GE Industrial Solutions Austin Lynx II SIP User Manual

Data Sheet October 2, 2009

Austin Lynx

2.4Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc Output;10A Output Current

TM

II SIP Non-isolated Power Modules:

RoHS Compliant

EZ-SEQUENCE

TM

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)

 Flexible output voltage sequencing EZ-

SEQUENCE

 Delivers up to 10A output current

 High efficiency – 95% at 3.3V full load (V

 Small size and low profile:

50.8 mm x 12.7 mm x 8.1 mm

 (2.00 in x 0.50 in x 0.32 in)

 Low output ripple and noise

 High Reliability:

Calculated MTBF = 15.7M hours at 25

 Constant switching frequency (300 kHz)

 Output voltage programmable from 0.75 Vdc to

3.63Vdc via external resistor

 Line Regulation: 0.3% (typical)

 Load Regulation: 0.4% (typical)

 Temperature Regulation: 0.4 % (typical)

 Remote On/Off

 Remote sense

 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

TM

†

‡

0805:2001-12 (EN60950-1)

C22.2 No. 60950-1-

= 5.0V)

IN

o

C Full-load

Description

Austin LynxTM II SIP power modules are non-isolated DC-DC converters that can deliver up to 10A of output current with full load efficiency of 95% 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

5.5Vdc). The Austin Lynx implement various types of output voltage sequencing when powering multiple voltages on a board.

* 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

TM

II series has a sequencing feature, EZ-SEQUENCETM that enable designers to

Document No: DS04-021 ver. 1.23

PDF name: lynx_II_sip_ds.pdf

= 2.4 –

IN

Data Sheet October 2, 2009

Austin Lynx

2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 10A output current

TM

II 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

Sequencing voltage All Vseq -0.3 V

Operating Ambient Temperature All T

(see Thermal Considerations section)

Storage Temperature All T

IN

A

stg

-0.3 5.8 Vdc

Vdc

IN,max

-40 85 °C

-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 ≤ V

Maximum Input Current All I

(VIN=2.4V to 5.5V, IO=I

Input No Load Current Vo = 0.75Vdc I

)

O, max

- 0.5 VIN 2.4

IN

IN,max

IN,No load

10 Adc

25 mA

⎯

5.5 Vdc

(VIN = 5.0Vdc, IO = 0, module enabled) Vo = 3.3Vdc I

Input Stand-by Current All I

(VIN = 5.0Vdc, module disabled)

Inrush Transient All I2t 0.1 A2s

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

Input Ripple Rejection (120Hz) All 30 dB

IN, max, IO

= I

; See Test Configurations)

Omax

IN, min

to

All 100 mAp-p

30 mA

IN,No load

1.5 mA

IN,stand-by

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 15A, time-delay fuse (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 Lynx

2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 10A output current

TM

II 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 82.5 %

O,set

= 1.2Vdc η 88.0 %

O, set

= 1.5Vdc η 89.5 %

O,set

= 1.8Vdc η 91.0 %

O,set

= 2.5Vdc η 93.0 %

O,set

= 3.3Vdc η 95.0 %

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

⎯

0.3

0.4

⎯

8 15 mV

25 50 mV

% V

⎯ ⎯

1000 μF

5000 μF

0 10 Adc

⎯

200

3.0

⎯

300

200

25

200

25

⎯

⎯ μs

⎯

⎯ μs

O, set

pk-pk

% I

Adc

kHz

mV

rms

o

LINEAGE POWER 3

Data Sheet October 2, 2009

Austin Lynx

2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 10A output current

TM II

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

⎯

100

⎯

⎯ μs

⎯

⎯ μs

mV

General Specifications

Parameter Min Typ Max Unit

Calculated MTBF (IO=I Telecordia SR-332 Issue 1: Method 1 Case 3

Weight

O, max

, TA=25°C)

⎯

15,726,300 Hours

5.6 (0.2)

⎯

g (oz.)

LINEAGE POWER 4

Data Sheet October 2, 2009

Austin Lynx

2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 10A output current

TM

II 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

O, max , VIN

= V

= 25 oC, )

IN, nom, TA

All Tdelay ― 3.9 ― msec ON) and then input power is applied (delay from instant at which V

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

=V

IN

until Vo=10% of Vo,set)

IN, min

All Tdelay ― 3.9 ― msec 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

o,set to 90% of Vo, set)

All Trise

Sequencing Delay time

Delay from V

to application of voltage on SEQ pin All TsEQ-delay 10 msec

IN, min

Tracking Accuracy (Power-Up: 2V/ms) All

(Power-Down: 1V/ms) All

(V

IN, min

to V

IN, max

; I

to I

O, min

VSEQ < Vo)

O, max

SEQ –Vo

|V

SEQ –Vo

Output voltage overshoot – Startup ―

IO= I

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

O, max

Remote Sense Range ― ― 0.5 V Overtemperature Protection

(See Thermal Consideration section)

Input Undervoltage Lockout

Turn-on Threshold All

Turn-off Threshold All

All T

ref

V

IN, max

Vdc

IN,max

― 4.2 8.5 msec

100 200 mV

200 400 mV

1

% V

O, set

⎯

125

⎯

°C

2.2 V

2.0 V

LINEAGE POWER 5

Data Sheet

O

(A)

)

October 2, 2009

Austin Lynx

2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 10A output current

TM II

SIP Non-isolated Power Modules:

Characteristic Curves

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

90

87

84

81

78

75

EFFICIENCY, (η)

72

02.557.510

VIN = 3.0V

VIN = 5.0V

VIN = 5.5V

OUTPUT CURRENT, IO (A)

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

93

90

87

84

81

78

EFFICIENCY, (η)

75

72

0 2 .5 5 7.5 10

VIN = 3.0V

VIN = 5.0V

VIN = 5.5V

OUTPUT CURRENT, I

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

96

93

90

87

84

81

78

EFFICIENCY, (η)

75

72

02.557.510

OUTPUT CURRENT, IO (A)

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

10 0

97

94

91

88

85

82

79

EFFICIENCY, (η)

76

73

02.557.510

OUTPUT CURRENT, IO (A

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

VIN = 3.0V

VIN = 5.0V

VIN = 5.5V

VIN = 3.0V

VIN = 5.0V

VIN = 5.5V

94

91

88

85

82

79

76

EFFICIENCY, (η)

73

70

02.557.510

VIN = 3.0V

VIN = 5.0V

VIN = 5.5V

OUTPUT CURRENT, IO (A)

Figure3. Converter Efficiency versus Output Current (Vout = 1.5Vdc).

10 0

97

94

91

88

85

82

EFFICIENCY, (η)

79

76

0 2.5 5 7.5 10

VIN = 4.5V

VIN = 5.0V

VIN = 5.5V

OUTPUT CURRENT, IO (A)

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

LINEAGE POWER 6

Data Sheet October 2, 2009

Austin Lynx

2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 10A output current

TM

II SIP Non-isolated Power Modules:

Characteristic Curves (continued)

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

10

9

8

7

(A)

IN

6

5

4

3

2

INPUT CURRENT, I

1

0

0.5 1.5 2.5 3.5 4.5 5.5

INPUT VOLTAGE, VIN (V)

Figure 7. Input voltage vs. Input Current (Vo =

2.5Vdc).

Io=10A

Io=5A

Io=0A

(V) (200mV/div)

O

(A) (5A/div) V

O

OUTPUT CURRENT, OUTPUT VOLTAGE

I

TIME, t (10μs/div)

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

(V) (20mV/div)

O

V

OUTPUT VOLTAGE

TIME, t (2μs/div)

Figure 8. Typical Output Ripple and Noise

(Vin = 5.0V dc, Vo = 0.75, Vdc, Io=10A).

(V) (20mV/div)

O

OUTPUT VOLTAGE

V

TIME, t (2μs/div)

Figure 9. Typical Output Ripple and Noise

(Vin = 5.0V dc, Vo = 3.3 Vdc, Io=10A).

(V) (200mV/div)

O

(A) (5A/div) V

O

OUTPUT CURRENT, OUTPUT VOLTAGE

I

TIME, t (10μs/div)

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

(V) (200mV/div)

O

(A) (5A/div) V

O

OUTPUT CURRENT, OUTPUT VOLTAGE

I

TIME, t (20μs/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 Lynx

2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 10A output current

TM II

SIP Non-isolated Power Modules:

Characteristic Curves (continued)

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

(V) (2V/div)

(V) (200mV/div)

O

(A) (5A/div) V

O

I

OUTPUT CURRENT, OUTPUT VOLTAGE

TIME, t (20μs/div)

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

F Polymer Capacitors).

NN

V) (1V/div) V

O

V

OUTPUT VOLTAGE INPUT VOLTAGE

TIME, t (2 ms/div)

Figure 16. Typical Start-Up with application of Vin

(Vin = 5.0Vdc, Vo =3.3Vdc, Io =10A).

(V) (2V/div)

On/off

V) (1V/div) V

O

V

OUTPUT VOLTAGE On/Off VOLTAGE

TIME, t (2 ms/div)

Figure 14. Typical Start-Up Using Remote On/Off (Vin = 5.0Vdc, Vo = 3.3Vdc, Io = 10.0A).

(V) (2V/div)

On/off

V) (1V/div) V

O

OUTPUT VOLTAGE On/Off VOLTAGE

V

F

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

TIME, t (2 ms/div)

Low-ESR external capacitors (Vin = 5.5Vdc, Vo =

3.3Vdc, Io = 10.0A, Co = 1050μF).

(V) (2V/div)

On/off

V) (1V/div) V

O

V

OUTPUT VOLTAGE On/Off VOLTAGE

TIME, t (2 ms/div)

Figure 17 Typical Start-Up Using Remote On/Off with Prebias (Vin = 3.3Vdc, Vo = 1.8Vdc, Io = 1.0A, Vbias =1.0Vdc).

(A) (10A/div)

O

OUTPUT CURRENT,

I

TIME, t (10ms/div)

Figure 18. Output short circuit Current (Vin =

5.0Vdc, Vo = 0.75Vdc).

LINEAGE POWER 8

Data Sheet

A

O

A

O

C

October 2, 2009

Austin Lynx

2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 10A output current

TM

II SIP Non-isolated Power Modules:

Characteristic Curves (continued)

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

12

10

8

6

4

NC

2

100 LFM

0

OUTPUT CURRENT, Io (A)

20 30 40 50 60 70 80 90

AMBIENT TEMPERATURE, T

C

Figure 19. Derating Output Current versus Local Ambient Temperature and Airflow (Vin = 5.0, Vo=0.75Vdc).

OUTPUT CURRENT, Io (A)

12

10

8

6

4

NC

2

100 LFM

0

20 30 40 50 60 70 80 90

AMBIENT TEMPERATURE, TA OC

Figure 20. Derating Output Current versus Local Ambient Temperature and Airflow (Vin = 5.0Vdc, Vo=1.8 Vdc).

12

10

8

6

4

NC

2

100 LFM

0

OUTPUT CURRENT, Io (A)

20 30 40 50 60 70 80 90

AMBIENT TEMPERATURE, T

C

Figure 22. Derating Output Current versus Local Ambient Temperature and Airflow (Vin = 5.0dc, Vo=3.3 Vdc).

12

10

8

6

4

N

2

0

OUTPUT CURRENT, Io (A)

20 30 40 50 60 70 80 90

AMBIENT TEMPERATURE, TA OC

Figure 23. Derating Output Current versus Local Ambient Temperature and Airflow (Vin = 3.3Vdc, Vo=2.5 Vdc).

10

8

6

4

NC

2

100 LFM

0

OUTPUT CURRENT, Io (A)

20 30 40 50 60 70 80 90

AMBIENT TEMPERATURE, TA OC

Figure 21. Derating Output Current versus Local Ambient Temperature and Airflow

(Vin = 5.0Vdc,

Vo=2.5 Vdc).

LINEAGE POWER 9

Data Sheet October 2, 2009

Austin Lynx

2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 10A output current

TM II

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 24. 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 25. 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 26. 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

Austin LynxTM II 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 27 shows input ripple voltage (mVp-p)

for various outputs with 1x150 µF polymer capacitors

(Panasonic p/n: EEFUE0J151R, Sanyo p/n:

6TPE150M) in parallel with 1 x 47 µF ceramic capacitor

(Panasonic p/n: ECJ-5YB0J476M, Taiyo- Yuden p/n:

CEJMK432BJ476MMT) at full load. Figure 28 shows

the input ripple with 3x150 µF polymer capacitors in

parallel with 2 x 47 µF ceramic capacitor at full load.

80

70

60

50

40

30

20

10

Input Ripple Voltage (mVp-p)

0

00.511.522.533.5

Output Voltage (Vdc)

Figure 27. Input ripple voltage for various output

with 1x150 µF polymer and 1x47 µF ceramic

capacitors at the input (full load)

80

70

60

50

40

30

20

10

0

Input Ripple Voltage (mVp-p)

00.511.5 22.533.5

Output Voltage (Vdc)

Figure 28. Input ripple voltage for various output

with 3x150 µF polymer and 2x47 µF ceramic

capacitors at the input (full load)

3.3Vin

5Vin

3.3Vin

5Vin

LINEAGE POWER 10

Data Sheet October 2, 2009

2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 10A output current

Austin Lynx

Design Considerations (continued)

Output Filtering

The Austin LynxTM II 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

II 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 fast-

acting fuse with a maximum rating of 15A in the positive

input lead

.

LINEAGE POWER 11

Data Sheet October 2, 2009

Austin Lynx

2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 10A output current

TM II

SIP Non-isolated Power Modules:

Feature Description

Remote On/Off

The Austin LynxTM II SIP power modules feature an On/Off pin for remote On/Off operation. Two On/Off logic options are available in the Austin Lynx 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 29. 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

VIN+

R2

I

ON/OFF

GND

ON/OFF

V

ON/OFF

Q1

+

_

R1

Q2

R3

R4

Figure 29. Circuit configuration for using positive logic On/OFF.

For negative logic On/Off devices, the circuit configuration is shown is Figure 30. 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

II series

IN.

MODULE

PWM Enable

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 30. 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 3.0A.

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 protection in a fault condition, the unit is equipped with a thermal shutdown circuit. The unit will shutdown if the thermal reference point T exceeds 125 not intended as a guarantee that the unit will survive temperatures beyond its rating. The module will automatically restarts after it cools down.

o

C (typical), but the thermal shutdown is

,

ref

LINEAGE POWER 12

Data Sheet October 2, 2009

2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 10A output current

Austin Lynx

Feature Descriptions (continued)

Output Voltage Programming

The output voltage of the Austin LynxTM II SIP can be programmed to any voltage from 0.75 Vdc to 3.3 Vdc by connecting a single resistor (shown as Rtrim in Figure

31) between the TRIM and GND pins of the module. Without an external resistor between the 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:

Rtrim

For example, to program the output voltage of the Austin Lynx follows:

TM

⎢

−

7525.0

Vo

⎣

II module to 1.8 Vdc, Rtrim is calculated is

21070

⎡

=

Rtrim

⎢

−

7525.08.1

⎣

21070

⎡

= 5110

V

(+)

IN

ON/OFF

GND

Figure 31. Circuit configuration to program output voltage using an external resistor.

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

(+)

O

TRIM

Table 1

VO, (V)

0.7525 Open

1.2 41.973

1.5 23.077

1.8 15.004

2.5 6.947

3.3 3.160

⎤

5110

Ω= kRtrim 004.15

Ω

⎥ ⎦

⎤

Ω−

⎥ ⎦

R

trim

−

Rtrim (KΩ)

LOAD

TM

II SIP Non-isolated Power Modules:

By a 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.lineagepower.com under the Design Tools section, helps determine the required external trim resistor needed for a specific output voltage.

The amount of power delivered by the module is defined as the voltage at the output terminals multiplied by the output current. When using the trim feature, the output voltage of the module can be increased, which at the same output current would increase the power output of the module. Care should be taken to ensure that the maximum output power of the module remains at or below the maximum rated power (P

max

= V

o,set

x I

Voltage Margining

Output voltage margining can be implemented in the Austin Lynx R

margin-up

margining-up the output voltage and by connecting a resistor, R for margining-down. Figure 32 shows the circuit configuration for output voltage margining. The POL Programming Tool, available at www.lineagepower.com under the Design Tools section, also calculates the values of R voltage and % margin. Please consult your local Lineage Power technical representative for additional details.

Figure 32. Circuit Configuration for margining Output voltage.

TM

II SIP 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

margin-down

Vo

Trim

GND

for a specific output

Q2

Rtrim

Q1

Rmargin-down

Rmargin-up

Feature Descriptions (continued)

o,max

).

LINEAGE POWER 13

Data Sheet October 2, 2009

Austin Lynx

2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 10A output current

TM II

SIP Non-isolated Power Modules:

Voltage Sequencing

The Austin LynxTM II series of modules include a sequencing feature, EZ-SEQUENCE users to implement various types of output voltage sequencing in their applications. This is accomplished via an additional sequencing pin. When not using the sequencing feature, either tie the SEQ pin to V leave it unconnected.

When an analog voltage is applied to the SEQ pin, the output voltage tracks this voltage until the output reaches the set-point voltage. The SEQ voltage must be set higher than the set-point voltage of the module. The output voltage follows the voltage on the SEQ pin on a one-to-one volt basis. By connecting multiple modules together, customers can get multiple modules to track their output voltages to the voltage applied on the SEQ pin.

For proper voltage sequencing, first, input voltage is applied to the module. The On/Off pin of the module is left unconnected (or tied to GND for negative logic modules or tied to V

IN for positive logic modules) so that

the module is ON by default. After applying input voltage to the module, a minimum of 10msec delay is required before applying voltage on the SEQ pin. During this time, potential of 50mV (± 10 mV) is maintained on the SEQ pin. After 10msec delay, an analog voltage is applied to the SEQ pin and the output voltage of the module will track this voltage on a one-toone volt bases until output reaches the set-point voltage. To initiate simultaneous shutdown of the modules, the SEQ pin voltage is lowered in a controlled manner. Output voltage of the modules tracks the voltages below their set-point voltages on a one-to-one basis. A valid input voltage must be maintained until the tracking and output voltages reach ground potential.

When using the EZ-SEQUENCE start-up of the module, pre-bias immunity feature during start-up is disabled. The pre-bias immunity feature of the module relies on the module being in the diodemode during start-up. When using the EZSEQUENCE

TM

feature, modules goes through an internal set-up time of 10msec, and will be in synchronous rectification mode when voltage at the SEQ pin is applied. This will result in sinking current in the module if pre-bias voltage is present at the output of the module. When pre-bias immunity during start-up is required, the EZ-SEQUENCE disabled. For additional guidelines on using EZSEQUENCE

TM

feature of Austin LynxTM II, contact the Lineage Power technical representative for preliminary application note on output voltage sequencing using Austin Lynx II series.

TM

that enables

TM

feature to control

TM

feature must be

IN or

Remote Sense

The Austin LynxTM II SIP power modules have a Remote Sense feature to minimize the effects of distribution losses by regulating the voltage at the Remote Sense pin (See Figure 33). The voltage between the Sense pin and Vo pin must not exceed

0.5V.

The amount of power delivered by the module is defined as the output voltage multiplied by the output current (Vo x Io). When using Remote Sense, the output voltage of the module can increase, which if the same output is maintained, increases the power output by the module. Make sure that the maximum output power of the module remains at or below the maximum rated power. When the Remote Sense feature is not being used, connect the Remote Sense pin to output pin of the module.

R

distribution

R

distribution

R

contact

R

contact

VIN(+)

COM

V

Sense

COM

R

O

contact Rdistribution

R

LOAD

R

contact Rdistribution

Figure 33. Remote sense circuit configuration.

LINEAGE POWER 14

Data Sheet

A

W

October 2, 2009

2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 10A output current

Austin Lynx

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

Top View

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

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 at different local ambient temperature (T airflow conditions ranging from natural convection and up to 2m/s (400 ft./min) are shown in the Characteristics Curves section.

Tref

o

C.

) for

A

TM

II SIP Non-isolated Power Modules:

ind Tunnel

PWBs

Figure 35. Thermal Test Set-up.

x

8.3_

(0.325)

ir

flow

76.2_ (3.0)

25.4_ (1.0)

Po we r M o d ul e

Probe Location for measuring airflow and ambient temperature

LINEAGE POWER 15

Data Sheet October 2, 2009

2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 10A output current

Austin Lynx

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 II

SIP Non-isolated Power Modules:

LINEAGE POWER 16

Data Sheet October 2, 2009

Austin Lynx

2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 10A output current

TM

II 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.)

Front View

Side View

Back View

PIN FUNCTION

1 Vo

2 Vo

3 Sense+

4 Vo

5 GND

6 GND

7 VIN

8 VIN

B SEQ

9 Trim

10 On/Off

LINEAGE POWER 17

Data Sheet October 2, 2009

Austin Lynx

2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 10A output current

TM II

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 Vo

3 Sense+

4 Vo

5 GND

6 GND

7 VIN

8 VIN

B SEQ

9 Trim

10 On/Off

Module Layout – Back view

LINEAGE POWER 18

Data Sheet

a

©

October 2, 2009

Austin Lynx

2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 10A output current

TM

II SIP Non-isolated Power Modules:

Ordering Information

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

Table 2. Device Codes

Device Code

ATH010A0X3 2.4 – 5.5Vdc 0.75 – 3.63Vdc 10 A

ATH010A0X43 2.4 – 5.5Vdc 0.75 – 3.63Vdc 10 A

ATH010A0X3Z 2.4 – 5.5Vdc 0.75 – 3.63Vdc 10 A

ATH010A0X43Z 2.4 – 5.5Vdc 0.75 – 3.63Vdc 10 A

Input Voltage

Range

-Z refers to RoHS compliant Versions

Output

Voltage

Output

Current

Efficiency

3.3V@ 10A

95.0%

Connector

Type

SIP 108989075

SIP 108989083

SIP CC109104733

SIP CC109104741

Comcodes

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 v arious patents. Infor mation on these pa tents is av ailable at www .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 19

Document No: DS04-021 ver. 1.23

PDF name: lynx_II_sip_ds.pdf

GE Industrial Solutions Austin Lynx II SIP User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual