(400LFM)
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 31. Converter Efficiency versus Output Current. Figure 32. Derating Output Current versus Ambient
Temperature and Airflow.
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT
CURRENT
,
OUTPUT
VOLTAGE
IO (A) (10Adiv) VO (V) (200mV/div)
TIME, t (1μs/div) TIME, t (40μs /div)
Figure 33. Typical output ripple and noise (VIN = 12V, Io
= Io,max).
Figure 34. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with VIN=12V.
OUTPUT VOLTAGE ON/OFF VOLTAGE
VO (V) (2V/div) VON/OFF (V) (2V/div)
OUTPUT VOLTAGE INPUT VOLTAGE
VO (V) (2V/div) VIN (V) (5V/div)
TIME, t (1ms/div) TIME, t (1ms/div)
Figure 35. Typical Start-up Using On/Off Voltage (Io =
Io,max).
Figure 36. Typical Start-up Using Input Voltage (VIN =
12V, Io = Io,max).
Data Sheet
July 11, 2011
Naos Raptor 40A Non Isolated Power Module:
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
LINEAGE POWER 11
Test Configurations
TO OSCILLOSCOPE CURRENT PROBE
LTEST
1μH
BATTERY
CS 1000μF
Electrolytic
E.S.R.<0.1Ω
@ 20°C 100kHz
2x100μF
Tantalum
VIN(+)
COM
NOTE: Measure input reflected ripple current with a simulated
source inductance (LTEST) of 1μH. Capacitor CS offsets
possible battery impedance. Measure current as shown
above.
CIN
Figure 37. Input Reflected Ripple Current Test
Setup.
NOTE: All voltage measurements to be taken at the module
terminals, as shown above. If sockets are used then
Kelvin connections are required at the module terminals
to avoid measurement errors due to socket contact
resistance.
V
O
(+)
COM
1uF .
RESISTIVE
LOAD
SCOPE
COPPER STRIP
GROUND PLANE
10uF
Figure 38. Output Ripple and Noise Test Setup.
VO
COM
VIN(+)
COM
RLOAD
Rcontac t Rdistribution
Rcontac t Rdistribution
Rcontact
Rcontact
Rdistribution
Rdistribution
VIN VO
NOTE: All voltage measurements to be taken at the module
terminals, as shown above. If sockets are used then
Kelvin connections are required at the module terminals
to avoid measurement errors due to socket contact
resistance.
Figure 39. Output Voltage and Efficiency Test
Setup.
η =
VO. IO
VIN. IIN
x 100 %
Efficiency
Design Considerations
Input Filtering
The Naos Raptor 40A module should be connected
to a low-impedance source. A highly inductive
source can affect the stability of the module. An
input capacitance must be placed directly adjacent
to the input pin of the module, to minimize input
ripple voltage and ensure module stability.
To minimize input voltage ripple, low-ESR ceramic
capacitors are recommended at the input of the
module. Figure 40 shows the input ripple voltage for
various output voltages at 40A of load current with
1x22 µF or 2x22 µF ceramic capacitors and an input
of 12V.
Input Ripple Voltage (mVp-p)
0
50
100
150
200
250
300
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
1x22uF
2x22uF
Output Voltage (Vdc)
Figure 40. Input ripple voltage for various output
voltages with 1x22 µF or 2x22 µF ceramic
capacitors at the input (40A load). Input voltage is
12V.
Output Filtering
The Naos Raptor 40A modules are designed for low
output ripple voltage and will meet the maximum
output ripple specification with no external capacitors.
However, additional output filtering may be required
by the system designer for a number of reasons.
First, there may be a need to further reduce the
output ripple and noise of the module. Second, the
dynamic response characteristics may need to be
customized to a particular load step change.
To reduce the output ripple and improve the dynamic
response to a step load change, additional
capacitance at the output can be used. Low ESR
ceramic and polymer are recommended to improve
the dynamic response of the module. For stable
operation of the module, limit the capacitance to less
than the maximum output capacitance as specified in
the electrical specification table. Optimal
performance of the module can be achieved by using
the Tunable LoopTM feature described later in this
data sheet.
Data Sheet
July 11, 2011
Naos Raptor 40A Non Isolated Power Module:
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
LINEAGE POWER 12
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.
The input to these units is to be provided with a fast-
acting fuse with a maximum rating of 30A in the
positive input lead.
Feature Descriptions
Remote On/Off
The Naos Raptor 40A power modules feature a
remote On/Off capability with positive logic. If not
using the On/Off pin, leave the pin open (the module
will be ON. The On/Off signal (VOn/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.
100K
GND
ENABLE
ON/OFF
5V
MOD UL E
2K
47K
2.2K
47K
2K
2.2K
Figure 41. 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 typical average
output current during hiccup is 10% of Io,max.
Over Temperature Protection
To provide protection in a fault condition, the unit is
equipped with a thermal shutdown circuit. The unit will
shut down if the overtemperature threshold of 127ºC
is exceeded at the thermal reference point Tred. 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, module operation is disabled. The module will
begin to operate at an input voltage above the
undervoltage lockout turn-on threshold.
Data Sheet
July 11, 2011
Naos Raptor 40A Non Isolated Power Module:
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
LINEAGE POWER 13
Power Good
The Naos Raptor 40A power modules provide a
Power Good Status signal that indicates whether or
not the power module is functioning properly.
PwGood is a power good signal implemented with an
open-collector output to indicate that the output
voltage is within the regulation limits of the power
module. The PwGood signal will be de-asserted to a
low state If any condition such as over-current, or
over-voltage occurs which would result in the output
voltage going out of range.
Output Voltage Programming
The output voltage of the Naos Raptor 40A module
can be programmed to any voltage from 0.6Vdc to
5.0Vdc by connecting a resistor between the Trim +
and Trim - pins of the module. Certain restrictions
apply on the output voltage set point depending on
the input voltage. These are shown in the Output
Voltage vs. Input Voltage Set Point Area plot in Fig.
43. The Lower Limit curve shows that for output
voltages of 2.75V and higher, the input needs to be
larger than the minimum of 4.5V.
V
O
(+)
TRIM+
GND
R
trim
LOAD
V
IN
(+)
ON/OFF
Vout
TRIM−
Figure 42. Circuit configuration for programming
output voltage using an external resistor.
0
2
4
6
8
10
12
14
16
0.511.522.533.544.55
Output Voltage (V)
Input Voltage (v)
Fig. 43. Output Voltage vs. Input Voltage Set Point
Area plot showing limits where the output voltage
can be set for different input voltages.
Without an external resistor between Trim + and Trim
- pins, the output of the module will be 0.6Vdc. To
calculate the value of the trim resistor, Rtrim for a
desired output voltage, use the following equation:
Ω
−
=k
Vo
Rtrim
)6.0(
2.1
Rtrim is the external resistor in kΩ
Vo is the desired output voltage
Table 1 provides Rtrim values required for some
common output voltages.
By using a ±0.1% tolerance trim resistor with a TC of
±25ppm, a set point tolerance of ±0.8% can be
achieved as specified in the electrical specification.
The POL Programming Tool available at
www.lineagepower.com under the Design Tools
section, helps determine the required trim resistor
needed for a specific output voltage.
Note: Vin ≥ 180% of Vout at the module output pin.
Table 1
VO, set (V) Rtrim (Ω)
0.6 Open
1.0 3000
1.2 2000
1.5 1333
1.8 1000
2.5 632
3.3 444
5.0 273
Monotonic Start-up and Shutdown
The Naos Raptor 40A modules have monotonic start-
up and shutdown behavior for any combination of
rated input voltage, output current and operating
temperature range.
Data Sheet
July 11, 2011
Naos Raptor 40A Non Isolated Power Module:
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
LINEAGE POWER 14
Feature Descriptions (continued)
Tunable LoopTM
The Naos Raptor 40A modules have a new feature
that optimizes transient response of the module called
Tunable LoopTM. External capacitors are usually
added to improve output voltage transient response
due to load current changes. Sensitive loads may
also require additional output capacitance to reduce
output ripple and noise. Adding external capacitance
however affects the voltage control loop of the
module, typically causing the loop to slow down with
sluggish response. Larger values of external
capacitance could also cause the module to become
unstable.
To use the additional external capacitors in an optimal
manner, the Tunable LoopTM feature allows the loop
to be tuned externally by connecting a series R-C
between the SENSE and TRIM pins of the module, as
shown in Fig. 44. This R-C allows the user to
externally adjust the voltage loop feedback
compensation of the module to match the filter
network connected to the output of the module.
Recommended values of RTUNE and CTUNE are given
in Tables 2 and 3. Table 2 lists recommended values
of RTUNE and CTUNE in order to meet 2% output
voltage deviation limits for some common output
voltages in the presence of a 20A to 40A step change
(50% of full load), with an input voltage of 12V. Table
3 shows the recommended values of RTUNE and CTUNE
for different values of ceramic output capacitors up to
1500uF, again for an input voltage of 12V. The value
of RTUNE should never be lower than the values shown
in Tables 2 and 3. Please contact your Lineage Power
technical representative to obtain more details of this
feature as well as for guidelines on how to select the
right value of external R-C to tune the module for best
transient performance and stable operation for other
output capacitance values.
SENSE+
MODULE
TRIM+
VOUT
RTune
TRIM-
CTune
RTrim
Figure. 44. Circuit diagram showing connection of
RTUME and CTUNE to tune the control loop of the
module.
Table 2. Recommended values of RTUNE and CTUNE
to obtain transient deviation of 2% of Vout for a
20A step load with Vin=12V.
Vout 5V 3.3V 2.5V 1.8V 1.2V 0.69V
Cext
6x47μF
+
330μF
Polymer
2x47μF
+
3x330μF
Polymer
4x47μF
+
4x330μF
Polymer
3x47μF
+
6x330μF
Polymer
2x47μF
+
10x330μF
Polymer
2x47μF
+
22x330μF
Polymer
RTUNE 75 62 62 39 39 30
CTUNE 10nF 18nF 27nF 47nF 68nF 180nF
ΔV 100mV 64mV 50mV 36mV 24mV 12mV
Table 3. General recommended values of of RTUNE
and CTUNE for Vin=12V and various external
ceramic capacitor combinations.
Cext 2x47μF4x47μF10x47μF 20x47μF30x47μF
RTUNE 75 75 39 33 30
CTUNE 3300pF 4700pF 8.2nF 12nF 18nF
Data Sheet
July 11, 2011
Naos Raptor 40A Non Isolated Power Module:
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
LINEAGE POWER 15
Thermal Considerations
Power modules operate in a variety of thermal
environments; however sufficient cooling should
always be provided to help ensure reliable operation.
Considerations include ambient temperature, airflow,
module power dissipation, and the need for increased
reliability. A reduction in the operating temperature of
the module will result in an increase in reliability. The
thermal data presented here is based on physical
measurements taken in a wind tunnel. The test set-
up is shown in Figure 45. The derating data applies
to airflow in either direction of the module’s axis.
The thermal reference point, Tref used in the
specifications are shown in Figure 46. For reliable
operation this temperature should not exceed 122oC.
The output power of the module should not exceed
the rated power of the module (Vo,set x Io,max).
Please refer to the Application Note “Thermal
Characterization Process For Open-Frame Board-
Mounted Power Modules” for a detailed discussion of
thermal aspects including maximum device
temperatures.
Heat Transfer via Convection
Increased airflow over the module enhances the heat
transfer via convection. Thermal derating curves
showing the maximum output current that can be
delivered at different local ambient temperatures (TA)
for airflow conditions ranging from natural convection
and up to 2m/s (400 ft./min) are shown in the
Characteristics Curves section.
Figure 46. Temperature measurement location Tref.
Post solder Cleaning and Drying
Considerations
Post solder cleaning is usually the final circuit-board
assembly process prior to electrical board testing. The
result of inadequate cleaning and drying can affect
both the reliability of a power module and the
testability of the finished circuit-board assembly. For
guidance on appropriate soldering, cleaning and
drying procedures, refer to the Board Mounted Power
Modules: Soldering and Cleaning Application Note.
Through-Hole Lead-Free Soldering
Information
The RoHS-compliant through-hole products use the
SAC (Sn/Ag/Cu) Pb-free solder and RoHS-compliant
components. They are designed to be processed
through single or dual wave soldering machines. The
pins have an RoHS-compliant finish that is compatible
with both Pb and Pb-free wave soldering processes.
A maximum preheat rate of 3°C/s is suggested. The
wave preheat process should be such that the
temperature of the power module board is kept below
210°C. For Pb solder, the recommended pot
temperature is 260°C, while the Pb-free solder pot is
270°C max. Not all RoHS-compliant through-hole
products can be processed with paste-through-hole
Pb or Pb-free reflow process. If additional information
is needed, please consult with your Lineage Power
technical representative for more detail.
Air
Flow
Power Module
Wind Tunnel
PWBs
7.2
4
[0.285]
76.
2
[3.0]
Probe Location
for measuring
airflow and
ambient
tem
p
erature
50.
8
[2.00]
Figure 45. Thermal Test Set-up.
Data Sheet
July 11, 2011
Naos Raptor 40A Non Isolated Power Module:
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
LINEAGE POWER 16
Mechanical Outline
Dimensions are in inches and (millimeters).
Tolerances: x.xx in. ± 0.02 in. (x.x mm ± 0.5 mm) [unless otherwise indicated]
x.xxx in ± 0.010 in. (x.xx mm ± 0.25 mm)
Pin Function Pin Function
1 Vout 8 Trim +
2 Vout 9 PwGood
3 Vout 10 Sense -
4 GND 11 Sense +
5 GND 12 Vin
6 On/Off 13 Vin
7 Trim - 14 GND
15 GND
Pin Out
Front View
Side View
L = 3.3 ± 0.5mm
(
0.13 ±0.02 in.
)
Data Sheet
July 11, 2011
Naos Raptor 40A Non Isolated Power Module:
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
LINEAGE POWER 17
Recommended Pad Layout
Dimensions are in millimeters and (inches).
Tolerances: x.x mm ± 0.2 mm (x.xx in. ± 0.01 in.) [unless otherwise indicated]
x.xx mm ± 0.12 mm (x.xxx in ± 0.005 in.)
Data Sheet
July 11, 2011
Naos Raptor 40A Non Isolated Power Module:
5 – 13.8Vdc input; 0.6Vdc to 5.0Vdc Output; 40A output current
LINEAGE POWER 18
Document No: DS06-128 ver. 1.15
PDF name: NSR040A0X_ds.pdf
Ordering Information
Please contact your Lineage Power Sales Representative for pricing, availability and optional features.
Table 4. Device Codes
Device Code Input
Voltage Range
Output
Voltage
Output
Current
On/Off
Logic Connector Type Comcode
NSR040A0X43Z 5 – 13.8Vdc 0.6 – 5.0Vdc 40 A Positive SIP CC109130928
Table 5. Coding Scheme
Series
generation
Output
Current
Output
voltage
Pin Length On/Off
logic
Sense Default On/Off
Condition
ROHS
Compliance
NSR 040A0 X 4 3 Z
040A0=40A X =
programmable
output
Blank =
Standard
5=5.1mm
6=3.7mm
8=2.8mm
4 = positive
No entry =
negative
3 = Remote
Sense
Blank=without
Blank=Standard,
ON when
unconnected
2=Inverted On/Off
Z = ROHS6
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Lineage Power reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or
pplication. No rights under any patent accompany the sale of any such product(s) or information.
Lineage Power DC-DC products are protected under various patents. Information on these patents is available at www.lineagepower.com/patents.
©
2011 Lineage Power Corporation, (Plano, Texas) All International Rights Reserved.
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