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GE

Datasheet

March 14, 2017

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output1; 10A to 2A Scaled output current

Features

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

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

versions)

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

Class II

 Tunable control loop for fast transient response

 Remote sense

 Optional positive or negative logic remote On/Off

 Output over current protection (non-latching)

 Over temperature protection

 Monotonic startup

 Sync Capability

 Small size and low profile:

33 mm x 13.46 mm x 10 mm (max.)

(1.3 in x 0.53 in x 0.39 in (max.))

 Output voltage programmable from 3 Vdc to 18Vdc via

external resistor

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

 UL* 60950-1 2nd Ed. Recognized, CSA† C22.2 No.

60950-1-07 Certified, and VDE‡ (EN60950-1 2nd Ed.)

Licensed

 ISO** 9001 and ISO 14001 certified manufacturing

facilities

Applications

 Industrial equipment

 Distributed power architectures

 Intermediate bus voltage applications

 Telecommunications equipment

Description

The 9-36V ProLynxTM series of power modules are non-isolated dc-dc converters that can deliver up to 12A of output current.

These modules operate over an extra wide range of input voltage (VIN = 9Vdc – 36Vdc) and provide a precisely regulated output

voltage from 3Vdc to 18Vdc, programmable via an external resistor. Two new features added with this family of products are the

ability to externally tune the voltage control loop and a variable current limit inversely dependent on output voltage. Other

features include remote On/Off, adjustable output voltage, over current, over temperature protection and sync capability. The

Ruggedized version (-D) is capable of operation up to 105°C and withstand high levels of shock and vibration. The Tunable LoopTM,

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 and AutoLimit enables the module to deliver the max possible output power across the

entire voltage range. The 9-36V ProLynx can also be used for negative output voltage loads through the use of a specific

application schematic

* 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

1 Output range linked to input voltage range see page 24

RoHS Compliant

+

CO3

100K

VOUT

VS+

MODULE

GND

TRIM

RTUNE

CTUNE

RTrim

VIN

CO1

+

CI3

CI1

Vin+

ON/OFF

Vout+

Q1

CI2

CO2

SYNC

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 10A to 2A Scaled output current

March 14, 2017

Page 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

37

V

Continuous

Operating Ambient Temperature

All

TA

-40

85

°C

(see Thermal Considerations section)

-D version

TA

-40

105

°C

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

9



36

Vdc

Maximum Input Current

All

IIN,max

7

Adc

(VIN=9V to 36V, IO=IO, max )

Input No Load Current

(VIN = 28V, IO = 0, module enabled)

VO,set = 3Vdc

IIN,No load

30

mA

(VIN = 28V, IO = 0, module enabled)

VO,set = 18Vdc

IIN,No load

50

mA

Input Stand-by Current

All

IIN,stand-by

3

mA

(VIN = 28Vdc, module disabled)

Inrush Transient

All

I2t

0.5

A2s

Input Reflected Ripple Current, peak-to-peak

(5Hz to 20MHz, 1μH source impedance; VIN =0 to 36V, IO=

IOmax ; See Test Configurations)

All

125

mAp-p

Input Ripple Rejection (120Hz)

All

-45

dB

CAUTION: This power module is not internally fused. An input line fuse must always be used.

This power module can be used in a wide variety of applications, ranging from simple standalone operation to 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

8 A fast acting (see Safety Considerations section). Based on the information provided in this data sheet on inrush energy and

maximum dc input current, the same type of fuse with a lower rating can be used. Refer to the fuse manufacturer’s data sheet for

further information.

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 10A to 2A Scaled output current

March 14, 2017

Page 3

Electrical Specifications (continued)

Parameter

Device

Symbol

Min

Typ

Max

Unit

Output Voltage Set-point

All

VO, set

-1.5

+1.5

% VO, set

Output Voltage

All

VO, set

-2.5



+2.5

% VO, set

(Over all operating input voltage, resistive load, and

temperature conditions until end of life)

Adjustment Range (elected by an external resistor)

(Some output voltages may not be possible depending

on the input voltage – see Feature Descriptions Section)

All

VO

3

18

Vdc

Output Regulation

Line (VIN=VIN, min to VIN, max)

All



0.4

% VO, set

Load (IO=IO, min to IO, max)

All



0.4

% VO, set

Temperature (Tref=TA, min to TA, max)

All

1

% VO, set

Remote Sense Range

All

0.5

Vdc

Input Noise, nominal ouput, (VIN=VIN, nom and IO=IO,

min to IO, max Cin = 1x47nF(0306) or equivalent ,

5x10uF, 50V(1210) ceramic capacitors and 470uF,50V

(electrolytic), 25°C Ambient, 500MHz BW

All

3% Vin

Output Ripple and Noise on nominal output (VIN=VIN,

nom and IO=IO, min to IO, max Co = 1x47nF(0306) or

equivalent, 2x47uF (1210) or equivalent ceramic

capacitors on output and 1x47nF(0402) or equivalent,

5x10uF(1210) ceramic capacitors or equivalent and

470uF,50V electrolytic) on input, 25°C Ambient, 500MHz

BW

2.5%Vo

mVpk-pk

Output Ripple and Noise on nominal output

(VIN=VIN, nom and IO=IO, min to IO, max Co = 0.1μF // 10 μF

ceramic capacitors)

Vout=3.3V, Vin=28V

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

All

75

mVpk-pk

RMS (5Hz to 20MHz bandwidth)

All

20

mVrms

Vout=18V, Vin=28V

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

All

150

mVpk-pk

RMS (5Hz to 20MHz bandwidth)

All

40

mVrms

External Capacitance1

Without the Tunable LoopTM

ESR ≥ 1 mΩ

All

CO, max

0



100

μF

ESR ≥ 10 mΩ

All

CO, max

0



1000

μF

With the Tunable LoopTM

ESR ≥ 0.15 mΩ

All

CO, max

100



250

μF

ESR ≥ 10 mΩ

All

CO, max

0



5000*

μF

Output Current (Vo=3V)

All

Io

0

12

Adc

Vo=5V

All

Io

0

11.2

Adc

Vo=12V

All

Io

0

8.4

Adc

Vo=18V

All

Io

0

6

Adc

1Depending on Input and Output Voltage, external capacitors 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.

* Larger values may be possible at specific output voltages. Please consult your GE Technical representative for additional details.

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 10A to 2A Scaled output current

March 14, 2017

Page 4

Electrical Specifications (continued)

Parameter

Device

Symbol

Min

Typ

Max

Unit

Output Current Limit Inception (Hiccup Mode )

All

IO, lim

160

% Io,max

Output Short-Circuit Current 12Vin 25C

All

IO, s/c

3

Adc

(VO≤250mV) ( Hiccup Mode ) 28Vin

Efficiency (IO=IO, max , VO= VO,set)

VIN= 12Vdc, TA=25°C

VO, set = 3.3Vdc

η

91.0

%

VIN= 12Vdc, TA=25°C

VO, set = 5Vdc

η

93

%

VIN= 28Vdc, TA=25°C

VO,set = 12Vdc

η

94

%

VIN= 28Vdc, TA=25°C

VO,set = 18Vdc

η

95.5

%

Switching Frequency

All

fsw



308



kHz

Frequency Synchronization

Synchronization Frequency Range

fSW

1.1 fSW

kHz

Input high voltage

2

V

Input low voltage

0.8

V

Input Current, SYNC

10

nA

Minimum SYNC Pulse Width

50

ns

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 10A to 2A Scaled output current

March 14, 2017

Page 5

General Specifications

Parameter

Min

Typ

Max

Unit

Calculated MTBF (IO=0.8IO, max, TA=40°C) Telcordia Issue 2, Method 1, Case 3

>7,000,000

Hours

Weight



7 (0.247)



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)

Device is with suffix “4” – Positive Logic (See Ordering Information)

Logic High (Module ON)

Input High Current

All

IIH



500

µA

Input High Voltage

All

VIH

4.6



12

V

Logic Low (Module OFF)

Input Low Current

All

IIL



0.5

mA

Input Low Voltage

All

VIL

-0.3



3.3

V

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

Logic High (Module OFF)

Input High Current

All

IIH

―

3

mA

Input High Voltage

All

VIH

1.8

―

36

Vdc

Logic Low (Module ON)

Input low Current

All

IIL

―

220

μA

Input Low Voltage

All

VIL

-0.2

―

0.3

Vdc

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

―

12

―

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 Von/Off is enabled until Vo = 10% of Vo, set)

All

Tdelay

―

12

―

msec

Output voltage Rise time (time for Vo to rise from

10% of Vo, set to 90% of Vo, set)

All

Trise

―

20

msec

Output voltage overshoot (TA = 25oC

1

% VO, set

VIN= VIN, min to VIN, max,IO = IO, min to IO, max)

With or without maximum external capacitance

Over Temperature Protection

All

Tref

130

°C

(See Thermal Considerations section)

Input Undervoltage Lockout

Turn-on Threshold

All

8.3

Vdc

Turn-off Threshold

All

8.2

Vdc

Hysteresis

All

0.1

Vdc

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 10A to 2A Scaled output current

March 14, 2017

Page 6

Characteristic Curves

The following figures provide typical characteristics for the 9-36V ProTLynxTM 12A at 3.3Vo and at 25oC. (11.8A rated output)

EFFICIENCY,  (%)

OUTPUT CURRENT, Io (A)

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) (20mV/div)

TIME, t (2s/div)

TIME, t (20s /div)

Figure 3. Typical output ripple and noise (VIN = 28V, Io = Io,max).

Figure 4. Transient Response to Dynamic Load Change from

50% to 100% at 28Vin, Cext – 2x22uF+2x330uF, CTune=15nF &

RTune=200Ω

OUTPUT VOLTAGE ON/OFF VOLTAGE

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

OUTPUT VOLTAGE INPUT VOLTAGE

VO (V) (1V/div) VIN (V) (20V/div)

TIME, t (10ms/div)

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

Figure 6. Typical Start-up Using Input Voltage (VIN = 28V, Io =

Io,max).

70

75

80

85

90

95

0 2 4 6 8 10 12

Vin=9V

Vin=12V

Vin=36V

Vin=28V

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 10A to 2A Scaled output current

March 14, 2017

Page 7

Characteristic Curves

The following figures provide typical characteristics for the 9-36V ProLynxTM 12A at 5Vo and at 25oC. (11.2A rated output)

EFFICIENCY,  (%)

OUTPUT CURRENT, Io (A)

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) (50mV/div)

TIME, t (2s/div)

TIME, t (20s /div)

Figure 9. Typical output ripple and noise (VIN = 28V, Io =

Io,max).

Figure 10. Transient Response to Dynamic Load Change from

50% to 100% at 28Vin, Cext – 1X22uF+1x330uF, CTune=5.6nF &

RTune=200

OUTPUT VOLTAGE ON/OFF VOLTAGE

VO (V) (2V/div) VON/OFF (V) (5V/div)

OUTPUT VOLTAGE INPUT VOLTAGE

VO (V) (2V/div) VIN (V) (20V/div)

TIME, t (10ms/div)

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

Figure 12. Typical Start-up Using Input Voltage (VIN = 28V, Io =

Io,max).

70

75

80

85

90

95

100

0 2 4 6 8 10 12

Vin=36V

Vin=28V

Vin=12V

Vin=9V

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 10A to 2A Scaled output current

March 14, 2017

Page 8

Characteristic Curves

The following figures provide typical characteristics for the 9-36V ProLynxTM 12A at 12Vo and at 25oC. (8.4 A rated output)

EFFICIENCY,  (%)

OUTPUT CURRENT, Io (A)

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) (100mV/div)

TIME, t (2s/div)

TIME, t (20s /div)

Figure 15. Typical output ripple and noise (VIN = 28V, Io =

Io,max).

Figure 16. Transient Response to Dynamic Load Change from

50% to 100% at 28Vin, Cext – 1x22uF+1x470uF, CTune=1.5nF

& RTune=200

OUTPUT VOLTAGE ON/OFF VOLTAGE

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

OUTPUT VOLTAGE INPUT VOLTAGE

VO (V) (5V/div) VIN (V) (20V/div)

TIME, t (10ms/div)

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

Figure 18. Typical Start-up Using Input Voltage (VIN = 28V, Io =

Io,max).

70

75

80

85

90

95

100

0 1 2 3 4 5 6 7 8 9

Vin=36V

Vin=28V

Vin=18V

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 10A to 2A Scaled output current

March 14, 2017

Page 9

Characteristic Curves

The following figures provide typical characteristics for the 9-36V ProLynxTM 12A at 18Vo and at 25oC. (6A rated output)

EFFICIENCY,  (%)

OUTPUT CURRENT, Io (A)

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) (200mV/div)

TIME, t (2s/div)

TIME, t (20s /div)

Figure 21. Typical output ripple and noise (VIN = 28V, Io =

Io,max).

Figure 22. Transient Response to Dynamic Load Change from

50% to 100% at 28Vin, Cext – 5x22uF, CTune= 220pF &

RTune=200

OUTPUT VOLTAGE ON/OFF VOLTAGE

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

OUTPUT VOLTAGE INPUT VOLTAGE

VO (V) (5V/div) VIN (V) (20V/div)

TIME, t (10ms/div)

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

Figure 24. Typical Start-up Using Input Voltage (VIN = 28V, Io =

Io,max).

70

75

80

85

90

95

100

0 1 2 3 4 5 6

Vin=36V

Vin=28V

Vin=24V

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 12A to 1.5A Scaled output current

March 14, 2017

Page 10

Test Configurations

TO OSCILLOSCOPE

CURRENT PROBE

LTEST

1μH

BATTERY

CS 1000μF

Electrolytic

E.S.R.<0.1

@ 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 25. 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.

Vo+

COM

0.1uF

RESISTIVE

LOAD

SCOPE USING

BNC SOCKET

COPPER STRIP

GROUND PLANE

10uF

Figure 26. Output Ripple and Noise Test Setup.

VO

COM

VIN(+)

COM

RLOAD

Rcontact

Rdistribution

Rcontact

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 27. Output Voltage and Efficiency Test Setup.



=

VO.

IO

VIN.

IIN

x

100

%

Efficiency

Design Considerations

Input Filtering

The 9-36V ProLynxTM 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 28 shows

the input ripple voltage for various output voltages at

maximum load current with 3x10 µF or 4x10 µF ceramic

capacitors and an input of 12V, while Fig. 29 shows the input

ripple for an input voltage of 28V.

Input Ripple Voltage (mVp-p)

Output Voltage (Vdc)

Figure 28. Input ripple voltage for various output voltages

with 3x10 µF or 4x10 µF ceramic capacitors at the input

(maximum load). Input voltage is 12V. Scope BW at 20MHz

Input Ripple Voltage (mVp-p)

Output Voltage (Vdc)

Figure 29. Input ripple voltage for various output voltages

with 3x10 µF or 4x10 µF ceramic capacitors at the input

(maximum load). Input voltage is 28V. Scope BW at 20MHz

200

225

250

275

300

325

3 4 5 6 7 8

3x10uF

4x10uF

150

200

250

300

350

400

450

3 5 7 9 11 13 15 17

3x10uF

4x10uF

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 10A to 2A Scaled output current

March 14, 2017

Page 11

Output Filtering

The 9-36V ProLynxTM modules are designed for low output

ripple voltage and will meet the maximum output ripple

specification with 0.047 µF ceramic and 22 µF 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. Figures 30 and 31 provide output ripple information

for different external capacitance values at various Vo and for

full load currents. 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.

Figure 30. Output ripple with external 3x22 µF or 4x22 µF

ceramic capacitors at the output (max. load). Input voltage

is 12V. Scope BW at 20MHz

Figure 31. Output ripple voltage with external 3x22 µF or

4x22µF ceramic capacitors at the output (max. load). Input

voltage is 28V. Scope BW 20MHz

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.

The input to these units is to be provided with a fast-acting

fuse with a maximum rating of 8 A in the positive input lead.

0

5

10

15

20

3 4 5 6 7 8

Ripple(mVp-p)

Output Voltage(Volts)

3x22uF

4x22uF

0

10

20

30

40

50

60

70

80

2 4 6 8 10 12 14 16 18

Output Ripple (mVp-p)

Output Voltage(Volts)

3x22uF

4x22uF

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 10A to 2A Scaled output current

March 14, 2017

Page 12

Feature Descriptions

Remote Enable

The 9-36V ProLynxTM 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 positive logic modules, the circuit configuration for using

the On/Off pin is shown in Figure 32. When the external

transistor Q1 is in the OFF state, the ON/OFF pin is pulled high

and transistor Q2 is OFF leading to Q3 also being OFF which

turns the module ON. The external resistor Rpullup (100k

recommended) must be sized so that VON/OFF is never more

than 12V when Q1 is OFF. In particular, if Vpullup is made the

same as the input voltage Vin, the resistor Rpullup must be large

enough so that VON/OFF is never more than 12V. If the On/Off pin

is left floating the module will be in the ON state.

For negative logic On/Off modules, the circuit configuration is

shown in Fig. 33. When the external transistor Q1 is in the ON

state, the ON/OFF pin is pulled low causing transistor Q2 to be

OFF and the module to be turned ON. To turn the module OFF,

Q1 is turned OFF, causing the ON/OFF pin to be pulled high

turning Q2 ON and the module to be turned OFF. If the On/Off

pin is left floating, the module will be in the ON state.

Figure 32. Circuit configuration for using positive On/Off

logic.

Figure 33. Circuit configuration for using negative On/Off

logic.

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 9-36V ProLynx modules employ an

innovative, patent pending, ‘AutoLimit’ capability. This results in

automatic scaling of current limit with output voltage through

an inverse relationship of the current limit threshold with the

output voltage. This feature shown graphically in Fig. 34, allows

higher output currents to be drawn from the module at lower

output voltages thereby optimizing the power delivery

capability of the module.

Figure 34. Graph showing maximum output current

capability at different output voltages.

Over Temperature 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 130oC is exceeded at the

thermal reference point Tref. The thermal shutdown is not

intended as a guarantee that the unit will survive

22K

ION/OFF

CSS

Q1

GND

ON/OFF

Vpullup

_

+

PWM Enable

VON/OFF

MODULE

Rpullup

22K

Q3

42K

Q2

22K

+5V

ISS

4

6

8

10

12

14

3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

Output Current (A)

Output Voltage (V)

ISS

ON/OFF

I

CSS

Q1

ON/OFF

VIN+

GND

_

+

V

Rpullup

22K

Q2

22K

D1

ON/OFF

MODULE

PWM Enable

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 10A to 2A Scaled output current

March 14, 2017

Page 13

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 9-36V ProLynxTM module can be

programmed to any voltage from 3Vdc to 18Vdc 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. 35.

Without an external resistor between Trim and GND pins, the

output of the module will be 0.7Vdc. To calculate the value of

the trim resistor, Rtrim for a desired output voltage, use the

following equation:

 

















k

Vo

Rtrim 7.0

70

Rtrim is the external resistor in kΩ, and Vo is the desired

output voltage.

Figure 35. Output Voltage vs. Input Voltage Set Point Area

plot showing limits where the output voltage can be set for

different input voltages.

Table 1 provides Rtrim values required for some common

output voltages.

Table 1

VO, set (V)

Rtrim (KΩ)

3.3

26.92

5

16.27

6

13.20

9

8.43

12

6.19

15

4.89

18

4.04

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.

Remote Sense

The 9-36V ProLynxTM power modules have a Remote Sense

feature to minimize the effects of distribution losses by

regulating the voltage between the VS+ and Vo pin. The

voltage between the VS+ pin and Vo pin should not exceed

0.5V.

VO(+)

TRIM

GND

Rtrim

LOAD

VIN(+)

ON/OFF

VS+

Figure 36. Circuit configuration for programming output

voltage using an external resistor.

Voltage Margining

Output voltage margining can be implemented in the 9-36V

ProLynxTM 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 37 shows the circuit

configuration for output voltage margining. The POL

Programming Tool, available at www.gecriticalpower.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 GE technical representative

for additional details.

Figure 37. Circuit Configuration for margining Output

voltage

5

10

15

20

25

30

35

40

2 4 6 8 10 12 14 16 18

Input Voltage (v)

Output Voltage (V)

Lower Limit

Upper Limit

Vo

MODULE

GND

Trim

Q1

Rtrim

Rmargin-up

Q2

Rmargin-down

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 10A to 2A Scaled output current

March 14, 2017

Page 14

Synchronization

The module switching frequency can be synchronized to a

signal with an external frequency within a specified range.

Synchronization can be done by using the external signal

applied to the SYNC pin of the module as shown in Fig. 38, with

the converter being synchronized by the rising edge of the

external signal. The Electrical Specifications table specifies the

requirements of the external SYNC signal. If the SYNC pin is not

used, the module should free run at the default switching

frequency. If synchronization is not being used, connect the

SYNC pin to GND.

MODULE

SYNC

GND

+

─

Figure 38. External source connections to synchronize

switching frequency of the module.

Tunable LoopTM

The 9-36V ProLynxTM modules have a new feature that

optimizes transient response of the module called Tunable

LoopTM.

External capacitors are usually added to the output of the

module for two reasons: to reduce output ripple and noise (see

Figs 30 and 31) 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 LoopTM allows the user to externally adjust the

voltage control loop to match the filter network connected to

the output of the module. The Tunable LoopTM is implemented

by connecting a series R-C between the VS+ and TRIM pins of

the module, as shown in Fig. 38. This R-C allows the user to

externally adjust the voltage loop feedback compensation of

the module.

Recommended values of RTUNE and CTUNE for different output

capacitor combinations are given in Tables 2, 3 and 4. Tables 2

and 3 show recommended values of RTUNE and CTUNE for

different values of ceramic output capacitors up to 100F that

might be needed for an application to meet output ripple and

noise requirements. Selecting RTUNE and CTUNE according to

Tables 2 and 3 will ensure stable operation of the module

In applications with tight output voltage limits in the presence

of dynamic current loading, additional output capacitance will

be required. Table 4 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 50% of full

load step change with an input voltage of 12 or 28V.

Figure. 39. Circuit diagram showing connection of RTUME and

CTUNE to tune the control loop of the module.

Please contact your GE 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 or input voltages other than 12 / 28V.

MODULE

VOUT

VS+

TRIM

GND

RTUNE

CTUNE

RTrim

C O

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 10A to 2A Scaled output current

March 14, 2017

Page 15

Table 2. General recommended values of of RTUNE and CTUNE

for Vin=12V and various external ceramic capacitor

combinations.

Vo=5V

Co

5x22F

6x22F

7x22F

8x22F

10x22F

RTUNE

300

240

CTUNE

2700p

3300p

3900p

4700p

6800p

Table 3. General recommended values of of RTUNE and CTUNE

for Vin=28V and various external ceramic capacitor

combinations.

Vo=5V

Co

5x22F

6x22F

7x22F

8x22F

10x22F

RTUNE

300

240

CTUNE

1800p

2200p

3900p

3300p

3900p

Vo=12V

Co

5x22F

6x22F

7x22F

8x22F

10x22F

RTUNE

300

240

CTUNE

560p

820p

1000p

1200p

1800p

Table 4. Recommended values of RTUNE and CTUNE to obtain

transient deviation of 2% of Vout for a 50% of full load

step.

Vin

12V

28V

Vo

3.3V

5V

3.3V

5V

12V

18V

ΔI

6A

5.5A

6A

5.5A

4.2

3A

Co

2x22uF

+

2x330uF

1x22uF

+

1x330uF

2x22uF

+

2x330uF

1x22uF +

1x330uF

1x22uF

+

1x470uF

5x22uF

RTUN

E (Ω)

200

CTUN

E

22nF

12nF

15nF

5.6nF

1.5nF

220pF

V

50mV

72mV

33mV

58mV

79mV

247mV

9 mohm POSCAP 330uF-6TPF330M9L

25 mohm Nichicon 470uF, 16V

22uF, 25Vrated Ceramic Cap - GRM32ER71E226KE15L

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 10A to 2A Scaled output current

March 14, 2017

Page 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 40. The preferred

airflow direction for the module is in Figure 41. The derating

data applies to airflow in either direction of the module’s

short axis.

Air

flow

x

Power Module

Wind Tunnel

PWBs

12.7_

(0.50)

76.2_

(3.0)

Probe Location

for measuring

airflow and

ambient

temperature

25.4_

(1.0)

Figure 40. Thermal Test Setup.

The thermal reference points, Tref used in the specifications are

also shown in Figure 41. For reliable operation the

temperatures at these points should not exceed 118°C. 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 41. Preferred airflow direction and location of hot-

spot of the module (Tref).

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 12A to 1.5A Scaled output current

March 14, 2017

Page 17

Shock and Vibration

The ruggedized (-D version) of the modules are designed to withstand elevated levels of shock and vibration to be able to operate

in harsh environments. The ruggedized modules have been successfully tested to the following conditions:

Non operating random vibration:

Random vibration tests conducted at 25C, 10 to 2000Hz, for 30 minutes each level, starting from 30Grms (Z axis) and up to

50Grms (Z axis). The units were then subjected to two more tests of 50Grms at 30 minutes each for a total of 90 minutes.

Operating shock to 40G per Mil Std. 810F, Method 516.4 Procedure I:

The modules were tested in opposing directions along each of three orthogonal axes, with waveform and amplitude of the shock

impulse characteristics as follows:

All shocks were half sine pulses, 11 milliseconds (ms) in duration in all 3 axes.

Units were tested to the Functional Shock Test of MIL-STD-810, Method 516.4, Procedure I - Figure 516.4-4. A shock magnitude of

40G was utilized. The operational units were subjected to three shocks in each direction along three axes for a total of eighteen

shocks.

Operating vibration per Mil Std 810F, Method 514.5 Procedure I:

The ruggedized (-D version) modules are designed and tested to vibration levels as outlined in MIL-STD-810F, Method 514.5, and

Procedure 1, using the Power Spectral Density (PSD) profiles as shown in Table 1 and Table 2 for all axes. Full compliance with

performance specifications was required during the performance test. No damage was allowed to the module and full

compliance to performance specifications was required when the endurance environment was removed. The module was tested

per MIL-STD-810, Method 514.5, Procedure I, for functional (performance) and endurance random vibration using the performance

and endurance levels shown in Table 5 and Table 6 for all axes. The performance test has been split, with one half accomplished

before the endurance test and one half after the endurance test (in each axis). The duration of the performance test was at least

16 minutes total per axis and at least 120 minutes total per axis for the endurance test. The endurance test period was 2 hours

minimum per axis.

Table 5: Performance Vibration Qualification - All Axes

Frequency (Hz)

PSD Level

(G2/Hz)

Frequency

(Hz)

PSD Level

(G2/Hz)

Frequency

(Hz)

PSD Level

(G2/Hz)

10

1.14E-03

170

2.54E-03

690

1.03E-03

30

5.96E-03

230

3.70E-03

800

7.29E-03

40

9.53E-04

290

7.99E-04

890

1.00E-03

50

2.08E-03

340

1.12E-02

1070

2.67E-03

90

2.08E-03

370

1.12E-02

1240

1.08E-03

110

7.05E-04

430

8.84E-04

1550

2.54E-03

130

5.00E-03

490

1.54E-03

1780

2.88E-03

140

8.20E-04

560

5.62E-04

2000

5.62E-04

Table 6: Endurance Vibration Qualification - All Axes

Frequency

(Hz)

PSD Level

(G2/Hz)

Frequency

(Hz)

PSD Level

(G2/Hz)

Frequency

(Hz)

PSD Level

(G2/Hz)

10

0.00803

170

0.01795

690

0.00727

30

0.04216

230

0.02616

800

0.05155

40

0.00674

290

0.00565

890

0.00709

50

0.01468

340

0.07901

1070

0.01887

90

0.01468

370

0.07901

1240

0.00764

110

0.00498

430

0.00625

1550

0.01795

130

0.03536

490

0.01086

1780

0.02035

140

0.0058

560

0.00398

2000

0.00398

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 10A to 2A Scaled output current

March 14, 2017

Page 18

Example Application Circuit

Requirements:

Vin: 28V

Vout: 12V

Iout: 6.3A max., worst case load transient is from 4.2 A to 6.3 A

Vout: 1.5% of Vout (180mV) for worst case load transient

Vin, ripple 1.5% of Vin (420mV, p-p)

CI1 1 x 0.01F/50V, 0603 ceramic capacitor

CI2 4 x 10F/50V ceramic capacitor (e.g. Murata GRM32ER71H106K)

CI3 47F/63V bulk electrolytic

CO1 1 x 0.01F/25V, 0306 ceramic capacitor (e.g. Murata LLL185R71E103MA01L))

CO2 4 x 22uF/25V ceramic capacitor (e.g. Murata GRM32ER71E226KE15L)

CO3 NA

CTune 470p ceramic capacitor (can be 1206, 0805 or 0603 size)

RTune 200 ohms SMT resistor (can be 1206, 0805 or 0603 size)

RTrim 6.19K resistor

+

CO3

100K

VOUT

VS+

MODULE

GND

TRIM

RTUNE

CTUNE

RTrim

VIN

CO1

+

CI3

CI1

Vin+

ON/OFF

Vout+

Q1

CI2

CO2

SYNC

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 10A to 2A Scaled output current

March 14, 2017

Page 19

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.)

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 10A to 2A Scaled output current

March 14, 2017

Page 20

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.)

FUNCTION

1

On/Off

6

VOUT

2

VIN

7

TRIM

3

GND

8

VS+

4

SYNC

9

GND

5

GND

10

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 10A to 2A Scaled output current

March 14, 2017

Page 21

Packaging Details

The 9-36V ProLynxTM modules are supplied in tape & reel as standard. Modules are shipped in quantities of 250 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: 56.00 mm (2.205”)

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 10A to 2A Scaled output current

March 14, 2017

Page 22

Surface Mount Information

Pick and Place

The 9-36V ProLynxTM 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 300oC. The label also

carries product information such 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.

Lead Free Soldering

The 9-36V ProLynxTM 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.

Pb-free Reflow Profile

Power Systems will comply with J-STD-020 Rev. D

(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-air-convection reflow profile

based on the volume and thickness of the package (table 4-2).

The suggested Pb-free solder paste is Sn/Ag/Cu (SAC). The

recommended linear reflow profile using Sn/Ag/Cu solder is

shown in Fig. 42. Soldering outside of the recommended

profile requires testing to verify results and performance.

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

volume; please contact GE for special manufacturing process

instructions.

MSL Rating

The 9-36V ProLynxTM 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.

Figure 42. Recommended linear reflow profile using

Sn/Ag/Cu solder.

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 (AN04-001).

Per J-STD-020 Rev. D

0

50

100

150

200

250

300

Reflow Time (Seconds)

Reflow Temp (°C)

Heating Zone

1°C/Second

Peak Temp 260°C

* Min. Time Above 235°C

15 Seconds

*Time Above 217°C

60 Seconds

Cooling

Zone

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 10A to 2A Scaled output current

March 14, 2017

Page 23

EMC Considerations

The circuit and plots in Figure 42 shows a suggested configuration to meet the radiated emission limits of EN55022 Class A. Actual

performance depends on layout and external components used.

CI1 1 x 0.01F/50V, 0603 ceramic capacitor

CI2 10uF/50V,

CO1 1 x 0.01F/25V, 0603 ceramic capacitor

CO2 10uF/50V ceramic capacitor (e.g. Murata GCM32ER71E106KA42)

RTrim 16.3k resistor

VOUT

VS+

MODULE

GND

TRIM

RTrim

VIN

CO1

CI1

Vin+

ON/OFF

Vout+

CI2

CO2

SYNC

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 10A to 2A Scaled output current

March 14, 2017

Page 24

Fig 43 – EMI Plot of APXW012 on evaluation board with 12 V in, 5Vo @ 9 A out

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 10A to 2A Scaled output current

March 14, 2017

Page 25

Fig 44 – EMI Plot of APXW012 on evaluation board with 28 V in in / 5 Vdc @ 9 A out

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 12A to 1.5A Scaled output current

March 14, 2017

Page 26

Negative Output Operation

Basic Scheme

The 9-36V ProLynxTM modules can also be used to create

negative output voltages from a positive input voltage.

Changing the input connection to as shown in Figure 45

converts the module from a synchronous buck converter to a

synchronous flyback converter

Figure 45. Schematic Connection of 12A ProLynx module for

negative output applications.

Remote Enable

Figures 33 and 34 still apply for remote On/Off operation.

However the On/Off threshold is now with respect to –Vout

instead of Ground. Before the module turns on, output is zero

so GND and –Vout are at the same potential. After the

module turns on, -Vout moves down and so will the ON/OFF

threshold. The following level shifting circuit can be used in

applications to limit exposure of the negative output voltage

to the On/Off circuitry.

Figure 46. On/Off Level Shifting Circuit for the 12A ProLynx

module for negative output applications.

Instead of directly turning Q1 On, the level shifting circuit is

used to turn Q1 On by first turning Q2 ON. When Q1 is in the

ON state, the ON/OFF pin is pulled low causing transistor Q5

to be OFF and the module to be turned ON. Both Q1 and Q2

are external transistors. To turn the module OFF, Q2 is turned

OFF, which turns Q1 OFF causing the ON/OFF pin to be pulled

high turning Q5 ON and the module to be turned OFF. If the

On/Off pin is left floating, the module will be in the OFF state.

Input Voltage Range

The 9-36V ProLynxTM modules when connected in a negative

output application will support a maximum input voltage

which is also a function of the output voltage. The sum of the

applied input voltage and magnitude of the output voltage

cannot exceed 36V. Vin(applied) +|Vout| ≤ 36 and Vout≤-3V. For

e.g. with a -12V output system the max input voltage that can

applied is only 24V. However, Figure 35 showing variation of

output voltage with Input Voltage should still be considered for

determining the required minimum input voltage.

Input voltage turn-on threshold remains the same as the

positive output connection. However the input turn-off

threshold tracks the output voltage and is reduced by the

same level. The listed input Turn-Off threshold of 7.35V when

applied to a -3.3Vout application will be measured as a 4.05V

(7.35V – 3.3V) threshold. Operating at input voltages below 9V

may cause the module to shut down earlier due to OCP

inception.

Output Voltage Range

The 9-36V ProLynxTM modules will support the values of trim

resistors indicated in Table 1 to generate the same output

voltage, except with sign inversion. For an output voltage of

12V or higher the maximum input voltage will have to be

proportionally reduced from 24Vin so that the sum of the

magnitudes does not exceed 36V

Overcurrent Protection

The 9-36V ProLynx modules will automatically scale current

limit with output voltage through an inverse relationship of the

current limit threshold even in negative output voltage mode.

This feature is shown graphically in Fig. 47, allows higher

output currents to be drawn from the module at lower output

voltages thereby optimizing the power delivery capability of

the module.

Figure 47. Graph showing maximum output current

capability at different output voltages.

ISS1

I

ON/OFF

CSS1

Q1

ON/OFF

GND

+

V

22K

Q5

22K

D1

MODULE

PWM Enable

ON/OFF

R2

R1

Q2

-

10K

ENABLE

Co

VOUT

Vin+

VS+

Q1

-

Vout

TRIM

ON/OFF

Cin

VIN

MODULE

RTUNE

GND

RTrim

CTUNE

R

GND

SYNC

Module GND

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 10A to 2A Scaled output current

March 14, 2017

Page 27

Efficiency

9-36V ProLynx modules in a negative output application

-3.3Vout and at 25°C

EFFICIENCY,  (%)

OUTPUT CURRENT, IO (A)

Figure 48. Converter Efficiency versus Output Current.

-5Vout and at 25°C

EFFICIENCY,  (%)

OUTPUT CURRENT, IO (A)

Figure 49. Converter Efficiency versus Output Current.

-12Vout and at 25°C

EFFICIENCY,  (%)

OUTPUT CURRENT, IO (A)

Figure 50. Converter Efficiency versus Output Current.

-18Vout and at 25°C

EFFICIENCY,  (%)

OUTPUT CURRENT, IO (A)

Figure 51. Converter Efficiency versus Output Current.

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 12A to 1.5A Scaled output current

March 14, 2017

Page 28

Thermal

Thermal Derating curves for some of the output voltage

settings when the 9-36V ProLynx modules are connected in a

negative output application. De-rating curves for -3.3Vout, -

5Vout, -12Vout and -18Vout have been provided for input

voltages of 9Vin, 12Vin and 24Vin. Intermediate voltages can

be estimated through extrapolation of provided data

9Vin, -3.3Vout

OUTPUT CURRENT, Io (A)

AMBIENT TEMPERATURE, TA OC

Figure 52. Derating Output Current versus Ambient

Temperature and Airflow.

12Vin, -3.3Vout

OUTPUT CURRENT, Io (A)

AMBIENT TEMPERATURE, TA OC

Figure 53. Derating Output Current versus Ambient

Temperature and Airflow.

24Vin, -3.3Vout

OUTPUT CURRENT, Io (A)

AMBIENT TEMPERATURE, TA OC

Figure 54. Derating Output Current versus Ambient

Temperature and Airflow.

9Vin, -5Vout

OUTPUT CURRENT, Io (A)

AMBIENT TEMPERATURE, TA OC

Figure 55. Derating Output Current versus Ambient

Temperature and Airflow.

12Vin, -5Vout

OUTPUT CURRENT, Io (A)

AMBIENT TEMPERATURE, TA OC

Figure 56. Derating Output Current versus Ambient

Temperature and Airflow.

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 10A to 2A Scaled output current

March 14, 2017

Page 29

24Vin, -5Vout

OUTPUT CURRENT, Io (A)

AMBIENT TEMPERATURE, TA OC

Figure 57. Derating Output Current versus Ambient

Temperature and Airflow.

9Vin, -12Vout

OUTPUT CURRENT, Io (A)

AMBIENT TEMPERATURE, TA OC

Figure 58. Derating Output Current versus Ambient

Temperature and Airflow.

12Vin, -12Vout

OUTPUT CURRENT, Io (A)

AMBIENT TEMPERATURE, TA OC

Figure 59. Derating Output Current versus Ambient

Temperature and Airflow.

24Vin, -12Vout

OUTPUT CURRENT, Io (A)

AMBIENT TEMPERATURE, TA OC

Figure 60. Derating Output Current versus Ambient

Temperature and Airflow.

9Vin, -18Vout

OUTPUT CURRENT, Io (A)

AMBIENT TEMPERATURE, TA OC

Figure 61. Derating Output Current versus Ambient

Temperature and Airflow.

12Vin, -18Vout

OUTPUT CURRENT, Io (A)

AMBIENT TEMPERATURE, TA OC

Figure 62. Derating Output Current versus Ambient

Temperature and Airflow.

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 12A to 1.5A Scaled output current

March 14, 2017

Page 30

18Vin, -18Vout

OUTPUT CURRENT, Io (A)

AMBIENT TEMPERATURE, TA OC

Figure 63. Derating Output Current versus Ambient

Temperature and Airflow.

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 10A to 2A Scaled output current

March 14, 2017

Page 31

Input Ripple

Input ripple curves have been provided for input voltages of

9Vin, 12Vin and 18Vin/24Vin.

Ripple at intermediate input voltages can be estimated

through extrapolation of provided curves

9Vin

Input Ripple Voltage (mVp-p)

Output Voltage (Vdc)

Figure 64. Input ripple voltage with 4x10 µF or 5x10 µF

ceramic capacitors at the input (max load).

12Vin

Input Ripple Voltage (mVp-p)

Output Voltage (Vdc)

Figure 65. Input ripple voltage with 4x10 µF or 5x10 µF

ceramic capacitors at the input (max load).

18Vin(-12Vo to -18Vo) / 24Vin(-3.3Vo to -12Vo)

Input Ripple Voltage (mVp-p)

Output Voltage (Vdc)

Figure 66. Input ripple voltage with 4x10 µF or 5x10 µF input

ceramic capacitors (max load).

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 12A to 1.5A Scaled output current

March 14, 2017

Page 32

Output Ripple

Output ripple curves for input voltages of 9Vin, 12Vin and 24Vin

Ripple at intermediate input voltages can be estimated

through extrapolation. Output Voltage is also roughly

proportional to load current level.

Table 7. Peak to Peak Ripple in mV with a 10uF external

capacitor at different load levels

-3.3Vout

0.1A

50%Load

100%Load

9Vin

14

22

34

12Vin

16

21

26.5

24Vin

16.5

24

30

-5Vout

0.1A

50%Load

100%Load

9Vin

17

24

32

12Vin

18

23

27

24Vin

20

25

27

-12Vout

0.1A

50%Load

100%Load

9Vin

30

34.5

37

12Vin

34

35

37

24Vin

40.5

41

43

-18Vout

0.1A

50%Load

100%Load

9Vin

41

47

51

12Vin

49

51.5

53

18Vin

59

57

61

9Vin

Output Ripple Voltage (mVp-p)

Output Voltage (Vdc)

Figure 67. Output ripple with 1x10µF or 2x10µF output

ceramic capacitors (max load).

12Vin

Output Ripple Voltage (mVp-p)

Output Voltage (Vdc)

Figure 68. Output ripple with 1x10µF or 2x10µF output

ceramic capacitors (max load).

18Vin(-12Vo to -18Vo) / 24Vin(-3.3Vo to -12Vo)

Output Ripple Voltage (mVp-p)

Output Voltage (Vdc)

Figure 69. Output ripple with 1x10µF or 2x10µF output

ceramic capacitors (max load).

GE

Datasheet

9-36V ProLynxTM 12A: Non-Isolated DC-DC Power Modules

9Vdc –36Vdc input; 3Vdc to 18Vdc output; 12A to 6A Scaled output current

9Vdc –24Vdc input; -3.3Vdc to -18Vdc output; 10A to 2A Scaled output current

Contact Us

For more information, call us at

USA/Canada:

+1 877 546 3243, or +1 972 244 9288

Asia-Pacific:

+86.021.54279977*808

Europe, Middle-East and Africa:

+49.89.878067-280

www.gecriticalpower.com

GE Critical Power reserves the right to make changes to the product(s) or information contained herein without notice, and no

liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s)

or information.

March 14, 2017

Version 1.6

Ordering Information

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

Table 8. Device Codes

Device Code

Input

Voltage Range

Output

Voltage

Output

Current

On/Off

Logic

Connector

Type

Comcodes

APXW012A0X3-SRZ

9 – 36Vdc or

9 – 24Vdc in

negative output

application

3 – 18Vdc or

-3.3 to -18Vdc in

negative output

application

12A – 6A or

12A – 1.5A

in negative

output

application

Negative

SMT

150028492

APXW012A0X3-SRDZ

Negative

SMT

150034987

APXW012A0X43-SRZ

Positive

SMT

150035002

-Z refers to RoHS compliant parts

Table 9. Coding Scheme

TLynx

family

Sequencing

feature.

Input

voltage

range

Output

current

Output

voltage

On/Off

logic

Remote

Sense

Options

ROHS

Compliance

AP

X

W

012

X

4

3

-SR

-D

Z

X = w/o Seq.

W = 9-

36V

12A

X =

programmable

output

4 = positive

No entry =

negative

Available

S = Surface

Mount

R = Tape &

Reel

D = 105°C

operating

ambient, 40G

operating

shock as per

MIL Std 810F

Z = ROHS6