AXA003A0X-SRZ - ABB - Datasheet.Technology

GE

Data Sheet

July 24, 2020

12V Austin MiniLynxTM: SMT Non-Isolated DC-DC Power Modules

8.3Vdc – 14Vdc input; 0.75Vdc to 5.5Vdc output; 3A Output Current

Features

▪ Compliant to RoHS Directive 2011/65/EU and

amended Directive (EU) 2015/863

▪ Compliant to REACH Directive (EC) No 1907/2006

▪ Delivers up to 3A output current

▪ High efficiency – 91% at 3.3V full load (VIN = 12.0V)

▪ Small size and low profile:

20.3 mm x 11.4 mm x 7.27 mm

(0.80 in x 0.45 in x 0.286 in)

▪ Low output ripple and noise

▪ Constant switching frequency (300 kHz)

▪ Output voltage programmable from 0.75 Vdc to

5.5 Vdc via external resistor

▪ Line Regulation: 0.3% (typical)

▪ Load Regulation: 0.4% (typical)

▪ Temperature Regulation: 0.4 % (typical)

▪ Remote On/Off

▪ Output overcurrent protection (non-latching)

▪ Wide operating temperature range (-40°C to

85°C)

▪ ANSI/UL* 62368-1 and CAN/CSA† C22.2 No. 62368-1

Recognized, DIN VDE‡ 0868-1/A11:2017 (EN62368-

1:2014/A11:2017

▪ ISO** 9001 and ISO 14001 certified

manufacturing facilities

Applications

▪ Distributed power architectures

▪ Intermediate bus voltage applications

▪ Telecommunications equipment

▪ Servers and storage applications

▪ Networking equipment

▪ Enterprise Networks

▪ Latest generation IC’s (DSP, FPGA, ASIC) and

Microprocessor powered applications

Description

Austin MiniLynxTM 12V SMT (surface mount technology) power modules are non-isolated dc-dc converters that can deliver

up to 3A of output current with full load efficiency of 91% at 3.3V output. These modules provide precisely regulated output

voltage programmable via external resistor from 0.75Vdc to 5.5Vdc over a wide range of input voltage (VIN = 8.3 - 14V).

Their open-frame construction and small footprint enable designers to develop cost- and space-efficient solutions. In

addition to sequencing, standard features include remote On/Off, programmable output voltage and over current

protection.

* 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

RoHS Compliant

GE

Data Sheet

12V Austin MiniLynxTM: SMT Non-Isolated DC-DC Power Modules

8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 3A Output Current

July 24, 2020

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

15

Vdc

Continuous

Operating Ambient Temperature

All

TA

-40

85

°C

(see Thermal Considerations section)

Storage Temperature

All

Tstg

-55

125

°C

Electrical Specifications

Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions.

Parameter

Device

Symbol

Min

Typ

Max

Unit

Operating Input Voltage

Vo,set ≤ 3.63

VIN

8.3

12

14

Vdc

Vo,set > 3.63

VIN

8.3

12

13.2

Vdc

Maximum Input Current

All

IIN,max

2.2

Adc

(VIN= VIN, min to VIN, max, IO=IO, max VO,set = 3.3Vdc)

Input No Load Current

VO,set = 0.75Vdc

IIN,No load

45

mA

(VIN = VIN, nom Vdc, IO = 0, module enabled)

VO,set = 5.5Vdc

IIN,No load

150

mA

Input Stand-by Current

All

IIN,stand-by

1.2

mA

(VIN = 5.5Vdc, module disabled)

Inrush Transient

All

I2t

0.4

A2s

Input Reflected Ripple Current, peak-to-peak

(5Hz to 20MHz, 1μH source impedance; VIN, min to VIN,

max, IO= IOmax ; See Test configuration section)

All

30

mAp-p

Input Ripple Rejection (120Hz)

All

30

dB

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

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

complex power architecture. To preserve maximum flexibility, internal fusing is not included, however, to achieve maximum safety

and system protection, always use an input line fuse. The safety agencies require a fast-acting fuse with a maximum rating of 6 A

(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

Data Sheet

12V Austin MiniLynxTM: SMT Non-Isolated DC-DC Power Modules

8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 3A Output Current

July 24, 2020

Page 3

Electrical Specifications (continued)

Parameter

Device

Symbol

Min

Typ

Max

Unit

Output Voltage Set-point

All

VO, set

-2.5

VO, set

+2.5

% VO, set

(VIN=IN, min, IO=IO, max, TA=25°C)

Output Voltage

All

VO, set

-3%

⎯

+4%

% VO, set

(Over all operating input voltage, resistive load, and

temperature conditions until end of life)

Adjustment Range

All

VO

0.7525

5.5

Vdc

Selected by an external resistor

Output Regulation

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

All

⎯

0.3

⎯

% VO, set

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

All

⎯

0.4

⎯

% VO, set

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

All

⎯

0.4

⎯

% VO, set

Output Ripple and Noise on nominal output

(VIN=VIN, nom and IO=IO, min to IO, max

Cout = 1μF ceramic//10μFtantalum capacitors)

RMS (5Hz to 20MHz bandwidth)

All

⎯

10

15

mVrms

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

All

⎯

30

50

mVpk-pk

External Capacitance

ESR ≥ 1 mΩ

All

CO, max

⎯

1000

μF

ESR ≥ 10 mΩ

All

CO, max

⎯

3000

μF

Output Current

All

Io

0

3

Adc

Output Current Limit Inception (Hiccup Mode )

All

IO, lim

⎯

200

⎯

% Io

(VO= 90% of VO, set)

Output Short-Circuit Current

All

IO, s/c

⎯

2

⎯

Adc

(VO≤250mV) ( Hiccup Mode )

Efficiency

VO,set = 1.2Vdc

η

81.5

%

VIN= VIN, nom, TA=25°C

VO, set = 1.5Vdc

η

84.0

%

IO=IO, max , VO= VO,set

VO,set = 1.8Vdc

η

86.0

%

VO,set = 2.5Vdc

η

89.0

%

VO,set = 3.3Vdc

η

91.0

%

VO,set = 5.0Vdc

η

93.0

%

Switching Frequency

All

fsw

⎯

300

⎯

kHz

Dynamic Load Response

(dIo/dt=2.5A/s; VIN = VIN, nom; TA=25°C)

All

Vpk

⎯

200

⎯

mV

Load Change from Io= 50% to 100% of Io,max; 1μF

ceramic// 10 μF tantalum

Peak Deviation

Settling Time (Vo<10% peak deviation)

All

ts

⎯

25

⎯

s

(dIo/dt=2.5A/s; VIN = VIN, nom; TA=25°C)

All

Vpk

⎯

200

⎯

mV

Load Change from Io= 100% to 50%of Io,max: 1μF

ceramic// 10 μF tantalum

Peak Deviation

Settling Time (Vo<10% peak deviation)

All

ts

⎯

25

⎯

s

GE

Data Sheet

12V Austin MiniLynxTM: SMT Non-Isolated DC-DC Power Modules

8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 3A Output Current

July 24, 2020

Page 4

Electrical Specifications (continued)

Parameter

Device

Symbol

Min

Typ

Max

Unit

Dynamic Load Response

(dIo/dt=2.5A/s; V VIN = VIN, nom; TA=25°C)

All

Vpk

⎯

75

⎯

mV

Load Change from Io= 50% to 100% of Io,max;

Co = 2x150 μF polymer capacitors

Peak Deviation

Settling Time (Vo<10% peak deviation)

All

ts

⎯

100

⎯

s

(dIo/dt=2.5A/s; VIN = VIN, nom; TA=25°C)

All

Vpk

⎯

75

⎯

mV

Load Change from Io= 100% to 50%of Io,max:

Co = 2x150 μF polymer capacitors

Peak Deviation

Settling Time (Vo<10% peak deviation)

All

ts

⎯

100

⎯

s

General Specifications

Parameter

Min

Typ

Max

Unit

Calculated MTBF (VIN= VIN, nom, IO= 0.8IO, max, TA=40°C) Telecordia SR 332

Issue 1: Method 1, case 3

10,865,800

Hours

Weight

⎯

2.8 (0.1)

⎯

g (oz.)

GE

Data Sheet

12V Austin MiniLynxTM: SMT Non-Isolated DC-DC Power Modules

8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 3A Output Current

July 24, 2020

Page 5

Feature Specifications

Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See

Feature Descriptions for additional information.

Parameter

Device

Symbol

Min

Typ

Max

Unit

On/Off Signal interface

Device code with Suffix “4” – Positive logic

(On/Off is open collector/drain logic input;

Signal referenced to GND - See feature description section)

Input High Voltage (Module ON)

All

VIH

―

VIN, max

V

Input High Current

All

IIH

―

10

μA

Input Low Voltage (Module OFF)

All

VIL

-0.2

―

0.3

V

Input Low Current

All

IIL

―

0.2

1

mA

Device Code with no suffix – Negative Logic

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

external pull-up resistor; signal referenced to GND)

Input High Voltage (Module OFF)

All

VIH

2.5

―

VIN,max

Vdc

Input High Current

All

IIH

0.2

1

mA

Input Low Voltage (Module ON)

All

VIL

-0.2

―

0.3

Vdc

Input low Current

All

IIL

―

10

μA

Turn-On Delay and Rise Times

(IO=IO, max , VIN = VIN, nom, TA = 25 oC, )

Case 1: On/Off input is set to Logic Low (Module

ON) and then input power is applied (delay from

instant at which VIN =VIN, min until Vo=10% of Vo,set)

All

Tdelay

―

3

―

msec

Case 2: Input power is applied for at least one second

and then the On/Off input is set to logic Low (delay from

instant at which Von/Off=0.3V until Vo=10% of Vo, set)

All

Tdelay

―

3

―

msec

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

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

All

Trise

―

4

6

msec

Output voltage overshoot – Startup

―

1

% VO, set

IO= IO, max; VIN = 8.3 to 14Vdc, TA = 25 oC

Overtemperature Protection

All

Tref

⎯

140

⎯

°C

(See Thermal Consideration section)

Input Undervoltage Lockout

Turn-on Threshold

All

7.9

V

Turn-off Threshold

All

7.8

V

GE

Data Sheet

12V Austin MiniLynxTM: SMT Non-Isolated DC-DC Power Modules

8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 3A Output Current

July 24, 2020

Page 6

Characteristic Curves

The following figures provide typical characteristics for the Austin MiniLynxTM 12 V SMT modules at 25ºC.

EFFICIENCY,  (%)

70

72

74

76

78

80

82

84

86

88

0 0.6 1.2 1.8 2.4 3

VIN =14.0V

VIN = 12.0V

VIN = 8.3V

EFFICIENCY,  (%)

74

76

78

80

82

84

86

88

90

92

0 0.6 1.2 1.8 2.4 3

VIN = 14.0V

VIN =12.0V

VIN = 8.3V

OUTPUT CURRENT, IO (A)

Figure 1. Converter Efficiency versus Output Current (Vout

= 1.2Vdc).

Figure 4. Converter Efficiency versus Output Current (Vout

= 2.5Vdc).

EFFICIENCY,  (%)

70

72

74

76

78

80

82

84

86

88

0 0.6 1.2 1.8 2.4 3

VIN = 14.0V

VIN = 12.0V

VIN = 8.3V

EFFICIENCY,  (%)

71

74

77

80

83

86

89

92

95

0 0.6 1.2 1.8 2.4 3

VIN = 14.0V

VIN = 12.0V

VIN = 8.3V

OUTPUT CURRENT, IO (A)

Figure 2. Converter Efficiency versus Output Current (Vout

= 1.5Vdc).

Figure 5. Converter Efficiency versus Output Current (Vout

= 3.3Vdc).

EFFICIENCY,  (%)

72

74

76

78

80

82

84

86

88

90

0 0.6 1.2 1.8 2.4 3

VIN = 14.0V

VIN = 12.0V

VIN = 8.3V

EFFICIENCY,  (%)

72

75

78

81

84

87

90

93

96

99

0 0.6 1.2 1.8 2.4 3

VIN =14.0V

VIN = 12.0V

VIN = 8.3V

OUTPUT CURRENT, IO (A)

Figure 3. Converter Efficiency versus Output Current (Vout

= 1.8Vdc).

Figure 6. Converter Efficiency versus Output Current (Vout

= 5.0Vdc).

GE

Data Sheet

12V Austin MiniLynxTM: SMT Non-Isolated DC-DC Power Modules

8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 3A Output Current

July 24, 2020

Page 7

Characteristic Curves (continued)

The following figures provide typical characteristics for the Austin MiniLynxTM 12V SMT modules at 25ºC.

INPUT CURRENT, IIN (A)

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

7 8 9 10 11 12 13 14

Io=1.5A

Io=0A

Io=3A

OUTPUT CURRENT, OUTPUT VOLTAGE

IO (A) (1A/div) VO (V) (200mV/div)

INPUT VOLTAGE, VIN (V)

TIME, t (5 s/div)

Figure 7. Input voltage vs. Input Current

(Vout =3.3Vdc).

Figure 10. Transient Response to Dynamic Load Change

from 50% to 100% of full load (Vo = 3.3Vdc).

OUTPUT VOLTAGE

VO (V) (10mV/div)

OUTPUT CURRENT, OUTPUT VOLTAGE

IO (A) (1A/div) VO (V) (200mV/div)

TIME, t (1s/div)

TIME, t (5 s/div)

Figure 8. Typical Output Ripple and Noise

(VIN = 12.0V dc, Vo = 0.75Vdc, Io=3A).

Figure 11. Transient Response to Dynamic Load Change

from 100% to 50% of full load (Vo = 3.3 Vdc).

OUTPUT VOLTAGE

VO (V) (10mV/div)

OUTPUT CURRENT, OUTPUT VOLTAGE

IO (A) (2A/div) VO (V) (50mV/div)

TIME, t (1s/div)

TIME, t (50s/div)

Figure 9. Typical Output Ripple and Noise

(VIN = 12.0V dc, Vo = 3.3Vdc, Io=3A).

Figure 12. Transient Response to Dynamic Load Change

from 50% to 100% of full load (Vo = 3.3 Vdc, Cext = 2x150

μF Polymer Capacitors).

GE

Data Sheet

12V Austin MiniLynxTM: SMT Non-Isolated DC-DC Power Modules

8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 3A Output Current

July 24, 2020

Page 8

Characteristic Curves (continued)

The following figures provide typical characteristics for the Austin MiniLynxTM 12 V SMT modules at 25ºC.

OUTPUT CURRENT, OUTPUTVOLTAGE

IO (A) (1A/div) VO (V) (50mV/div)

INPUT VOLTAGE OUTPUT VOLTAGE

VIN (V) (10V/div) VO (V) (1V/div)

TIME, t (100s/div)

TIME, t (2ms/div)

Figure 13. Transient Response to Dynamic Load Change

from 100% of 50% full load (Vo = 3.3Vdc, Cext = 2x150 μF

Polymer Capacitors).

Figure 16. Typical Start-Up with application of Vin

(VIN = 12.0Vdc, Vo = 3.3Vdc, Io = 3A).

ON/OFF VOLTAGE OUTPUT VOLTAGE

VOn/off(V) (10V/div) VO (V) (1V/div)

ON/OFF VOLTAGE OUTPUT VOLTAGE

VOn/off(V) (10V/div) VO (V) (0.5V/div)

TIME, t (2ms/div)

Figure 14. Typical Start-Up Using Remote On/Off

(VIN = 12.0Vdc, Vo = 3.3Vdc, Io = 3A).

Figure 17 Typical Start-Up Using Remote On/Off with

Prebias (VIN = 12.0Vdc, Vo = 1.8Vdc, Io = 1.0A, Vbias

=1.0Vdc).

ON/OFF VOLTAGE OUTPUT VOLTAGE

VOn/off(V) (10V/div) VO (V) (1V/div)

OUTPUT CURRENT,

IO (A) (5A/div)

TIME, t (2ms/div)

TIME, t (10ms/div)

Figure 15. Typical Start-Up Using Remote On/Off with Low-

ESR external capacitors (7x150uF Polymer)

(VIN = 12.0Vdc, Vo = 3.3Vdc, Io = 3A, Co = 1050F).

Figure 18. Output short circuit Current

(VIN = 12.0Vdc, Vo = 0.75Vdc).

GE

Data Sheet

12V Austin MiniLynxTM: SMT Non-Isolated DC-DC Power Modules

8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 3A Output Current

July 24, 2020

Page 9

Characteristic Curves (continued)

The following figures provide thermal derating curves for the Austin MiniLynxTM 12 V SMT modules.

OUTPUT CURRENT, Io (A)

0

0.5

1

1.5

2

2.5

3

3.5

20 30 40 50 60 70 80 90

0 LFM

100 LFM

OUTPUT CURRENT, Io (A)

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

20 30 40 50 60 70 80 90

0 LFM

100 LFM

AMBIENT TEMPERATURE, TA OC

Figure 19. Derating Output Current versus Local Ambient

Temperature and Airflow (VIN = 12.0 Vdc, Vo=0.75Vdc).

Figure 22. Derating Output Current versus Local

Ambient Temperature and Airflow (VIN = 12 Vdc, Vo=5.0

Vdc).

OUTPUT CURRENT, Io (A)

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

20 30 40 50 60 70 80 90

0 LFM

100 LFM

AMBIENT TEMPERATURE, TA OC

Figure 20. Derating Output Current versus Local Ambient

Temperature and Airflow (VIN = 12.0Vdc, Vo=1.8 Vdc).

OUTPUT CURRENT, Io (A)

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

20 30 40 50 60 70 80 90

0 LFM

100 LFM

AMBIENT TEMPERATURE, TA OC

Figure 21. Derating Output Current versus Local Ambient

Temperature and Airflow (VIN = 12.0Vdc, Vo=3.3 Vdc).

Test Configurations

GE

Data Sheet

12V Austin MiniLynxTM: SMT Non-Isolated DC-DC Power Modules

8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 3A Output Current

July 24, 2020

Page 10

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 23. 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.

V

O

(+)

COM

1uF

.

RESISTIVE

LOAD

SCOPE

COPPER STRIP

GROUND PLANE

10uF

Figure 24. 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 25. Output Voltage and Efficiency Test Setup.



=

VO.

IO

VIN.

IIN

x

100

%

Efficiency

Design Considerations

Input Filtering

The Austin MiniLynxTM 12V SMT module should be connected

to a low-impedance source. A highly inductive source can

affect the stability of the module. An input capacitance

must be placed directly adjacent to the input pin of the

module, to minimize input ripple voltage and ensure module

stability in the presence of inductive traces that supply input

voltage to the module.

In a typical application, a 22 µF low-ESR ceramic capacitors

will be sufficient to provide adequate ripple voltage at the

input of the module. To further minimize ripple voltage at

the input, additional ceramic capacitors are recommended

at the input of the module. Figure 26 shows input ripple

voltage (mVp-p) for various outputs with 10µF and with a

22µF ceramic capacitor at full load.

Figure 26. Input ripple voltage for various outputs with a

10 µF or a 22 µF ceramic capacitor at the input (full-load).

0

50

100

150

200

250

300

350

0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5

1 x 10uF

1 x 22uF

GE

Data Sheet

12V Austin MiniLynxTM: SMT Non-Isolated DC-DC Power Modules

8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 3A Output Current

July 24, 2020

Page 11

Design Considerations (continued)

Output Filtering

The Austin MiniLynxTM 12 V SMT module is designed for low

output ripple voltage and will meet the maximum output

ripple specification with 1 µF ceramic and 10 µF tantalum

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. For stable operation of the module,

limit the capacitance to less than the maximum output

capacitance as specified in the electrical specification table.

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 ANSI/UL* 62368-1 and CAN/CSA+ C22.2 No. 62368-1

Recognized, DIN VDE 0868-1/A11:2017 (EN62368-

1:2014/A11:2017)

For the converter output to be considered meeting the

Requirements of safety extra-low voltage (SELV) or ES1, the

input must meet SELV/ES1 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 6A in the positive input lead.

GE

Data Sheet

12V Austin MiniLynxTM: SMT Non-Isolated DC-DC Power Modules

8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 3A Output Current

July 24, 2020

Page 12

Feature Description

Remote On/Off

Austin MiniLynxTM 12V SMT power modules feature an

On/Off pin for remote On/Off operation. Two On/Off logic

options are available in the Austin MiniLynxTM 12V series

modules. Positive Logic On/Off signal, device code suffix “4”,

turns the module ON during a logic High on the On/Off pin

and turns the module OFF during a logic Low. Negative

logic On/Off signal, no device code suffix, turns the module

OFF during logic High and turns the module ON during logic

Low.

For positive logic modules, the circuit configuration for using

the On/Off pin is shown in Figure 27. The On/Off pin is an

open collector/drain logic input signal (Von/Off) that is

referenced to ground. During a logic-high (On/Off pin is

pulled high internal to the module) when the transistor Q1 is

in the Off state, the power module is ON. Maximum

allowable leakage current of the transistor when Von/off =

VIN,max is 10µA. Applying a logic-low when the transistor Q1

is turned-On, the power module is OFF. During this state

VOn/Off must be less than 0.3V. When not using positive

logic On/off pin, leave the pin unconnected or tie to VIN.

Figure 27. Circuit configuration for using positive logic

On/OFF.

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

shown is Figure 28. The On/Off pin is pulled high with an

external pull-up resistor (typical Rpull-up = 68k, +/- 5%). When

transistor Q1 is in the Off state, logic High is applied to the

On/Off pin and the power module is Off. The minimum

On/off voltage for logic High on the On/Off pin is 2.5 Vdc. To

turn the module ON, logic Low is applied to the On/Off pin by

turning ON Q1. When not using the negative logic On/Off,

leave the pin unconnected or tie to GND.

Figure 28. Circuit configuration for using negative logic

On/OFF.

Overcurrent Protection

To provide protection in a fault (output overload) condition,

the unit is equipped with internal current-limiting circuitry

and can endure current limiting continuously. At the point of

current-limit inception, the unit enters hiccup mode. The unit

operates normally once the output current is brought back

into its specified range. The typical average output current

during hiccup is 3.5A.

Input Undervoltage Lockout

At input voltages below the input undervoltage lockout limit,

module operation is disabled. The module will begin to

operate at an input voltage above the undervoltage lockout

turn-on threshold.

Overtemperature Protection

To provide over temperature protection in a fault condition,

the unit relies upon the thermal protection feature of the

controller IC. The unit will shutdown if the thermal reference

point Tref2, (see Figure 31) exceeds 140oC (typical), but the

thermal shutdown is not intended as a guarantee that the

unit will survive temperatures beyond its rating. The module

will automatically restarts after it cools down.

Q1

R2

R1 Q2

R3

R4

Q3 CSS

GND

VIN+

ON/OFF

PWM Enable

+

_

ON/OFF

V

ION/OFF

MODULE

Q1

R1

R2

Q2 CSS

GND

PWM Enable

ON/OFF

VIN+

ON/OFF

_

+

V

I

MODULE

pull-up

R

ON/OFF

GE

Data Sheet

12V Austin MiniLynxTM: SMT Non-Isolated DC-DC Power Modules

8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 3A Output Current

July 24, 2020

Page 13

Feature Descriptions (continued)

Output Voltage Programming

The output voltage of the Austin MiniLynxTM 12V can be

programmed to any voltage from 0.75Vdc to 5.5Vdc by

connecting a resistor (shown as Rtrim in Figure 29) between

Trim and GND pins of the module. Without an external

resistor between Trim and GND pins, the output of the

module will be 0.7525Vdc. To calculate the value of the trim

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

equation:













−

−

=1000

7525.0

10500

Vo

Rtrim

Rtrim is the external resistor in Ω

Vo is the desired output voltage

For example, to program the output voltage of the Austin

MiniLynxTM 12V module to 1.8V, Rtrim is calculated as

follows:











−

−

=1000

7525.08.1

10500

Rtrim

= kRtrim 024.9

V

O

(+)

TRIM

GND

R

trim

LOAD

V

IN

(+)

ON/OFF

Figure 29. Circuit configuration to program output

voltage using an external resistor.

Table 1 provides Rtrim values required for some common

output voltages.

Table 1

VO, set (V)

Rtrim (KΩ)

0.7525

Open

1.2

22.46

1.5

13.05

1.8

9.024

2.5

5.009

3.3

3.122

5.0

1.472

Using 1% tolerance trim resistor, set point tolerance of ±2%

is achieved as specified in the electrical specification. The

POL Programming Tool, available at

www.gecriticalpower.com under the Design Tools section,

helps determine the required external trim resistor needed

for a specific output voltage.

Voltage Margining

Output voltage margining can be implemented in the Austin

MiniLynxTM 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 the Output pin for margining-down. Figure 30

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 30. Circuit Configuration for margining Output

voltage.

Vo

Austin Lynx or

Lynx II Series

GND

Trim

Q1

Rtrim

Rmargin-up

Q2

Rmargin-down

GE

Data Sheet

12V Austin MiniLynxTM: SMT Non-Isolated DC-DC Power Modules

8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 3A Output Current

July 24, 2020

Page 14

Thermal Considerations

Power modules operate in a variety of thermal

environments; however, sufficient cooling should be

provided to help ensure reliable operation.

Considerations include ambient temperature, airflow,

module power dissipation, and the need for increased

reliability. A reduction in the operating temperature of the

module will result in an increase in reliability. The thermal

data presented here is based on physical measurements

taken in a wind tunnel. The test set-up is shown in Figure

32. Note that the airflow is parallel to the long axis of the

module as shown in figure 31. The derating data applies to

airflow in either direction of the module’s long axis.

Air Flow

Tref

Figure 31. Tref Temperature measurement location.

The thermal reference point, Tref used in the specifications is

shown in Figure 32. For reliable operation this temperature

should not exceed 115oC.

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 32. Thermal Test Set-up.

Heat Transfer via Convection

Increased airflow over the module enhances the heat

transfer via convection. Thermal derating curves showing

the maximum output current that can be delivered by

various module versus local ambient temperature (TA) for

natural convection and up to 0.5m/s (100 ft./min) are shown

in the Characteristics Curves section.

Air

flow

x

Power Module

Wind Tunnel

PWBs

5.97_

(0.235)

76.2_

(3.0)

Probe Location

for measuring

airflow and

ambient

temperature

25.4_

(1.0)

GE

Data Sheet

12V Austin MiniLynxTM: SMT Non-Isolated DC-DC Power Modules

8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 3A Output Current

July 24, 2020

Page 15

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.)

Bottom View

Co-planarity (max): 0.102 [0.004]

Side View

FUNCTION

1

On/Off

2

VIN

3

GND

4

Trim

5

VOUT

GE

Data Sheet

12V Austin MiniLynxTM: SMT Non-Isolated DC-DC Power Modules

8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 3A Output Current

July 24, 2020

Page 16

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

2

VIN

3

GND

4

Trim

5

VOUT

GE

Data Sheet

12V Austin MiniLynxTM: SMT Non-Isolated DC-DC Power Modules

8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 3A Output Current

July 24, 2020

Page 17

Packaging Details

The Austin MiniLynxTM 12 V SMT version is 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 diameter: 330.2 mm (13.00)

Inside diameter: 177.8 mm (7.00”)

Tape Width: 44.0 mm (1.73”)

GE

Data Sheet

12V Austin MiniLynxTM: SMT Non-Isolated DC-DC Power Modules

8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 3A Output Current

July 24, 2020

Page 18

Surface Mount Information

Pick and Place

The Austin MiniLynxTM 12 V SMT 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

placing. The label meets all the requirements for surface

mount processing, as well as safety standards and is able to

withstand maximum reflow temperature. The label also

carries product information such as product code, serial

number and location of manufacture.

Figure 33. Pick and Place Location.

Nozzle Recommendations

The module weight has been kept to a minimum by using

open frame construction. Even so, these modules have a

relatively large mass when compared to conventional SMT

components. Variables such as nozzle size, tip style,

vacuum pressure and pick & placement speed should be

considered to optimize this process. The minimum

recommended nozzle diameter for reliable operation is

3mm. The maximum nozzle outer diameter, which will safely

fit within the allowable component spacing, is 8 mm max.

Tin Lead Soldering

The Austin MiniLynxTM 12V SMT power modules are lead free

modules and can be soldered either in a lead-free solder

process or in a conventional Tin/Lead (Sn/Pb) process. It is

recommended that the customer review data sheets in

order to customize the solder reflow profile for each

application board assembly. The following instructions must

be observed when soldering these units. Failure to observe

these instructions may result in the failure of or cause

damage to the modules, and can adversely affect long-term

reliability.

In a conventional Tin/Lead (Sn/Pb) solder process peak

reflow temperatures are limited to less than 235oC.

Typically, the eutectic solder melts at 183oC, wets the land,

and subsequently wicks the device connection. Sufficient

time must be allowed to fuse the plating on the connection

to ensure a reliable solder joint. There are several types of

SMT reflow technologies currently used in the industry.

These surface mount power modules can be reliably

soldered using natural forced convection, IR (radiant

infrared), or a combination of convection/IR. For reliable

soldering the solder reflow profile should be established by

accurately measuring the modules CP connector

temperatures.

REFLOW TEMP (C)

REFLOW TIME (S)

Figure 34. Reflow Profile for Tin/Lead (Sn/Pb) process.

MAX TEMP SOLDER (C)

Figure 35. Time Limit Curve Above 205oC Reflow for Tin

Lead (Sn/Pb) process.

GE

Data Sheet

12V Austin MiniLynxTM: SMT Non-Isolated DC-DC Power Modules

8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 3A Output Current

July 24, 2020

Page 19

Surface Mount Information (continued)

Lead Free Soldering

The –Z version Austin MiniLynx 12V SMT modules are lead-

free (Pb-free) and RoHS compliant and are both forward and

backward compatible in a Pb-free and a SnPb 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. 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-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 Figure. 36.

MSL Rating

The Austin MiniLynx 12V SMT 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.

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).

Figure 36. Recommended linear reflow profile using

Sn/Ag/Cu solder.

Per J-STD-020 Rev. C

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

Data Sheet

12V Austin MiniLynxTM: SMT Non-Isolated DC-DC Power Modules

8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 3A Output Current

Contact Us

For more information, call us at

USA/Canada:

+1 888 546 3243, or +1 972 244 9288

Asia-Pacific:

+86-21-53899666

Europe, Middle-East and Africa:

+49.89.878067-280

Go.ABB/Industrial

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.

July 24, 2020

Version 1_1

Ordering Information

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

Table 3. Device Codes

Device Code

Input

Voltage

Output

Voltage

Output

Current

Efficiency

3.3V@ 3A

On/Off

Logic

Connector

Type

Comcodes

AXA003A0X-SRZ

8.3 – 14Vdc

0.75 – 5.5Vdc

3 A

89.0 %

Negative

SMT

CC109101276

AXA003A0X4-SRZ

8.3 – 14Vdc

0.75 – 5.5Vdc

3 A

89.0 %

Positive

SMT

CC109102266

-Z refers to RoHS compliant Versions