GE Industrial Solutions 2A DLynx User Manual

GE Energy

2A DLynxTM: Non-Isolated DC-DC Power Modules

3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current

Features

RoHS Compliant

Applications

 Distributed power architectures

 Intermediate bus voltage applications

 Telecommunications equipment

 Servers and storage applications

 Networking equipment

 Industrial equipment

Vin+ Vout+

VIN

PGOOD

MODULE

Cin

ON/OFF

Q1

GND

VOUT

SENSE

TRIM

RTUNE

CTUNE

RTrim

Co

 Compliant to RoHS II EU “Directive 2011/65/EU”

 Compliant to IPC-9592 (September 2008), Category 2,

Class II

 Compatible in a Pb-free or SnPb reflow environment (Z

versions)

 Wide Input voltage range (3Vdc-14Vdc)

 Output voltage programmable from 0.6Vdc to 5.5Vdc via

external resistor.

 Tunable Loop

TM

response

 Power Good signal

 Fixed switching frequency

 Output overcurrent protection (non-latching)

 Over temperature protection

 Remote On/Off

 Ability to sink and source current

 Cost efficient open frame design

 Small size:12.2 mm x 12.2 mm x 4.5 mm

(0.48 in x 0.48 in x 0.18 in)

 Wide operating temperature range [-40°C to 105°C]

 Ruggedized (-D) version able to withstand high levels of

shock and vibration

 UL* 60950-1 2

60950-1-07 Certified, and VDE
Licensed

 ISO** 9001 and ISO 14001 certified manufacturing

facilities

Datasheet

to optimize dynamic output voltage

nd

Ed. Recognized, CSA† C22.2 No.

‡

(EN60950-1 2nd Ed.)

Description

The 2A DLynxTM power modules are non-isolated dc-dc converters that shall deliver up to 2A of output current.
These modules shall operate over a wide range of input voltage (V
output voltage from 0.6Vdc to 5.5Vdc, programmable via an external resistor. Features remote On/Off, adjustable
output voltage, over current and over temperature protection. The module shall also include the Tunable Loop
feature that allows the user to optimize the dynamic response of the converter to match the load with reduced
amount of output capacitance leading to savings on cost and PWB area.

* 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

June 24, 2013 ©2012 General Electric Company. All rights reserved.

= 3Vdc-14Vdc) and provide a precisely regulated

IN

TM

GE Energy

Datasheet

2A DLynxTM: Non-Isolated DC-DC Power Modules

3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A 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

Input Voltage All V

Continuous

Operating Ambient Temperature All T

(see Thermal Considerations section)

Storage Temperature All T

IN

A

stg

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 3.0

Maximum Input Current All I

(VIN=3V to 14V, IO=I

Input No Load Current

= 12.0Vdc, IO = 0, module enabled)

(V

IN

Input Stand-by Current
(V

= 12.0Vdc, module disabled)

IN

Inrush Transient All I2t 1 A2s

Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 1μH source impedance; V
14V

= I

; See Test Configurations)

, IO

Omax

Input Ripple Rejection (120Hz) All -65 dB

)

O, max

= 0.6 Vdc I

V

O,set

V

= 5.5Vdc I

O,set

All I

= 0 to

IN

All 10 mAp-p

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 an integrated part
of sophisticated power architecture. To preserve maximum flexibility, internal fusing is not included; however, to achieve maximum
safety and system protection, always use an input line fuse. The safety agencies require a fast-acting fuse with a maximum rating
of 4A (see Safety Considerations section) in the positive input lead. 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.

IN,max

IN,No load

30 mA

IN,No load

8 mA

IN,stand-by

-0.3 15 Vdc

-40 85 °C

-55 125 °C

⎯

1.8A Adc

20 mA

14.0 Vdc

June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 2

p

GE Energy

Datasheet

2A DLynxTM: Non-Isolated DC-DC Power Modules

3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current

Electrical Specifications (continued)

Parameter Device

Output Voltage Set-point (with 0.5% tolerance for external
resistor used to set output voltage)

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

All V

All V

Adjustment Range (selected by an external resistor)
(Some output voltages may not be possible depending on the

All V

input voltage – see Feature Descriptions Section)

Remote Sense Range All 0.5 Vdc

Output Regulation (for VO ≥ 2.5Vdc)

Line (VIN=V

Load (IO=I

IN, min

O, min

to V

) All

IN, max

to I

) All

O, max

Output Regulation (for VO < 2.5Vdc)

Line (VIN=V

Load (IO=I

Temperature (T

IN, min

O, min

to V

) All

IN, max

to I

) All

O, max

to T

ref=TA, min

) All

A, max

Output Ripple and Noise on nominal output

(VIN=V
ca

IN, nom

acitors)

and IO=I

O, min

to I

Co = 0.1μF // 10 μF ceramic

O, max

Peak-to-Peak (5Hz to 20MHz bandwidth) All

RMS (5Hz to 20MHz bandwidth) All 10 20 mV

External Capacitance1

Without the Tunable Loop

TM

ESR ≥ 1 mΩ All C

With the Tunable Loop

TM

ESR ≥0.15 mΩ All

ESR ≥ 10 mΩ All

Output Current (in either sink or source mode) All I

Output Current Limit Inception (Hiccup Mode)
(current limit does not operate in sink mode)

All I

Output Short-Circuit Current All I

(VO≤250mV) ( Hiccup Mode )

Efficiency V

VIN= 12Vdc, TA=25°C V

IO=I

O, max , VO

= V

V

O,set

V

V

V

= 0.6Vdc η 69.3 %

O,set

= 1.2Vdc η

O, set

= 1.8Vdc η

O,set

= 2.5Vdc η

O,set

= 3.3Vdc η

O,set

= 5.0Vdc η

O,set

Switching Frequency All f

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 Loop

TM

section for details.

Symb

O, set

O, set

O

O

C

O,

C

O,

o

O, lim

O, s/c

sw

Min Typ Max Unit

-1.5 +1.5 % V

-2.5

⎯

+2.5 % V

0.6 5.5 Vdc

+0.4 % V

⎯

⎯

⎯

⎯

⎯

30 60 mV

⎯

10 mV

10 mV

5 mV

1 % V

22

22

22

⎯

⎯

⎯

47 μF

1000 μF

3000 μF

0 2 Adc

180 % I

140 mA

⎯

82.2

87.4

89.4

91.9

93.8

600

%

%

%

%

%

⎯

kHz

O, set

O, set

O, set

O, set

pk-pk

rms

o,max

June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 3

GE Energy

Datasheet

2A DLynxTM: Non-Isolated DC-DC Power Modules

3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current

General Specifications

Parameter Device Min Typ Max Unit

Calculated MTBF (IO=0.8I
Case 3

Weight

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=V

Signal referenced to GND)

Device Code with no suffix – Negative Logic (See Ordering
Information)

(On/OFF pin is open collector/drain logic input with

external pull-up resistor; signal referenced to GND)

Logic High (Module OFF)

Input High Current All IIH — — 1 mA

Input High Voltage All VIH 3 — V

Logic Low (Module ON)

Input low Current All IIL — — 10 μA

Input Low Voltage All VIL -0.2 — 0.3 Vdc

Turn-On Delay and Rise Times

(VIN=V
Case 1: On/Off input is enabled and then input power is

applied (delay from instant at which V
10% of V

Case 2: Input power is applied for at least one second and
then the On/Off input is enabled (delay from instant at
which Von/Off is enabled until V

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

Output voltage overshoot (TA = 25oC 3.0 % V
VIN= V
With or without maximum external capacitance

Over Temperature Protection All T

(See Thermal Considerations section)

IN, min

IN, nom

IN, min

to V

, IO=I

o, set)

to V

IN, max

O, max , VO

IN, max,IO

, TA=40°C) Telecordia Issue 2 Method 1

O, max

APXS 26,121,938 Hours

⎯

0.8 (0.0282)

⎯

g (oz.)

; open collector or equivalent,

Vdc

IN, max

to within ±1% of steady state)

= V

IN, min

until Vo =

IN

All Tdelay — 5 — msec

All Tdelay — 5.2 — msec

o = 10% of Vo, set)

All Trise

= I

to I

O, min

)

O, max

ref

— 1.4 — msec

140 °C

O, set

June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 4

GE Energy

Datasheet

2A DLynxTM: Non-Isolated DC-DC Power Modules

3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current

Feature Specifications (cont.)

Parameter Device Symbol Min Typ Max Units

Input Undervoltage Lockout

Turn-on Threshold All

Turn-off Threshold All

Hysteresis All

PGOOD (Power Good)

Signal Interface Open Drain, V

Overvoltage threshold for PGOOD

Undervoltage threshold for PGOOD

Pulldown resistance of PGOOD pin All

supply

≤ 5VDC

2.95 Vdc

2.8 Vdc

0.2 Vdc

112.5 %V

87.5 %V

30 70

Ω

O, set

O, set

June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 5

OUTPUT

CURRENT

OUTPUT

VOLTAGE

OUTPUT

VOLTAGE

ON/OFF

VOLTAGE

GE Energy

2A DLynxTM: Non-Isolated DC-DC Power Modules

3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current

Characteristic Curves

The following figures provide typical characteristics for the PNVX002A0X-SRZ (0.6V, 2A) at 25oC.

90

85

80

75

Vin=3V

70

65

EFFICIENCY, η (%)

60

55

0 0.4 0.8 1.2 1.6 2

Vin=12V

Vin=14V

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

Figure 1. Converter Efficiency versus Output Current.

2.1

1.9

1.7

OUTPUT CURRENT, Io (A)

1.5
45 55 65 75 85

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

Datasheet

NC

(V) (20mV/div)

O

V

OUTPUT VOLTAGE

TIME, t (2μs/div) TIME, t (500μs /div)

Figure 3. Typical output ripple and noise (V

(V) (5V/div)

ON/OFF

(V) (200mV/div) V

O

V

TIME, t (5ms/div) TIME, t (5ms/div)

IN = 12V, Io = Io,max).

(V) (100mV/div)

O

,

(A) (1Adiv) V

O

I

Figure 4. Transient Response to Dynamic Load Change
from 0% to 50% to 0% .

(V) (5V/div)

IN

(V) (200mV/div) V

O

OUTPUT VOLTAGE INPUT VOLTAGE

V

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

Vin=12V,Cext= 22uF).

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

o,max).

= I

IN = 12V, Io

June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 6

OUTPUT

CURRENT

OUTPUT

VOLTAGE

OUTPUT

VOLTAGE

ON/OFF

VOLTAGE

GE Energy

2A DLynxTM: Non-Isolated DC-DC Power Modules

3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current

Characteristic Curves

The following figures provide typical characteristics for the PNVX002A0X-SRZ (1.2V, 2A) at 25oC.

00

95

90

85

Vin=3V

80

75

EFFICIENCY, η (%)

70

65

00.40.81.21.62

Vin=12V

Vin=14V

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

Figure 7. Converter Efficiency versus Output Current.

2.1

1.9

1.7

OUTPUT CURRENT, Io (A)

1.5
45 55 65 75 85

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

Datasheet

NC

(V) (20mV/div)

O

V

OUTPUT VOLTAGE

TIME, t (2μs/div) TIME, t (500μs /div)

Figure 9. Typical output ripple and noise (V

o,max).

I

(V) (5V/div)

ON/OFF

(V) (500mV/div) V

O

V

TIME, t (5ms/div) TIME, t (5ms/div)

IN = 12V, Io =

(V) (100mV/div)

O

,

(A) (1Adiv) V

O

I

Figure 10. Transient Response to Dynamic Load Change from
0% to 50% to 0%.

(V) (5V/div)

IN

(V) (500mV/div) V

O

OUTPUT VOLTAGE INPUT VOLTAGE

V

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

Vin=12V,Cext= 22uF).

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

22uF, Io = Io,max).

Cext=

IN = 12V,

June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 7

OUTPUT

CURRENT

OUTPUT

VOLTAGE

GE Energy

2A DLynxTM: Non-Isolated DC-DC Power Modules

3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current

Characteristic Curves

The following figures provide typical characteristics for the PNVX002A0X-SRZ (1.8V, 2A) at 25oC.

00

95

Vin=12V

Vin=14V

EFFICIENCY, η (%)

90

85

80

75

70

Vin=3V

0 0.4 0.8 1.2 1.6 2

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

Figure 13. Converter Efficiency versus Output Current.

2.1

1.9

1.7

OUTPUT CURRENT, Io (A)

1.5
45 55 65 75 85

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

Datasheet

NC

(V) (20mV/div)

O

V

OUTPUT VOLTAGE

TIME, t (2μs/div) TIME, t (500μs /div)

Figure 15. Typical output ripple and noise (V

o,max).

I

(V) (5V/div)

ON/OFF

(V) (500mV/div) V

O

OUTPUT VOLTAGE ON/OFF VOLTAGE

V

TIME, t (5ms/div) TIME, t (5ms/div)

IN = 12V, Io =

(V) (100mV/div)

O

,

(A) (1Adiv) V

O

I

Figure 16. Transient Response to Dynamic Load Change
from 0% to 50% to 0%.

(V) (5V/div)

IN

(V) (500mV/div) V

O

OUTPUT VOLTAGE INPUT VOLTAGE

V

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

in=12V,Cext= 22uF,).

V

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

22uF, Io = Io,max).

Cext=

IN = 12V,

June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 8

OUTPUT

CURRENT

OUTPUT

VOLTAGE

GE Energy

2A DLynxTM: Non-Isolated DC-DC Power Modules

3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current

Characteristic Curves

The following figures provide typical characteristics for the PNVX002A0X-SRZ (2.5V, 2A) at 25oC.

100

95

90

85

80

EFFICIENCY, η (%)

75

70

Vin=3.3V

0 0.4 0.8 1.2 1.6 2

Vin=12V

Vin=14V

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

Figure 19. Converter Efficiency versus Output Current.

2.1

1.9

1.7

OUTPUT CURRENT, Io (A)

1.5
45 55 65 75 85

Figure 20. Derating Output Current versus Ambient
Temperature and Airflow.

Datasheet

NC

(V) (20mV/div)

O

V

OUTPUT VOLTAGE

TIME, t (2μs/div) TIME, t (500μs /div)

Figure 21. Typical output ripple and noise (V

o,max).

I

(V) (5V/div)

ON/PFF

(V) (1V/div) V

O

OUTPUT VOLTAGE ON/OFF VOLTAGE

V

TIME, t (5ms/div) TIME, t (5ms/div)

IN = 12V, Io =

(V) (100mV/div)

O

,

(A) (1Adiv) V

O

I

Figure 22. Transient Response to Dynamic Load Change
from 0% to 50% to 0%.

(V) (5V/div)

IN

(V) (1V/div) V

O

OUTPUT VOLTAGE INPUT VOLTAGE

V

Figure 23. Typical Start-up Using On/Off Voltage (Io = Io,max,

in=12V,Cext= 22uF ).

V

Figure 24. Typical Start-up Using Input Voltage (V

22 uF, Io = Io,max).

Cext=

IN = 12V,

June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 9

OUTPUT

CURRENT

OUTPUT

VOLTAGE

GE Energy

2A DLynxTM: Non-Isolated DC-DC Power Modules

3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current

Characteristic Curves

The following figures provide typical characteristics for the PNVX002A0X-SRZ (3.3V, 2A) at 25oC.

100

95

90

Vin=4.5V

85

80

EFFICIENCY, η (%)

75

70

0 0.4 0.8 1.2 1.6 2

Vin=12V

Vin=14V

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

Figure 25. Converter Efficiency versus Output Current.

2.1

1.9

1.7

OUTPUT CURRENT, Io (A)

1.5
45 55 65 75 85

Figure 26. Derating Output Current versus Ambient
Temperature and Airflow.

Datasheet

NC

(V) (20mV/div)

O

V

OUTPUT VOLTAGE

TIME, t (1μs/div) TIME, t (500μs /div)

Figure 27. Typical output ripple and noise (V

o,max).

I

(V) (5V/div)

ON?OFF

(V) (1V/div) V

O

OUTPUT VOLTAGE ON/OFF VOLTAGE

V

TIME, t (5ms/div) TIME, t (5ms/div)

IN = 12V, Io =

(V) (100mV/div)

O

,

(A) (1Adiv) V

O

I

Figure 28. Transient Response to Dynamic Load Change
from 0% to 50% to 0%.

(V) (5V/div)

IN

(V) (1V/div) V

O

OUTPUT VOLTAGE INPUT VOLTAGE

V

Figure 29. Typical Start-up Using On/Off Voltage (Io = Io,max,

in=12V,Cext= 22uF)

V

Figure 30. Typical Start-up Using Input Voltage (V

22 uF, Io = Io,max).

Cext=

IN = 12V,

June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 10

OUTPUT

CURRENT

OUTPUT

VOLTAGE

GE Energy

2A DLynxTM: Non-Isolated DC-DC Power Modules

3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current

Characteristic Curves

The following figures provide typical characteristics for the PNVX002A0X-SRZ (5V, 2A) at 25oC.

100

95

90

85

80

EFFICIENCY, η (%)

75

70

0 0.4 0.8 1.2 1.6 2

Vin=12V

Vin=14V

Vin=6.5V

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

Figure 31. Converter Efficiency versus Output Current.

2.1

1.9

1.7

OUTPUT CURRENT, Io (A)

1.5
45 55 65 75 85

Figure 32. Derating Output Current versus Ambient
Temperature and Airflow.

Datasheet

NC

(V) (20mV/div)

O

V

OUTPUT VOLTAGE

TIME, t (2μs/div) TIME, t (500μs /div)

Figure 33. Typical output ripple and noise (V

o,max).

I

(V) (5V/div)

ON/OFF

(V) (2V/div) V

O

OUTPUT VOLTAG E ON/OFF VOLTAGE

V

TIME, t (5ms/div) TIME, t (5ms/div)

IN = 12V, Io =

(V) (100mV/div)

O

,

(A) (1Adiv) V

O

I

Figure 34. Transient Response to Dynamic Load Change
from 0% to 50% to 0%.

(V) (5V/div)

IN

OUTPUT VOLTAGE INPUT VOLTAGE

Vo (V) (2V/div) V

Figure 35. Typical Start-up Using On/Off Voltage (Io = Io,max,

Vin=12V,Cext= 22uF).

Figure 36. Typical Start-up Using Input Voltage (V

o = Io,max, Cext= 22uF).

I

IN = 12V,

June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 11

GE Energy

2A DLynxTM: Non-Isolated DC-DC Power Modules

3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current

Test Configurations

TO OSCILLOSCOPE

L

TEST

1μH

CS 1000μF

BATTERY

NOTE: Measure input reflected ripple current with a simulated

Electrolytic

E.S.R.<0.1Ω

@ 20°C 100kHz

source induc tance (L
possible battery impedance. Measure current as shown
above.

) of 1μH. Capacit or CS offsets

TEST

Figure 37. Input Reflected Ripple Current Test Setup.

COPPER STRIP

Vo+

0.1uF

COM

GROUND PLANE

NOTE : All volt age measurem ents to be t aken at the module

termin als, as shown ab ove. If soc kets are use d then
Kelvin connections are required at the module terminals
to av oid me asur ement er rors due to socket contac t
resistance.

Figure 38. Output Ripple and Noise Test Setup.

R

R

contact

distribution

R

R

contact

distribution

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

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

VIN(+)

V

IN

COM

Figure 39. Output Voltage and Efficiency Test Setup.

V

. I

O

Efficiency

=

η

VIN. I

O

IN

10uF

V

O

COM

2x100μF
Tantalum

CURRENT PROBE

CIN

SCO PE U SIN G
BNC SOC KET

R

contact Rdistribution

V

O

R

contact Rdistribution

x 100 %

VIN(+)

COM

RESISTIVE
LOAD

R

LOAD

Design Considerations

Input Filtering

The 12V DLynxTM 2A 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, ceramic capacitors
are recommended at the input of the module. Figure
40 shows the input ripple voltage for various output
voltages at 2A of load current with 1x10 µF or 1x22 µF
ceramic capacitors and an input of 5V. Figure 41
shows the input ripple voltage for an input of 12V

90

80

70

60

50

40

30

Input Ripple Voltage (mVp-p)

20

0.5 1 1.5 2 2.5 3 3.5

Output Voltage (Vdc)

Figure 40. Input ripple voltage for various output
voltages with 1x10 µF or 1x22 µF ceramic capacitors
at the input (2A load). Input voltage is 5V. Scope BW:
20MHz.

110

100

90

80

70

60

50

40

30

Input Ripple Voltage (mVp-p)

20

0.5 1 1.5 2 2.5 3 3 .5 4 4.5 5

Output Voltage (Vdc)

Figure 41. Input ripple voltage for various output
voltages with 1x10 µF or 1x22 µF ceramic capacitors
at the input (2A load). Input voltage is 12V. Scope BW:
20MHz

Datasheet

1x10uF

1x22uF

1x10uF

1x22uF

June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 12

GE Energy

2A DLynxTM: Non-Isolated DC-DC Power Modules

3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current

Output Filtering

The 12V DLynxTM 2A modules are designed for low output ripple
voltage and will meet the maximum output ripple specification
with 0.1 µF ceramic and 22µF ceramic capacitors at the output
of the module. 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 polymer and ceramic capacitors are
recommended to improve the dynamic response of the
module. A minimum 22uF External Cap must be used. Figure
42 provides output ripple information for different external
capacitance values at various Vo and for a load current of 2A.
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 Loop
described later in this data sheet.

TM

feature

The input to these units is to be provided with a slow­blow fuse with a maximum rating of 4A in the positive
input lead

.

Datasheet

14

12

10

8

6

Ripple(m Vp-p)

4

2

0

0.51.52.53.54.5

Output Voltage(Volts)

Figure 42. Output ripple voltage for various output voltages
with external 1x22 µF, 1x47 µF or 2x47 µF ceramic capacitors
at the output (2A load). Input voltage is 12V.

1x22uF External Cap
1x47uF External Cap
2x47uF External cap

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, CSA C22.2 No. 60950-1-07, DIN EN 60950-1:2006
+ A11 (VDE0805 Teil 1 + A11):2009-11; EN 60950-1:2006 +
A11:2009-03.

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.

June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 13

GE Energy

2A DLynxTM: Non-Isolated DC-DC Power Modules

3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current

Feature Descriptions

Remote Enable

The 12V DLynxTM 2A power modules feature an On/Off pin for
remote On/Off operation. Two On/Off logic options are
available. In the Positive Logic On/Off option, (device code
suffix “4” – see Ordering Information), the module turns ON
during a logic High on the On/Off pin and turns OFF during a
logic Low. With the Negative Logic On/Off option, (no device
code suffix, see Ordering Information), the module turns OFF
during logic High and ON during logic Low. The On/Off signal is
always referenced to ground. For either On/Off logic option,
leaving the On/Off pin disconnected will turn the module ON
when input voltage is present.

For positive logic modules, the circuit configuration for using
the On/Off pin is shown in Figure 43. Contact GE Energy
regarding availability of positive logic module

VIN+

Rpullup

I

GND

ON/OFF

V

ON/OFF

Q1

+

_

ON/O FF

Figure 43. Circuit configuration for using positive On/Off
logic.

For negative logic On/Off modules, the circuit configuration is
shown in Fig. 44.

MOD UL E

50K

10K

10K

50K

PWM Enable

10K

Q2

Q3

10K

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.

Overtemperature Protection

To provide protection in a fault condition, the unit is
equipped with a thermal shutdown circuit. The unit will
shutdown if the overtemperature threshold of 140
exceeded at the thermal reference point T
thermal shutdown is not intended as a guarantee that
the unit will survive temperatures beyond its rating.
Once the unit goes into thermal shutdown it will then
wait to cool before attempting to restart.

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.

Output Voltage Programming

The output voltage of the 12V DLynxTM 2A modules can
be programmed to any voltage from 0.6dc to 5.5Vdc 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. 45. The Lower Limit curve shows
that for output voltages of 2.4V and higher, the input
voltage needs to be larger than the minimum of 3V.

Datasheet

ref

. The

o

C is

VIN +

ON/OFF

GND

Rpullup

I

ON/OFF

+

V

ON/OFF

Q1

_

MODULE

PWM Enable

Q2

10K

10K

Figure 44. Circuit configuration for using negative On/Off
logic.

16

14

12

10

8

6

Input Voltage (v)

4

2

0

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

Output Voltage (V)

Figure 45. 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 0.6Vdc. To calculate the
value of the trim resistor, Rtrim for a desired output
voltage, use the following equation:

June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 14

GE Energy

2A DLynxTM: Non-Isolated DC-DC Power Modules

3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current

Rtrim

Rtrim is the external resistor in kΩ

Vo is the desired output voltage.

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



()

Vo





= k



0.6

−

Ω



6.0



Table 1

V

(V) Rtrim (KΩ)

O, set

1.0 15

1.2 10

1.5 6.67

1.8 5

2.5 3.16

3.3 2.22

5.0 1.36

By using a ±0.5% tolerance trim resistor with a TC of ±100ppm,
a set point tolerance of ±1.5% can be achieved as specified in
the electrical specification.

Please consult your local GE Energy technical
representative for additional details.

Figure 47. Circuit Configuration for margining Output
voltage.

MODULE

Datasheet

Vo

Rmargin-down

Q2

Trim

Rmargin-up

Rtrim

Q1

GND

Remote Sense

The 12V DLynxTM 2A power modules have a Remote Sense
feature to minimize the effects of distribution losses by
regulating the voltage at the SENSE pin. The voltage between
the SENSE pin and VOUT pin must not exceed 0.5V. Note that
the output voltage of the module cannot exceed the specified
maximum value. This includes the voltage drop between the
SENSE and Vout pins. When the Remote Sense feature is not
being used, connect the SENSE pin to the VOUT pin.

GND

VO(+)

SEN SE

TRIM

LOA D

R

tri m

VIN(+)

ON/OFF

Figure 46. Circuit configuration for programming output
voltage using an external resistor.

Voltage Margining

Output voltage margining can be implemented in the 12V

TM

2A modules by connecting a resistor, R

DLynx
the Trim pin to the ground pin for margining-up the output
voltage and by connecting a resistor, R
pin to output pin for margining-down. Figure 10 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 R
and R

margin-down

for a specific output voltage and % margin.

margin-down

, from

margin-up

, from the Trim

margin-up

June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 15

V

V

V

GE Energy

2A DLynxTM: Non-Isolated DC-DC Power Modules

3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current

Monotonic Start-up and Shutdown

The 12V DLynx
shutdown behavior for any combination of rated input voltage,
output current and operating temperature range.

TM

2A modules have monotonic start-up and

Startup into Pre-biased Output

The 12V DLynxTM 2A modules can start into a prebiased output
as long as the prebias voltage is 0.5V less than the set output
voltage.

Power Good

The 12V DLynx
signal that is implemented with an open-drain output to
indicate that the output voltage is within the regulation limits of
the power module. The PGOOD signal will be de-asserted to a
low state if any condition such as overtemperature, overcurrent
or loss of regulation occurs that would result in the output
voltage going ±12.5% outside the setpoint value. The PGOOD
terminal should be connected through a pullup resistor
(suggested value 100KΩ) to a source of 5VDC or lower.

Tunable Loop

The 12V DLynxTM 2A modules have a new feature that
optimizes transient response of the module called Tunable

TM

Loop
External capacitors are usually added to the output of the
module for two reasons: to reduce output ripple and noise (see
Fig. 42) and to reduce output voltage deviations from the
steady-state value in the presence of dynamic load current
changes. 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.

The Tunable Loop
voltage control loop to match the filter network connected to
the output of the module. The Tunable Loop
by connecting a series R-C between the SENSE and TRIM pins of
the module, as shown in Fig. 48. This R-C allows the user to
externally adjust the voltage loop feedback compensation of
the module.

TM

2A modules provide a Power Good (PGOOD)

TM

.

TM

allows the user to externally adjust the

TM

is implemented

VOUT

SENSE

RTUNE

MODULE

C O

CTUNE

TRIM

GND

Figure. 48. Circuit diagram showing connection of R

to tune the control loop of the module.

C

TUNE

RTrim

TUME

and

Recommended values of R
output capacitor combinations are given in Tables 2 and

3. Table 2 shows the recommended values of R
for different values of ceramic output capacitors up

C

TUNE

to 470uF that might be needed for an application to
meet output ripple and noise requirements. Selecting

and C

R

TUNE

TUNE

operation of the module.

In applications with tight output voltage limits in the
presence of dynamic current loading, additional output
capacitance will be required. Tables 3,4 and 5 list
recommended values of R
2% output voltage deviation limits for some common
output voltages in the presence of a 1A to 2A step
change (50% of full load), for input voltages of 12V, 5V
and 3.3V respectively.

Please contact your GE Energy technical representative
to obtain more details of this feature as well as for
guidelines on how to select the right value of external R­C to tune the module for best transient performance and
stable operation for other output capacitance values or
input voltages other than 12V.

Table 2. General recommended values of of R

for Vin=12V/5V/3.3V and various external

C

TUNE

ceramic capacitor combinations.

Co

1x47μF 2x47μF 3x47μF 4x47μF 10x47μF

R

TUNE

C

3900pF 10nF 18nF 18nF 22nF

TUNE

Table 3. Recommended values of R
obtain transient deviation of ≤2% of Vout for a 1A step
load with Vin=12V

o 5V 3.3V 2.5V 1.8V 1.2V 0.6

Co

1x22μF1x47μF2x47μF 2x47μF 3x47μF

R

220 220 150 150 100 100

TUNE

C

2200pF 3900pF 10nF 10nF 18nF 68nF

TUNE

81mV 61mV 35mV 34mV 23mV 12mV

ΔV

Table 4. Recommended values of R
obtain transient deviation of ≤2% of Vout for a 1A step
load with Vin=5V

o 3.3V 2.5V 1.8V 1.2V 0.6V

Co

1x47μF2x47μF2x47μF 3x47μF

R

220 150 150 100 100

TUNE

C

3900pF 10nF 10nF 18nF 68nF

TUNE

62mV 35mV 34mV 23mV 12mV

ΔV

Datasheet

and C

TUNE

according to Table 2 will ensure stable

and C

TUNE

220 150 100 100 100

for different

TUNE

in order to meet

TUNE

TUNE

and C

TUNE

TUNE

and C

330μF

Polymer

TUNE

TUNE

TUNE

and

and

to

330μF

Polymer

to

June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 16

GE Energy

2A DLynxTM: Non-Isolated DC-DC Power Modules

3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current

Table 5. Recommended values of R
transient deviation of ≤2% of Vout for a 1A step load with
Vin=3.3V

Vo 2.5V 1.8V 1.2V 0.6V

Co

3x47μF 2x47μF 3x47μF

R

C

ΔV

100 150 100 100

TUNE

18nF 10nF 18nF 68nF

TUNE

48mV 34mV 23mV 12mV

TUNE

and C

330μF

Polymer

TUNE

to obtain

Datasheet

June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 17

Air

GE Energy

2A DLynxTM: Non-Isolated DC-DC Power Modules

3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current

Thermal Considerations

Power modules operate in a variety of thermal environments;
however, sufficient cooling should always be provided to help
ensure reliable operation.

Considerations include ambient temperature, airflow, module
power dissipation, and the need for increased reliability. A
reduction in the operating temperature of the module will result
in an increase in reliability. The thermal data presented here is
based on physical measurements taken in a wind tunnel. The
test set-up is shown in Figure 49. The preferred airflow
direction for the module is in Figure 50.

25.4_

ind Tunnel

PWBs

(1.0)

Power Module

Figure 50. Preferred airflow direction and location of
hot-spot of the module (Tref).

Datasheet

76.2_
(3.0)

x

Probe Location

12.7_

(0.50)

for measuring
airflow and
ambient
temperature

flow

Figure 49. Thermal Test Setup.

The thermal reference points, T
also shown in Figure 50. For reliable operation the
temperatures at these points should not exceed 125
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.

used in the specifications are

ref

o

C. The

June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 18

GE Energy

2A DLynxTM: Non-Isolated DC-DC Power Modules

3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current

Example Application Circuit

Requirements:
Vin: 12V
Vout: 1.8V
Iout: 1A max., worst case load transient is from 1A to 1.5A

ΔVout: 1.5% of Vout (27mV) for worst case load transient
Vin, ripple 1.5% of Vin (180mV, p-p)

Vin+

VIN

+

CI3

CI2

CI1

MODULE

VOUT

SENSE

Datasheet

RTUNE

CTUNE

Vout+

CO1

CO2

Q3

ON/OFF

GND

CI1 1x0.1μF/16V ceramic capacitor (0402 size)
CI2 1x10μF/16V ceramic capacitor (e.g. TDK C Series)
CI2 100μF/16V bulk electrolytic
CO1 1x0.1μF/16V ceramic capacitor (0402 size)
CO1 2x47μF/6.3V ceramic capacitor (e.g. TDK C Series, Murata GRM32ER60J476ME20)
CTune 5600pF ceramic capacitor
RTune 150 ohms SMT resistor
RTrim 5kΩ SMT resistor (recommended tolerance of 0.1%)

TRIM

RTrim

June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 19

GE Energy

2A DLynxTM: Non-Isolated DC-DC Power Modules

3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current

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.)

Datasheet

June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 20

GE Energy

2A DLynxTM: Non-Isolated DC-DC Power Modules

3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A 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.)

Datasheet

June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 21

PIN FUNCTION

1 ON/OFF
2 VIN
3 GND
4 VOUT
5 SENSE
6 TRIM
7 GND
8 NC
9 NC

10 PGOOD

GE Energy

Datasheet

2A DLynxTM: Non-Isolated DC-DC Power Modules

3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current

Packaging Details

The 12V DLynxTM 2A modules are supplied in tape & reel as standard. Modules are shipped in quantities of 400 modules per reel.
All Dimensions are in millimeters and (in inches).

Reel Dimensions:
Outside Dimensions: 330.2 mm (13.00)
Inside Dimensions: 177.8 mm (7.00”)
Tape Width: 24.00 mm (0.945”)

June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 22

GE Energy

2A DLynxTM: Non-Isolated DC-DC Power Modules

3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current

Surface Mount Information

Pick and Place

The 12V DLynxTM 2A modules use an open frame construction
and are designed for a fully automated assembly process. The
modules are fitted with a label designed to provide a large
surface area for pick and place operations. The label meets all
the requirements for surface mount processing, as well as
safety standards, and is able to withstand reflow temperatures
of up to 300
as product code, serial number and the location of
manufacture.

Nozzle Recommendations

The module weight has been kept to a minimum by using open
frame construction. Variables such as nozzle size, tip style,
vacuum pressure and placement speed should be considered
to optimize this process. The minimum recommended inside
nozzle diameter for reliable operation is 3mm. The maximum
nozzle outer diameter, which will safely fit within the allowable
component spacing, is 7 mm.

Bottom Side / First Side Assembly

This module is not recommended for assembly on the bottom
side of a customer board. If such an assembly is attempted,
components may fall off the module during the second reflow
process. If assembly on the bottom side is planned, please
contact GE Energy for special manufacturing process
instructions.

Only ruggedized (-D version) modules with additional epoxy will
work with a customer’s first side assembly. For other versions,
first side assembly should be avoided

o

C. The label also carries product information such

The recommended linear reflow profile using Sn/Ag/Cu
solder is shown in Fig. 51. Soldering outside of the
recommended profile requires testing to verify results
and performance.

MSL Rating

The 12V DLynxTM 2A modules have a MSL rating of 2a.

Storage and Handling

The recommended storage environment and handling
procedures for moisture-sensitive surface mount
packages is detailed in J-STD-033 Rev. A (Handling,
Packing, Shipping and Use of Moisture/Reflow Sensitive
Surface Mount Devices). Moisture barrier bags (MBB)
with desiccant are required for MSL ratings of 2 or
greater. These sealed packages should not be broken
until time of use. Once the original package is broken,
the floor life of the product at conditions of ≤ 30°C and
60% relative humidity varies according to the MSL rating
(see J-STD-033A). The shelf life for dry packed SMT
packages will be a minimum of 12 months from the bag
seal date, when stored at the following conditions: < 40°
C, < 90% relative humidity.

300

Per J-STD-020 Rev. C

250

200

150

Heating Zone

1°C/Second

100

Reflow Temp (°C)

50

Datasheet

Peak Temp 260°C

* Min. Time Above 235°C

15 Seconds

*Time Above 217°C

60 S econds

Cooling
Zone

Lead Free Soldering

The 12V DLynxTM 2A modules are lead-free (Pb-free) and RoHS
compliant and fully compatible in a Pb-free soldering process.
Failure to observe the instructions below may result in the
failure of or cause damage to the modules and can adversely
affect long-term reliability.

0

Reflow Time (Seconds)

Figure 51. Recommended linear reflow profile using
Sn/Ag/Cu solder.

Post Solder Cleaning and Drying Considerations

Post solder cleaning is usually the final circuit-board

Pb-free Reflow Profile

Power Systems will comply with J-STD-020 Rev. C
(Moisture/Reflow Sensitivity Classification for
Nonhermetic Solid State Surface Mount Devices) for both
Pb-free solder profiles and MSL classification procedures.
This standard provides a recommended forced-air­convection reflow profile based on the volume and

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 (AN04-001).

thickness of the package (table 4-2). The suggested Pb­free solder paste is Sn/Ag/Cu (SAC).

recommended.
For questions regarding Land grid array(LGA) soldering, solder

volume; please contact GE Energy for special manufacturing
process instructions.

June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 23

A 6 mil thick stencil is

GE Energy

Datasheet

2A DLynxTM: Non-Isolated DC-DC Power Modules

3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current

Ordering Information

Please contact your GE Energy Sales Representative for pricing, availability and optional features.

Table 6. Device Codes

Device Code

PNVX002A0X3-SRZ 3 – 14Vdc 0.6 – 5.5 Vdc 2A Negative No 150025978

PNVX002A0X3-SRDZ* 3 – 14Vdc 0.6 – 5.5 Vdc 2A Negative No TBD

-Z refers to RoHS compliant parts
* Check availability with GE Sales

Table 7. Coding Scheme

Package Family. Sequencing Output

P NV X 002A0 X 4 3 -SR -D* Z

P : Pico

U : Micro

M : Mega

G : Giga

A : Pre-

4G

NV:

DLynx

analog

open

frame.

T: with EZ-

SEQUENCE

X: without EZ-

SEQUENCE

Input

Voltage Range

current

2.0A X =

Output
Voltage

Output

voltage

programmable

output

Output

Current

On/Off

logic

4 =
positive
No entry =
negative

On/Off

Logic

Remote

Sense

3 =

Remote

Sense

No entry

=

negative

Sequencing Comcodes

Options ROHS

S = Surface

Mount

R =

Tape&Reel

D = 105C
operating

ambient, 40G

operating
shock as per
MIL Std 810F

Compliance

Z = ROHS6

Contact Us

For more information, call us at

USA/Canada:

[phone], or +1 972 244

9288

Asia-Pacific:

+86.021.54279977*808

Europe, Middle-East and Africa:

+49.89.878067-280

India:
+91.80.28411633

June 24, 2013 ©2012 General Electric Company. All rights reserved. Version 1.1

www.ge.com/powerelectronics