GE Industrial Solutions Austin Minilynx SIP User Manual

Data Sheet October 2, 2009

Austin MinilynxTM SIP Non-isolated Power Modules:

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

RoHS Compliant

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

Features

 Compliant to RoHS EU Directive 2002/95/EC (-Z

versions)

 Compliant to ROHS EU Directive 2002/95/EC with

lead solder exemption (non-Z versions)

 Delivers up to 3A output current

 High efficiency – 94% at 3.3V full load (V

 Small size and low profile:

22.9 mm x 10.2 mm x 6.63 mm

(0.90 in. x 0.40 in. x 0.261 in.)

 Low output ripple and noise

 High Reliability:

Calculated MTBF = 11.9M hours at 25

 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)

 UL* 60950-1Recognized, CSA

03 Certified, and VDE Licensed

 ISO** 9001 and ISO 14001 certified manufacturing

facilities

‡

†

0805:2001-12 (EN60950-1)

C22.2 No. 60950-1-

= 5.0V)

IN

o

C Full-load

Description

Austin MiniLynxTM SIP (single-in-line) 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 (V

= 2.4 – 5.5Vdc). Their open-frame construction and small footprint enable designers to develop cost- and

IN

space-efficient solutions. In addition to sequencing, standard features include remote On/Off, programmable output voltage and over current protection.

* UL is a re gistered trademark of Underwriters Laboratories, Inc.

†

CSA is a reg istered trademark of Canadian Standards Associ ation.

‡

VDE is a t rademark of Verband Deutscher Elektrotechniker e.V.

** ISO is a registered trademark of the International Orga nization of Standards

Document No: DS04-040 ver. 1.33

PDF name: minilynx_sip_ds.pdf

Data Sheet October 2, 2009

Austin MiniLynx

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

TM

SIP Non-isolated Power Modules:

Absolute Maximum Ratings

Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only, functional operation of the device is not implied at these or any other conditions in excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect the device reliability.

Parameter Device Symbol Min Max Unit

Input Voltage All V

Continuous

Operating Ambient Temperature All T

IN

A

-0.3 5.8 Vdc

-40 85 °C

(see Thermal Considerations section)

Storage Temperature All T

stg

-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 V

Maximum Input Current All I

(VIN= V

IN, min

to V

IN, max

, IO=I

O, max VO,set

= 3.3Vdc)

Input No Load Current V

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

≤ V

– 0.5V VIN 2.4

O,set

IN

IN,max

= 0.75Vdc I

O,set

= 3.3Vdc I

O,set

IN,No load

⎯

5.5 Vdc

3.0 Adc

10 mA

17 mA

Input Stand-by Current All I

0.6 mA

IN,stand-by

(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; V V

= I

IN, max, IO

; See Test configuration section)

Omax

IN, min

to

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 fastacting 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.

LINEAGE POWER 2

Data Sheet October 2, 2009

Austin MiniLynx

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

TM

SIP Non-isolated Power Modules:

Electrical Specifications (continued)

Parameter Device Symbol Min Typ Max Unit

Output Voltage Set-point All V

(VIN=

IN, min

, IO=I

, TA=25°C)

O, max

Output Voltage All V

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

Adjustment Range All V

Selected by an external resistor

O, set

O

Output Regulation

Line (VIN=V

Load (IO=I

Temperature (T

IN, min

O, min

to V

to I

ref=TA, min

) All

IN, max

) All

O, max

to T

) All ⎯ 0.4

A, max

Output Ripple and Noise on nominal output

(VIN=V

IN, nom

and IO=I

O, min

to I

O, max

Cout = 1μF ceramic//10μFtantalum capacitors)

RMS (5Hz to 20MHz bandwidth) All

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

External Capacitance

ESR ≥ 1 mΩ All C

ESR ≥ 10 mΩ All C

Output Current All I

Output Current Limit Inception (Hiccup Mode ) All I

(VO= 90% of V

)

O, set

Output Short-Circuit Current All I

(VO≤250mV) ( Hiccup Mode )

Efficiency V

VIN= V

IO=I

, TA=25°C V

IN, nom

= V

O, max , VO

V

O,set

V

= 0.75Vdc η 81.5 %

O,set

= 1.2Vdc η 87.0 %

O, set

= 1.5Vdc η 89.0 %

O,set

= 1.8Vdc η 90.0 %

O,set

= 2.5Vdc η 93.0 %

O,set

= 3.3Vdc η 94.0 %

O,set

Switching Frequency All f

O, max

o

O, lim

O, s/c

sw

Dynamic Load Response

(dIo/dt=2.5A/μs; VIN = V

IN, nom

; TA=25°C)

Load Change from Io= 50% to 100% of Io,max; 1μF ceramic// 10 μF tantalum

All V

pk

Peak Deviation

Settling Time (Vo<10% peak deviation)

(dIo/dt=2.5A/μs; VIN = V

IN, nom

; TA=25°C)

Load Change from Io= 100% to 50%of Io,max: 1μF ceramic// 10 μF tantalum

All t

All V

s

pk

Peak Deviation

Settling Time (Vo<10% peak deviation)

All t

s

-2.0 V

-3%

+2.0 % V

O, set

⎯

+3% % V

0.7525 3.63 Vdc

⎯

0.4

⎯

10 15 mV

25 50 mV

% V

⎯ ⎯

1000 μF

3000 μF

0 3 Adc

⎯

220

2

⎯

300

250

50

250

50

⎯

⎯ μs

⎯

⎯ μs

O, set

pk-pk

% I

Adc

kHz

mV

rms

o

LINEAGE POWER 3

Data Sheet October 2, 2009

Austin MiniLynx

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

TM

SIP Non-isolated Power Modules:

Electrical Specifications (continued)

Parameter Device Symbol Min Typ Max Unit

Dynamic Load Response

(dIo/dt=2.5A/μs; V VIN = V

Load Change from Io= 50% to 100% of Io,max; Co = 2x150 μF polymer capacitors

Peak Deviation

Settling Time (Vo<10% peak deviation)

(dIo/dt=2.5A/μs; VIN = V

Load Change from Io= 100% to 50%of Io,max: Co = 2x150 μF polymer capacitors

Peak Deviation

Settling Time (Vo<10% peak deviation)

IN, nom

; TA=25°C)

All V

All t

All V

All t

pk

s

pk

s

⎯

60

100

60

100

⎯

⎯ μs

⎯

⎯ μs

mV

General Specifications

Parameter Min Typ Max Unit

Calculated MTBF (IO=I

Weight

, TA=25°C) 11,965,153 Hours

O, max

⎯

2.8 (0.1)

⎯

g (oz.)

LINEAGE POWER 4

Data Sheet October 2, 2009

Austin MiniLynx

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

TM

SIP Non-isolated Power Modules:

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 ― ― 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 ― V

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=I

Case 1: On/Off input is set to Logic Low (Module ON) and then input power is applied (delay from instant at which V

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)

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

Output voltage overshoot – Startup ―

IO= I

Remote Sense Range ― ― 0.5 Overtemperature Protection

(See Thermal Consideration section)

Input Undervoltage Lockout

Turn-on Threshold All

Turn-off Threshold All

= V

O, max , VIN

o,set to 90% of Vo, set)

; VIN = 2.4 to 5.5Vdc, TA = 25 oC

O, max

= 25 oC, )

IN, nom, TA

=V

IN

until Vo=10% of Vo,set)

IN, min

All Tdelay ― 4 ― msec

All Trise

All T

ref

V

IN, max

Vdc

IN,max

― 4 ― msec

1

⎯

2.2 V

2.0 V

140

⎯

% V

°C

O, set

LINEAGE POWER 5

Data Sheet October 2, 2009

Austin MiniLynx

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

TM

SIP Non-isolated Power Modules:

Characteristic Curves

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

94

91

88

85

82

79

76

73

EFFICIENCY, η (%)

70

0 0 .6 1.2 1.8 2 .4 3

VIN = 2.5V

VIN = 3.3V

VIN = 5.0V

OUTPUT CURRENT, IO (A)

Figure 1. Converter Efficiency versus Output Current (Vout = 0.75Vdc).

94

91

88

85

82

79

76

73

EFFICIENCY, η (%)

70

0 0.6 1.2 1.8 2.4 3

VIN = 2.5V

VIN = 3.3V

VIN = 5.0V

OUTPUT CURRENT, IO (A)

Figure 2. Converter Efficiency versus Output Current (Vout = 1.2Vdc).

96

93

90

87

84

81

78

75

EFFICIENCY, η (%)

72

0 0.6 1.2 1.8 2.4 3

VIN = 2.5V

VIN = 3.3V

VIN = 5.0V

97

94

91

88

85

82

79

76

EFFICIENCY, η (%)

73

00.61.21.82.43

OUTPUT CURRENT, IO (A)

Figure 4. Converter Efficiency versus Output Current (Vout = 1.8Vdc).

98

95

92

89

86

83

80

77

EFFICIENCY, η (%)

74

0 0 .6 1.2 1.8 2.4 3

OUTPUT CURRENT, IO (A)

Figure 5. Converter Efficiency versus Output Current (Vout = 2.5Vdc).

99

96

93

90

87

84

81

78

EFFICIENCY, η (%)

75

0 0.6 1.2 1.8 2 .4 3

VIN = 2.5V

VIN = 3.3V

VIN= 5.0V

VIN = 3.3V

VIN = 4.0V

VIN= 5.0V

VIN = 4.0V

VIN = 5.0V

VIN= 5.5V

OUTPUT CURRENT, IO (A)

Figure 3. Converter Efficiency versus Output Current (Vout = 1.5Vdc).

Figure 6. Converter Efficiency versus Output Current (Vout = 3.3Vdc).

OUTPUT CURRENT, IO (A)

LINEAGE POWER 6

Data Sheet

(V)

October 2, 2009

Austin MiniLynx

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

TM

SIP Non-isolated Power Modules:

Characteristic Curves (continued)

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

3.5

3

2.5

(A)

IN

2

1. 5

1

0.5

INPUT CURRENT, I

0

012345

Figure 7. Input voltage vs. Input Current

INPUT VOLTAGE, V

IN

(Vout =2.5Vdc).

Io=3 A

Io=1.5A

Io=0 A

(V) (100mV/div)

O

(A) (2A/div) V

O

OUTPUT CURRENT, OUTPUT VOLTAGE

I

TIME, t (20 μs/div)

Figure 10. Transient Response to Dynamic Load Change from 50% to 100% of full load (Vo = 3.3Vdc).

(V) (10mV/div)

O

V

OUTPUT VOLTAGE

TIME, t (1μs/div)

Figure 8. Typical Output Ripple and Noise

(V

IN = 5.0V dc, Vo = 0.75Vdc, Io=3A).

(V) (10mV/div)

O

OUTPUT VOLTAGE

V

TIME, t (1μs/div)

Figure 9. Typical Output Ripple and Noise

(

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

(V) (100mV/div)

O

(A) (2A/div) V

O

OUTPUT CURRENT, OUTPUT VOLTAGE

I

TIME, t (20 μs/div)

Figure 11. Transient Response to Dynamic Load Change from 100% to 50% of full load (Vo = 3.3 Vdc).

(V) (20mV/div)

O

(A) (2A/div) V

O

OUTPUT CURRENT, OUTPUT VOLTAGE

I

TIME, t (100μs/div)

Figure 12. Transient Response to Dynamic Load Change from 50% to 100% of full load (Vo = 3.3 Vdc, Cext = 2x150 μF Polymer Capacitors).

LINEAGE POWER 7

Data Sheet

μ

(

,

October 2, 2009

Austin MiniLynx

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

TM

SIP Non-isolated Power Modules:

Characteristic Curves (continued)

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

(V) (20mV/div)

O

(A) (2A/div) V

O

OUTPUT CURRENT, OUTPUTVOLTAGE

I

TIME, t (100μs/div)

Figure 13. Transient Response to Dynamic Load Change from 100% of 50% full load (Vo = 3.3Vdc, Cext = 2x150

ON/OFF VOLTAGE OUTPUT VOLTAGE

F Polymer Capacitors).

(V) (1V/div)

O

(V) (2V/div) V

On/off

V

TIME, t (2ms/div)

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

(V

IN = 5.0Vdc, Vo = 3.3Vdc, Io = 3A).

(V) (1V/div)

O

(V) (2V/div) V

IN

INPUT VOLTAG OUTPUT VOLTAGE

V

TIME, t (2ms/div)

Figure 16. Typical Start-Up with application of Vin

(V

IN = 5.0Vdc, Vo = 3.3Vdc, Io = 3A).

(V) (0.5V/div)

O

(V) (2V/div) V

On/off

V

ON/OFF VOLTAGE OUTPUT VOLTAGE

TIME, t (2ms/div)

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

IN = 3.3Vdc, Vo = 1.8Vdc, Io = 1.0A,

Vbias =1.0Vdc).

(V) (1V/div)

O

(A) (5A/div)

O

(V) (2V/div) V

On/off

V

ON/OFF VOLTAGE OUTPUT VOLTAGE

F

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

TIME, t (2ms/div)

Low-ESR external capacitors (7x150uF Polymer)

VIN = 5.0Vdc

Vo = 3.3Vdc, Io = 3A, Co = 1050μF).

OUTPUT CURRENT,

I

TIME, t (10ms/div)

Figure 18. Output short circuit Current

IN = 5.0Vdc, Vo = 0.75Vdc).

(V

LINEAGE POWER 8

Data Sheet October 2, 2009

Austin MiniLynx

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

TM

SIP Non-isolated Power Modules:

Characteristic Curves (continued)

The following figures provide thermal derating curves for the Austin MiniLynxTM SIP modules.

3.5

3

2.5

2

1. 5

1

0.5

OUTPUT CURRENT, Io (A)

0

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 ( Vo=3.3Vdc).

OUTPUT CURRENT, Io (A)

3.5

3

2.5

2

1. 5

1

0.5

0

20 30 40 50 60 70 80 90

0 LFM

AMBIENT TEMPERATURE, TA OC

VIN = 5.0,

Figure 20. Derating Output Current versus Local Ambient Temperature and Airflow (V

IN = 5.0Vdc,

Vo=1.8 Vdc).

3.5

3

2.5

2

1. 5

1

0.5

OUTPUT CURRENT, Io (A)

0

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).

3.5

3

2.5

2

1. 5

1

0.5

OUTPUT CURRENT, Io (A)

0

20 30 40 50 60 70 80 90

0 LFM

AMBIENT TEMPERATURE, TA OC

Figure 22. Derating Output Current versus Local Ambient Temperature and Airflow (V Vo=2.5 Vdc).

3.5

3

2.5

2

1. 5

1

0.5

0

20 30 40 50 60 70 80 90

0 LFM

Figure 23. Derating Output Current versus Local Ambient Temperature and Airflow (VIN = 3.3dc, Vo=1.2 Vdc).

3.5

3

2.5

2

1. 5

1

0.5

0

20 30 40 50 60 70 80 90

0 LFM

Figure 24. Derating Output Current versus Local Ambient Temperature and Airflow (VIN = 3.3dc, Vo=0.75 Vdc).

IN = 3.3dc,

LINEAGE POWER 9

Data Sheet

1001201401

October 2, 2009

Austin MiniLynx

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

TM

SIP Non-isolated Power Modules:

Test Configurations

TO OSCILLOSCOPE

L

TEST

1μH

CS 1000μF

BATTERY

NOTE: Measure input reflected ripple current with a simulated

Electrolytic

E.S.R.<0.1Ω

@ 20°C 100kHz

source induct ance (L possible battery impedance. Measure current as shown above.

) of 1μH. Capacit or CS offsets

TEST

Figure 25. Input Reflected Ripple Current Test Setup.

COPPER STRIP

V

(+)

O

1uF .

COM

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.

10uF

GROUND PLANE

Figure 26. Output Ripple and Noise Test Setup.

R

contact

distribution

R

contact

distribution

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

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

VIN(+)

V

IN

COM

Figure 27. Output Voltage and Efficiency Test Setup.

V

. I

O

Efficiency

=

η

VIN. I

O

IN

2x100μF Tantalum

SCOPE

V

O

COM

CURRENT PROBE

CIN

RESISTIVE LOAD

V

O

x 100 %

VIN(+)

COM

R

contactRdistribution

R

contactRdistribution

R

LOAD

Design Considerations

Input Filtering

The Austin MiniLynxTM SIP 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.

60

80

60

40

20

Input Ripple Voltage (mVp-p)

0

Output Voltage (Vdc)

Figure 28. Input ripple voltage for various outputs with 1x22 µF ceramic capacitor at the input (fullload).

16 0

14 0

12 0

10 0

80

60

40

20

Input Ripple Voltage (mVp-p)

0

Output Voltage (Vdc)

Figure 29. Input ripple voltage for various outputs with 1x47 µF ceramic capacitor at the input (full load).

3.3Vin

5Vin

0 0 .5 1 1.5 2 2 .5 3 3.5

3.3Vin

5Vin

0 0.5 1 1.5 2 2.5 3 3.5

LINEAGE POWER 10

Data Sheet October 2, 2009

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

Austin MiniLynx

Design Considerations (continued)

Output Filtering

The Austin MiniLynxTM SIP 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.

TM

SIP Non-isolated Power Modules:

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, CSA C22.2 No. 60950-1-03, and VDE 0850:2001-12 (EN60950-1) Licensed.

For the converter output to be considered meeting the requirements of safety extra-low voltage (SELV), the input must meet SELV requirements. The power module has extra-low voltage (ELV) outputs when all inputs are ELV.

The input to these units is to be provided with a fastacting fuse with a maximum rating of 6A in the positive

input lead

.

LINEAGE POWER 11

Data Sheet October 2, 2009

Austin MiniLynx

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

TM

SIP Non-isolated Power Modules:

Feature Description

Remote On/Off

The Austin MiniLynxTM SIP power modules feature an On/Off pin for remote On/Off operation. Two On/Off logic options are available in the Austin MiniLynx 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 = V

is 10µA. Applying a

IN,max

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 V

I

ON/OFF

GND

VIN+

ON/OFF

V

ON/OFF

Q1

R2

+

_

R1

R3

R4

MODULE

Q2

PWM Enable

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 R

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.

TM

IN.

Q3 CSS

pull-

VIN+

ON/OFF

GND

R

pull-up

I

ON/OFF

V

ON/OFF

Q1

+

_

MODULE

PWM Enable

R1

Q2 CSS

R2

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 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 T

, exceeds 140oC

ref

(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.

LINEAGE POWER 12

Data Sheet October 2, 2009

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

Austin MiniLynx

Feature Descriptions (continued)

Output Voltage Programming

The output voltage of the Austin MiniLynxTM SIP 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:

21070

Rtrim

⎢

−

7525.0

Vo

⎣

⎡

= 5110

For example, to program the output voltage of the Austin MiniLynx

TM

module to 1.8 Vdc, Rtrim is calculated

is follows:

= 5110

Rtrim

V

(+)

IN

ON/OFF

GND

(+)

O

TRIM

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

V

(V)

O, set

0.7525 Open

1.2 41.973

1.5 23.077

1.8 15.004

2.5 6.947

3.3 3.160

⎤

21070

−

Ω

⎥ ⎦

⎤

−

7525.08.1

⎥ ⎦

Ω= kRtrim 004.15

−

⎡ ⎢

⎣

R

trim

Rtrim (KΩ)

LOAD

TM

SIP Non-isolated Power Modules:

By using a 1% tolerance trim resistor, set point tolerance of ±2% is achieved as specified in the electrical specification. The POL Programming Tool, available at www.lineagepower.com under the Design Tools section, helps determine the required external trim resistor needed for a specific output voltage.

Voltage Margining

Output voltage margining can be implemented in the Austin MiniLynx R

margin-up

margining-up the output voltage and by connecting a resistor, R for margining-down. Figure 33 shows the circuit configuration for output voltage margining. The POL Programming Tool, available at ww.lineagepower.com under the Design Tools section, also calculates the values of R voltage and % margin. Please consult your local Lineage Power technical representative for additional details.

TM

modules by connecting a resistor,

, from the Trim pin to the ground pin for

margin-down

Austin Lynx or Lynx II Series

, from the Trim pin to the Output pin

margin-up

and R

Vo

Trim

margin-down

for a specific output

Q2

Rtrim

Rmargin-down

Rmargin-up

Q1

GND

Figure 33. Circuit Configuration for margining Output voltage.

LINEAGE POWER 13

Data Sheet

A

W

October 2, 2009

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

Austin MiniLynx

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.

Airflow

ind Tun ne l

PWBs

TM

SIP Non-isolated Power Modules:

25.4_ (1.0)

Po w e r M od u le

76.2_

(3.0)

x

Probe Loc ation

5.97_

(0.235)

ir

flow

for measuring airflow and ambient temperature

Tref1

Tref2

Figure 34. T

The thermal reference point, T specifications is shown in Figure 34. For reliable operation this temperature should not exceed 115

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 BoardMounted Power Modules” for a detailed discussion of thermal aspects including maximum device temperatures.

Temperature measurement location.

ref

used in the

ref

o

C.

Figure 35. Thermal Test Set-up.

LINEAGE POWER 14

Data Sheet October 2, 2009

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

Austin MiniLynx

Post solder Cleaning and Drying Considerations

Post solder cleaning is usually the final circuit-board assembly process prior to electrical board testing. The result of inadequate cleaning and drying can affect both the reliability of a power module and the testability of the finished circuit-board assembly. For guidance on appropriate soldering, cleaning and drying procedures, refer to Board Mounted Power Modules: Soldering and Cleaning Application Note.

Through-Hole Lead-Free Soldering Information

The RoHS-compliant through-hole products use the SAC (Sn/Ag/Cu) Pb-free solder and RoHS-compliant components. They are designed to be processed through single or dual wave soldering machines. The pins have an RoHS-compliant finish that is compatible with both Pb and Pb-free wave soldering processes. A maximum preheat rate of 3°C/s is suggested. The wave preheat process should be such that the temperature of the power module board is kept below 210°C. For Pb solder, the recommended pot temperature is 260°C, while the Pb-free solder pot is 270°C max. Not all RoHS-compliant through-hole products can be processed with paste-through-hole Pb or Pb-free reflow process. If additional information is needed, please consult with your Lineage Power technical representative for more details.

TM

SIP Non-isolated Power Modules:

LINEAGE POWER 15

Data Sheet October 2, 2009

Austin MiniLynx

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

TM

SIP Non-isolated Power Modules:

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.)

Top View

Side View

PIN FUNCTION

1 Vo

2 Trim

3 GND

4 VIN

5 On/Off

LINEAGE POWER 16

Data Sheet

October 2, 2009

Austin MiniLynx

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

TM

SIP Non-isolated Power Modules:

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.)

PIN FUNCTION

1 Vo

2 Trim

3 GND

4 VIN

5 On/Off

Component side view

LINEAGE POWER 17

Data Sheet

a

©

October 2, 2009

Austin MiniLynx

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

TM

SIP Non-isolated Power Modules:

Ordering Information

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

Table 3. Device Codes

Device Code

AXH003A0X 2.4 – 5.5Vdc 0.75 – 3.63Vdc 3 A

AXH003A0X4 2.4 – 5.5Vdc 0.75 – 3.63Vdc 3 A

AXH003A0X-Z 2.4 – 5.5Vdc 0.75 – 3.63Vdc 3 A

AXH003A0X4-Z 2.4 – 5.5Vdc 0.75 – 3.63Vdc 3 A

-Z refers to RoHS compliant Versions

Input

Voltage

Range

Output

Voltage

Output

Current

Efficiency

3.3V@ 3A

94.0 %

On/Off

Logic

Negative SIP 108992640

Positive

Negative

Positive

Connector

Type

SIP

Comcodes

108992657

CC109104865

CC109104873

Asia-Pacific Headquarters

Tel: + 65 6593 7211

World Wide Headquarters Lineage Power Corporation

601 Shil oh Roa d, Plano, TX 75074, USA +1-800-526-7 819 (Outsi de U.S.A.: +1-972-244-9428)

www.lineagepower.com e-mail: techs upport1@lineagepower.com

Linea ge Power res erves th e right to make change s to the prod uct(s) or i nformation c ontained herein without not ice. No l iability is assumed as a result o f their use or

pplication . No righ ts under any patent accompany the sal e of any s uch produc t(s) or informati on.

Linea ge Power D C-DC pro ducts are p rotected unde r various pa tents. Infor mation on these pa tents is av ailable at ww w.line agepower .com/paten ts.

2009 Line age Power Corporation, (Plan o, Texas) All Inte rnation al Rights Reserved.

Europe, Middle-East and Africa Headquarters

Tel: + 49 898 780 672 80

India Headquarters Tel: + 91 80 2841163 3

LINEAGE POWER 18

Document No: DS04-040 ver. 1.33

PDF name: minilynx_sip_ds.pdf

GE Industrial Solutions Austin Minilynx SIP User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual