GE Industrial Solutions Naos Raptor 50A User Manual

Data Sheet
October 31, 2011

5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A Output Current

Naos Raptor 50A: Non-Isolated Power Modules

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-14Vdc)

 Output voltage programmable from 0.6Vdc to

2.0Vdc via external resistor

 Tunable Loop to optimize dynamic output voltage

response

 Fixed switching frequency

RoHS Compliant

Applications

 Distributed power architectures

 Intermediate bus voltage applications

 Telecommunications equipment

 Servers and storage applications

 Networking equipment

 Output overcurrent protection (non-latching)

 Over temperature protection

 Over voltage protection – Hiccup Mode

 Remote On/Off

 Power Good Signal

 Small size: 36.8 mm x 27.9 mm x 20.1 mm

(1.45 in. x 1.10 in. x 0.79 in)

 Wide operating temperature range (0°C to 70°C)

 UL* 60950 Recognized, CSA

Certified, and VDE
Licensed

‡

0805 (EN60950-1 3rd edition)

†

C22.2 No. 60950-00

 ISO** 9001 and ISO 14001 certified manufacturing

facilitiesISO** 9001 and ISO 14001 certified
manufacturing facilities

Description

The Naos Raptor 50 SIP power modules are non-isolated dc-dc converters in an industry standard package that can
deliver up to 50A of output current with a full load efficiency of 87% at 1.8Vdc output voltage (V
modules operate over a wide range of input voltage (V
voltage from 0.6dc to 2.0Vdc, programmable via an external resistor. Features include remote On/Off, adjustable
output voltage, over current, and over voltage protection. A new feature, the Tunable Loop, allows the user to
optimize the dynamic response of the converter to match the load.

= 5Vdc-14Vdc) and provide a precisely regulated output

IN

IN = 12Vdc). These

* UL is a re gistered trademark of Underwriters Laboratories, Inc.

†

CSA is a reg istered trademark of Canadian Standards Associat ion.

‡

VDE is a t rademark of Verband Deutscher Elektrotechniker e.V.

** ISO is a registered trademark of the International Orga nization of Standards

Document No: DS07-006 ver. 1.04

PDF name: NSR050A0X_ds.pdf

Data Sheet
October 31, 2011

5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A output current

Naos Raptor 50A: Non Isolated Power Module:

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 V

Operating Ambient Temperature All T

IN

A

-0.3 15 Vdc

0 70 °C

(see Thermal Considerations section)

Storage Temperature All T

stg

-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 12 14 Vdc

Maximum Input Current All I

(VIN= V

Input No Load Current V

(VIN = 12Vdc, IO = 0, module enabled) V

IN, min

to V

IN, max

, IO=I

O, max VO,set

= 2Vdc)

= 0.6 Vdc I

O,set

= 1.8Vdc I

O,set

Input Stand-by Current All I

IN,max

IN,No load

IN,No load

IN,stand-by

(VIN = 12Vdc, module disabled)

Inrush Transient All I2t 1 A2s

Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 1μH source impedance; V
V

= I

IN, max, IO

; See Test configuration section)

Omax

IN, min

to

All 172 mAp-p

Input Ripple Rejection (120Hz) All 48 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 fast­acting 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.

22.5 Adc

140 mA

200 mA

16 mA

LINEAGE POWER 2

Data Sheet
October 31, 2011

5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A output current

Naos Raptor 50A: Non Isolated Power Module:

Electrical Specifications (continued)

Parameter Device Symbol Min Typ Max Unit

Output Voltage Set-point (with 0.1% tolerance for
external resistor used to set output voltage)

Output Voltage All V

(Over all operating input voltage, resistive load, and
temperature conditions until end of life)

Adjustment Range All V

Selected by an external resistor

All V

O, set

O, set

O

-1.0 +1.0 % V

-2.0

⎯

+2.0 % V

0.6 2.0 Vdc

O, set

O, set

Output Regulation (for VO < 2.0V)

Line (VIN=V

Load (IO=I

IN, min

O, min

to V

to I

) All

IN, max

) All

O, max

⎯

⎯

9 mV

12 mV

Output Ripple and Noise on nominal output

(VIN=V

Peak-to-Peak (5Hz to 20MHz bandwidth) Vo = 0.6V

Peak-to-Peak (5Hz to 20MHz bandwidth) Vo = 1V

Peak-to-Peak (5Hz to 20MHz bandwidth) Vo = 1.5V

Peak-to-Peak (5Hz to 20MHz bandwidth) Vo = 1.8V

External Capacitance1

IN, nom

and IO=I

O, min

to I

Cout = 0μF)

O, max,

⎯

⎯

⎯

⎯

30 mV

30 mV

40 mV

40 mV

pk-pk

pk-pk

pk-pk

pk-pk

Without the Tunable Loop

(combination of 500μF ceramic and 3760μF polymer) All C

O, max

0

⎯

4260 μF

With the Tunable Loop

ESR ≥ 0.15 mΩ All C

ESR ≥ 10 mΩ All C

Output Current All I

Output Current Limit Inception (Hiccup Mode ) All I

Output Short-Circuit Current All I

(VO≤250mV) ( Hiccup Mode )

O, max

O, max

o

O, lim

O, s/c

0

0

0

⎯

⎯

⎯

4000 μF

10000 μF

50 Adc

146 % Io

⎯

5.54

⎯

Arms

Efficiency VO = 0.6Vdc η 72.5 %

VIN= V

IO=I

V

V

Switching Frequency All f

, TA=25°C VO = 1Vdc η 80.6 %

IN, nom

= V

O, max , VO

V

O,set

= 1.2Vdc η 83.1 %

O

= 1.5Vdc η 85.4 %

O

= 1.8Vdc η 87.1 %

O

sw

⎯

500

⎯

kHz

Dynamic Load Response

(dIo/dt=10A/μs; VIN = V

IN, nom

; V

= 1.8V, TA=25°C)

out

Load Change from Io= 0% to 50% of Io,max;
Co = 0

Peak Deviation All V

Settling Time (Vo<10% peak deviation)

Load Change from Io= 50% to 0%of Io,max:
Co = 0

All t

Peak Deviation All V

Settling Time (Vo<10% peak deviation)

All t

pk

s

pk

s

360 mV

40

μs

520 mV

40

μs

1

External capacitors may require using the new Tunable Loop feature to ensure that the module is stable as well as

getting the best transient response. See the Tunable Loop section for details.

LINEAGE POWER 3

Data Sheet
October 31, 2011

5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A output current

Naos Raptor 50A: Non Isolated Power Module:

General Specifications

Parameter Min Typ Max Unit

Calculated MTBF (VIN=12V, VO=2Vdc, IO=0.8I
Telcordia Method

Weight

, TA=40°C) Per

O, max

4,138,506 Hours

⎯

23.7 (0.835)

⎯

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

Enable Signal Interface

(VIN=V

IN, min

to V

IN, max

; open collector or equivalent,

Signal referenced to GND)

Logic High (Enable pin open – Module ON)

Input High Current All IIH

Input High Voltage All VIH

Logic Low (Module OFF)

Input Low Current All IIL

Input Low Voltage All VIL

PwGood (Power Good) Signal Interface Open
Collector/Drain

PwGood = High = Power Good
PwGood = Low = Power Not Good

Logic level low voltage, I

Logic level high voltage, I

= 4 mA 0 0.4 V

sink

= 2 mA 2.4 5.25 V

source

Sink Current, PwGood = low 4 mA

Source Current, PwGood = high 2 mA

Turn-On Delay and Rise Times
(VIN=V

IN, nom

, IO=I

to within ±1% of steady state)

O, max , VO

Case 1: Enable input is enabled and then
input power is applied (delay from instant at
which VIN = V

until Vo = 10% of Vo, set)

IN, min

All Tdelay 3 msec

Case 2: Input power is applied for at least one second
and then the Enable input is enabled (delay from instant

All Tdelay 1.2 msec

at which Enable is enabled until Vo = 10% of Vo, set)

Output voltage Rise time (time for Vo to rise from
10% of Vo, set to 90% of Vo, set)

Output voltage overshoot
IO = I

O, max

; V

IN, min

– V

, TA = 25 oC

IN, max

All Trise

0.5 % V

Remote Sense Range All

Over Temperature Protection All T

(See Thermal Considerations section)

Input Undervoltage Lockout

Turn-on Threshold All

Turn-off Threshold All

Overvoltage Protection (Hiccup Mode) All

105 ºC

ref

0.5

3.5

⎯

⎯

3.3 mA

V

V

in,max

⎯ ⎯

-0.3

⎯

200 µA

1.2 V

3 msec

⎯ ⎯

0.5 V

4.4 4.8 Vdc

4.2 Vdc

120 125 130 %V

O, set

O, set,

LINEAGE POWER 4

Data Sheet

OUTPUT

CURRENT

OUTPUT

VOLTAGE

October 31, 2011

5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A output current

Naos Raptor 50A: Non Isolated Power Module:

Characteristic Curves

The following figures provide typical characteristics for the Naos Raptor 50A module at 0.6Vout and at 25ºC.

90

85

80

75

70

65

EFFICIENCY, η (%)

60

0 1020304050

Vin = 5V

Vin = 12V

Vin = 14V

OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC

Figure 1. Converter Efficiency versus Output Current.

60

50

40

30

20

10

OUTPUT CURRENT, Io (A)

25 30 35 40 45 50 55 60 65 70

1.5m/s

(300LFM)

1m/s

(200LFM)

0.5m/s

(100LFM)

Figure 2. Derating Output Current versus Ambient
Temperature and Airflow.

2m/s

(400LFM)

NC

(V) 2mV/div)

O

V

OUTPUT VOLTAGE

TIME, t (1μs/div) TIME, t (40μs /div)

Figure 3. Typical output ripple and noise (V
I

o,max).

(V) (5V/div)

ON/OFF

(V) (200mV/div) V

O

OUTPUT VOLTAGE ON/OFF VOLTAGE

V

TIME, t (1ms/div) TIME, t (1ms/div)

IN = 12V, Io =

(V) (200mV/div)

O

,

(A) (10Adiv) V

O

I

Figure 4. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with VIN=12V.

(V) (5V/div)

IN

(V) (200mV/div) V

O

OUTPUT VOLTAGE INPUT VOLTAGE

V

Figure 5. Typical Start-up Using On/Off Voltage (Io =
I

o,max).

Figure 6. Typical Start-up Using Input Voltage (V
12V, I

o = Io,max).

IN =

LINEAGE POWER 5

Data Sheet

OUTPUT

CURRENT

OUTPUT

VOLTAGE

October 31, 2011

5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A output current

Naos Raptor 50A: Non Isolated Power Module:

Characteristic Curves (continued)

The following figures provide typical characteristics for the Naos Raptor 50A module at 1.2Vout and at 25ºC.

95

90

60

50

2m/s

(400LFM)

85

80

75

Vin = 5V

Vin = 12V

Vin = 14V

EFFICIENCY, η (%)

70

0 1020304050

OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC

Figure 7. Converter Efficiency versus Output Current.

(V) (20mV/div)

O

V

OUTPUT VOLTAGE

TIME, t (1μs/div) TIME, t (40μs /div)

Figure 9. Typical output ripple and noise (V
I

o,max).

IN = 12V, Io =

40

30

20

10

OUTPUT CURRENT, Io (A)

25 30 35 40 45 50 55 60 65 70

1.5m/s

(300LFM)

1m/s

(200LFM)

0.5m/s

(100LFM)

NC

Figure 8. Derating Output Current versus Ambient
Temperature and Airflow.

(V) (200mV/div)

O

,

(A) (10Adiv) V

O

I

Figure 10. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with VIN=12V.

(V) (5V/div)

ON/OFF

(V) (500mV/div) V

O

OUTPUT VOLTAGE ON/OFF VOLTAGE

V

TIME, t (1ms/div) TIME, t (1ms/div)

Figure 11. Typical Start-up Using On/Off Voltage (Io =
I

o,max).

(V) (5V/div)

IN

(V) (500mV/div) V

O

OUTPUT VOLTAGE INPUT VOLTAGE

V

Figure 12. Typical Start-up Using Input Voltage (V
12V, I

o = Io,max).

IN =

LINEAGE POWER 6

Data Sheet

OUTPUT

CURRENT

OUTPUT

VOLTAGE

VOLTAGE

October 31, 2011

5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A output current

Naos Raptor 50A: Non Isolated Power Module:

Characteristic Curves (continued)

The following figures provide typical characteristics for the Naos Raptor 50A module at 1.8Vout and at 25ºC.

95

90

60

50

2m/s

(400LFM)

85

80

75

Vin = 5V

Vin = 12V

Vin = 14V

EFFICIENCY, η (%)

70

0 1020304050

OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC

Figure 13. Converter Efficiency versus Output Current.

(V) (20mV/div)

O

V

OUTPUT VOLTAGE

TIME, t (1μs/div) TIME, t (100μs /div)

Figure 15. Typical output ripple and noise (V
= I

o,max).

IN = 12V, Io

40

30

20

10

OUTPUT CURRENT, Io (A)

25 30 35 40 45 50 55 60 65 70

1.5m/s

(300LFM)

1m/s

(200LFM)

0.5m/s

(100LFM)

NC

Figure 14. Derating Output Current versus Ambient
Temperature and Airflow.

(V) (200mV/div)

O

,

(A) (10Adiv) V

O

I

Figure 16. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with VIN=12V.

(V)

ON/OFF

(V) (1V/div) V

O

(5V/div)

V

TIME, t (1ms/div)

Figure 17. Typical Start-up Using On/Off Voltage (Io =
I

o,max).

(V)

IN

(V) (1V/div) V

O

V

(5V/div)

TIME, t (1ms/div)

Figure 18. Typical Start-up Using Input Voltage (V
12V, I

o = Io,max).

IN =

LINEAGE POWER 7

Data Sheet
October 31, 2011

5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A output current

Test Configurations

TO OSCILLOSCOPE

L

TEST

1μH

CS 1000μF

BATTERY

NOTE: Measure input reflected ripple current with a simulated

Electrolytic

E.S.R.<0.1Ω

@ 20°C 100kHz

source induct ance (L
possible battery impedance. Measure current as shown
above.

) of 1μH. Capacit or CS offsets

TEST

Figure 19. Input Reflected Ripple Current Test
Setup.

COPPER STRIP

V

(+)

O

1uF .

COM

GROUND PLANE

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 20. Output Ripple and Noise Test Setup.

R

R

contact

distribution

R

R

contact

distribution

NOTE: All volt age meas urements to be taken at th e module

terminals , as shown above. If socket s are us ed then
Kelvin conn ections are requir ed at the modu le termi nals
to avoid measur ement err ors due to soc ket contact
resistance.

VIN(+)

V

IN

COM

Figure 21. Output Voltage and Efficiency Test
Setup.

. I

V

O

Efficiency

=

η

VIN. I

O

IN

10uF

V

COM

2x100μF

Tantalum

O

CURRENT PROBE

CIN

SCOPE

V

O

x 100 %

VIN(+)

COM

RESISTIVE
LOAD

R

contactRdistribution

R

contactRdistribution

R

LOAD

Naos Raptor 50A: Non Isolated Power Module:

Design Considerations

Input Filtering

The Naos Raptor 50A 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 polymer
and ceramic capacitors are recommended at the input
of the module. Figure 22 shows the input ripple
voltage for various output voltages at 50A of load
current with 2x22 µF or 4x22 µF ceramic capacitors
and an input of 12V. A minimum input capacitance of
3x22 µF ceramic capacitors in order to handle worst­case conditions over the entire input voltage, output
voltage and load range. For more specific conditions,
please consult your Lineage Power technical
representative.

100

90
80
70
60

50
40
30

20
10

0

0.5 1 1.5 2

2x22uF

4x22uF

Figure 22. Input ripple voltage for various output
voltages with 2x22 µF or 4x22 µF ceramic
capacitors at the input (50A load). Input voltage is
12V.

Output Filtering

The Naos Raptor 50A 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

LINEAGE POWER 8

Data Sheet
October 31, 2011

performance of the module can be achieved by using
the Tunable Loop feature described later in this data
sheet.

5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A output current

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. 60950-1­03, 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 fast­acting fuse with a maximum rating of 30 A in the
positive input lead

.

Naos Raptor 50A: Non Isolated Power Module:

Feature Descriptions

Enable (Remote On/Off)

The Naos Raptor 50A power modules feature an
Enable with positive logic pin for remote On/Off
operation. If not using the Enable pin, leave the pin
open (the module will be ON, except for the -49 option
and the -432 modules where leaving the pin open will
cause the module to remain OFF). The Enable signal
(V

) is referenced to ground.

Enable

During a Logic High on the Enable pin, the module
remains ON. During Logic-Low, the module is turned
OFF.

2.2K

GND

47K

5V

o,max

2K

ENABLE

.

MOD UL E

2K

100K

ON/OF F

2.2K

47K

Figure 23. Remote On/Off Implementation. The
100K resistor is absent in the -49 option and -432
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 typical average
output current during hiccup is 10% of I

LINEAGE POWER 9

Data Sheet
October 31, 2011

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 105ºC
is exceeded at the thermal reference point T
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.

5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A output current

. The

red

Naos Raptor 50A: Non Isolated Power Module:

VIN(+)

ON/OFF

VO(+)

TRIM+

TRIM−

GND

Vout

R

trim

LOAD

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.

Output Voltage Programming

The output voltage of the Naos Raptor 50A module
can be programmed to any voltage from 0.6Vdc to

2.0Vdc by connecting a resistor between the Trim +
and Trim - pins of the module. 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:

Rtrim

Rtrim is the external resistor in kΩ

Vo is the desired output voltage

Table 1 provides Rtrim values required for some
common output voltages.

Vo

−

2.1

= k

Ω

)6.0(

Table 1

V

(V)

O, set

0.6 Open

0.8 6.00

1.0 3.00

1.2 2.00

1.5 1.333

1.8 1.000

By using a ±0.1% tolerance trim resistor with a TC of
±25ppm, a set point tolerance of ±1% 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.

Rtrim (KΩ)

Figure 24. Circuit configuration for programming
output voltage using an external resistor.

LINEAGE POWER 10

Data Sheet
October 31, 2011

Power Good

The Naos Raptor 50A 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.

Monotonic Start-up and Shutdown

The Naos Raptor 50A
up and shutdown behavior for any combination of
rated input voltage, output current and operating
temperature range.

modules have monotonic start-

Tunable Loop

The Naos Raptor 50A modules have a new feature
that optimizes transient response of the module called
Tunable Loop. External capacitors are usually added
to improve output voltage transient response due to

Vout 1.8V 1.2V 0.6V

4x47μF

Cext

R

TUNE

C

TUNE

ΔV

+

7x330uF

Polymer

47 39 33

33nF 100nF 220nF

35mV 23mV 12mV

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 Loop 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. 25. 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 R
in Tables 2 and 3. Table 2 lists recommended values
of R

TUNE

and C

TUNE

voltage deviation limits for some common output
voltages in the presence of a 25A to 50A step change

4x47μF

+

12x330uF

Polymer

TUNE

in order to meet 2% output

5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A output current

4x47μF

+

25x330uF

Polymer

and C

TUNE

are given

Naos Raptor 50A: Non Isolated Power Module:

(50% of full load), with an input voltage of 12V. Table
3 shows the recommended values of R

TUNE

and C

TUNE

for different values of ceramic output capacitors up to
1000uF, again for an input voltage of 12V. The value
of R

should never be lower than the values shown

TUNE

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.

VOUT

SENSE+

RTune

MODULE

CTune

TRIM+

RTrim

TRIM-

Figure. 25. Circuit diagram showing connection of

and C

R

TUME

module.

Table 2. Recommended values of R
to obtain transient deviation of 2% of Vout for a
25A step load with Vin=12V.

Table 3. General recommended values of of R
and C

TUNE

ceramic capacitor combinations.

Cext

R

TUNE

C

TUNE

to tune the control loop of the

TUNE

and C

TUNE

TUNE

TUNE

for Vin=12V and various external

2x47μF 4x47μF 10x47μF 20x47μF 40x47μF

75 75 47 39 33

1000pF 2200pF 5600pF 10nF 22nF

LINEAGE POWER 11

Data Sheet

p

October 31, 2011

5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A output current

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 set­up is shown in Figure 26. The preferred airflow
direction for the module is in Figure 27.

Naos Raptor 50A: Non Isolated Power Module:

guidance on appropriate soldering, cleaning and
drying procedures, refer to Board Mounted Power
Modules: Soldering and Cleaning Application Note.

76.2
[3.0]

50.8

[2.00]

[0.285]

7.24

Power Module

Probe Location
for measuring
airflow and
ambient

erature

tem

Wind Tunnel

PWBs

Air

Flow

Figure 26. Thermal Test Set-up.

The thermal reference points, T

ref1

and T

used in

ref2

the specifications are shown in Figure 27. For reliable
operation the temperature at T

o

C, and the temperature at T

120

o

105

C. Please refer to the Application Note “Thermal

should not exceed

ref1

should not exceed

ref2

Characterization Process For Open-Frame Board­Mounted Power Modules” for a detailed discussion of
thermal aspects including maximum device
temperatures.

The output power of the module should not exceed
the rated power of the module (Vo,set x Io,max).

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

Figure 27. Temperature measurement locations
T

ref1

and T

ref2

.

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
representative for more details.

LINEAGE POWER 12

Data Sheet
October 31, 2011

5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A output current

Naos Raptor 50A: Non Isolated Power Module:

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)

Front View

Pin Function Pin Function

1 Vout

2 Vout 9 PwGood

3 Vout 10 Sense -

4 GND 11 Sense +

5 GND 12 Vin

6 Enable 13 Vin

7 Trim - 14 GND

15 GND

8 Trim +

Side View

Pin Out

LINEAGE POWER 13

Data Sheet
October 31, 2011

5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A output current

Naos Raptor 50A: Non Isolated Power Module:

Recommended Pad Layout

Dimensions are in millimeters and (inches).

Tolerances: x.x mm ± 0.5 mm (x.xx in. ± 0.02 in.) [unless otherwise indicated]

x.xx mm ± 0.25 mm (x.xxx in ± 0.010 in.)

LINEAGE POWER 14

Data Sheet

a

©

October 31, 2011

5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A output current

Naos Raptor 50A: Non Isolated Power Module:

Ordering Information

Please contact your Lineage Power Sales Representative for pricing, availability and optional features.

Table 4. Device Code

Device Code

NSR050A0X43-49Z 5 – 14Vdc 0.6 – 2.0Vdc 50 A Positive SIP CC109138244

Input

Voltage Range

Z refers to RoHS-compliant codes

Output

Voltage

Output

Current

On/Off

Logic

Connector Type Comcode

Asia-Pacific Headquarters

Tel: [phone]*808

World Wide Headquarters
Lineage Power Corporation

601 Shiloh Road, Plano, TX 75074, USA
+1-888-LINEAGE(546-3243)
(Outside U.S.A.: +1-972-244-WATT(9288))

www.lineagepower.com
e-mail: [e-mail]

Europe, Middle-East and Africa Headquarters

Tel: [phone]

India Headquarters

Tel: [phone]

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.

LINEAGE POWER 15

Document No: DS07-006 ver. 1.04

PDF name: NSR050A0X_ds.pdf