LINEAGEPOWER NSR050A0X432Z

Data Sheet
February 3, 2010
Naos Raptor 50A: Non-Isolated Power Modules
5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A Output Current
Features
RoHS Compliant
Applications

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)

Tunable Loop to optimize dynamic output voltage
response

Fixed switching frequency

Output overcurrent protection (non-latching)
Output voltage programmable from 0.6Vdc to
2.0Vdc via external resistor

Over temperature protection

Distributed power architectures

Over voltage protection – Hiccup Mode

Intermediate bus voltage applications

Remote On/Off

Telecommunications equipment

Power Good Signal

Servers and storage applications

Small size:

Networking equipment


Wide operating temperature range (0°C to 70°C)

ISO** 9001 and ISO 14001 certified manufacturing
facilitiesISO** 9001 and ISO 14001 certified
manufacturing facilities
36.8 mm x 27.9 mm x 20.1 mm
(1.45 in. x 1.10 in. x 0.79 in)
†
UL* 60950 Recognized, CSA C22.2 No. 60950-00
‡
rd
Certified, and VDE 0805 (EN60950-1 3 edition)
Licensed
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 (VIN = 12Vdc). These
modules operate over a wide range of input voltage (VIN = 5Vdc-14Vdc) and provide a precisely regulated output
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.
* 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: DS10-004 ver. 1.05
PDF name: NSR050A0X432_ds.pdf
Data Sheet
February 3, 2010
Naos Raptor 50A: Non Isolated Power Module:
5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A output current
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
All
VIN
All
TA
-0.3
15
Vdc
0
70
°C
All
Tstg
-55
125
°C
Input Voltage
Continuous
Operating Ambient Temperature
(see Thermal Considerations section)
Storage Temperature
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
IIN,max
22.5
Adc
VO,set = 0.6 Vdc
IIN,No load
140
mA
VO,set = 1.8Vdc
IIN,No load
200
mA
All
IIN,stand-by
16
mA
Inrush Transient
All
It
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
172
Input Ripple Rejection (120Hz)
All
48
(VIN= VIN, min to VIN, max, IO=IO, max VO,set = 2Vdc)
Input No Load Current
(VIN = 12Vdc, IO = 0, module enabled)
Input Stand-by Current
(VIN = 12Vdc, module disabled)
2
1
2
As
mAp-p
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.
LINEAGE POWER
2
Data Sheet
February 3, 2010
Naos Raptor 50A: Non Isolated Power Module:
5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A output current
Electrical Specifications (continued)
Parameter
Device
Symbol
Min
Output Voltage Set-point (with 0.1% tolerance for
external resistor used to set output voltage)
All
VO, set
-1.0
Output Voltage
All
VO, set
-2.0
All
VO
0.6
Typ
⎯
Max
Unit
+1.0
% VO, set
+2.0
% VO, set
2.0
Vdc
(Over all operating input voltage, resistive load, and
temperature conditions until end of life)
Adjustment Range
Selected by an external resistor
Output Regulation (for VO < 2.0V)
Line (VIN=VIN, min to VIN, max)
All
⎯
9
mV
Load (IO=IO, min to IO, max)
All
⎯
12
mV
mVpk-pk
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
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 = 1.8V
⎯
40
mVpk-pk
4260
μF
μF
External Capacitance
1
Without the Tunable Loop
All
CO, max
0
⎯
ESR ≥ 0.15 mΩ
All
CO, max
0
⎯
4000
ESR ≥ 10 mΩ
All
CO, max
0
⎯
10000
μF
Output Current
All
Io
0
⎯
50
Adc
Output Current Limit Inception (Hiccup Mode )
All
IO, lim
Output Short-Circuit Current
All
IO, s/c
⎯
Arms
(combination of 500μF ceramic and 3760μF polymer)
With the Tunable Loop
146
⎯
5.54
% Io
(VO≤250mV) ( Hiccup Mode )
Efficiency
VO = 0.6Vdc
η
72.5
%
VO = 1Vdc
η
80.6
%
VO = 1.2Vdc
η
83.1
%
VO = 1.5Vdc
η
85.4
%
VO = 1.8Vdc
η
87.1
All
fsw
Peak Deviation
All
Vpk
360
mV
Settling Time (Vo<10% peak deviation)
All
ts
40
μs
Peak Deviation
All
Vpk
520
mV
Settling Time (Vo<10% peak deviation)
All
ts
40
μs
VIN= VIN, nom, TA=25°C
IO=IO, max , VO= VO,set
Switching Frequency
⎯
500
%
⎯
kHz
Dynamic Load Response
(dIo/dt=10A/μs; VIN = VIN, nom; Vout = 1.8V, TA=25°C)
Load Change from Io= 0% to 50% of Io,max;
Co = 0
Load Change from Io= 50% to 0%of Io,max:
Co = 0
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
February 3, 2010
Naos Raptor 50A: Non Isolated Power Module:
5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A output current
General Specifications
Parameter
Min
Calculated MTBF (VIN=12V, VO=2Vdc, IO=0.8IO, max, TA=40°C) Per
Telcordia Method
Max
Unit
4,138,506
⎯
Weight
Typ
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=VIN, min to VIN, max ; open collector or equivalent,
Signal referenced to GND)
Logic High (Enable pin open – Module ON)
Input High Current
All
IIH
0.5
⎯
3.3
mA
Input High Voltage
All
VIH
3.5
⎯
Vin,max
V
Logic Low (Module OFF)
Input Low Current
All
IIL
⎯
⎯
200
µA
Input Low Voltage
All
VIL
-0.3
⎯
1.2
V
0
0.4
V
2.4
5.25
V
Sink Current, PwGood = low
4
mA
Source Current, PwGood = high
2
mA
PwGood (Power Good) Signal Interface Open
Collector/Drain
PwGood = High = Power Good
PwGood = Low = Power Not Good
Logic level low voltage, Isink = 4 mA
Logic level high voltage, Isource = 2 mA
Turn-On Delay and Rise Times
(VIN=VIN, nom, IO=IO, max , VO to within ±1% of steady state)
Case 1: Enable 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 Enable input is enabled (delay from instant
at which Enable 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
0.5
% VO, set
0.5
V
Output voltage overshoot
o
IO = IO, max; VIN, min – VIN, max, TA = 25 C
Remote Sense Range
All
Over Temperature Protection
All
⎯
Tref
⎯
105
ºC
(See Thermal Considerations section)
Input Undervoltage Lockout
Turn-on Threshold
All
4.4
Turn-off Threshold
All
4.2
Overvoltage Protection (Hiccup Mode)
LINEAGE POWER
All
120
125
4.8
Vdc
Vdc
130
%VO, set,
4
Data Sheet
February 3, 2010
Naos Raptor 50A: Non Isolated Power Module:
5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A output current
Characteristic Curves
The following figures provide typical characteristics for the Naos Raptor 50A module at 0.6Vout and at 25ºC.
90
60
OUTPUT CURRENT, Io (A)
EFFICIENCY, η (%)
85
80
75
70
Vin = 5V
Vin = 12V
Vin = 14V
65
60
0
10
20
30
40
LINEAGE POWER
1.5m/s
(300LFM)
10
30
35
40
45
50
0.5m/s
(100LFM)
55
60
NC
65
VO (V) (200mV/div)
IO (A) (10Adiv)
OUTPUT CURRENT,
OUTPUT VOLTAGE
Figure 5. Typical Start-up Using On/Off Voltage (Io =
Io,max).
1m/s
(200LFM)
20
Figure 2. Derating Output Current versus Ambient
Temperature and Airflow.
TIME, t (40μs /div)
INPUT VOLTAGE
VIN (V) (5V/div)
Figure 4. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with VIN=12V.
VO (V) (200mV/div)
VON/OFF (V) (5V/div)
VO (V) (200mV/div)
TIME, t (1ms/div)
30
AMBIENT TEMPERATURE, TA C
OUTPUT VOLTAGE
VO (V) 2mV/div)
OUTPUT VOLTAGE
ON/OFF VOLTAGE
OUTPUT VOLTAGE
Figure 3. Typical output ripple and noise (VIN = 12V, Io =
Io,max).
40
O
OUTPUT CURRENT, IO (A)
TIME, t (1μs/div)
50
25
50
Figure 1. Converter Efficiency versus Output Current.
2m/s
(400LFM)
TIME, t (1ms/div)
Figure 6. Typical Start-up Using Input Voltage (VIN =
12V, Io = Io,max).
5
70
Data Sheet
February 3, 2010
Naos Raptor 50A: Non Isolated Power Module:
5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A output current
Characteristic Curves (continued)
95
60
90
50
OUTPUT CURRENT, Io (A)
EFFICIENCY, η (%)
The following figures provide typical characteristics for the Naos Raptor 50A module at 1.2Vout and at 25ºC.
85
80
Vin = 5V
Vin = 12V
Vin = 14V
75
70
0
10
20
30
40
Figure 11. Typical Start-up Using On/Off Voltage (Io =
Io,max).
LINEAGE POWER
1.5m/s
(300LFM)
1m/s
(200LFM)
10
30
35
40
45
50
0.5m/s
(100LFM)
55
60
NC
65
OUTPUT VOLTAGE
VO (V) (200mV/div)
OUTPUT CURRENT,
IO (A) (10Adiv)
Figure 8. Derating Output Current versus Ambient
Temperature and Airflow.
TIME, t (40μs /div)
INPUT VOLTAGE
VIN (V) (5V/div)
Figure 10. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with VIN=12V.
VO (V) (500mV/div)
VON/OFF (V) (5V/div)
VO (V) (500mV/div)
TIME, t (1ms/div)
20
AMBIENT TEMPERATURE, TA C
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT VOLTAGE
ON/OFF VOLTAGE
OUTPUT VOLTAGE
Figure 9. Typical output ripple and noise (VIN = 12V, Io =
Io,max).
30
O
OUTPUT CURRENT, IO (A)
TIME, t (1μs/div)
40
25
50
Figure 7. Converter Efficiency versus Output Current.
2m/s
(400LFM)
TIME, t (1ms/div)
Figure 12. Typical Start-up Using Input Voltage (VIN =
12V, Io = Io,max).
6
70
Data Sheet
February 3, 2010
Naos Raptor 50A: Non Isolated Power Module:
5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A output current
Characteristic Curves (continued)
95
60
90
50
85
Vin = 5V
OUTPUT CURRENT, Io (A)
EFFICIENCY, η (%)
The following figures provide typical characteristics for the Naos Raptor 50A module at 1.8Vout and at 25ºC.
Vin = 12V
Vin = 14V
80
75
70
0
10
20
30
40
20
1.5m/s
(300LFM)
1m/s
(200LFM)
0.5m/s
(100LFM)
10
30
35
40
45
50
55
60
NC
65
AMBIENT TEMPERATURE, TA C
Figure 15. Typical output ripple and noise (VIN = 12V, Io
= Io,max).
OUTPUT VOLTAGE
VO (V) (200mV/div)
IO (A) (10Adiv)
TIME, t (1μs/div)
OUTPUT CURRENT,
Figure 14. Derating Output Current versus Ambient
Temperature and Airflow.
VO (V) (20mV/div)
TIME, t (100μs /div)
VOLTAGE
VO (V) (1V/div)
(5V/div)
VIN (V)
VON/OFF (V)
Figure 16. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with VIN=12V.
TIME, t (1ms/div)
Figure 17. Typical Start-up Using On/Off Voltage (Io =
Io,max).
VO (V) (1V/div)
(5V/div)
OUTPUT VOLTAGE
30
O
Figure 13. Converter Efficiency versus Output Current.
VOLTAGE
40
25
50
OUTPUT CURRENT, IO (A)
LINEAGE POWER
2m/s
(400LFM)
TIME, t (1ms/div)
Figure 18. Typical Start-up Using Input Voltage (VIN =
12V, Io = Io,max).
7
70
Data Sheet
February 3, 2010
Naos Raptor 50A: Non Isolated Power Module:
5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A output current
Test Configurations
Design Considerations
CURRENT PROBE
TO OSCILLOSCOPE
LTEST
VIN(+)
BATTERY
1μH
CIN
CS 1000μF
Electrolytic
2x100μF
Tantalum
E.S.R.<0.1Ω
@ 20°C 100kHz
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.
Figure 19. Input Reflected Ripple Current Test
Setup.
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.
COPPER STRIP
VO (+)
RESISTIVE
LOAD
1uF
.
10uF
SCOPE
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.
100
90
80
70
60
2x22uF
4x22uF
50
40
30
20
10
0
0.5
Rdistribution
Rcontact
Rcontact
VIN(+)
Rdistribution
VO
RLOAD
VO
VIN
1
1.5
2
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
Rdistribution
Rcontact
Rcontact
COM
Rdistribution
COM
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 21. Output Voltage and Efficiency Test
Setup.
VO. IO
Efficiency
η =
LINEAGE POWER
VIN. IIN
x
100 %
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
8
Data Sheet
February 3, 2010
Naos Raptor 50A: Non Isolated Power Module:
5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A output current
performance of the module can be achieved by using
the Tunable Loop feature described later in this data
sheet.
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.
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
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.
MODULE
5V
2K
2K
100K
ENABLE
ON/OFF
2.2K
2.2K
47K
47K
GND
Figure 23. Remote On/Off Implementation. The
100K resistor is absent in the -49 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 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 105ºC
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
LINEAGE POWER
9
Data Sheet
February 3, 2010
Naos Raptor 50A: Non Isolated Power Module:
5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A output current
Power Good
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 =
1.2
kΩ
(Vo − 0.6)
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
Vo is the desired output voltage
The Naos Raptor 50A modules have monotonic startup and shutdown behavior for any combination of
rated input voltage, output current and operating
temperature range.
Table 1 provides Rtrim values required for some
common output voltages.
Tunable Loop
Rtrim is the external resistor in kΩ
Table 1
VO, set (V)
Rtrim (KΩ)
0.6
0.8
1.0
1.2
1.5
1.8
Open
6.00
3.00
2.00
1.333
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.
V IN(+)
V O(+)
ON/OFF
TRIM+
Vout
LOAD
R trim
TRIM−
GND
Figure 24. Circuit configuration for programming
output voltage using an external resistor.
LINEAGE POWER
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
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 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 25A to 50A 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
1000uF, 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.
10
Data Sheet
February 3, 2010
Naos Raptor 50A: Non Isolated Power Module:
5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A output current
Thermal Considerations
VOUT
SENSE+
Power modules operate in a variety of thermal
environments; however sufficient cooling should
always be provided to help ensure reliable operation.
RTune
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.
MODULE
CTune
TRIM+
RTrim
TRIMFigure. 25. Circuit diagram showing connection of
RTUME and CTUNE to tune the control loop of the
module.
Wind Tunnel
50.8
[2.00]
PWBs
Power Module
Table 2. Recommended values of RTUNE and CTUNE
to obtain transient deviation of 2% of Vout for a
25A step load with Vin=12V.
Vout
Cext
RTUNE
1.8V
1.2V
3x47μF
+
7x330uF
Polymer
47
0.6V
39
2x47μF
+
24x330uF
Polymer
33
12x330uF
Polymer
CTUNE
22nF
100nF
330nF
ΔV
35mV
23mV
12mV
76.2
[3.0]
7.24
[0.285]
Table 3. General recommended values of of RTUNE
and CTUNE for Vin=12V and various external
ceramic capacitor combinations.
Probe Location
for measuring
airflow and
ambient
temperature
Air
Flow
Cext 2x47μF 4x47μF 10x47μF 20x47μF 40x47μF
Figure 26. Thermal Test Set-up.
RTUNE
Open
Open
47
39
33
CTUNE
Open
Open
3900pF
10nF
22nF
The thermal reference points, Tref1 and Tref2 used in
the specifications are shown in Figure 27. For reliable
operation the temperature at Tref1 should not exceed
o
120 C, and the temperature at Tref2 should not exceed
105 oC. Please refer to the Application Note “Thermal
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
LINEAGE POWER
11
Data Sheet
February 3, 2010
Naos Raptor 50A: Non Isolated Power Module:
5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A output current
testability of the finished circuit-board assembly. For
guidance on appropriate soldering, cleaning and
drying procedures, refer to Board Mounted Power
Modules: Soldering and Cleaning Application Note.
Figure 27. Temperature measurement locations
Tref1 and Tref2.
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
February 3, 2010
Naos Raptor 50A: Non Isolated Power Module:
5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A output current
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
Side View
Pin
Function
Pin
1
Vout
8
Function
Trim +
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
Pin Out
LINEAGE POWER
13
Data Sheet
February 3, 2010
Naos Raptor 50A: Non Isolated Power Module:
5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A output current
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
February 3, 2010
Naos Raptor 50A: Non Isolated Power Module:
5 – 14Vdc input; 0.6Vdc to 2.0Vdc Output; 50A output current
Ordering Information
Please contact your Lineage Power Sales Representative for pricing, availability and optional features.
Table 4. Device Code
Device Code
Input
Voltage Range
Output
Voltage
Output
Current
On/Off
Logic
Connector Type
Comcode
NSR050A0X432Z
5 – 14Vdc
0.6 – 2.0Vdc
50 A
Positive
SIP
CC109154935
Z refers to RoHS-compliant codes
Asia-Pacific Headquarters
Tel: +65 6593 7211
World Wide Headquarters
Lineage Power Corporation
601 Shiloh Road, Plano, TX 75074, USA
+1-800-526-7819
(Outside U.S.A.: +1-972-244-9428)
www.lineagepower.com
e-mail: [email protected]
Europe, Middle-East and Africa Headquarters
Tel: +49 898 780 672 80
India Headquarters
Tel: +91 80 28411633
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
application. 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.
© 2009 Lineage Power Corporation, (Plano, Texas) All International Rights Reserved.
LINEAGE POWER
15
Document No: DS10-004 ver. 1.05
PDF name: NSR050A0X432_ds.pdf