NSR020A0X43Z - ABB - Datasheet.Directory

Data Sheet

July 11, 2011

Naos Raptor 20A: Non-Isolated Power Modules

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A 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: DS06-127 ver. 1.11

PDF name: NSR020A0X_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 (4.5Vdc-14Vdc)

 Output voltage programmable from 0.59Vdc to 6Vdc

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

 Small size: 36.8 mm x 15.5 mm x 9.2 mm

(1.45 in. x 0.61 in. x 0.36 in)

 Wide operating temperature range (-40°C to 85°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

facilities

Applications

 Distributed power architectures

 Intermediate bus voltage applications

 Telecommunications equipment

 Servers and storage applications

 Networking equipment

Description

The Naos Raptor 20A SIP power modules are non-isolated dc-dc converters in an industry standard package that

can deliver up to 20A of output current with a full load efficiency of 91% at 3.3Vdc output voltage (VIN = 12Vdc).

These modules operate over a wide range of input voltage (VIN = 4.5Vdc-13.8Vdc) and provide a precisely regulated

output voltage from 0.59Vdc to 6Vdc, 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 20A: Non Isolated Power Module:

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A 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 -40 85 °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 4.5 12.0 13.8 Vdc

Maximum Input Current All IIN,max 20 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 50 mA

(VIN = 12Vdc, IO = 0, module ON) VO,set = 5.0Vdc IIN,No load 110 mA

Input Stand-by Current All IIN,stand-by 6.08 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 34.4 mAp-p

Input Ripple Rejection (120Hz) All 43 dB

Data Sheet

July 11, 2011

Naos Raptor 20A: Non Isolated Power Module:

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current

LINEAGE POWER 3

Electrical Specifications (continued)

Parameter Device Symbol Min Typ Max Unit

Output Voltage Set-point (with 0.5% tolerance

for external resistor used to set output voltage) All VO, set -1.5 +1.5 % VO, set

Output Voltage All VO, set –3.0 ⎯ +3.0 % VO, set

(Over all operating input voltage, resistive load,

and temperature conditions until end of life)

Adjustment Range All VO 0.59 6 Vdc

Selected by an external resistor

Output Regulation (for VO ≥ 2.5V)

Line (VIN=VIN, min to VIN, max) All -0.2

⎯ +0.2 % VO, set

Load (IO=IO, min to IO, max All ⎯ 0.8 % VO, set

Output Regulation (for VO < 2.5V)

Line (VIN=VIN, min to VIN, max) All -5

⎯ +5 mV

Load (IO=IO, min to IO, max) All ⎯ 20 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 = 0.59V ⎯ 20 mVpk-pk

Peak-to-Peak (5Hz to 20MHz bandwidth) Vo = 1.2V ⎯ 23 mVpk-pk

Peak-to-Peak (5Hz to 20MHz bandwidth) Vo = 1.8V ⎯ 25 mVpk-pk

Peak-to-Peak (5Hz to 20MHz bandwidth) Vo = 2.5V ⎯ 30 mVpk-pk

Peak-to-Peak (5Hz to 20MHz bandwidth) Vo = 3.3V ⎯ 40 mVpk-pk

Peak-to-Peak (5Hz to 20MHz bandwidth) Vo = 5.0V ⎯ 50 mVpk-pk

Peak-to-Peak (5Hz to 20MHz bandwidth) Vo = 6.0V ⎯ 60 mVpk-pk

External Capacitance1`

Without the Tunable LoopTM

ESR ≥ 1 mΩ All CO, max ⎯ ⎯ 300 μF

With the Tunable LoopTM

ESR ≥ 0.15 mΩ All CO, max 0 ⎯ 1500 μF

ESR ≥ 10 mΩ All CO, max 0 ⎯ 10000 μF

Output Current All Io 0 ⎯ 20 Adc

Output Current Limit Inception (Hiccup Mode ) All IO, lim 140 % Io

Output Short-Circuit Current All IO, s/c 1.1 Arms

(VO≤250mV) ( Hiccup Mode )

Efficiency (Vin=9Vdc) VO,set = 0.59Vdc η 72.7 %

VIN= 12Vdc, TA=25°C VO,set = 1.2Vdc η 82.3 %

IO=IO, max , VO= VO,set V

O,set = 1.8Vdc η 87.5 %

O,set = 2.5Vdc η 90.2 %

O,set = 3.3Vdc η 92.1 %

O,set = 5.0Vdc η 94.3 %

O,set = 6.0Vdc η 95.0 %

Switching Frequency All fsw ⎯ 600 ⎯ 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 20A: Non Isolated Power Module:

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A 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 I Case 3 16,061,773 Hours

Weight ⎯ 6.6 (0.23) ⎯ 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 ⎯ 0.5 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, Isink = 5 mA 0 0.35 V

Sink Current, PwGood = low 10 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 2 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 2 3 msec

Output voltage Rise time (time for Vo to rise from

10% of Vo, set to 90% of Vo, set) All Trise 3 6 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 130 ºC

(See Thermal Considerations section)

Input Undervoltage Lockout

Turn-on Threshold All 4.2 Vdc

Turn-off Threshold All 4.1 Vdc

Data Sheet

July 11, 2011

Naos Raptor 20A: Non Isolated Power Module:

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current

LINEAGE POWER 5

Characteristic Curves

The following figures provide typical characteristics for the Naos Raptor 20A modules at 0.6Vout and 25ºC.

EFFICIENCY, η (%)

0 5 10 15 20

Vin = 4.5V

Vin = 6V

Vin = 9V

OUTPUT CURRENT, Io (A)

25 35 45 55 65 75 85

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) (10mV/div)

OUTPUT

CURRENT

OUTPUT

VOLTAGE

IO (A) (5Adiv) VO (V) (200mV/div)

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

Figure 3. Typical output ripple and noise (VIN = 9V, Io =

Io,max).

Figure 4. Transient Response to Dynamic Load

Change from 0% to 50% to 0% with VIN=9V.

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 20A: Non Isolated Power Module:

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current

LINEAGE POWER 6

Characteristic Curves (continued)

The following figures provide typical characteristics for the Naos Raptor 20A modules at 1.2Vout and 25ºC.

EFFICIENCY, η (%)

0 5 10 15 20

Vin = 4.5V

Vin = 12V Vin = 14V

OUTPUT CURRENT, Io (A)

25 35 45 55 65 75 85

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) (10mV/div)

OUTPUT

CURRENT

OUTPUT

VOLTAGE

IO (A) (5Adiv) VO (V) (200mV/div)

TIME, t (1μs/div) TIME, t (20μs /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 20A: Non Isolated Power Module:

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current

LINEAGE POWER 7

Characteristic Curves (continued)

The following figures provide typical characteristics for the Naos Raptor 20A modules at 1.8Vout and at 25ºC.

EFFICIENCY, η (%)

100

0 5 10 15 20

Vin = 4.5V

Vin = 12V Vin = 14V

OUTPUT CURRENT, Io (A)

25 35 45 55 65 75 85

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) (10mV/div)

OUTPUT

CURRENT

OUTPUT

VOLTAGE

IO (A) (5Adiv) VO (V) (200mV/div)

TIME, t (1μs/div) TIME, t (100μs /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) (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 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 20A: Non Isolated Power Module:

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current

LINEAGE POWER 8

Characteristic Curves (continued)

The following figures provide thermal derating curves for Naos Raptor 20A modules at 2.5Vout and 25ºC.

EFFICIENCY, η (%)

100

0 5 10 15 20

Vin = 4.5V

Vin = 12V Vin = 14V

OUTPUT CURRENT, Io (A)

25 35 45 55 65 75 85

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) (10mV/div)

OUTPUT

CURRENT

OUTPUT

VOLTAGE

IO (A) (5Adiv) VO (V) (200mV/div)

TIME, t (1μs/div) TIME, t (100μs /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 20A: Non Isolated Power Module:

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current

LINEAGE POWER 9

Characteristic Curves (continued)

The following figures provide thermal derating curves for Naos Raptor 20A modules at 3.3Vout and 25ºC.

EFFICIENCY, η (%)

100

0 5 10 15 20

Vin = 4.5V Vin = 12V

Vin = 14V

OUTPUT CURRENT, Io (A)

25 35 45 55 65 75 85

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) (10mV/div)

OUTPUT

CURRENT

OUTPUT

VOLTAGE

IO (A) (5Adiv) VO (V) (200mV/div)

TIME, t (1μs/div) TIME, t (100μs /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 20A: Non Isolated Power Module:

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current

LINEAGE POWER 10

Characteristic Curves (continued)

The following figures provide thermal derating curves for Naos Raptor 20A modules at 5Vout and 25ºC.

EFFICIENCY, η (%)

100

0 5 10 15 20

Vin = 6V

Vin = 12V Vin = 14V

OUTPUT CURRENT, Io (A)

25 35 45 55 65 75 85

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) (10mV/div)

OUTPUT

CURRENT

OUTPUT

VOLTAGE

IO (A) (5Adiv) VO (V) (200mV/div)

TIME, t (1μs/div) TIME, t (100μs /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 20A: Non Isolated Power Module:

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current

LINEAGE POWER 11

Characteristic Curves (continued)

The following figures provide thermal derating curves for Naos Raptor 20A modules at 6Vout and 25ºC.

EFFICIENCY, η (%)

100

0 5 10 15 20

Vin = 7.5V

Vin = 12V Vin = 14V

OUTPUT CURRENT, Io (A)

25 35 45 55 65 75 85

0.5m/s

(100LFM)

1m/s

(200LFM)

1.5m/s

(300LFM)

2m/s

(400LFM)

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

Figure 37. Converter Efficiency versus Output Current. Figure 38. Derating Output Current versus Ambient

Temperature and Airflow.

OUTPUT VOLTAGE

VO (V) (10mV/div)

OUTPUT CURRENT, OUTPUT VOLTAGE

IO (A) (5Adiv) VO (V) (200mV/div)

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

Figure 39. Typical output ripple and noise (VIN = 12V, Io

= Io,max).

Figure 40. 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 41. Typical Start-up Using On/Off Voltage (Io =

Io,max).

Figure 42. Typical Start-up Using Input Voltage (VIN =

12V, Io = Io,max).

Data Sheet

July 11, 2011

Naos Raptor 20A: Non Isolated Power Module:

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current

LINEAGE POWER 12

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 43. 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.

(+)

COM

1uF .

RESISTIVE

LOAD

SCOPE

COPPER STRIP

GROUND PLANE

10uF

Figure 44. Output Ripple and Noise Test Setup.

COM

VIN(+)

COM

RLOAD

Rcontac t Rdistribution

Rcontact

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 45. Output Voltage and Efficiency Test Setup.

η =

VO. IO

VIN. IIN

x 100 %

Efficiency

Design Considerations

Input Filtering

The Naos Raptor 20A 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 or

polymer capacitors are recommended at the input of the

module. Figure 46 shows the input ripple voltage for

various output voltages at 20A of load current with 2x22

µF or 4x22 µF ceramic capacitors and an input of 12V.

Input Ripple Voltage (mVp-p)

0.5 1 1.5 2 2.5 3 3.5 4 4.5 5

2x22uF

4x22uF

Output Voltage (Vdc)

Figure 46. Input ripple voltage for various output

voltages with 2x22 µF or 4x22 µF ceramic capacitors

at the input (20A load). Input voltage is 12V.

Output Filtering

The Naos Raptor 20A 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 20A: Non Isolated Power Module:

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current

LINEAGE POWER 13

Safety Considerations

For safety agency approval the power module must be

installed in compliance with the spacing and separation

requirements of the end-use safety agency standards,

i.e., UL 60950-1, CSA C22.2 No. 60950-1-03, and VDE

0850:2001-12 (EN60950-1) Licensed.

For the converter output to be considered meeting the

requirements of safety extra-low voltage (SELV), the

input must meet SELV requirements. The power module

has extra-low voltage (ELV) outputs when all inputs are

ELV.

An input fuse for the module is recommended. Due to the

wide input voltage and output voltage ranges of the

module, different fuse ratings are recommended as

shown in Table 1. These are suggested “maximum” fuse

ratings. However, for optimum circuit protection, the fuse

value should not be any larger than required in the end

application. As an option to using a fuse, no fuse is

required, if the module is

1. powered by a power source with current limit

protection set point less than the protection

device value listed in Table 1, and

2. the module is evaluated in the end-use

equipment.

Table 1.

Input

Voltage

(VDC)

Output Voltage (VDC)

0.59 to 1.3 1.31 to 2.7 2.71 to 5.0 5.1 to 6

10.1 to 14 5A 10A 15A 20A

6.51 to 10 6.3A 15A 25A 30A

4.5 to 6.5 10A 20A 30A NA

Feature Descriptions

Remote On/Off

The Naos Raptor 20A modules feature an On/Off pin with

positive logic for remote On/Off operation. If not using the

On/Off 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 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

7.5K

1000p

ENABLEON/OFF

GND

MODULE

Figure 47. Remote On/Off Implementation.

Components R2 and C1 are only present in the -49Z

option module.

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.

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.

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 20A: Non Isolated Power Module:

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current

LINEAGE POWER 14

Feature Descriptions (continued)

Power Good

The Naos Raptor 20A 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-temperature, 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 20A module can

be programmed to any voltage from 0.59Vdc to 6Vdc 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. 48. The Upper Limit curve shows

that for output voltages of 0.9V and lower, the input

voltage must be lower than the maximum of 14V. The

Lower Limit curve shows that for output voltages of 3.8V

and higher, the input voltage needs to be larger than the

minimum of 4.5V.

0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6

Output Voltage (V)

Input Voltage (v)

Figure 48. 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 0.59Vdc. To

calculate the value of the trim resistor, Rtrim for a desired

output voltage, use the following equation:

()

−

Rtrim

591.0

182.1

Rtrim is the external resistor in kΩ

Vo is the desired output voltage

Table 2 provides Rtrim values required for some common

output voltages.

Table 2

VO, set (V) Rtrim (KΩ)

0.59 Open

1.0 2.89

1.2 1.941

1.5 1.3

1.8 0.978

2.5 0.619

3.3 0.436

5.0 0.268

6.0 0.219

By using a ±0.5% tolerance trim resistor with a TC of

±25ppm, a set point tolerance of ±1.5% 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 ≥ 130% of Vout at the module output pin.

VO(+)

TRIM+

GND

trim

LOAD

VIN(+)

ON /OFF

Vout

TRIM−

Figure 49. Circuit configuration for programming

output voltage using an external resistor.

Voltage Margining

Output voltage margining can be implemented in the

Naos Raptor 20A modules by connecting a resistor,

Rmargin-up, from the Trim+ pin to the Trim– pin for

margining-up the output voltage and by connecting a

resistor, Rmargin-down, from the Trim+ pin to the output pin

for margining-down. Figure 50 shows the circuit

configuration for output voltage margining. The POL

Programming Tool, available at www.lineagepower.com

under the Design Tools section, also calculates the

values of Rmargin-up and Rmargin-down for a specific output

voltage and % margin. Please consult your local Lineage

Power technical representative for additional details.

Data Sheet

July 11, 2011

Naos Raptor 20A: Non Isolated Power Module:

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current

LINEAGE POWER 15

MODULE

Trim+

Trim-

Rtrim

Rmargin-up

Rmargin-down

Figure 50. Circuit Configuration for margining Output

voltage.

Monotonic Start-up and Shutdown

The Naos Raptor 20A modules have monotonic start-up

and shutdown behavior for any combination of rated input

voltage, output current and operating temperature range.

Tunable LoopTM

The Naos Raptor 20A 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.

51. 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 3 and 4. Table 3 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 5A to 10A step change (50% of full load),

with an input voltage of 12V. Table 4 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 3 and 4.

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. 51. Circuit diagram showing connection of

RTUME and CTUNE to tune the control loop of the

module.

Table 3. Recommended values of RTUNE and CTUNE to

obtain transient deviation of 2% of Vout for a 10A

step load with Vin=12V.

Vout 5V 3.3V 2.5V 1.8V 1.2V 0.69V

Cext 330μF

Polymer

4x47μF

330μF

Polymer

2x47μF

2x330μF

Polymer

6x47μF

3x330μF

Polymer

7x330μF

Polymer

23x330μF

Polymer

RTUNE 75 51 51 51 51 31

CTUNE 100nF 150nF 220nF 330nF 330nF 330nF

ΔV 94mV 66mV 50mV 36mV 24mV 12mV

Table 4. General recommended values of of RTUNE and

CTUNE for Vin=12V and various external ceramic

capacitor combinations.

Cext 2x47μF4x47μF6x47μF 10x47μF 20x47μF30x47μF

RTUNE 75 75 75 51 51 51

CTUNE 15nF 27nF 33nF 47nF 68nF 82nF

Data Sheet

July 11, 2011

Naos Raptor 20A: Non Isolated Power Module:

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current

LINEAGE POWER 16

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

52. The preferred airflow direction for the module is in

Figure 53.

Figure 52. Thermal Test Set-up.

The thermal reference point, Tref used in the

specifications is shown in Figure 53. For reliable

operation this temperatures 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.

Figure 53. Temperature measurement location Tref.

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.

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 Board Mounted Power Modules: Soldering and

Cleaning Application Note.

Through-Hole Lead-Free Soldering

Information

These 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 details.

Air

Flow

Power Module

Wind Tunnel

PWBs

7.24

[0.285]

76.2

[3.0]

Probe Location

for measuring

airflow and

ambient

tem

erature

50.8

[2.00]

Data Sheet

July 11, 2011

Naos Raptor 20A: Non Isolated Power Module:

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current

LINEAGE POWER 17

Mechanical Outline

Dimensions are in inches and (millimeters).

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.)

Front View

Side View

Pin out

Pin Function Pin Function

1 Vout 6 Vin

2 Trim + 7 Sense +

3 GND 8 Sense -

4 PwGood 9 TRIM -

5 On/Off 10 GND

L = 3.30 ± 0.5

[

0.13 ± 0.02

]

Data Sheet

July 11, 2011

Naos Raptor 20A: Non Isolated Power Module:

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current

LINEAGE POWER 18

Recommended Pad Layout

Dimensions are in millimeters and (inches).

Tolerances: x.x mm ± 0.2 mm (x.xx in. ± 0.02 in.) [unless otherwise indicated]

x.xx mm ± 0.12 mm (x.xxx in ± 0.005 in.)

Pin Function Pin Function

1 Vout 6 Vin

2 Trim + 7 Sense +

3 GND 8 Sense -

4 PwGood 9 TRIM -

5 On/Off 10 GND

Data Sheet

July 11, 2011

Naos Raptor 20A: Non Isolated Power Module:

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 20A output current

LINEAGE POWER 19

Document No: DS06-127 ver. 1.11

PDF name: NSR020A0X_ds.pdf

Ordering Information

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

Table 5. Device Codes

Device Code

Input

Voltage Range

Output

Voltage

Output

Current

On/Off

Logic

Connector

Type Comcode

NSR020A0X43Z 4.5 – 13.8Vdc 0.59 – 6Vdc 20 A Positive SIP CC109130911

Table 6. Coding Scheme

Series

generation

Output

Current

Output

voltage

Pin Length On/Off

logic

Sense Default On/Off

Condition

ROHS

Compliance

NSR 020A0 X 4 3 Z

020A0=20A 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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pplication. No rights under any patent accompany the sale of any such product(s) or information.

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