NQR010A0X4Z - GE CRITICAL POWER

Data Sheet

March 7, 2012

NQR010A0X4: Non-Isolated DC-DC Power Modules

4.5Vdc –14Vdc input; 0.59Vdc to 6Vdc Output;10A 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: DS09-011 ver. 1.7

PDF name: NQR010A0X_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 0.59 Vdc to 6Vdc

via external resistor

 Tunable LoopTM to optimize dynamic output voltage

response

 Fixed switching frequency

 Output over current protection (non-latching)

 Over temperature protection

 Remote On/Off

 Small size: 10.4 mm x 16.5 mm x 8.4 mm

(0.41 in x 0.65 in x 0.33 in)

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

 UL* 60950-1Recognized, CSA† C22.2 No. 60950-1-

03 Certified, and VDE‡ 0805:2001-12 (EN60950-1)

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

 Industrial applications

Description

The NQR010A0X4 SIP power modules are non-isolated dc-dc converters in an industry standard package that can

deliver up to 10A of output current with a full load efficiency of 94% at 5Vdc output voltage (VIN = 12Vdc). These

modules operate over a wide range of input voltage (VIN = 4.5Vdc-14Vdc) 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

March 7, 2012

NQR010A0X4: Non-Isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 10A 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 All VIN -0.3 15 Vdc

Continuous

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 14 Vdc

Maximum Input Current All IIN,max 10 Adc

(VIN=4.5V to 14V, IO=IO, max )

Input No Load Current

(VIN = 12Vdc, IO = 0, module ON) VO,set = 0.6 Vdc IIN,No load 29 mA

(VIN = 12Vdc, IO = 0, module ON) VO,set = 5.0Vdc IIN,No load 58 mA

Input Stand-by Current All IIN,stand-by 1.505 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 =0 to

14V, IO= IOmax ; See Test Configurations)

All 34 mAp-p

Input Ripple Rejection (120Hz) All 58 dB

Data Sheet

March 7, 2012

NQR010A0X4: Non-Isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 10A 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 ≥ 2.5Vdc)

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 <2.5Vdc)

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 = 10μF)

Peak-to-Peak (5Hz to 20MHz bandwidth) VO = 0.59Vdc 17 mVpk-pk

Peak-to-Peak (5Hz to 20MHz bandwidth) VO = 1.2Vdc 22 mVpk-pk

Peak-to-Peak (5Hz to 20MHz bandwidth) VO = 1.8Vdc 30 mVpk-pk

Peak-to-Peak (5Hz to 20MHz bandwidth) VO = 2.5Vdc 34 mVpk-pk

Peak-to-Peak (5Hz to 20MHz bandwidth) VO = 3.3Vdc 42 mVpk-pk

Peak-to-Peak (5Hz to 20MHz bandwidth) VO = 5.0Vdc 50 mVpk-pk

Peak-to-Peak (5Hz to 20MHz bandwidth) VO = 6.0Vdc 53 mVpk-pk

External Capacitance1

Without the Tunable LoopTM

ESR ≥ 1 mΩ All CO, max 10 ⎯ 200 μF

With the Tunable LoopTM

ESR ≥ 0.15 mΩ All CO, max 10 ⎯ 1000 μF

ESR ≥ 10 mΩ All CO, max 10 ⎯ 5000 μF

Output Current All Io 0 10 Adc

Output Current Limit Inception (Hiccup Mode ) All IO, lim 200 % Io,max

Output Short-Circuit Current All IO, s/c 0.65 Arms

(VO≤250mV) ( Hiccup Mode )

Efficiency (VIN= 6Vdc) VO,set = 0.59Vdc η 73 %

VIN= 12Vdc, TA=25°C VO, set = 1.2Vdc η 82 %

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

O,set = 1.8Vdc η 87 %

O,set = 2.5Vdc η 90 %

O,set = 3.3Vdc η 92 %

O,set = 5.0Vdc η 94 %

O,set = 6.0Vdc η 95 %

Switching Frequency All fsw ⎯ 600 ⎯ kHz

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 LoopTM section for details.

Data Sheet

March 7, 2012

NQR010A0X4: Non-Isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 10A output current

LINEAGE POWER 4

Electrical Specifications (continued)

Parameter Device Symbol Min Typ Max Unit

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 = 10μF

Peak Deviation All Vpk 280 mV

Settling Time (Vo<10% peak deviation) All ts 40 μs

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

Co = 10μF

Peak Deviation All Vpk 325 mV

Settling Time (Vo<10% peak deviation) All ts 40 μs

General Specifications

Parameter Min Typ Max Unit

Calculated MTBF (VIN=12V, VO=5Vdc, IO=0.8IO, max, TA=40°C) Per

Telcordia Method 6,925,356 Hours

Weight ⎯ 2.5 (0.088) ⎯ g (oz.)

Data Sheet

March 7, 2012

NQR010A0X4: Non-Isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 10A output current

LINEAGE POWER 5

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 mA

Input High Voltage All VIH 1.0 ― V

IN, max V

Logic Low (Module Off)

Input Low Current All IIL ― ― 200 μA

Input Low Voltage All VIL -0.3 ― 0.4 V

Turn-On Delay and Rise Times

(IO=IO, max , VIN = VIN, nom, 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 On/Off input is set enabled (delay from

instant at which On/Off is enabled until Vo=10% of Vo,

set

)

All Tdelay 3 msec

Output voltage Rise time (time for Vo to rise from 10%

of Vo,set to 90% of Vo, set) All Trise 5 msec

Output voltage overshoot 1.5 % VO, set

IO= IO, max; VIN = VIN, min to VIN, max, TA = 25 oC

Overtemperature Protection All Tref 145 ºC

Input Undervoltage Lockout

Turn-on Threshold All 4.25 Vdc

Turn-off Threshold All 3.66 Vdc

Data Sheet

March 7, 2012

NQR010A0X4: Non-Isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 10A output current

LINEAGE POWER 6

Characteristic Curves

The following figures provide typical characteristics for the NQR010 module at 0.6Vout and at 25ºC.

EFFICIENCY, η (%)

0246810

Vin = 4.5V Vin = 9VVin = 6V

OUTPUT CURRENT, Io (A)

25 35 45 55 65 75 85

2m/s

(

400LFM

)

1.5m/s

(300LFM)

1m/s (200LFM)

0.5m/s

(100LFM)

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

OUTPUT

VOLTAGE

IO (A) (5Adiv) VO (V) (500mV/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) (5V/div)

OUTPUT VOLTAGE INPUT VOLTAGE

VO (V) (200mV/div) VIN (V) (5V/div)

TIME, t (2ms/div) TIME, t (2ms/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

March 7, 2012

NQR010A0X4: Non-Isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 10A output current

LINEAGE POWER 7

Characteristic Curves (continued)

The following figures provide typical characteristics for the NQR010 module at 1.2Vout and at 25ºC.

EFFICIENCY, η (%)

0246810

Vin = 4.5V

Vin = 14V

Vin = 12V

OUTPUT CURRENT, Io (A)

25 35 45 55 65 75 85

2m/s

(

400LFM

)

1.5m/s

(300LFM)

1m/s (200LFM)

0.5m/s

(100LFM)

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) (5Adiv) VO (V) (500mV/div)

TIME, t (1μs/div) TIME, t (100μs /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) (5V/div)

OUTPUT VOLTAGE INPUT VOLTAGE

VO (V) (500mV/div) VIN (V) (5V/div)

TIME, t (2ms/div) TIME, t (2ms/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

March 7, 2012

NQR010A0X4: Non-Isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 10A output current

LINEAGE POWER 8

Characteristic Curves (continued)

The following figures provide typical characteristics for the NQR010 module at 1.8Vout and at 25ºC.

EFFICIENCY, η (%)

0246810

Vin = 4.5V

Vin = 14V

Vin = 12V

OUTPUT CURRENT, Io (A)

25 35 45 55 65 75 85

2m/s

(

400LFM

)

1.5m/s

(300LFM)

1m/s (200LFM) 0.5m/s

(100LFM)

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) (5Adiv) VO (V) (500mV/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.

VOLTAGE

VO (V) (500mV/div) VON/OFF (V) (5V/div)

OUTPUT VOLTAGE INPUT VOLTAGE

VO (V) (500mV/div) VIN (V) (5V/div)

TIME, t (2ms/div) TIME, t (2ms/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

March 7, 2012

NQR010A0X4: Non-Isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 10A output current

LINEAGE POWER 9

Characteristic Curves (continued)

The following figures provide typical characteristics for the NQR010 module at 2.5Vout and at 25ºC.

EFFICIENCY, η (%)

100

0246810

Vin = 4.5V Vin = 14VVin = 12V

OUTPUT CURRENT, Io (A)

25 35 45 55 65 75 85

2m/s

(

400LFM

)

1.5m/s

(300LFM)

1m/s

(200LFM)

0.5m/s

(100LFM)

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) (5Adiv) VO (V) (500mV/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) (5V/div)

OUTPUT VOLTAGE INPUT VOLTAGE

VO (V) (1V/div) VIN (V) (5V/div)

TIME, t (2ms/div) TIME, t (2ms/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

March 7, 2012

NQR010A0X4: Non-Isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 10A output current

LINEAGE POWER 10

Characteristic Curves (continued)

The following figures provide typical characteristics for the NQR010 module at 3.3Vout and at 25ºC.

EFFICIENCY, η (%)

100

0246810

Vin = 4.5V Vin = 14VVin = 12V

OUTPUT CURRENT, Io (A)

25 35 45 55 65 75 85

2m/s

(

400LFM

)

1.5m/s

(300LFM)

1m/s

(200LFM)

0.5m/s

(100LFM)

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) (5Adiv) VO (V) (500mV/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.

VOLTAGE

VO (V) (1V/div) VON/OFF (V) (5V/div)

OUTPUT VOLTAGE INPUT VOLTAGE

VO (V) (1V/div) VIN (V) (5V/div)

TIME, t (2ms/div) TIME, t (2ms/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

March 7, 2012

NQR010A0X4: Non-Isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 10A output current

LINEAGE POWER 11

Characteristic Curves (continued)

The following figures provide typical characteristics for the NQR010 module at 5Vout and at 25ºC.

EFFICIENCY, η (%)

100

0246810

Vin = 6.5V Vin = 14VVin = 12V

OUTPUT CURRENT, Io (A)

25 35 45 55 65 75 85

2m/s

(

400LFM

)

1.5m/s

(300LFM)

1m/s

(200LFM)

0.5m/s

(100LFM)

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) (5Adiv) VO (V) (500mV/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) (5V/div)

OUTPUT VOLTAGE INPUT VOLTAGE

VO (V) (2V/div) VIN (V) (5V/div)

TIME, t (2ms/div) TIME, t (2ms/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

March 7, 2012

NQR010A0X4: Non-Isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 10A output current

LINEAGE POWER 12

Characteristic Curves

The following figures provide typical characteristics for the NQR010 module at 6Vout and at 25ºC.

EFFICIENCY, η (%)

100

0246810

Vin = 7.5V Vin = 14VVin = 12V

OUTPUT CURRENT, Io (A)

25 35 45 55 65 75 85

2m/s

(

400LFM

)

1.5m/s

(300LFM)

1m/s

(200LFM)

0.5m/s

(100LFM)

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) (20mV/div)

OUTPUT

CURRENT

OUTPUT

VOLTAGE

IO (A) (5Adiv) VO (V) (500mV/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) (5V/div)

OUTPUT VOLTAGE INPUT VOLTAGE

VO (V) (2V/div) VIN (V) (5V/div)

TIME, t (2ms/div) TIME, t (2ms/div)

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

Io,max).

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

9V, Io = Io,max).

Data Sheet

March 7, 2012

NQR010A0X4: Non-Isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 10A output current

LINEAGE POWER 13

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 NQR010A0X4 10A module should be connected

to a low ac-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 10A of load current with 1x22

µF or 2x22 µF ceramic capacitors and an input of 12V.

Input Ripple Voltage (mVp-p)

100

150

200

250

300

0.511.522.533.544.55

1x22uF

2x22uF

Output Voltage (Vdc)

Figure 46. Input ripple voltage for various output

voltages with 1x22 µF or 2x22 µF ceramic

capacitors at the input (10A load). Input voltage is

12V.

Output Filtering

The NQR010A0X4 10A 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. Figure 47 provides output

ripple information for different external capacitance

values at various Vo and for a load current of 10A. For

stable operation of the module, limit the capacitance to

less than the maximum output capacitance as specified

in the electrical specification table. Optimal

Data Sheet

March 7, 2012

NQR010A0X4: Non-Isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 10A output current

LINEAGE POWER 14

performance of the module can be achieved by using

the Tunable LoopTM feature described later in this data

sheet.

0.511.522.533.544.55

Output Voltage (Volts)

Ripple (mVp-p)

1x10uF External Cap

1x47uF External Cap

2x47uF External Cap

4x47uF External Cap

Figure 47. Output ripple voltage for various output

voltages with external 1x10 µF, 1x47 µF, 2x47 µF or

4x47 µF ceramic capacitors at the output (10A load).

Input voltage is 12V.

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 2nd Edition, CSA C22.2 No. 60950-1-

07, and VDE 0805-1+A11:2009-11 (DIN EN60950-1

2nd Edition) 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.

A 15A quick acting input fuse for the module is

required.

Feature Descriptions

Remote On/Off

The NQR010A0X4 10A power modules feature an

On/Off pin with positive logic for remote On/Off

operation. If the On/Off pin is not being used, 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.

ON/OFF

VIN

GND

MODULE

ENABLE

100K

2.2K

47K

2.2K

47K

10K 30.1K

Figure 48. 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 average output current during hiccup is 10%

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, the module operation is disabled. The module will

begin to operate at an input voltage above the

undervoltage lockout turn-on threshold.

Data Sheet

March 7, 2012

NQR010A0X4: Non-Isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 10A output current

LINEAGE POWER 15

Feature Descriptions (continued)

Output Voltage Programming

The output voltage of the NQR010A0X4 10A module

can be programmed to any voltage from 0.59dc to 6Vdc

by connecting a resistor between the Trim+ and GND

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. 49. 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 3.3V and higher, the input voltage needs to

be larger than the minimum of 4.5V.

0.511.522.533.544.555.56

Output Voltage (V)

Input Voltage (v)

Figure 49. 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 GND

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 1 provides Rtrim values required for some

common output voltages.

Table 1

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.

VO(+)

TRIM

GND

trim

LOAD

VIN(+)

ON/OFF

Vout

Figure 50. Circuit configuration for programming

output voltage using an external resistor.

Voltage Margining

Output voltage margining can be implemented in the

NQR010A0X4 10A modules by connecting a resistor,

Rmargin-up, from the Trim pin to the ground pin for

margining-up the output voltage and by connecting a

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

margining-down. Figure 51 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 Field Application Engineer or Account

Manager for additional details.

Data Sheet

March 7, 2012

NQR010A0X4: Non-Isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 10A output current

LINEAGE POWER 16

Feature Descriptions (continued)

MODULE

GND

Trim

Rtrim

Rmargin-up

Rmargin-down

Figure 51. Circuit Configuration for margining

Output voltage.

Monotonic Start-up and Shutdown

The NQR010A0X4 10A modules have monotonic start-

up and shutdown behavior for any combination of rated

input voltage, output current and operating temperature

range.

Tunable LoopTM

The NQR010A0X4 10A 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 VOUT and TRIM pins of the module, as shown in

Fig. 52. 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 5A to 10A 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.

MODULE

TRIM

VOUT

GND

RTUNE

CTUNE

RTrim

Figure. 52. 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 5A

step load with Vin=12V.

Vout 5V 3.3V 2.5V 1.8V 1.2V 0.6V

Cext 4x47μF330μF

Polymer

330μF

Polymer

2x330μF

Polymer

3x330μF

Polymer

9x330μF

Polymer

RTUNE 47 47 47 47 47 30

CTUNE 39nF 100nF 100nF 220nF 220nF 330nF

ΔV 76mV 39mV 39mV 25mV 22mV 12mV

Table 3. General recommended values of of RTUNE

and CTUNE for Vin=12V and various external ceramic

capacitor combinations.

Cext 1x47μF2x47μF4x47μF 6x47μF 10x47μF20x47μF

RTUNE 100 75 47 47 47 47

CTUNE 12nF 22nF 39nF 56n 68nF 100nF

Data Sheet

March 7, 2012

NQR010A0X4: Non-Isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 10A output current

LINEAGE POWER 17

Thermal Considerations

Power modules operate in a variety of thermal

environments; however, sufficient cooling should 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 53. The preferred airflow direction

for the module is in Figure 54.

Figure 53. Thermal Test Set-up.

The thermal reference point, Tref used in the

specifications of thermal derating curves is shown in

Figure 54. For reliable operation this temperature

should not exceed 125oC.

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 54. Tref Temperature measurement location.

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 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

March 7, 2012

NQR010A0X4: Non-Isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 10A output current

LINEAGE POWER 18

Mechanical Outline

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.)

Pin out

Pin Function

1 On/Off

2 VIN

3 GND

4 Vout

5 Trim+

Rear View Side View

Data Sheet

March 7, 2012

NQR010A0X4: Non-Isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 10A output current

LINEAGE POWER 19

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.)

Data Sheet

March 7, 2012

NQR010A0X4: Non-Isolated DC-DC Power Modules

4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 10A output current

LINEAGE POWER 20

Document No: DS009-011 ver. 1.7

PDF name: NQR010A0X_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 Comcodes

NQR010A0X4Z 4.5 – 14Vdc 0.59 – 6Vdc 10A Positive SIP CC109153012

NQR010A0X54Z 4.5 – 14Vdc 0.59 – 6Vdc 10A Positive SIP CC109160090

X4 refers to pin length of 3.29mm

X54 refers to pin length of 5.08mm

Z refers to RoHS-compliant versions

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: techsupport1@lineagepower.com

Asia-Pacific Headquarters

Tel: +86.021.54279977*808

Europe, Middle-East and Africa Headquarters

Tel: +49.89.878067-280

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

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.