APXH006A0X-SRZ - ABB - Datasheet.Directory

GE Data Sheet

reserved.

PicoTLynxTM 6A: Non-Isolated DC-DC Power Modules

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 6A Output Current

Features

 Compliant to RoHS EU Directive 2002/95/EC (Z versions)

 Compatible in a Pb-free or SnPb reflow environment (Z

versions)

 Wide Input voltage range (2.4Vdc-5.5Vdc)

 Output voltage programmable from 0.6Vdc to 3.63 Vdc

via external resistor

 Tunable LoopTM to optimize dynamic output voltage

response

 Flexible output voltage sequencing EZ-SEQUENCE –

APTH versions

 Remote sense

 Fixed switching frequency

 Output overcurrent protection (non-latching)

 Overtemperature protection

 Cost efficient open frame design

 Remote On/Off

 Ability to sink and source current

 Small size:

12.2 mm x 12.2 mm x 7.25 mm

(0.48 in x 0.48 in x 0.29 in)

 Wide operating temperature range (-40°C to 85°C)

 UL* 60950-1Recognized, CSA† C22.2 No. 60950-1-03

Certified, and VDE‡ 0805:2001-12 (EN60950-1) Licensed

 ISO** 9001 and ISO 14001 certified manufacturing

facilities

Applications

 Distributed power architectures

 Intermediate bus voltage applications

 Telecommunications equipment

 Servers and storage applications

 Networking equipment

 Industrial Equipment

Description

The Pico TLynxTM 6A power modules are non-isolated dc-dc converters that can deliver up to 6A of output current. These modules

operate over a wide range of input voltage (VIN = 2.4Vdc-5.5Vdc) and provide a precisely regulated output voltage from 0.6Vdc to

3.63Vdc, programmable via an external resistor. Features include remote On/Off, adjustable output voltage, over current and

overtemperature protection, and output voltage sequencing (APTH versions). A new feature, the Tunable LoopTM , 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.

* 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

TRIM

VOUT

SENSE

GND

CTUNE

RTUNE

RTrim

VIN

Cin

Vin+ Vout+

ON/OFF

SEQ

MODULE

RoHS Compliant

EZ-SEQUENCETM

GE Data Sheet

PicoTLynxTM 6A: Non-Isolated DC-DC Power Modules

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 6A 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 All VIN -0.3 6 Vdc

Continuous

Sequencing Voltage APTH VSEQ -0.3 ViN, Max Vdc

Operating Ambient Temperature All TA -40 85 °C

(see Thermal Considerations section)

Storage Temperature All Tstg -55 125 °C

Electrical Specifications

Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions.

Parameter Device Symbol Min Typ Max Unit

Operating Input Voltage All VIN 2.4

 5.5 Vdc

Maximum Input Current All IIN,max 6.5 Adc

(VIN=2.4V to 5.5V, IO=IO, max )

Input No Load Current VO,set = 0.6 Vdc IIN,No load 30 mA

(VIN = 5.0Vdc, IO = 0, module enabled) VO,set = 3.3Vdc IIN,No load 75 mA

Input Stand-by Current All IIN,stand-by 2.2 mA

(VIN = 5.0Vdc, module disabled)

Inrush Transient All I2t 1 A2s

Input Reflected Ripple Current, peak-to-peak

(5Hz to 20MHz, 1μH source impedance; VIN =0 to

5.5V, IO= IOmax ; See Test Configurations)

All 25 mAp-p

Input Ripple Rejection (120Hz) All 40 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 fast-acting fuse with a maximum rating

of 6A (see Safety Considerations section). Based on the information provided in this data sheet on inrush energy and maximum dc

input current, the same type of fuse with a lower rating can be used. Refer to the fuse manufacturer’s data sheet for further

information.

GE Data Sheet

PicoTLynxTM 6A: Non-Isolated DC-DC Power Modules

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 6A Output Current

reserved. Page 3

Electrical Specifications (continued)

Parameter Device Symbol Min Typ Max Unit

Output Voltage Set-point (with 0.5% tolerance for

external resistor used to set output voltage) All VO, set -1.5 +1.5 % VO, set

Output Voltage All VO, set -3.0  +3.0 % VO, set

(Over all operating input voltage, resistive load, and

temperature conditions until end of life)

Adjustment Range All VO 0.6 3.63 Vdc

Selected by an external resistor

Output Regulation (for VO ≥ 2.5Vdc)

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

 +0.4 % VO, set

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

 10 mV

Output Regulation (for VO < 2.5Vdc)

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

 10 mV

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

 5 mV

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

 0.4 % VO, set

Remote Sense Range All 0.5 Vdc

Output Ripple and Noise on nominal output

(VIN=VIN, nom and IO=IO, min to IO, max Co = 0.1μF // 10 μF

ceramic capacitors)

Peak-to-Peak (5Hz to 20MHz bandwidth) All  25 35 mVpk-pk

RMS (5Hz to 20MHz bandwidth) 10 15 mVrms

External Capacitance1

Without the Tunable LoopTM

ESR ≥ 1 mΩ All CO, max 0  47 μF

With the Tunable LoopTM

ESR ≥ 0.15 mΩ All CO, max 0 1000 μF

ESR ≥ 10 mΩ All CO, max 0  3000 μF

Output Current All Io 0 6 Adc

Output Current Limit Inception (Hiccup Mode ) All IO, lim 200 % Io,max

Output Short-Circuit Current All IO, s/c 0.23 Adc

(VO≤250mV) ( Hiccup Mode )

Efficiency VO,set = 0.6Vdc η 72.3 %

VIN= 3.3Vdc, TA=25°C VO, set = 1.2Vdc η 82.7 %

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

O,set = 1.8Vdc η 87.7 %

O,set = 2.5Vdc η 91.4 %

VIN= 5Vdc VO,set = 3.3Vdc η 93.0 %

Switching Frequency All fsw  600  kHz

Dynamic Load Response

(dIo/dt=10A/s; VIN = 5V; Vout = 1.8V, TA=25°C)

Load Change from Io= 0% to 50% of Io,max; Co = 0

Peak Deviation All Vpk 180 mV

Settling Time (Vo<10% peak deviation) All ts 20 s

Load Change from Io= 50% to 0% of Io,max:

Co = 0

Peak Deviation All Vpk 170 mV

Settling Time (Vo<10% peak deviation) All ts 20 s

1 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.

GE Data Sheet

PicoTLynxTM 6A: Non-Isolated DC-DC Power Modules

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 6A Output Current

reserved. Page 4

General Specifications

Parameter Min Typ Max Unit

Calculated MTBF (IO=IO, max, TA=25°C) Telecordia Issue 2, Method 1 Case 3 34,602,572 Hours

Weight  1.95 (0.0687)  g (oz.)

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 Si

nal Interface

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

Signal referenced to GND)

Device with suffix “4” – Positive Logic (See Ordering

Information)

Logic High (Module ON)

Input High Current All IIH  10 µA

Input High Voltage All VIH 1.2  VIN,max V

Logic Low (Module OFF)

Input Low Current All IIL   1 mA

Input Low Voltage All VIL -0.3  0.3 V

Device Code with no suffix – Negative Logic (See Ordering

Information)

(On/OFF pin is open collector/drain logic input with

external pull-up resistor; signal referenced to GND)

Logic High (Module OFF)

Input High Current All IIH — — 1 mA

Input High Voltage All VIH V

IN – 1.6 — VIN, max Vdc

Logic Low (Module ON)

Input low Current All IIL — — 0.2 mA

Input Low Voltage All VIL -0.2 — VIN – 1.6 Vdc

Turn-On Delay and Rise Times

(VIN=VIN, nom, IO=IO, max , VO to within ±1% of steady state)

Case 1: On/Off input is enabled and then input power is

applied (delay from instant at which VIN = VIN, min until Vo =

10% of Vo, set)

All Tdelay — 2 — msec

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 Vo = 10% of Vo, set)

All Tdelay — 2 — msec

Output voltage Rise time (time for Vo to rise from

10% of Vo, set to 90% of Vo, set) All Trise — 5 — msec

Output voltage overshoot (TA = 25oC 3.0 % VO, set

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

With or without maximum external capacitance

Over Temperature Protection All Tref 140 °C

(See Thermal Considerations section)

Sequencing Delay time

Delay from VIN, min to application of voltage on SEQ

in All TsEQ-delay 10 msec

Tracking Accuracy (Power-Up: 2V/ms) APTH VSEQ –Vo 100 mV

(Power-Down: 2V/ms) APTH VSEQ –Vo 100 mV

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

GE Data Sheet

PicoTLynxTM 6A: Non-Isolated DC-DC Power Modules

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 6A Output Current

reserved. Page 5

Feature Specifications (continued)

Parameter Device Symbol Min Typ Max Unit

Input Undervoltage Lockout

Turn-on Threshold All 2.2 Vdc

Turn-off Threshold All 1.75 Vdc

Hysteresis All

0.08 0.2 Vdc

GE Data Sheet

PicoTLynxTM 6A: Non-Isolated DC-DC Power Modules

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 6A Output Current

reserved. Page 6

Characteristic Curves

The following figures provide typical characteristics for the Pico TLynxTM 6A modules at 0.6Vo and 25oC.

EFFICIENCY,  (%)

0123456

Vin=5.5V

Vin=3.3V

Vin=2.4V

OUTPUT CURRENT, Io (A)

5.0

5.2

5.4

5.6

5.8

6.0

6.2

20 30 40 50 60 70 80 90

0.5m/s

(100LFM)

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) (20mV/div)

UTPUT CURRENT, OUTPUT VOLTAGE

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

TIME, t (1s/div) TIME, t (20s /div)

Figure 3. Typical output ripple and noise (VIN = 5V, Io = Io,max). Figure 4. Transient Response to Dynamic Load Change from

0% to 50% to 0% with VIN=5V .

ON/OFF VOLTAGE OUTPUT VOLTAGE

VON/OFF(V) (2V/div) VO (V) (200mV/div)

INPUT VOLTAGE OUTPUT VOLTAGE

VIN (V) (2V/div) VO (V) (200mV/div)

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

Figure 5. Typical Start-up Using On/Off Voltage (Io = Io,max). Figure 6. Typical Start-up Using Input Voltage (VIN = 5V, Io =

Io,max).

GE Data Sheet

PicoTLynxTM 6A: Non-Isolated DC-DC Power Modules

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 6A Output Current

reserved. Page 7

Characteristic Curves (continued)

The following figures provide typical characteristics for the Pico TLynxTM 6A modules at 1.2Vo and 25oC.

EFFICIENCY,  (%)

0123456

Vin=5.5V

Vin=3.3V

Vin=2.4V

OUTPUT CURRENT, Io (A)

5.0

5.2

5.4

5.6

5.8

6.0

6.2

20 30 40 50 60 70 80 9

0.5m/s

(100LFM)

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) (20mV/div)

OUTPUT CURRENT, OUTPUT VOLTAGE

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

TIME, t (1s/div) TIME, t (20s /div)

Figure 9. Typical output ripple and noise (VIN = 5V, Io = Io,max). Figure 10. Transient Response to Dynamic Load Change

from 0% to 50% to 0% with VIN=5V.

ON/OFF VOLTAGE OUTPUT VOLTAGE

VON/OFF (V) (2V/div) VO (V) (500mV/div)

INPUT VOLTAGE OUTPUT VOLTAGE

VIN (V) (2V/div) VO (V) (500mV/div)

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

Figure 11. Typical Start-up Using On/Off Voltage (Io = Io,max). Figure 12. Typical Start-up Using Input Voltage (VIN = 5V, Io

= Io,max).

GE Data Sheet

PicoTLynxTM 6A: Non-Isolated DC-DC Power Modules

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 6A Output Current

reserved. Page 8

Characteristic Curves (continued)

The following figures provide typical characteristics for the Pico TLynxTM 6A modules at 1.8Vo and 25oC

EFFICIENCY,  (%)

0123456

Vin=5.5V

Vin=3.3V

Vin=2.4V

OUTPUT CURRENT, Io (A)

5.0

5.2

5.4

5.6

5.8

6.0

6.2

20 30 40 50 60 70 80 90

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) (20mV/div)

OUTPUT CURRENT, OUTPUT VOLTAGE

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

TIME, t (1s/div) TIME, t (20s /div)

Figure 15. Typical output ripple and noise (VIN = 5V, Io = Io,max). Figure 16. Transient Response to Dynamic Load Change

from 0% to 50% to 0% with VIN=5V.

ON/OFF VOLTAGE OUTPUT VOLTAGE

VON/OFF (V) (2V/div) VO (V) (500mV/div)

INPUT VOLTAGE OUTPUT VOLTAGE

VIN (V) (2V/div) VO (V) (1V/div)

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

Figure 17. Typical Start-up Using On/Off Voltage (Io = Io,max). Figure 18. Typical Start-up Using Input Voltage (VIN = 5V, Io

= Io,max).

GE Data Sheet

PicoTLynxTM 6A: Non-Isolated DC-DC Power Modules

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 6A Output Current

reserved. Page 9

Characteristic Curves (continued)

The following figures provide typical characteristics for the Pico TLynxTM 6A modules at 2.5Vo and 25oC

EFFICIENCY,  (%)

100

0123456

Vin=5.5V

Vin=3.3V

Vin=3V

OUTPUT CURRENT, Io (A)

5.0

5.2

5.4

5.6

5.8

6.0

6.2

20 30 40 50 60 70 80 90

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

Figure 19. Converter Efficiency versus Output Current. Figure 20. Derating Output Current versus Ambient

Temperature and Airflow.

OUTPUT VOLTAGE

VO (V) (20mV/div)

OUTPUT CURRENT, OUTPUT VOLTAGE

IO (A) (2Adiv) VO (V) (200mV/div)

TIME, t (1s/div) TIME, t (20s /div)

Figure 21. Typical output ripple and noise (VIN = 5V, Io = Io,max). Figure 22. Transient Response to Dynamic Load Change

from 0% to 50% to 0% with VIN=5V.

ON/OFF VOLTAGE OUTPUT VOLTAGE

VON/OFF (V) (2V/div) VO (V) (1V/div)

INPUT VOLTAGE OUTPUT VOLTAGE

VIN (V) (2V/div) VO (V) (1V/div)

TIME, t (5ms/div) TIME, t (1ms/div)

Figure 23. Typical Start-up Using On/Off Voltage (Io = Io,max). Figure 24. Typical Start-up Using Input Voltage (VIN = 5V,

Io = Io,max).

GE Data Sheet

PicoTLynxTM 6A: Non-Isolated DC-DC Power Modules

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 6A Output Current

reserved. Page 10

Characteristic Curves (continued)

The following figures provide typical characteristics for the Pico TLynxTM 6A modules at 3.3Vo and 25oC

EFFICIENCY,  (%)

100

0123456

Vin=4V

Vin=5V

Vin=5.5V

OUTPUT CURRENT, Io (A)

5.0

5.2

5.4

5.6

5.8

6.0

6.2

20 30 40 50 60 70 80 90

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

Figure 25. Converter Efficiency versus Output Current. Figure 26. Derating Output Current versus Ambient

Temperature and Airflow.

OUTPUT VOLTAGE

VO (V) (20mV/div)

OUTPUT CURRENT, OUTPUT VOLTAGE

IO (A) (2Adiv) VO (V) (200mV/div)

TIME, t (1s/div) TIME, t (20s /div)

Figure 27. Typical output ripple and noise (VIN = 5V, Io = Io,max). Figure 28. Transient Response to Dynamic Load Change

from 0% 50% to 0% with VIN=5V.

ON/OFF VOLTAGE OUTPUT VOLTAGE

VON/OFF (V) (2V/div) VO (V) (1V/div)

INPUT VOLTAGE OUTPUT VOLTAGE

VIN (V) (2V/div) VO (V) (1V/div)

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

Figure 29. Typical Start-up Using On/Off Voltage (Io = Io,max). Figure 30. Typical Start-up Using Input Voltage (VIN = 5V, Io

= Io,max).

GE Data Sheet

PicoTLynxTM 6A: Non-Isolated DC-DC Power Modules

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 6A Output Current

reserved. Page 11

Test Configurations

TO OSCILLOSCOPE CURRENT PROBE

LTEST

1μH

BATTERY

CS 1000μF

Electrolytic

E.S.R.<0.1

@ 20°C 100kHz

2x100μF

Tantalum

VIN(+)

COM

NOTE: Measure input reflected ripple current with a simulated

source inductance (LTEST) of 1μH. Capacitor CS offsets

possible battery impedance. Measure current as shown

above.

CIN

Figure 31. Input Reflected Ripple Current Test Setup.

NOTE: All voltage measurements to be taken at the module

terminals, as shown above. If sockets are used then

Kelvin connections are required at the module terminals

to avoid measurement errors due to socket contact

resistance.

Vo+

COM

0.1uF

RESISTIVE

LOAD

SCOPE U SING

BNC SOCKET

COPPER STRIP

GROUND PLANE

10uF

Figure 32. Output Ripple and Noise Test Setup.

COM

VIN(+)

COM

RLOAD

Rcontact Rdistribution

Rcontact

Rdistribution

VIN VO

NOTE: All voltage measurements to be taken at the module

terminals, as shown above. If sockets are used then

Kelvin connections are required at the module terminals

to avoid measurement errors due to socket contact

resistance.

Figure 33. Output Voltage and Efficiency Test Setup.

 =

VO. IO

VIN. IIN

x 100 %

Efficiency

Design Considerations

Input Filtering

The Pico TLynxTM 6A modules 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 34 shows the

input ripple voltage for various output voltages at 6A of load

current with 1x22 µF or 2x22 µF ceramic capacitors and an input

of 5V. Figure 35 shows data for the 3.3Vin case, with 1x22µF or

2x22µF of ceramic capacitors at the input.

Input Ripple Voltage (mVp-p)

100

120

0.5 1 1.5 2 2.5 3 3.5

1x22uF

2x22uF

Output Voltage (Vdc)

Figure 34. Input ripple voltage for various output voltages

with 1x22 µF or 2x22 µF ceramic capacitors at the input (6A

load). Input voltage is 5V.

Input Ripple Voltage (mVp-p)

100

120

0.5 1 1.5 2 2.5 3

1x22uF

2x22uF

Output Voltage (Vdc)

Figure 35. Input ripple voltage in mV, p-p for various output

voltages with 1x22 µF or 2x22 µF ceramic capacitors at the

input (6A load). Input voltage is 3.3V.

Output Filtering

The Pico TLynxTM 6A 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

GE Data Sheet

PicoTLynxTM 6A: Non-Isolated DC-DC Power Modules

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 6A Output Current

reserved. Page 12

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 36 provides output ripple information for different

external capacitance values at various Vo and for load currents

of 6A while maintaining an input voltage of 5V. Fig 37 shows the

performance with a 3.3V input. 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 LoopTM feature described later in this data sheet.

0.5 1 1.5 2 2.5 3 3.5

Out put Vol t age( Vol t s)

Ripple(mVp-p)

1x10uF External Cap

1x47uF External Cap

2x47uF External Cap

4x47uF External Cap

Figure 36. Output ripple voltage for various output voltages

with external 1x10 µF, 1x47 µF, 2x47 µF or 4x47 µF ceramic

capacitors at the output (6A load). Input voltage is 5V.

0.5 1 1.5 2 2.5 3

Output Voltage(Volts)

Ripple(mVp-p)

1x10uF External Cap

1x47uF External Cap

2x47uF External Cap

4x47uF External Cap

Figure 37. Output ripple voltage for various output voltages

with external 1x10 µF, 1x47 µF, 2x47 µF or 4x47 µF ceramic

capacitors at the output (6A load). Input voltage is 3.3V.

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 6A in the positive input lead.

GE Data Sheet

PicoTLynxTM 6A: Non-Isolated DC-DC Power Modules

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 6A Output Current

reserved. Page 13

Feature Descriptions

Remote On/Off

The Pico TLynxTM 6A modules feature an On/Off pin for remote

On/Off operation. Two On/Off logic options are available. In the

Positive Logic On/Off option, (device code suffix “4” see Ordering

Information), the module turns ON during a logic High on the

On/Off pin and turns OFF during a logic Low. With the Negative

Logic On/Off option, (no device code suffix see Ordering

Information), the module turns OFF during logic High and ON

during logic Low. The On/Off signal is always referenced to

ground. For either On/Off logic option, leaving the On/Off pin

disconnected will turn the module ON when input voltage is

present.

For positive logic modules, the circuit configuration for using the

On/Off pin is shown in Figure 38. When the external transistor Q1

is in the OFF state, Q2 is ON, the internal PWM Enable signal is

pulled low and the module is ON. When transistor Q1 is turned

ON, the On/Off pin is pulled low, Q2 is turned off and the internal

PWM Enable signal is pulled high through the 100K internal pull-

up resistor and the module is OFF.

Figure 38. Circuit configuration for using positive On/Off

logic.

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

shown in Fig. 39. The On/Off pin should be pulled high with an

external pull-up resistor (suggested value for the 2.4V to 5.5Vin

range is 3.6Kohms). When transistor Q1 is in the OFF state, the

On/Off pin is pulled high and the module is OFF. The On/Off

threshold for logic High on the On/Off pin depends on the input

voltage and its minimum value is VIN – 1.6V. To turn the module

ON, Q1 is turned ON pulling the On/Off pin low.

Figure 39. Circuit configuration for using negative On/Off

logic.

Over Current 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.

Over Temperature 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 140oC is exceeded at the thermal

reference point Tref . 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, the

module operation is 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 Pico TLynxTM 6A module can be

programmed to any voltage from 0.6Vdc to 3.63Vdc by

connecting a resistor between the Trim and GND pins of the

module. Certain restrictions apply on the output voltage set

point depending on the input voltage. These are shown in the

Output Voltage vs. Input Voltage Set Point Area plot in Fig. 40.

The Upper Limit curve shows that the entire output voltage

range is available with the maximum input voltage of 5.5V. The

Lower Limit curve shows that for output voltages of 1.8V and

higher, the input voltage needs to be larger than the minimum

of 2.4V.

100K

GND

PWM Enable

ON/OFF

VIN+

ON/OFF

MODULE

ON/OFF

20K

100

GND

PWM Enable

ON/OFF

VIN+

ON/OFF

MODULE

Rpullup

ON/OFF

2.05K

20K

GE Data Sheet

PicoTLynxTM 6A: Non-Isolated DC-DC Power Modules

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 6A Output Current

reserved. Page 14

0.511.522.533.54

Output Voltage (V)

Input Voltage (v)

Upper Li m i t

Lower Li m i t

Figure 40. Output Voltage vs. Input Voltage Set Point Area plot

showing limits where the output voltage can be set for

different input voltages.

Without an external resistor between Trim and GND pins, the

output of the module will be 0.6Vdc. To calculate the value of

the trim resistor, Rtrim for a desired output voltage, use the

following equation:



















k

Rtrim 6.0

2.1

Rtrim is the external resistor in kΩ

Vo is the desired output voltage.

Table 1 provides Rtrim values required for some common output

voltages.

Table 1

VO, set (V) Rtrim (KΩ)

0.6 Open

1.0 3.0

1.2 2.0

1.5 1.333

1.8 1.0

2.5 0.632

3.3 0.444

By using a ±0.5% tolerance trim resistor with a TC of ±25ppm, a

set point tolerance of ±1.5% can be 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 trim resistor needed for a specific output

voltage.

(+)

TRIM

GND

trim

LOAD

(+)

ON/OFF

Vout

Figure 41. Circuit configuration for programming output

voltage using an external resistor.

Remote Sense

The Pico TLynxTM 6A modules have a Remote Sense feature to

minimize the effects of distribution losses by regulating the

voltage at the 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 Pico

TLynxTM 6A modules by connecting a resistor, Rmargin-up, from

the Trim pin to the ground pin for margining-up the output

voltage and by connecting a resistor, Rmargin-down, from the Trim

pin to the Output pin for margining-down. Figure 42 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.

MODULE

GND

Trim

Rtrim

Rmargin-up

Rmargin-down

Figure 42. Circuit Configuration for margining Output

voltage.

Monotonic Start-up and Shutdown

The Pico TLynxTM 6A 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 5.5V Pico TLynxTM 6A 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.

GE Data Sheet

PicoTLynxTM 6A: Non-Isolated DC-DC Power Modules

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 6A Output Current

reserved. Page 15

Output Voltage Sequencing

The APTH006A0X modules include a sequencing feature, EZ-

SEQUENCE 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, either tie the SEQ pin to VIN or 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 volt basis. By

connecting the SEQ pins of multiple modules together, all

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 for negative logic modules or tied to VIN for positive

logic modules) 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. This delay

gives the module enough time to complete its internal power-up

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

held close to ground (nominally 50mV ± 20 mV). This is required

to keep the internal op-amp out of saturation thus preventing

output overshoot during the start of the sequencing ramp. By

selecting resistor R1 (see fig. 43) according to the following

equation

05.0

24950

1



R ohms,

the voltage at the sequencing pin will be 50mV when the

sequencing signal is at zero.

GND

VIN+

SEQ

OUT

10K

499K

MODULE

Figure 43. Circuit showing connection of the sequencing

signal to the SEQ pin.

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 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 refer to Application Note AN04-008 “Application

Guidelines for Non-Isolated Converters: Guidelines for

Sequencing of Multiple Modules”, or contact the Lineage Power

technical representative for additional information.

Tunable LoopTM

The 5V Pico TLynxTM 6A 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

Figures 36 and 37) 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. 44. This R-C allows the user to

externally adjust the voltage loop feedback compensation of the

module.

MODULE

VOUT

SENSE

TRIM

GND

RTUNE

CTUNE

RTrim

C O

Figure. 44. 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, 3, 4 and 5. Tables

2 and 4 shows the recommended values of RTUNE and CTUNE for

different values of ceramic output capacitors up to 940uF that

GE Data Sheet

PicoTLynxTM 6A: Non-Isolated DC-DC Power Modules

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 6A Output Current

reserved. Page 16

might be needed for an application to meet output ripple and

noise requirements. Selecting RTUNE and CTUNE according to

Tables 3 or 5 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. Tables 3 and 5 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 3A to 6A

step change (50% of full load), with an input voltage of 5V or

3.3V respectively

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 5V.

Table 2. General recommended values of of RTUNE and CTUNE for

Vin=5V and various external ceramic capacitor combinations.

Cext 1x47F 2x47F 4x47F 6x47F 10x47F 20x47F

RTUNE 47 47 47 33 33 33

CTUNE 4700pF 10nF 33nF 47nF 56nF 68nF

Table 3. Recommended values of RTUNE and CTUNE to obtain

transient deviation of 2% of Vout for a 3A step load with

Vin=5V.

Vo 3.3V 2.5V 1.8V 1.2V 0.6V

Co 3 x 47F 4 x 47F 5 x 47F

1 x 47F +

330uF

Polymer

6 x 47F +

330uF Polymer

RTUNE 100 56 47 33 33

CTUNE 15nF 18nF 27nF 47nF 39nF

V 58mV 45mV 34mV 24mV 12mV

Table 4. General recommended values of of RTUNE and CTUNE

for Vin=3.3V and various external ceramic capacitor

combinations.

Co 1x47F 2x47F 4x47F6x47F 10x47F20x47F

RTUNE 47 47 47 33 33 33

CTUNE 10nF 15nF 39nF 47nF 68nF 82nF

Table 5. Recommended values of RTUNE and CTUNE to obtain

transient deviation of 2% of Vout for a 3A step load with

Vin=3.3V.

Vo 2.5V 1.8V 1.2V 0.6V

Co 6 x 47F 6 x 47F

2 x 47F +

330uF

Polymer

2 x 330uF Polymer

RTUNE 33 33 33 33

CTUNE 47nF 47nF 68nF 220nF

V 46mV 33mV 24mV 12mV

GE Data Sheet

PicoTLynxTM 6A: Non-Isolated DC-DC Power Modules

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 6A Output Current

reserved. Page 17

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 45. The preferred airflow

direction for the module is in Figure 46.

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)

Figure 45. Thermal Test Setup.

The thermal reference points, Tref used in the specifications are

also shown in Figure 43. For reliable operation the temperatures

at these points should not exceed 125oC. 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 46. Preferred airflow direction and location of hot-spot

of the module (Tref).

GE Data Sheet

PicoTLynxTM 6A: Non-Isolated DC-DC Power Modules

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 6A Output Current

reserved. Page 18

Example Application Circuit

Requirements:

Vin: 3.3V

Vout: 1.8V

Iout: 4.5A max., worst case load transient is from 3A to 4.5A

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

Vin, ripple 1.5% of Vin (50mV, p-p)

MODULE

VOUT

SENSE

GND

TRIM

RTUNE

CTUNE

RTrim

VIN

CO1

CI2 CI1

Vin+ Vout+

ON/OFF

CIN1 2 x 22F/6.3V ceramic capacitor

CIN2 47F/6.3V bulk electrolytic

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

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

RTune 33 ohms SMT resistor (can be 1206, 0805 or 0603 size)

RTrim 1k SMT resistor (can be 1206, 0805 or 0603 size, recommended tolerance of 0.1%)

GE Data Sheet

PicoTLynxTM 6A: Non-Isolated DC-DC Power Modules

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 6A Output Current

reserved. Page 19

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.)

PIN FUNCTION

1 ON/OFF

2 VIN

3 GND

4 VOUT

5 SENSE

6 TRIM

7 GND

8 NC

9 SEQ

10 NC

PIN 7 PIN 8

PIN 10

GE Data Sheet

PicoTLynxTM 6A: Non-Isolated DC-DC Power Modules

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 6A Output Current

reserved. Page 20

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 ON/OFF

2 VIN

3 GND

4 VOUT

5 SENSE

6 TRIM

7 GND

8 NC

9 SEQ

10 NC

PIN 8 PIN 7

PIN 10

GE Data Sheet

PicoTLynxTM 6A: Non-Isolated DC-DC Power Modules

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 6A Output Current

reserved. Page 21

Packaging Details

The Pico TLynxTM 6A modules are supplied in tape & reel as standard. Modules are shipped in quantities of 400 modules per reel.

All Dimensions are in millimeters and (in inches).

Reel Dimensions:

Outside Dimensions: 330.2 mm (13.00)

Inside Dimensions: 177.8 mm (7.00”)

Tape Width: 24.00 mm (0.945”)

GE Data Sheet

PicoTLynxTM 6A: Non-Isolated DC-DC Power Modules

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 6A Output Current

reserved. Page 22

Surface Mount Information

Pick and Place

The Pico TLynxTM 6A 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 the location of manufacture.

Nozzle Recommendations

The module weight has been kept to a minimum by using open

frame construction. Variables such as nozzle size, tip style,

vacuum pressure and 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 7 mm.

Bottom Side / First 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 Soldering

The Pico TLynxTM 6A modules are lead-free (Pb-free) and RoHS

compliant and fully compatible in a Pb-free 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. D

(Moisture/Reflow Sensitivity Classification for Nonhermetic Solid

State Surface Mount Devices) for both Pb-free solder profiles and

MSL classification procedures. This standard provides a

recommended forced-air-convection reflow profile based on the

volume and thickness of the package (table 4-2). The suggested

Pb-free solder paste is Sn/Ag/Cu (SAC). A 6 mil thick stencil is

recommended. For questions regarding Land grid array(LGA)

soldering, solder volume; please contact Lineage Power for

special manufacturing process instructions.

The recommended linear reflow profile using Sn/Ag/Cu solder is

shown in Fig. 47. Soldering outside of the recommended profile

requires testing to verify results and performance.

MSL Rating

The Pico TLynxTM 6A modules have a MSL rating of 2a.

Storage and Handling

The recommended storage environment and handling procedures

for moisture-sensitive surface mount packages is detailed in J-

STD-033 Rev. A (Handling, Packing, Shipping and Use of

Moisture/Reflow Sensitive Surface Mount Devices).

Moisture barrier bags (MBB) with desiccant are required

for MSL ratings of 2 or greater. These sealed packages

should not be broken until time of use. Once the original

package is broken, the floor life of the product at

conditions of  30°C and 60% relative humidity varies

according to the MSL rating (see J-STD-033A). The shelf

life for dry packed SMT packages will be a minimum of 12

months from the bag seal date, when stored at the

following conditions: < 40° C, < 90% relative humidity.

Figure 47. Recommended linear reflow profile using

Sn/Ag/Cu solder.

Post Solder Cleaning and Drying Considerations

Post solder cleaning is usually the final circuit-board

assembly process prior to electrical board testing. The

result of inadequate cleaning and drying can affect both

the reliability of a power module and the testability of the

finished circuit-board assembly. For guidance on

appropriate soldering, cleaning and drying procedures,

refer to Board Mounted Power Modules: Soldering and

Cleaning Application Note (AN04-001).

Per J-STD-020 Rev. D

100

150

200

250

300

Reflow Time (Seconds)

Reflow Temp (°C)

Heating Zone

1°C/Second

Peak Temp 260°C

* Min . Time Above 235°C

15 Seconds

*Time Above 217°C

60 Seconds

Cooling

Zone

GE Data Sheet

PicoTLynxTM 6A: Non-Isolated DC-DC Power Modules

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 6A Output Current

For more information, call us at

USA/Canada:

+1 888 546 3243, or +1 972 244 9288

Asia-Pacific:

+86.021.54279977*808

Europe, Middle-East and Africa:

+49.89.878067-280

www.gecriticalpower.com

GE Critical Power reserves the right to make changes to the product(s) or information contained herein without notice, and no

liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s)

or information.

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

APXH006A0X-SRZ 2.4 – 5.5Vdc 0.6 – 3.63Vdc 6A Negative No CC109113354

APTH006A0X-SRZ 2.4 – 5.5Vdc 0.6 – 3.63Vdc 6A Negative Yes CC109113370

APTH006A0X4-SRZ 2.4 – 5.5Vdc 0.6 – 3.63Vdc 6A Positive Yes CC109113387

-Z refers to RoHS-compliant parts

Table 7. Coding Scheme

TLynx

family

Sequencing

feature.

Input voltage

range

Output

current

Output voltage

On/Off logic Options ROHS Compliance

AP T H 006A0 X 4 -SR Z

T = with Seq.

X = w/o Seq.

H = 2.4 – 5.5V 6.0A X = programmable

output

= positive

No entry =

negative

S = Surface Mount

R = Tape&Reel

Z = ROHS6