GE Industrial Solutions Austin MegaLynx User Manual

Data Sheet

April 19, 2011

4.5 – 5.5Vdc input; 0.8 to 3.63Vdc output; 30A Output Current

6.0 – 14Vdc input; 0.8dc to 5.5Vdc output; 25A Output Current

Austin MegaLynxTM: Non-Isolated DC-DC Power Modules:

RoHS Compliant

Applications

 Distributed power architectures

 Intermediate bus voltage applications

 Telecommunications equipment

 Servers and storage applications

 Networking equipment

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 30A of output current

 High efficiency – 93% 3.3V full load (VIN=12Vdc)

 Available in two input voltage ranges

ATH: 4.5 to 5.5Vdc

ATS: 6.0 to 14Vdc

 Output voltage programmable from

ATH: 0.8 to 3.63Vdc

ATS: 0.8 to 5.5Vdc

 Small size and low profile:

50.8 mm x 12.7 mm x 14.0 mm

2.00 in. x 0.50 in. x 0.55 in.

 Monotonic start-up into pre-biased output

 Output voltage sequencing (EZ-SEQUENCE

 Remote On/Off

 Remote Sense

 Over current and Over temperature protection

 Parallel operation with active current sharing

 Wide operating temperature range (-40°C to

85°C)

 UL* 60950 Recognized, CSA

60950-00 Certified, and VDE

rd

3

edition) Licensed

 ISO** 9001 and ISO 14001 certified

manufacturing facilities

†

C22.2 No.

‡

0805 (EN60950-1

TM

)

Description

The Austin MegaLynx series SIP power modules are non-isolated DC-DC converters in an industry standard package that can deliver up to 30A of output current with a full load efficiency of 92% at 3.3Vdc output voltage (V 12Vdc). The ATH series of modules operate off an input voltage from 4.5 to 5.5Vdc and provide an output voltage that is programmable from 0.8 to 3.63Vdc, while the ATS series of modules have an input voltage range from 6 to 14V and provide a programmable output voltage ranging from 0.8 to 5.5Vdc. Both series have a sequencing feature that enables designers to implement various types of output voltage sequencing when powering multiple modules on the board. Additional features include remote On/Off, adjustable output voltage, remote sense, over current, over temperature protection and active current sharing between modules.

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

†

CSA is a reg istered trademark of Canadian Standards Associat ion.

‡

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: DS05-012 ver. 1.06

PDF Name: austin_megalynx_sip.pdf

IN

=

Data Sheet April 19, 2011

4.5 – 5.5Vdc input; 0.8 – 3.63Vdc output; 30A output current

Austin MegaLynxTM: Non-Isolated DC-DC Power Modules:

6.0 – 14Vdc input; 0.8 – 5.5Vdc output; 25A output current

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

Continuous All V

IN

-0.3 15 Vdc

Sequencing pin voltage All VsEQ -0.3 15 Vdc

Operating Ambient Temperature All T

A

-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 ATH VIN 4.5 5.0 5.5 Vdc

ATS VIN 6.0 12 14 Vdc

Maximum Input Current ATH I

(VIN= V

IN,min

, VO= V

O,set, IO=IO, max

) ATS I

Inrush Transient All

IN,max

2

I

t

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

=6.0V to 14.0V, IO= I

IN

; See Figure 1)

Omax

All 100 mAp-p

Input Ripple Rejection (120Hz) All 50 dB

27 Adc

26 Adc

2

1

A

s

LINEAGE POWER 2

Data Sheet April 19, 2011

4.5 – 5.5Vdc input; 0.8 – 3.63Vdc output; 30A output current

Austin MegaLynxTM: Non-Isolated DC-DC Power Modules:

6.0 – 14Vdc input; 0.8 – 5.5Vdc output; 25A output current

Electrical Specifications (continued)

Parameter Device Symbol Min Typ Max Unit

Output Voltage Set-point All V

(VIN=V

IN,min

, IO=I

, T

=25°C)

O, max

ref

Output Voltage All V

O, set

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

Adjustment Range

Selected by an external resistor

ATH V

ATS V

0.8 3.63 Vdc

O

Output Regulation

Line (VIN=V

Load (IO=I

Temperature (T

IN, min

O, min

to V

to I

ref=TA, min

) All 0.1 % V

IN, max

) All 0.4 % V

O, max

to T

) All 0.5 1 % V

A, max

Output Ripple and Noise on nominal output

(VIN=V

C

OUT

capacitors)

IN, nom

and IO=I

O, min

to I

O, max

= 0.01μF // 0.1μF // 10μF ceramic

Peak-to-Peak (5Hz to 20MHz bandwidth) Vo ≤ 2.5V 50 mV

Peak-to-Peak (5Hz to 20MHz bandwidth) 2.5V < Vo ≤ 3.63V 75 mV

Peak-to-Peak (5Hz to 20MHz bandwidth) Vo > 3.63V 100 mV

External Capacitance

ESR ≥ 1 mΩ All C

ESR ≥ 10 mΩ All C

Output Current (VIN = 5Vdc/12Vdc) ATH025/ATS025 I

Output Current (VIN = 5Vdc) ATH030 I

Output Current Limit Inception (Hiccup Mode)

All I

Output Short-Circuit Current All I

(VO≤250mV) ( Hiccup Mode )

Efficiency V

VIN=12Vdc, TA=25°C V

IO=25A

, VO

= V

V

O,set

V

Efficiency V

VIN=5Vdc, TA=25°C V

IO=30A

, VO

= V

V

O,set

V

= 0.8dc η 82.0 %

O,set

= 1.2Vdc η 84.0 %

O,set

= 1.5Vdc η 88.0 %

O,set

= 1.8Vdc η 89.5 %

O,set

= 2.5Vdc η 91.0 %

O,set

= 3.3Vdc η 92.5 %

O,set

= 5.0Vdc η 94.0 %

O,set

= 0.8dc η 84.0 %

O,set

= 1.2Vdc η 88.5 %

O,set

= 1.5Vdc η 90.0 %

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, Fixed All f

O, max

o

O, lim

O, s/c

sw

-1.5

⎯

–3.0 +3.0 % V

0.8 5.5 Vdc

+1.5 % V

O, set

pk-pk

0 2,000 µF

0 10,000 µF

0 25 Adc

0 30 Adc

120 % I

20 % I

omax

⎯

300

⎯

kHz

LINEAGE POWER 3

Data Sheet April 19, 2011

4.5 – 5.5Vdc input; 0.8 – 3.63Vdc output; 30A output current

Austin MegaLynxTM: Non-Isolated DC-DC Power Modules:

6.0 – 14Vdc input; 0.8 – 5.5Vdc output; 25A output current

Electrical Specifications (continued)

Parameter Device Symbol Min Typ Max Unit

Dynamic Load Response

(dIO/dt=5A/μs; VIN=VIN,

; VO=3.3V; TA=25°C;)

nom

Load Change from Io= 0% to 50% of IO,max; No external output capacitors

Peak Deviation ATS V

Settling Time (VO<10% peak deviation)

(dIO/dt=5A/μs; VIN=VIN,

; VO=3.3V; TA=25°C;)

nom

Load Change from IO= 50% to 0%of IO, external output capacitors

max

: No

ATS t

Peak Deviation ATS V

Settling Time (VO<10% peak deviation)

(dIO/dt=5A/μs; VIN=VIN,

; VO=3.3V; TA=25°C;)

nom

Load Change from Io= 0% to 50% of IO,max; No external output capacitors

ATS t

Peak Deviation ATH V

Settling Time (VO<10% peak deviation)

(dIO/dt=5A/μs; VIN=VIN,

; VO=3.3V; TA=25°C)

nom

Load Change from IO= 50% to 0%of IO, external output capacitors

max

: No

ATH t

Peak Deviation ATH V

Settling Time (VO<10% peak deviation)

ATH t

pk

s

pk

s

pk

s

pk

s

⎯

350

20

⎯

⎯ μs

⎯

350

20

⎯

⎯ μs

⎯

320

20

⎯

⎯ μs

⎯

250

20

⎯

⎯ μs

mV

General Specifications

Parameter Min Typ Max Unit

Calculated MTBF (VIN= V Telecordia SR 332 Issue 1: Method 1, case 3

Weight

IN, nom

, IO= 0.8I

, TA=40°C)

O, max

3,016,040 Hours

⎯

7.4

⎯

g

LINEAGE POWER 4

Data Sheet

,

)

April 19, 2011

4.5 – 5.5Vdc input; 0.8 – 3.63Vdc output; 30A output current

Austin MegaLynxTM: Non-Isolated DC-DC Power Modules:

6.0 – 14Vdc input; 0.8 – 5.5Vdc output; 25A output current

Feature Specifications

Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See Feature Descriptions for additional information.

Parameter Device Symbol Min Typ Max Unit

On/Off Signal Interface

(VIN=V

Signal referenced to GND)

Logic High (Module OFF)

Input High Current All IIH

Input High Voltage All VIH

Logic Low (Module ON)

Input Low Current All IIL

Input Low Voltage All VIL

Turn-On Delay and Rise Times

(VIN=V state)

Case 1: On/Off input is enabled 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 enabled (delay from instant at which Von/Off is enabled until V 10% of V

Output voltage Rise time (time for Vo to rise from 10% of Vo, set to 90% of Vo, set)

Output voltage overshoot 3.0 % V

IO = I

Remote Sense Range All

Over Temperature Protection

(See Thermal Consideration section)

Sequencing Slew rate capability All dVSEQ/dt — 2 V/msec

(V

Sequencing Delay time (Delay from V

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

Tracking Accuracy Power-up (2V/ms) All |VSEQ –Vo,set| 100 200 mV

Power-down (1V/ms) |VSEQ –Vo,set| 200 400 mV

(V

IN, min

Input Undervoltage Lockout

Turn-on Threshold ATH

Turn-off Threshold ATH

Turn-on Threshold ATS

Turn-off Threshold ATS

Forced Load Share Accuracy -P

Number of units in Parallel -P

O, max

IN, min

IN, nom

to V

, IO=I

= V

o, set)

; V

IN, min

IN, max

to V

; open collector or equivalent,

IN, max

O, max , VO

until Vo = 10% of Vo

– V

IN, max

; I

IN, max

to I

O, min

; I

- I

O, min

0.5

3.0

⎯

3.3 mA

V

IN, max

⎯ ⎯

-0.3

⎯

200 µA

1.2 V

to within ±1% of steady

All Tdelay ― 3 msec

set

o =

All Tdelay ― 3 msec

All Trise

― 4 msec

O, set

, TA = 25 oC

All T

VSEQ < Vo)

O, max

IN, min

VSEQ < Vo,set)

O, max

ref

⎯ ⎯

⎯

125

4.3 Vdc

3.9 Vdc

5.5 Vdc

5.0 Vdc

⎯

10 % Io

5

0.5 V

⎯

°C

LINEAGE POWER 5

Data Sheet

O

/Off

VOLTAGE

OUTPUT

VOLTAGE

April 19, 2011

4.5 – 5.5Vdc input; 0.8 – 3.63Vdc output; 30A output current

Austin MegaLynxTM: Non-Isolated DC-DC Power Modules:

6.0 – 14Vdc input; 0.8 – 5.5Vdc output; 25A output current

Characteristic Curves

The following figures provide typical characteristics for the ATS025A0X (0.8V, 25A) at 25oC.

92%

89%

86%

83%

80%

77%

74 %

EFFICIENCY, η (%)

71%

68%

0 5 10 15 2 0 2 5

VIN = 6.0V

VIN = 12 .0V

VIN =14.0V

OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC

Figure 1. Converter Efficiency versus Output Current. Figure 4. Derating Output Current versus Local

30

25

20

0.5m/s (100 LFM)

15

1. 0 m/ s ( 2 0 0 LF M )

10

1.5m/ s (3 00 LFM )

5

2.0m/s (400 LFM )

OUTPUT CURRENT, Io (A)

0

20 30 40 50 60 70 80 90

Ambient Temperature and Airflow.

(V) (20mV/div)

O

V

OUTPUT VOLTAGE

TIME, t (1μs/div)

Figure 2. Typical output ripple and noise (V I

o = Io,max).

(V) (100mV/div)

O

(A) (10A/div) V

O

OUTPUT CURRENT, OUTPUT VOLTAGE

I

TIME, t (5μs /div)

IN = VIN,NOM,

Figure 3. Transient Response to Dynamic Load Change from 0% to 50% to 0% of full load.

(V) (0.5V/div)

O

(V) (5V/div) V

On/off

n

V

TIME, t (2ms/div)

Figure 5. Typical Start-up Using Remote On/Off (V V

IN,NOM, Io = Io,max).

(V) (0.5V/div)

O

(V) (5V/div) V

IN

V

INPUT VOLTAGE OUTPUT VOLTAGE

TIME, t (2ms/div)

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

IN,NOM, Io = Io,max).

IN =

LINEAGE POWER 6

GE Industrial Solutions Austin MegaLynx User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual