CC109155314 - GE CRITICAL POWER - Datasheet.Directory

Data Sheet

September 7, 2011

GigaTLynxTM Non-isolated Power Modules:

4.5Vdc – 14Vdc input; 0.7Vdc to 2Vdc, 50A Output

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

Document No: DS010-005 ver. 1.23

PDF name: APTS050A0X_ds.pdf

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)

 Input voltage from 4.5Vdc to 14Vdc

 Output voltage programmable from 0.7 Vdc to

2.0Vdc via external resistor

 Output current up to 50A

 Tunable control loop for fast transient response

 True differential remote sense

 Negative remote On/Off logic

 Output voltage sequencing (EZ-SEQUENCE

)

 Output over current protection (non-latching)

 Over temperature protection

 Monotonic startup under pre-bias conditions

 Parallel operation with active current sharing

 Small size and low profile:

33 mm x 22.9 mm x 10 mm (max.)

(1.3 in x 0.9 in x 0.393 in (max.))

 Wide operating temperature range [-40°C to

105°C(Ruggedized: -D), 85°C(Regular)]

 UL* 60950-1, 2

Ed. Recognized, CSA

†

C22.2 No.

60950-1-07 Certified, and VDE

‡

(EN60950-1, 2

Ed.) Licensed

 ISO** 9001 and ISO 14001 certified manufacturing

facilities

Applications

 Distributed power architectures

 Intermediate bus voltage applications

 Industrial applications

 Telecommunications equipment

Description

The GigaTLynx

series of power modules are non-isolated dc-dc converters that can deliver up to 50A of output

current. These modules operate over a wide range of input voltage (V

= 4.5Vdc-14Vdc) and provide a precisely

regulated output voltage from 0.7Vdc to 2.0Vdc, programmable via an external resistor. Features include remote

On/Off, adjustable output voltage, over current and over temperature protection, output voltage sequencing and

paralleling. The Ruggedized version (-D) is capable of operation up to 105°C and withstand high levels of shock

and vibration. The Tunable Loop

feature, allows the user to optimize the dynamic response of the converter to

match the load with reduced amount of output capacitance leading to savings on cost and PWB area.

Vout+

VIN

SENSE-

RTrim

VOUT

TRIM+

SENSE+

CTUNE

SEQ

RTUNE

TRIM-

CI2

Vin+

CO1

CI1

CO2

ON/OFF

MODULE

GND

PGOOD

SENSE-

Data Sheet

September 7, 2011

GigaTLynxTM SMT Non-isolated Power Modules:

4.5 – 14Vdc input; 0.7Vdc to 2.0Vdc, 50A Output

LINEAGE POWER 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 14 Vdc

Continuous

Sequencing pin voltage All VsEQ -0.3 4 Vdc

Operating Ambient Temperature All TA -40 85 °C

(see Thermal Considerations section) -D version TA -40 105 °C

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 ≤ 2.0 VIN 4.5

⎯ 14 Vdc

Maximum Input Current All IIN,max Adc

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

Inrush Transient All I2 t 1

A2 s

Input No Load Current VO,set = 0.7Vdc IIN,No load 73.4 mA

(VIN = VIN

nom, Io = 0, module enabled) VO

set = 1.8Vdc IIN

No load 136 mA

Input Stand-by Current All IIN,stand-by 1.3 mA

(VIN = VIN

nom, module disabled)

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 73 mAp-p

Input Ripple Rejection (120Hz) All 50 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 an

integrated part of sophisticated 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 surface mount, fast acting fuse (ie. Littelfuse 456030 series) with a maximum rating of 30 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.

Data Sheet

September 7, 2011

GigaTLynxTM SMT Non-isolated Power Modules:

4.5 – 14Vdc input; 0.7Vdc to 2.0Vdc, 50A Output

LINEAGE POWER 3

Electrical Specifications (continued)

Parameter Device Symbol Min Typ Max Unit

Output Voltage Set-point

(VIN=VIN,nom, IO=IO, nom, Tref=25°C) All VO, set -1.0 ⎯ +1.0 % VO, set

Output Voltage All VO, set -2.0 ⎯ +2.0 % VO, set

(Over all operating input voltage, resistive load,

and temperature conditions until end of life)

Adjustment Range All VO 0.7 2.0 Vdc

Selected by an external resistor

Output Regulation

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

⎯ 5 mV

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

⎯ 8 mV

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

⎯ 8 mV

Remote Sense Range All 0.5 Vdc

Output Ripple and Noise on nominal output

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

Cout = 1μF ceramic//2x10μF ceramic

capacitors)

Peak-to-Peak (5Hz to 20MHz bandwidth) All ⎯ 50 mVpk-pk

External Capacitance 1

Without the Tunable LoopTM

ESR ≥ 1 mΩ All CO, max ⎯ ⎯ 1200 μF

ESR ≥ 10 mΩ All CO, max ⎯ ⎯ 10000 μF

With the Tunable Loop

ESR ≥ 1 mΩ All CO, max ⎯ ⎯ 20000 μF

ESR ≥ 10 mΩ All CO, max ⎯ ⎯ 20000 μF

Output Current All Io 0 50A Adc

Output Current Limit Inception (Hiccup Mode ) All IO, lim ⎯ 180 ⎯ % Io

Output Short-Circuit Current All IO, s/c ⎯ 5.5 ⎯ Adc

(VO≤250mV) ( Hiccup Mode )

Efficiency VO, set = 0.7Vdc η 81.1 %

VIN= 12V, TA=25°C VO,set = 1.2Vdc η 87.0 %

IO=IO, max , VO= VO,set V

O,set = 1.8Vdc η 90.1 %

Switching Frequency All fsw ⎯ 260 ⎯ kHz

General Specifications

Parameter Min Typ Max Unit

Telcordia Issue 2, Method I, Case 3, Calculated MTBF (IO=IO, max,

TA=40°C) 4,755,661 Hours

Weight ⎯ 14.22 (0.5) g (oz.)

__________________________________

External capacitors may require using the new Tunable LoopTM feature to ensure that the module is stable as well as

getting the best transient response. See the Tunable LoopTM section for details.

Data Sheet

September 7, 2011

GigaTLynxTM SMT Non-isolated Power Modules:

4.5 – 14Vdc input; 0.7Vdc to 2.0Vdc, 50A Output

LINEAGE POWER 4

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=VIN, min to VIN, max ; open collector or equivalent,

Signal referenced to GND)

Logic High (On/Off pin open – Module OFF)

Input High Current All IIH 0.5 ⎯ 3.3 mA

Input High Voltage All VIH 3.0 ⎯ VIN, max V

Logic Low (Module ON)

Input Low Current All IIL ⎯ ⎯ 200 µA

Input Low Voltage All VIL -0.3 ⎯ 0.6 V

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 ― 4.8 ― 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 ― 4.8 ― msec

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

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

All Trise ― 3.6 ― msec

Output voltage overshoot – Startup ― 3.0 % VO, set

IO= IO, max; VIN = 4.5 to 14Vdc, TA = 25 oC

Over Temperature Protection All Tref ⎯ 125 ⎯ °C

(See Thermal Consideration section)

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

(VIN, min to VIN, max; IO, min to IO, max VSEQ < Vo)

Sequencing Delay time (Delay from VIN, min

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

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

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

(VIN, min to VIN, max; IO, min - IO, max VSEQ < Vo)

Input Undervoltage Lockout

Turn-on Threshold All 4.26 V

Turn-off Threshold All 4.04 V

Hysteresis All

0.22 Vdc

Forced Load Share Accuracy All ⎯ 10 % Io

Number of units in Parallel All 5

PGOOD (Power Good)

Internal pull-up, VPGOOD All

5 V

Overvoltage threshold for PGOOD All 112.5 %VO

set

Undervoltage threshold for PGOOD All 87.5 %VO, set

Data Sheet

September 7, 2011

GigaTLynxTM SMT Non-isolated Power Modules:

4.5 – 14Vdc input; 0.7Vdc to 2.0Vdc, 50A Output

LINEAGE POWER 5

Characteristic Curves

The following figures provide typical characteristics for the 12V Giga TLynxTM 50A at 0.7Vo and at 25oC.

EFFICIENCY, η (%)

OUTPUT CURRENT, Io (A)

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

Figure 1. Converter Efficiency versus Output Current. Figure 2. Derating Output Current versus Ambient

Temperature and Airflow.

OUTPUT VOLTAGE

VO (V) (10mV/div)

OUTPUT

CURRENT

OUTPUT

VOLTAGE

IO (A) (20Adiv) VO (V) (10mV/div)

TIME, t (1μs/div) TIME, t (0.2ms /div)

Figure 3. Typical output ripple and noise (VIN = 12V, Io =

Io,max).

Figure 4. Transient Response to Dynamic Load

Change from 50% to 100% at 12Vin, Cext =5x47uF+

+22x330uFpolymer,CTune=330nF,RTune=100ohms

OUTPUT VOLTAGE ON/OFF VOLTAGE

VO (V) (200mV/div) VON/OFF (V) (5V/div)

OUTPUT VOLTAGE INPUT VOLTAGE

VO (V) (200mV/div) VIN (V) (5V/div)

TIME, t (2ms/div) TIME, t (2ms/div)

Figure 5. Typical Start-up Using On/Off Voltage (Io =

Io,max).

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

12V, Io = Io,max).

0 1020304050

Vin=4.5V

Vin=12V

Vin=14V

45 55 65 75 85 95 105

2m/s

(400LFM)

1.5m/s

(300LFM)

1m/s

(

200LFM

)

0.5m/s

(100LFM)

Ruggedized (D)

Part (105 C)

Standard Part

(85 C)

Data Sheet

September 7, 2011

GigaTLynxTM SMT Non-isolated Power Modules:

4.5 – 14Vdc input; 0.7Vdc to 2.0Vdc, 50A Output

LINEAGE POWER 6

Characteristic Curves

The following figures provide typical characteristics for the 12V Giga TLynxTM 50A at 1.2 Vo and at 25oC.

EFFICIENCY, η (%)

OUTPUT CURRENT, Io (A)

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

Figure 7. Converter Efficiency versus Output Current. Figure 8. Derating Output Current versus Ambient

Temperature and Airflow.

OUTPUT VOLTAGE

VO (V) (10mV/div)

OUTPUT

CURRENT

OUTPUT

VOLTAGE

IO (A) (20Adiv) VO (V) (10mV/div)

TIME, t (1μs/div) TIME, t (0.1ms /div)

Figure 9. Typical output ripple and noise (VIN = 12V, Io =

Io,max).

Figure 10. Transient Response to Dynamic Load

Change from 50% to 100% at 12Vin, Cext =5x47uF+

+13x330uFpolymer,CTune=120nF,RTune=180ohms

OUTPUT VOLTAGE ON/OFF VOLTAGE

VO (V) (500mV/div) VON/OFF (V) (5V/div)

OUTPUT VOLTAGE INPUT VOLTAGE

VO (V) (500mV/div) VIN (V) (5V/div)

TIME, t (2 ms/div) TIME, t (2 ms/div)

Figure 11. Typical Start-up Using On/Off Voltage (Io =

Io,max).

Figure 12. Typical Start-up Using Input Voltage (VIN =

12V, Io = Io,max).

0 1020304050

Vin=4.5V

Vin=12V

Vin=14V

45 55 65 75 85 95 105

2m/s

(400LFM)

1.5m/s

(300LFM)

1m/s

(200LFM)

0.5m/s

(100LFM)

Standard Part

(85 C)

Ruggedized (D)

Part (105 C)

Data Sheet

September 7, 2011

GigaTLynxTM SMT Non-isolated Power Modules:

4.5 – 14Vdc input; 0.7Vdc to 2.0Vdc, 50A Output

LINEAGE POWER 7

Characteristic Curves

The following figures provide typical characteristics for the 12V Giga TLynxTM 50A at 1.8 Vo and at 25oC.

EFFICIENCY, η (%)

OUTPUT CURRENT, Io (A)

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

Figure 13. Converter Efficiency versus Output Current. Figure 14. Derating Output Current versus Ambient

Temperature and Airflow.

OUTPUT VOLTAGE

VO (V) (10mV/div)

OUTPUT

CURRENT

OUTPUT

VOLTAGE

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

TIME, t (1μs/div) TIME, t (0.1ms /div)

Figure 15. Typical output ripple and noise (VIN = 12V, Io =

Io,max).

Figure 16. Transient Response to Dynamic Load

Change from 50% to 100% at 12Vin, Cext =5x47uF+

+8x330uFpolymer,CTune=47nF,RTune=220ohms

OUTPUT VOLTAGE ON/OFF VOLTAGE

VO(V) (500mV/div) VON/OFF (V) (5V/div)

OUTPUT VOLTAGE INPUT VOLTAGE

VO (V) (500mV/div) VIN (V) (5V/div)

TIME, t (2 ms/div) TIME, t (2 ms/div)

Figure 17. Typical Start-up Using On/Off Voltage (Io =

Io,max).

Figure 18. Typical Start-up Using Input Voltage (VIN =

12V, Io = Io,max).

100

0 1020304050

Vin=12V

Vin=4.5V

Vin=14V

35 45 55 65 75 85 95 105

2m/s

(400LFM)

1.5m/s

(300LFM)

1m/s

(200LFM)

0.5m/s

(100LFM)

Output Voltage set to 2V for thermal derating curve

Standard Part

(85 C)

Ruggedized (D)

Part (105 C)

Data Sheet

September 7, 2011

GigaTLynxTM SMT Non-isolated Power Modules:

4.5 – 14Vdc input; 0.7Vdc to 2.0Vdc, 50A Output

LINEAGE POWER 8

Test Configurations

TO OSCILLOSCOPE CURRENT PROBE

LTEST

1μH

BATTERY

CS 1000μF

Electrolytic

E.S.R.<0.1Ω

@ 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 19. Input Reflected Ripple Current Test Setup.

NOTE: All voltage measurements to be taken at the modu le

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.

Vo+

COM

0.1uF

RESISTIVE

LOAD

SCOPE U SING

BNC SOCKET

COPPER STRIP

GROUND PLANE

10uF

Figure 20. Output Ripple and Noise Test Setup.

COM

VIN(+)

COM

RLOAD

Rcontac t 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 21. Output Voltage and Efficiency Test Setup.

η =

VO. IO

VIN. IIN

x 100 %

Efficiency

Design Considerations

Input Filtering

The Giga TLynxTM module should be connected to a

low ac-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, ceramic capacitors

are recommended at the input of the module. Figure 22

shows the input ripple voltage for various output

voltages at maximum load current with 2x22 µF or

4x22 µF or 4x47 µF ceramic capacitors and an input of

12V.

Input Ripple Voltage (mVp-p)

Output Voltage (Vdc)

Figure 22. Input ripple voltage for various output

voltages with 2x22 µF, 4x22 µF or 4x47 µF ceramic

capacitors at the input (maximum load). Input voltage

is 12V

Output Filtering

The Giga TLynxTM modules are designed for low output

ripple voltage and will meet the maximum output ripple

specification with 0.1 µF ceramic and 10 µF ceramic

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. Figure 23 provides output ripple

information for different external capacitance values at

various Vo and for full load currents. For stable operation

of the module, limit the capacitance to less than the

maximum output capacitance as specified in the electrical

specification table. Optimal performance of the module

can be achieved by using the Tunable Loop feature described

later in this data sheet.

100

125

150

175

200

225

250

1 1.25 1.5 1.75 2

2x22uF

4x22uF

4x47uF

Data Sheet

September 7, 2011

GigaTLynx

SMT Non-isolated Power Modules:

4.5 – 14Vdc input; 0.7Vdc to 2.0Vdc, 50A Output

LINEAGE POWER

Feature Descriptions

Figure 23. Output ripple voltage for various output

voltages with external 2x10 µF, 2x47 µF, 4x47 µF or

8x47 µF ceramic capacitors at the output (50A load).

Input voltage is 12V.

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 2nd, CSA C22.2 No. 60950-1-07, DIN

EN 60950-1:2006 + A11 (VDE0805 Teil 1 + A11):2009-

11; EN 60950-1:2006 + A11:2009-03.

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

surface mount, fast acting fuse (ie. Littelfuse 456030

series) with a maximum rating of 30A in the positive input

lead.

Remote On/Off

The GigaTLynx

SMT power modules feature a On/Off

pin for remote On/Off operation. If not using the On/Off

pin, connect the pin to ground (the module will be ON).

The On/Off signal (V

on/off

) is referenced to ground. The

circuit configuration for remote On/Off operation of the

module using the On/Off pin is shown in Figure 24.

During a Logic High on the On/Off pin (transistor Q1 is

OFF), the module remains OFF. The external resistor R1

should be chosen to maintain 3.0V minimum on the

On/Off pin to ensure that the module is OFF when

transistor Q1 is in the OFF state. Suitable values for R1

are 4.7K for input voltage of 12V and 3K for 5Vin. During

Logic-Low when Q1 is turned ON, the module is turned

ON.

The On/Off pin can also be used to synchronize the

output voltage start-up and shutdown of multiple modules

in parallel. By connecting On/Off pins of multiple

modules, the output start-up can be synchronized (please

refer to characterization curves).

Overcurrent Protection

To provide protection in a fault (output overload)

condition, the unit should be 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 should operate

normally once the output current is brought back into its

specified range.

Figure 24. Remote On/Off Implementation

using ON/OFF .

Overtemperature Protection

To provide protection in a fault condition, the unit is

equipped with a thermal shutdown circuit. The unit will

shutdown if the overtemperature threshold of 125

C is

exceeded at the thermal reference point T

ref

. The thermal

shutdown is not intended as a guarantee that the unit will

survive temperatures beyond its rating. Once the unit

goes into thermal shutdown it will then wait to cool before

attempting to restart.

Input Undervoltage Lockout

At input voltages below the input undervoltage lockout

limit, module operation will be disabled. The module will

begin to operate at an input voltage above the

undervoltage lockout turn-on threshold.

Output Voltage Programming

The output voltage of the GigaTLynx

can be

programmable to any voltage from 0.7 Vdc to 2.0Vdc by

connecting a single resistor (shown as Rtrim in Figure 25)

between the TRIM+ and TRIM pins of the module. The

following equation will be used to set the output voltage of

the module:













−

=7.0

14000

trim

By using a ±0.5% tolerance trim resistor with a TC of

±100ppm, a set point tolerance of ±1.5% can be achieved

as specified in the electrical specification. Table 1

provides Rtrim values required for some common output

0.6 0.8 1 1.2 1.4 1.6 1.8 2

Ripple (mVp-p)

Output Voltage(Volts)

2x10uF Ext Cap

2x47uF Ext Cap

4x47uF Ext Cap

8x47uF Ext Cap

GND

PWM Enable

ON/OFF

VIN+

ON/OFF

MODULE

ON/OFF

5.11K

Data Sheet

September 7, 2011

GigaTLynxTM SMT Non-isolated Power Modules:

4.5 – 14Vdc input; 0.7Vdc to 2.0Vdc, 50A Output

LINEAGE POWER 10

voltages. 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.

Table 1

set (V) Rtrim (KΩ)

0.7 Open

1.0 46.6

1.2 28

1.5 17.5

1.8 12.7

(+)

TRIM+

GND

trim

LOAD

(+)

ON/OFF

Vout

TRIM−

Figure 25. Circuit configuration to program output

voltage using an external resistor.

Remote Sense

The GigaTLynxTM SMT power modules have differential

Remote Sense to minimize the effects of distribution

losses by regulating the voltage at the Remote Sense pin.

The voltage between the SENSE pin and VOUT pin must

not exceed 0.5V. Note that the output voltage of the

module cannot exceed the specified maximum value.

This includes the voltage drop between the SENSE and

Vout pins. When the Remote Sense feature is not being

used, connect the SENSE pin to the VOUT pin.

Voltage Margining

Output voltage margining can be implemented in the Giga

TLynxTM 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 output pin for margining-down. Figure 26

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 Rmargin-up and Rmargin-down for a

specific output voltage and % margin. Please consult

your local Lineage Power technical representative for

additional details.

Monotonic Start-up and Shutdown

The Giga TLynxTM modules have monotonic start-up and

shutdown behavior for any combination of rated input

voltage, output current and operating temperature range.

Startup into Pre-biased Output

The Giga TLynxTM modules can start into a prebiased

output as long as the prebias voltage is 0.5V less than

the set output voltage. Note that prebias operation is not

supported when output voltage sequencing is used.

Figure 26. Circuit Configuration for margining Output

voltage.

Output Voltage Sequencing

The Giga TLynxTM modules include a sequencing feature,

EZ-SEQUENCETM that enables 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,

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 final value of 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 basis. By connecting multiple

modules together, multiple modules can 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 so that the module is ON

by default. After applying input voltage to the module, a

minimum 10msec delay is required before applying

voltage on the SEQ pin. Alternatively, input voltage can

be applied while the unit is OFF and then the unit can be

enabled. In this case the SEQ signal must be applied

10ms after the unit is enabled. This delay gives the

module enough time to complete its internal power-up

soft-start cycle. During the delay time, the SEQ pin may

be held to ground.

After the 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-to-one volt bases until the

MODULE

TRIM–

TRIM+

Rtrim

Rmargin-up

Rmargin-down

Data Sheet

September 7, 2011

GigaTLynxTM SMT Non-isolated Power Modules:

4.5 – 14Vdc input; 0.7Vdc to 2.0Vdc, 50A Output

LINEAGE POWER

output reaches the set-point voltage. To initiate

simultaneous shutdown of the modules, the SEQ pin

voltage is lowered in a controlled manner. The 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-SEQUENCETM feature to control

start-up of the module, pre-bias immunity during start-up

is disabled. The pre-bias immunity feature of the module

relies on the module being in the diode-mode during

start-up. When using the EZ-SEQUENCETM feature,

modules goes through an internal set-up time of 10msec,

and will be in synchronous rectification mode when the

voltage at the SEQ pin is applied. This will result in the

module sinking current if a pre-bias voltage is present at

the output of the module. When pre-bias immunity during

start-up is required, the EZ-SEQUENCETM feature must

be disabled. For additional guidelines on using the EZ-

SEQUENCETM feature please contact the Lineage Power

technical representative for additional information.

Active Load Sharing (-P Option)

For additional power requirements, the Giga TLynxTM

power module is also available with a parallel option. Up

to five modules can be configured, in parallel, with active

load sharing.

Good layout techniques should be observed when using

multiple units in parallel. To implement forced load

sharing, the following connections should be made:

• The share pins of all units in parallel must be

connected together. The path of these connections

should be as direct as possible.

• All remote-sense pins should be connected to the

power bus at the same point, i.e., connect all the

SENSE(+) pins to the (+) side of the bus. Close

proximity and directness are necessary for good

noise immunity

Some special considerations apply for design of

converters in parallel operation:

• When sizing the number of modules required for

parallel operation, take note of the fact that current

sharing has some tolerance. In addition, under

transient conditions such as a dynamic load change

and during startup, all converter output currents will

not be equal. To allow for such variation and avoid

the likelihood of a converter shutting off due to a

current overload, the total capacity of the paralleled

system should be no more than 90% of the sum of

the individual converters. As an example, for a

system of four Giga TLynxTM converters in parallel,

the total current drawn should be less that 90% of (4

x 50A) , i.e. less than 180A.

• All modules should be turned on and off together.

This is so that all modules come up at the same time

avoiding the problem of one converter sourcing

current into the other leading to an overcurrent trip

condition. To ensure that all modules come up

simultaneously, the on/off pins of all paralleled

converters should be tied together and the

converters enabled and disabled using the on/off pin.

• The share bus is not designed for redundant

operation and the system will be non-functional upon

failure of one of the unit when multiple units are in

parallel. In particular, if one of the converters shuts

down during operation, the other converters may

also shut down due to their outputs hitting current

limit. In such a situation, unless a coordinated restart

is ensured, the system may never properly restart

since different converters will try to restart at different

times causing an overload condition and subsequent

shutdown. This situation can be avoided by having

an external output voltage monitor circuit that detects

a shutdown condition and forces all converters to

shut down and restart together.

When not using the active load share feature, share pins

should be left unconnected.

Power Good

The Giga TLynxTM modules provide a Power Good

(PGOOD) signal to indicate that the output voltage is

within the regulation limits of the power module. The

PGOOD signal will be de-asserted to a low state if any

condition such as overtemperature, overcurrent or loss of

regulation occurs that would result in the output voltage

going ±12.5% outside the setpoint value. The PGOOD

terminal is internally pulled-up and provides a voltage of

~5V, when asserted, thus eliminating the need for an

external source and pull-up resistor. Additional external

drive capability can be provided to the PGOOD terminal

by using a source less than 5V and a suitable pull-up

resistor to keep the overall external current below 4.5mA

Tunable Loop

The Giga TLynxTM modules have a new feature that

optimizes transient response of the module called

Tunable LoopTM.

External capacitors are usually added to the output of the

module for two reasons: to reduce output ripple and

noise (see Fig. 23) and to reduce output voltage

deviations from the steady-state value in the presence of

dynamic load current changes. Adding external

capacitance however affects the voltage control loop of

the module, typically causing the loop to slow down with

sluggish response. Larger values of external capacitance

could also cause the module to become unstable.

The Tunable LoopTM allows the user to externally adjust

the voltage control loop to match the filter network

connected to the output of the module. The Tunable

LoopTM is implemented by connecting a series R-C

between the SENSE and TRIM+ pins of the module, as

shown in Fig. 28. This R-C allows the user to externally

Data Sheet

September 7, 2011

GigaTLynxTM SMT Non-isolated Power Modules:

4.5 – 14Vdc input; 0.7Vdc to 2.0Vdc, 50A Output

LINEAGE POWER 12

adjust the voltage loop feedback compensation of the

module.

Figure. 28. Circuit diagram showing connection of

RTUME and CTUNE to tune the control loop of the

module.

Recommended values of RTUNE and CTUNE for different

output capacitor combinations are given in Tables 2 and

3. Table 2 shows the recommended values of RTUNE and

CTUNE for different values of ceramic output capacitors up

to 2000uF that might be needed for an application to

meet output ripple and noise requirements. Selecting

RTUNE and CTUNE according to Table 2 will ensure stable

operation of the module.

In applications with tight output voltage limits in the

presence of dynamic current loading, additional output

capacitance will be required. Table 3 lists recommended

values of RTUNE and CTUNE in order to meet 2% output

voltage deviation limits for some common output voltages

in the presence of a 25A to 50A step change (50% of full

load), with an input voltage of 12V.

Please contact your Lineage Power technical

representative to obtain more details of this feature as

well as for guidelines on how to select the right value of

external R-C to tune the module for best transient

performance and stable operation for other output

capacitance values or input voltages other than 12V.

Table 2. General recommended values of of RTUNE and

CTUNE for Vin=12V and various external ceramic

capacitor combinations.

Table 3. Recommended values of RTUNE and CTUNE to

obtain transient deviation of ≤2% of Vout for a 25A

step load with Vin=12V.

RTUNE

GND

TRIM+

MODULE

TRIM-

RTrim

SENSE+

CO1

SENSE-

VOUT

CTUNE

1 x 47uF 2x47uF 4x47uF 6x47uF 10 x 47u

20 x 47uF

TUNE

330 330 330 330 270 270

TUNE

330pF 560pF 1200pF 1800pF 2200pF 5600pF

1.8V 1.2V 0.7V

5x47uF +

8x330uF

polymer

5x47uF +

13x330uF

polymer

5x47uF +

22x330uF

polymer

TUNE

220 180 100

TUNE

47nF 120nF 330nF

35mV 23mV 14mV

Data Sheet

September 7, 2011

GigaTLynx

SMT Non-isolated Power Modules:

4.5 – 14Vdc input; 0.7Vdc to 2.0Vdc, 50A Output

LINEAGE POWER

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

29. Note that the airflow is parallel to the short axis of the

module as shown in Figure 30. The derating data applies

to airflow in either direction of the module’s short axis.

The thermal reference points, T

ref

used in the

specifications is shown in Figure 30. For reliable

operation the temperatures at this point should not

exceed 125

C. 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 30. Preferred airflow direction and location of

hot-spot of the module (Tref).

Figure 29. Thermal Test Setup.

flow

Power Module

ind Tunnel

PWBs

12.7_

(0.50)

76.2_

(3.0)

Probe Location

for measuring

airflow and

ambient

temperature

25.4_

(1.0)

Data Sheet

September 7, 2011

GigaTLynxTM SMT Non-isolated Power Modules:

4.5 – 14Vdc input; 0.7Vdc to 2.0Vdc, 50A Output

LINEAGE POWER 14

Shock and Vibration

The ruggedized (-D version) of the modules are designed to withstand elevated levels of shock and vibration to be

able to operate in harsh environments. The ruggedized modules have been successfully tested to the following

conditions:

Non operating random vibration:

Random vibration tests conducted at 25C, 10 to 2000Hz, for 30 minutes each level, starting from 30Grms (Z axis)

and up to 50Grms (Z axis). The units were then subjected to two more tests of 50Grms at 30 minutes each for a total

of 90 minutes.

Operating shock to 40G per Mil Std. 810F, Method 516.4 Procedure I:

The modules were tested in opposing directions along each of three orthogonal axes, with waveform and amplitude

of the shock impulse characteristics as follows:

All shocks were half sine pulses, 11 milliseconds (ms) in duration in all 3 axes.

Units were tested to the Functional Shock Test of MIL-STD-810, Method 516.4, Procedure I - Figure 516.4-4. A shock

magnitude of 40G was utilized. The operational units were subjected to three shocks in each direction along three

axes for a total of eighteen shocks.

Operating vibration per Mil Std 810F, Method 514.5 Procedure I:

The ruggedized (-D version) modules are designed and tested to vibration levels as outlined in MIL-STD-810F,

Method 514.5, and Procedure 1, using the Power Spectral Density (PSD) profiles as shown in Table 4 and Table 5

for all axes. Full compliance with performance specifications was required during the performance test. No damage

was allowed to the module and full compliance to performance specifications was required when the endurance

environment was removed. The module was tested per MIL-STD-810, Method 514.5, Procedure I, for functional

(performance) and endurance random vibration using the performance and endurance levels shown in Table 4 and

Table 5 for all axes. The performance test has been split, with one half accomplished before the endurance test and

one half after the endurance test (in each axis). The duration of the performance test was at least 16 minutes total

per axis and at least 120 minutes total per axis for the endurance test. The endurance test period was 2 hours

minimum per axis.

Table 4: Performance Vibration Qualification - All Axes

Frequency

(Hz)

PSD Level

(G2/Hz)

Frequency

(Hz)

PSD Level

(G2/Hz)

Frequency

(Hz)

PSD Level

(G2/Hz)

10 1.14E-03 170 2.54E-03 690 1.03E-03

30 5.96E-03 230 3.70E-03 800 7.29E-03

40 9.53E-04 290 7.99E-04 890 1.00E-03

50 2.08E-03 340 1.12E-02 1070 2.67E-03

90 2.08E-03 370 1.12E-02 1240 1.08E-03

110 7.05E-04 430 8.84E-04 1550 2.54E-03

130 5.00E-03 490 1.54E-03 1780 2.88E-03

140 8.20E-04 560 5.62E-04 2000 5.62E-04

Table 5: Endurance Vibration Qualification - All Axes

Frequency

(Hz)

PSD Level

(G2/Hz)

Frequency

(Hz)

PSD Level

(G2/Hz)

Frequency

(Hz)

PSD Level

(G2/Hz)

10 0.00803 170 0.01795 690 0.00727

30 0.04216 230 0.02616 800 0.05155

40 0.00674 290 0.00565 890 0.00709

50 0.01468 340 0.07901 1070 0.01887

90 0.01468 370 0.07901 1240 0.00764

110 0.00498 430 0.00625 1550 0.01795

130 0.03536 490 0.01086 1780 0.02035

140 0.0058 560 0.00398 2000 0.00398

Data Sheet

September 7, 2011

GigaTLynxTM SMT Non-isolated Power Modules:

4.5 – 14Vdc input; 0.7Vdc to 2.0Vdc, 50A Output

LINEAGE POWER

Example Application Circuit

Requirements:

Vin: 12V

Vout: 1.8V

Iout: 37.5A max., worst case load transient is from 25A to 37.5A

ΔVout: 1.5% of Vout (27mV) for worst case load transient

Vin, ripple 1.5% of Vin (180mV, p-p)

CI1 4x22μF/16V ceramic capacitor (e.g. Murata GRM32ER61C226KE20)

CI2 200μF/16V bulk electrolytic

CO1 5 x 47μF/6.3V ceramic capacitor (e.g. Murata GRM31CR60J476ME19)

CO2 8 x 330μF/6.3V Polymer (e.g. Sanyo Poscap)

CTune 47nF ceramic capacitor (can be 1206, 0805 or 0603 size)

RTune 220 ohms SMT resistor (can be 1206, 0805 or 0603 size)

RTrim 12.7kΩ SMT resistor (can be 1206, 0805 or 0603 size, recommended tolerance of 0.1%)

Vout+

VIN

SENSE-

RTrim

VOUT

TRIM+

SENSE+

CTUNE

SEQ

RTUNE

TRIM-

+ CI2

Vin+

CO1

CI1

+ CO2

ON/OFF

MODULE

GND

PGOOD

SENSE-

Data Sheet

September 7, 2011

GigaTLynxTM SMT Non-isolated Power Modules:

4.5 – 14Vdc input; 0.7Vdc to 2.0Vdc, 50A Output

LINEAGE POWER 16

Mechanical Outline of Module

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 VIN

2 GND

3 VOUT

4 VOUT

5 GND

6 VIN

7 SEQ

8 PGOOD

9 ON/OFF

10 VS-

11 VS+

12 +TRIM

13 –TRIM

14 SHARE

Data Sheet

September 7, 2011

GigaTLynxTM SMT Non-isolated Power Modules:

4.5 – 14Vdc input; 0.7Vdc to 2.0Vdc, 50A Output

LINEAGE POWER

Mechanical Outline

Dimensions are in inches and (millimeters).

Tolerances: x.xx in. ± 0.02 in. (x.x mm ± 0.5 mm) [unless otherwise indicated]

x.xxx in ± 0.010 in. (x.xx mm ± 0.25 mm)

PIN FUNCTION

1 VIN

2 GND

3 VOUT

4 VOUT

5 GND

6 VIN

7 SEQ

8 PGOOD

9 ON/OFF

10 VS-

11 VS+

12 +TRIM

13 –TRIM

14 SHARE

Data Sheet

September 7, 2011

GigaTLynxTM SMT Non-isolated Power Modules:

4.5 – 14Vdc input; 0.7Vdc to 2.0Vdc, 50A Output

LINEAGE POWER 18

Packaging Details

The Giga TLynxTM SMT modules are supplied in tape & reel as standard. Modules are shipped in quantities of 140

modules per reel.

All Dimensions are in millimeters and (in inches).

Reel Dimensions

Outside diameter: 330.2 (13.0)

Inside diameter: 177.8 (7.0)

Tape Width: 56.0 (2.20)

Data Sheet

September 7, 2011

GigaTLynxTM SMT Non-isolated Power Modules:

4.5 – 14Vdc input; 0.7Vdc to 2.0Vdc, 50A Output

LINEAGE POWER 19

Surface Mount Information

Pick and Place

The Giga TLynxTM 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 place operations. The label meets all the

requirements for surface mount processing, as well as

safety standards, and is able to withstand reflow

temperatures of up to 300oC. The label also carries

product information such as product code, serial

number and location of manufacture.

Figure 31. 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 inside

nozzle diameter for reliable operation is 3mm. The

maximum nozzle outer diameter, which will safely fit

within the allowable component spacing, is 5 mm

max.

Bottom Side Assembly

This module is not recommended for assembly

on the bottom side of a customer board. If such

an assembly is attempted, components may fall

off the module during the second reflow process.

If assembly on the bottom side is planned, please

contact Lineage Power for special manufacturing

process instructions.

Lead-free (Pb-free) Soldering

The –Z version Giga TLynx 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 5-2). The suggested Pb-free solder

paste is Sn/Ag/Cu (SAC).

Recommended linear reflow profile using Sn/Ag/Cu

solder:

NOTE: Soldering outside of the recommended

profile requires testing to verify results and

performance.

Tin Lead Soldering

The Giga TLynxTM SMT power modules are lead free

modules and can be soldered either in a lead-free

solder process or in a conventional Tin/Lead (Sn/Pb)

process. It is recommended that the customer review

data sheets in order to customize the solder reflow

profile for each application board assembly. The

following instructions must be observed when

soldering these units. Failure to observe these

instructions may result in the failure of or cause

damage to the modules, and can adversely affect

long-term reliability.

Data Sheet

September 7, 2011

GigaTLynxTM SMT Non-isolated Power Modules:

4.5 – 14Vdc input; 0.7Vdc to 2.0Vdc, 50A Output

LINEAGE POWER 20

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

peak reflow temperatures are limited to less than

235oC. Typically, the eutectic solder melts at 183oC,

wets the land, and subsequently wicks the device

connection. Sufficient time must be allowed to fuse

the plating on the connection to ensure a reliable

solder joint. There are several types of SMT reflow

technologies currently used in the industry. These

surface mount power modules can be reliably

soldered using natural forced convection, IR (radiant

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

reliable soldering the solder reflow profile should be

established by accurately measuring the modules CP

connector temperatures.

REFLOW TEMP (°C)

REFLOW TIME (S)

Figure 32. Reflow Profile for Tin/Lead (Sn/Pb)

process.

MAX TEMP SOLDER (°C)

Figure 33. Time Limit Curve Above 205oC

Reflow for Tin Lead (Sn/Pb) process.

MSL Rating

The Giga TLynxTM SMT modules have a MSL rating

of 2.

Storage and Handling

The recommended storage environment and handling

procedures for moisture-sensitive surface mount

packages is detailed in J-STD-033 Rev. B (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).

10 0

15 0

200

250

300

Preheat zone

max 4

-1

Soak zone

30-240s

Heat zone

max 4

-1

Peak Temp 235

Co o ling

zo ne

1- 4

-1

lim

above

205

200

205

210

215

220

225

230

235

240

0 102030405060

Data Sheet

September 7, 2011

GigaTLynxTM SMT Non-isolated Power Modules:

4.5 – 14Vdc input; 0.7Vdc to 2.0Vdc, 50A Output

LINEAGE POWER 21

Document No: DS10-005 ver. 1.23

PDF name: APTS050A0X_ds.pdf

Ordering Information

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

Table 6. Device Codes

Device Code

Input

Voltage

Range

Output

Voltage

Output

Current

On/Off

Logic Sequencing Comcodes

APTS050A0X3-SRPHZ 4.5 – 14Vdc 0.7 – 2.0Vdc 50A Negative Yes CC109155314

APTS050A0X3-SRPHDZ 4.5 – 14Vdc 0.7 – 2.0Vdc 50A Negative Yes CC109170585

Table 7. Coding Scheme

TLynx

family

Sequencing

feature.

Input

voltage

range

Output

current

Output

voltage

On/Off

logic

Remote

Sense

Options ROHS

Compliance

AP T S 050

3 -SRPHD Z

T = with Seq.

S = 4.5 -

14V 50A

X =

programm

able output

No entry

negative

4 =

positive

3 =

Remote

Sense

S = Surface

Mount

R = Tape&Reel

P = Paralleling

H=2 ground

pins

D = 105°C

operating

ambient, 40G

operating

shock as per

MIL Std 810F

Z = ROHS6

World Wide Headquarters

Lineage Power Corporation

601 Shiloh Road, Plano, TX 75074, USA

+1-888-LINEAGE(546-3243)

(Outside U.S.A.: +1-972-244-WATT(9288))

www.lineagepower.com

e-mail: techsupport1@lineagepower.com

Asia-Pacific Headquarters

Tel: +86.021.54279977*808

Europe, Middle-East and Africa Headquarters

Tel: +49.89.878067-280

India Headquarters

Tel: +91.80.28411633

Lineage Power reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or

pplication. No rights under any patent accompany the sale of any such product(s) or information.

Lineage Power DC-DC products are protected under various patents. Information on these patents is available at www.lineagepower.com/patents.

2011 Lineage Power Corporation, (Plano, Texas) All International Rights Reserved.