109100014/AXH003A0X4-SRZ - ABB

GE

Data Sheet

February 16, 2021

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

2.4Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc 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 – 94% at 3.3V full load (VIN = 5.0V)

▪ 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

▪ High Reliability:

Calculated MTBF = 11.9M hours at 25oC Full-load

▪ Constant switching frequency (300 kHz)

▪ Output voltage programmable from 0.75 Vdc to 3.63Vdc

via external resistor

▪ Line Regulation: 0.4% (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 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 94.0% at 3.3V output. These modules provide a precisely regulated output voltage

programmable via an external resistor from 0.75Vdc to 3.63Vdc over a wide range of input voltage (VIN = 2.4 – 5.5Vdc). Their

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

* 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

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

2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current

February 16, 2021

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

5.8

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 ≤ VIN – 0.5V

VIN

2.4

⎯

5.5

Vdc

Maximum Input Current

All

IIN,max

3.0

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

10

mA

(VIN = 5.0Vdc, IO = 0, module enabled)

VO,set = 3.3Vdc

IIN,No load

17

mA

Input Stand-by Current

All

IIN,stand-by

0.6

mA

(VIN = 5.0Vdc, module disabled)

Inrush Transient

All

I2t

0.04

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

35

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

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

2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current

February 16, 2021

Page 3

Electrical Specifications (continued)

Parameter

Device

Symbol

Min

Typ

Max

Unit

Output Voltage Set-point

All

VO, set

-2.0

VO, set

+2.0

% VO, set

(VIN=IN, min, IO=IO, max, TA=25°C)

Output Voltage

All

VO, set

-3%

⎯

+3%

% VO, set

(Over all operating input voltage, resistive load, and

temperature conditions until end of life)

Adjustment Range

All

VO

0.7525

3.63

Vdc

Selected by an external resistor

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

⎯

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

⎯

25

50

mVpk-pk

External Capacitance

ESR ≥ 1 mΩ

All

CO, max

⎯

1000

μF

ESR ≥ 10 mΩ

All

CO, max

⎯

5000

μF

Output Current

All

Io

0

3

Adc

Output Current Limit Inception (Hiccup Mode )

All

IO, lim

⎯

220

⎯

% Io

(VO= 90% of VO, set)

Output Short-Circuit Current

All

IO, s/c

⎯

2

⎯

Adc

(VO≤250mV) ( Hiccup Mode )

Efficiency

VO,set =

0.75Vdc

η

81.5

%

VIN= VIN, nom, TA=25°C

VO, set = 1.2Vdc

η

87.0

%

IO=IO, max , VO= VO,set

VO,set = 1.5Vdc

η

89.0

%

VO,set = 1.8Vdc

η

90.0

%

VO,set = 2.5Vdc

η

93.0

%

VO,set = 3.3Vdc

η

94.0

%

Switching Frequency

All

fsw

⎯

300

⎯

kHz

Dynamic Load Response

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

All

Vpk

⎯

250

⎯

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

⎯

50

⎯

s

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

All

Vpk

⎯

250

⎯

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

⎯

50

⎯

s

GE

Data Sheet

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

2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current

February 16, 2021

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

⎯

60

⎯

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

⎯

60

⎯

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 (IO=IO, max, TA=25°C)

11,965,153

Hours

Weight

⎯

2.8 (0.1)

⎯

g (oz.)

GE

Data Sheet

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

2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current

February 16, 2021

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

1.5

―

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

―

3.9

―

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

―

3.9

―

msec

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

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

All

Trise

―

4.2

8.5

msec

Output voltage overshoot – Startup

―

1

% VO, set

IO= IO, max; VIN = 3.0 to 5.5Vdc, TA = 25 oC

Remote Sense Range

―

0.5

Overtemperature Protection

All

Tref

⎯

140

⎯

°C

(See Thermal Consideration section)

Input Undervoltage Lockout

Turn-on Threshold

All

2.2

V

Turn-off Threshold

All

2.0

V

GE

Data Sheet

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

2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current

February 16, 2021

Page 6

Characteristic Curves

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

EFFICIENCY,  (%)

70

73

76

79

82

85

88

91

94

0 0.6 1.2 1.8 2.4 3

VIN = 5.0V

VIN = 3.3V

VIN = 2.5V

EFFICIENCY,  (%)

73

76

79

82

85

88

91

94

97

0 0.6 1.2 1.8 2.4 3

VIN = 5.0V

VIN = 3.3V

VIN = 2.5V

OUTPUT CURRENT, IO (A)

Figure 1. Converter Efficiency versus Output Current (Vout =

0.75Vdc).

Figure 4. Converter Efficiency versus Output Current (Vout =

1.8Vdc).

EFFICIENCY,  (%)

70

73

76

79

82

85

88

91

94

0 0.6 1.2 1.8 2.4 3

VIN = 5.0V

VIN = 3.3V

VIN = 2.5V

EFFICIENCY,  (%)

OUTPUT CURRENT, IO (A)

Figure 2. Converter Efficiency versus Output Current (Vout =

1.2Vdc).

Figure 5. Converter Efficiency versus Output Current (Vout =

2.5Vdc).

EFFICIENCY,  (%)

72

75

78

81

84

87

90

93

96

0 0.6 1.2 1.8 2.4 3

VIN = 5.0V

VIN = 3.3V

VIN = 2.5V

EFFICIENCY,  (%)

OUTPUT CURRENT, IO (A)

Figure 3. Converter Efficiency versus Output Current (Vout =

1.5Vdc).

Figure 6. Converter Efficiency versus Output Current (Vout =

3.3Vdc).

74

77

80

83

86

89

92

95

98

0 0.6 1.2 1.8 2.4 3

VIN = 5.0V

VIN = 4.0V

VIN = 3.3V

75

78

81

84

87

90

93

96

99

0 0.6 1.2 1.8 2.4 3

VIN = 5.5V

VIN = 5.0V

VIN = 4.0V

GE

Data Sheet

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

2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current

February 16, 2021

Page 7

Characteristic Curves (continued)

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

INPUT CURRENT, IIN (A)

0

0.5

1

1.5

2

2.5

3

3.5

0 1 2 3 4 5

Io=1.5A

Io=0A

Io=3A

OUTPUT CURRENT, OUTPUT VOLTAGE

IO (A) (2A/div) VO (V) (100mV/div)

INPUT VOLTAGE, VIN (V)

TIME, t (20 s/div)

Figure 7. Input voltage vs. Input Current

(Vout =2.5Vdc).

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) (2A/div) VO (V) (100mV/div)

TIME, t (1s/div)

TIME, t (20 s/div)

Figure 8. Typical Output Ripple and Noise

(VIN = 5.0V 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) (20mV/div)

TIME, t (1s/div)

TIME, t (100s/div)

Figure 9. Typical Output Ripple and Noise

(VIN = 5.0V 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

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

2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current

February 16, 2021

Page 8

Characteristic Curves (continued)

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

OUTPUT CURRENT, OUTPUTVOLTAGE

IO (A) (2A/div) VO (V) (20mV/div)

INPUT VOLTAG OUTPUT VOLTAGE VIN

(V) (2V/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 = 5.0Vdc, Vo = 3.3Vdc, Io = 3A).

ON/OFF VOLTAGE OUTPUT VOLTAGE

VOn/off(V) (2V/div) VO (V) (1V/div)

ON/OFF VOLTAGE OUTPUT VOLTAGE

VOn/off(V) (2V/div) VO (V) (0.5V/div)

TIME, t (2ms/div)

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

(VIN = 5.0Vdc, Vo = 3.3Vdc, Io = 3A).

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

Prebias (VIN = 3.3Vdc, Vo = 1.8Vdc, Io = 1.0A, Vbias

=1.0Vdc).

ON/OFF VOLTAGE OUTPUT VOLTAGE

VOn/off(V) (2V/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 = 5.0Vdc, Vo = 3.3Vdc, Io = 3A, Co = 1050F).

Figure 18. Output short circuit Current

(VIN = 5.0Vdc, Vo = 0.75Vdc).

GE

Data Sheet

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

2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current

February 16, 2021

Page 9

Characteristic Curves (continued)

The following figures provide thermal derating curves for the Austin MiniLynxTM 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

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

AMBIENT TEMPERATURE, TA OC

Figure 19. Derating Output Current versus Local Ambient

Temperature and Airflow (VIN = 5.0, Vo=3.3Vdc).

Figure 22. Derating Output Current versus Local Ambient

Temperature and Airflow (VIN = 3.3dc, Vo=2.5 Vdc).

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

0

0.5

1

1.5

2

2.5

3

3.5

20 30 40 50 60 70 80 90

0 LFM

AMBIENT TEMPERATURE, TA OC

Figure 20. Derating Output Current versus Local Ambient

Temperature and Airflow (VIN = 5.0Vdc, Vo=1.8 Vdc).

Figure 23. Derating Output Current versus Local Ambient

Temperature and Airflow (VIN = 3.3dc, Vo=1.2 Vdc).

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

0

0.5

1

1.5

2

2.5

3

3.5

20 30 40 50 60 70 80 90

0 LFM

AMBIENT TEMPERATURE, TA OC

Figure 21. Derating Output Current versus Local Ambient

Temperature and Airflow (VIN = 5.0Vdc, Vo=0.75 Vdc).

Figure 24. Derating Output Current versus Local Ambient

Temperature and Airflow (VIN = 3.3dc, Vo=0.75 Vdc).

Test Configurations

GE

Data Sheet

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

2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current

February 16, 2021

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 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.

V

O

(+)

COM

1uF

.

RESISTIVE

LOAD

SCOPE

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 Austin MiniLynxTM 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.

To minimize input voltage ripple, low-ESR polymer and

ceramic capacitors are recommended at the input of the

module. Figure 28 shows the input ripple voltage (mVp-p) for

various outputs with 1x22µF (TDK: C3225X5R0J226V) ceramic

capacitor at the input of the module. Figure 29 shows the

input ripple with 1x47µF (TDK: C3225X5R0J476M) ceramic

capacitor at full load.

Input Ripple Voltage (mVp-p)

0

20

40

60

80

100

120

140

160

0 0.5 1 1.5 2 2.5 3 3.5

3.3Vin

5Vin

Output Voltage (Vdc)

Figure 28. Input ripple voltage for various outputs with 1x22

µF ceramic capacitor at the input (full-load).

Input Ripple Voltage (mVp-p)

0

20

40

60

80

100

120

140

160

0 0.5 1 1.5 2 2.5 3 3.5

3.3Vin

5Vin

Output Voltage (Vdc)

Figure 29. Input ripple voltage for various outputs with 1x47

µF ceramic capacitor at the input (full load).

GE

Data Sheet

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

2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current

February 16, 2021

Page 11

Design Considerations (continued)

Output Filtering

The Austin MiniLynxTM 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/UL62368-1 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

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

2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current

February 16, 2021

Page 12

Feature Description

Remote On/Off

The Austin MiniLynxTM SMT power modules feature an On/Off

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

are available in the Austin MiniLynxTM 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 on the On/Off pin 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 30. 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.

Q1

R2

R1 Q2

R3

R4

Q3 CSS

GND

VIN+

ON/OFF

PWM Enable

+

_

ON/OFF

V

ION/OFF

MODULE

Figure 30. Circuit configuration for using positive logic

On/OFF.

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

shown is Figure 31. The On/Off pin is pulled high with an

external pull-up resistor (typical Rpull-up = 5k, +/- 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 1.5Vdc. 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.

Q1

R1

R2

Q2 CSS

GND

PWM Enable

ON/OFF

VIN+

ON/OFF

_

+

V

I

MODULE

pull-up

R

ON/OFF

Figure 31. 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 2A.

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 Tref, 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 restart after it cools down.

Output Voltage Programming

The output voltage of the Austin MiniLynxTM SMT can be

programmed to any voltage from 0.75 Vdc to 3.63 Vdc by

connecting a single resistor (shown as Rtrim in Figure 32)

between the TRIM and GND pins of the module. Without an

external resistor between TRIM pin and the ground, the

output voltage of the module is 0.7525 Vdc. To calculate the

value of the resistor Rtrim for a particular output voltage Vo,

use the following equation:













−

−

=5110

7525.0

21070

Vo

Rtrim

Feature Descriptions (continued)

Output Voltage Programming (continued)

GE

Data Sheet

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

2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current

February 16, 2021

Page 13

For example, to program the output voltage of the Austin

MiniLynxTM module to 1.8 Vdc, Rtrim is calculated is follows:











−

−

=5110

7525.08.1

21070

Rtrim

= kRtrim 004.15

V

O

(+)

TRIM

GND

R

trim

LOAD

V

IN

(+)

ON/OFF

Figure 32. 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

41.973

1.5

23.077

1.8

15.004

2.5

6.947

3.3

3.160

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 33 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.

Vo

Austin Lynx or

Lynx II Series

GND

Trim

Q1

Rtrim

Rmargin-up

Q2

Rmargin-down

Figure 33. Circuit Configuration for margining Output

voltage.

GE

Data Sheet

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

2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current

February 16, 2021

Page 14

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 35. Note that the

airflow is parallel to the long axis of the module as shown in

figure 34. The derating data applies to airflow in either

direction of the module’s long axis.

Air Flow

Tref

Figure 34. Tref Temperature measurement location.

The thermal reference point, Tref used in the specifications is

shown in Figure 34. 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 35. Thermal Test Set-up.

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

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

2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current

February 16, 2021

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.)

Co-planarity (max): 0.102 [0.004]

BOTTOM VIEW SIDE VIEW

GE

Data Sheet

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

2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current

February 16, 2021

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

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

2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current

February 16, 2021

Page 17

Packaging Details

The Austin MiniLynxTM 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

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

2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current

February 16, 2021

Page 18

Surface Mount Information

Pick and Place

The Austin MiniLynxTM 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 36. 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 SMT power modules are lead free

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

process or 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.

The Austin MiniLynxTM SMT power modules are lead free

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

process or 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.

REFLOW TEMP (C)

REFLOW TIME (S)

Figure 37. Reflow Profile for Tin/Lead (Sn/Pb) process.

MAX TEMP SOLDER (C)

Figure 38. Time Limit Curve Above 205oC Reflow for Tin Lead

(Sn/Pb) process.

GE

Data Sheet

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

2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current

February 16, 2021

Page 19

Surface Mount Information (continued)

Lead Free Soldering

The –Z version Austin MiniLynx 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. 39.

MSL Rating

The Austin MiniLynxTM SMT modules have a MSL rating of 2a.

Storage and Handling

The Austin MiniLynxTM modules have a MSL rating of 1. 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).

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

Figure 39. Recommended linear reflow profile using

Sn/Ag/Cu solder.

GE

Data Sheet

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

2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current

Contact Us

For more information, call us at

USA/Canada:

+1 877 546 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.

February 16, 2021

Version 1_2

Ordering Information

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

Table 2. Device Codes

Device Code

Input

Voltage Range

Output

Voltage

Output

Current

Efficiency

3.3V@ 3A

On/Off

Logic

Connector

Type

Comcodes

AXH003A0X-SRZ

2.4 – 5.5Vdc

0.75 – 3.63Vdc

3 A

94.0 %

Negative

SMT

CC109101301

AXH003A0X4-SRZ

2.4 – 5.5Vdc

0.75 – 3.63Vdc

3 A

94.0 %

Positive

SMT

109100014

-Z refers to RoHS-compliant codes