GE Industrial Solutions PicoTLynx 3A User Manual

GE

PicoTLynxTM 3A: Non-Isolated DC-DC Power Modules

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A 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 Loop

TM

response

 Flexible output voltage sequencing EZ-SEQUENCE

– APTH versions

 Remote sense

 Fixed switching frequency

 Output overcurrent protection (non-latching)

 Overtemperature protection

 Remote On/Off

 Ability to sink and source current

 Cost efficient open frame design

 Small size: 12.2 mm x 12.2 mm x 6.25 mm

(0.48 in x 0.48 in x 0.25 in)

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

 UL* 60950-1Recognized, CSA

03 Certified, and VDE
Licensed

 ISO** 9001 and ISO 14001 certified manufacturing

facilities

EZ-SEQUENCE

Applications

 Distributed power architectures

 Intermediate bus voltage applications

 Telecommunications equipment

 Servers and storage applications

 Networking equipment

 Industrial equipment

Vin+ Vout+

VIN

MODULE

Q1

SEQ

ON/OFF

GND

Cin

VOUT

SENSE

TRIM

RTUNE

CTUNE

RTrim

TM

Co

Data Sheet

to optimize dynamic output voltage

†

‡

0805:2001-12 (EN60950-1)

C22.2 No. 60950-1-

Description

The Pico TLynxTM 3A power modules are non-isolated dc-dc converters that can deliver up to 3A of output current. These
modules operate over a wide range of input voltage (V

= 2.4Vdc-5.5Vdc) and provide a precisely regulated output voltage

IN

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

TM

Loop

, 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 tradem ark 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 Internat ional Organization of Standards

September 11, 2013 ©2013 General Electric Company. All rights reserved.

GE

PicoTLynx

TM

3A: Non-Isolated DC-DC Power Modules

Data Sheet

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A 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 V

Continuous

Sequencing Voltage APTH V

Operating Ambient Temperature All T

(see Thermal Considerations section)

Storage Temperature All T

IN

SEQ

A

stg

-0.3 6 Vdc

-0.3 V

-40 85 °C

-55 125 °C

iN, Max

Vdc

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

Maximum Input Current All I

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

Input No Load Current V

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

Input Stand-by Current All I

(VIN = 5.0Vdc, module disabled)

Inrush Transient All I2t 1 A2s

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

5.5V

= I

; See Test Configurations)

, IO

Omax

Input Ripple Rejection (120Hz) All 40 dB

)

O, max

= 0.6 Vdc I

O,set

= 3.3Vdc I

O,set

=0 to

IN

All 25 mAp-p

IN,max

IN,No load

IN,No load

IN,stand-by

3.5 Adc

26 mA

75 mA

2.1 mA

⎯

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 5A (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.

5.5 Vdc

September 11, 2013 ©2013 General Electric Company. All rights reserved. Page 2

p

GE

PicoTLynx

TM

3A: Non-Isolated DC-DC Power Modules

Data Sheet

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A Output Current

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)

Output Voltage All V

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

Adjustment Range All V

Selected by an external resistor

All V

O, set

O, set

O

Output Regulation (for VO ≥ 2.5Vdc)

Line (VIN=V

Load (IO=I

IN, min

O, min

to V

) All

IN, max

to I

) All

O, max

Output Regulation (for VO < 2.5Vdc)

Line (VIN=V

Load (IO=I

Temperature (T

IN, min

O, min

to V

) All

IN, max

to I

) All

O, max

to T

ref=TA, min

) All

A, max

Remote Sense Range All 0.5 V

Output Ripple and Noise on nominal output

(VIN=V
ceramic ca

IN, nom

and IO=I

acitors)

O, min

to I

Co = 0.1μF // 10 μF

O, max

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

RMS 15 25 mV

External Capacitance1

Without the Tunable LoopTM

ESR ≥ 1 mΩ All C

O, max

With the Tunable LoopTM
ESR ≥ 0.15 mΩ All C

ESR ≥ 10 mΩ All C

Output Current All I

Output Current Limit Inception (Hiccup Mode ) All I

Output Short-Circuit Current All I

(VO≤250mV) ( Hiccup Mode )

Efficiency V

VIN= 3.3Vdc, TA=25°C V
IO=I

O, max , VO

= V

V

O,set

V
VIN= 5Vdc V

= 0.6Vdc η 81.2 %

O,set

= 1.2Vdc η 89.4 %

O, set

= 1.8Vdc η 91.4 %

O,set

= 2.5Vdc η 93.9 %

O,set

= 3.3Vdc η 94.4 %

O,set

Switching Frequency All f

O, max

O, max

o

O, lim

O, s/c

sw

Dynamic Load Response

(dIo/dt=10A/μs; VIN = 5V; V

= 1.5V, TA=25°C)

out

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

Peak Deviation All V

Settling Time (Vo<10% peak deviation)

All t

pk

s

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

Peak Deviation All V

Settling Time (Vo<10% peak deviation)

All t

pk

s

-1.5 +1.5 % V

-3.0

⎯

+3.0 % V

0.6 3.63 Vdc

O, set

O, set

⎯

⎯

⎯

⎯

⎯

⎯

+0.4 % V

10 mV

10 mV

5 mV

0.4 % V

20 35 mV

O, set

O, set

pk-pk

rms

0

0

0

⎯

⎯

⎯

47 μF

1000 μF

3000 μF

0 3 Adc

200 % I

o,max

0.12 Adc

⎯

600

⎯

kHz

90 mV

20

μs

100 mV

20

μs

1

External capacitors may require using the new Tunable Loop

best transient response. See the Tunable Loop

TM

section for details.

TM

feature to ensure that the module is stable as well as getting the

September 11, 2013 ©2013 General Electric Company. All rights reserved. Page 3

GE

PicoTLynx

TM

3A: Non-Isolated DC-DC Power Modules

Data Sheet

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A Output Current

General Specifications

Parameter Min Typ Max Unit

Calculated MTBF (IO=0.8I
3

Weight

, TA=40°C) Telcordia Issue 2 Method 1 Case

O, max

16,139,760 Hours

⎯

1.55 (0.0546)

⎯

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 Units

On/Off Signal Interface

(VIN=V

Signal referenced to GND)

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

Logic High (Module ON)

Input High Current All IIH

Input High Voltage All VIH

Logic Low (Module OFF)

Input Low Current All IIL

Input Low Voltage All VIL

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 VIN – 1.6 — V

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

applied (delay from instant at which V
10% of 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

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

Output voltage overshoot (TA = 25oC 3.0 % V
VIN= V
With or without maximum external capacitance

Over Temperature Protection All T

(See Thermal Considerations section)

Sequencing Delay time

Delay from V
pin

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

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

(V

IN, min

IN, min

IN, nom

IN, min

to V

to V

, IO=I

o, set)

to V

IN, max

; open collector or equivalent,

IN, max

to within ±1% of steady state)

O, max , VO

o = 10% of Vo, set)

= I

IN, max,IO

to application of voltage on SEQ

IN, min

; I

O, min

to I

O, min

O, max

to I

VSEQ < Vo)

O, max

1.2

⎯

⎯

10 µA

V

V

IN,max

⎯ ⎯

-0.3

⎯

0.3 mA

0.3 V

Vdc

IN, max

= V

until Vo =

IN

IN, min

All Tdelay — 2 — msec

All Tdelay — 2 — msec

All Trise

— 5 — msec

O, set

)

140 °C

APTH Ts

ref

EQ-delay 10 msec

September 11, 2013 ©2013 General Electric Company. All rights reserved. Page 4

GE

PicoTLynx

TM

3A: Non-Isolated DC-DC Power Modules

Data Sheet

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A Output Current

Feature Specifications (cont.)

Parameter Device Symbol Min Typ Max Units

Input Undervoltage Lockout

Turn-on Threshold All

Turn-off Threshold All

Hysteresis All

2.2 Vdc

1.75 Vdc

0.08 0.2 Vdc

September 11, 2013 ©2013 General Electric Company. All rights reserved. Page 5

GE

PicoTLynx

TM

3A: Non-Isolated DC-DC Power Modules

Data Sheet

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A Output Current

Characteristic Curves

The following figures provide typical characteristics for the Pico TLynxTM 3A modules at 0.6Vo and at 25oC.

86

84

82

80

78

76

74

EFFICIENCY, η (%)

72

70

00.511.522.53

Vin=2.4V

Vin=3.3V

Vin=5.5V

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

Figure 1. Converter Efficiency versus Output Current.

OUTPUT CURRENT, Io (A)

Figure 2. Derating Output Current versus Ambient
Temperature and Airflow.

3.5

3

2.5

2

1. 5

1

0.5

0

20 30 40 50 60 70 80 90

0 LFM

(V) (20mV/div)

O

V

OUTPUT VOLTAGE

TIME, t (1μs/div) TIME, t (20μs /div)

Figure 3. Typical output ripple and noise (V

(V) (200mV/div)

O

(V) (2V/div) V

ON/OFF

ON/OFF VOLTAGE OUTPUT VOLTAGE

V

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

IN = 5V, Io = Io,max).

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

(V) (100mV/div)

O

(A) (1Adiv) V

O

I

OUTPUT CURRENT, OUTPUT VOLTAGE

Figure 4. Transient Response to Dynamic Load Change
from 0% to 50% to 0% with V

(V) (200mV/div)

O

(V) (2V/div) V

IN

INPUT VOLTAGE OUTPUT VOLTAGE

V

IN

=5V.

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

o,max).

= I

IN = 5V, Io

September 11, 2013 ©2013 General Electric Company. All rights reserved. Page 6

OUTPUT

CURRENT

OUTPUT

VOLTAGE

GE

PicoTLynx

TM

3A: Non-Isolated DC-DC Power Modules

Data Sheet

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A Output Current

Characteristic Curves (continued)

The following figures provide typical characteristics for the Pico TLynxTM 3A modules at 1.2Vo and at 25oC.

95

90

85

80

75

EFFICIENCY, η (%)

70

0 0 .5 1 1.5 2 2.5 3

Vin=3.3V

Vin=2.4V

Vin=5.5V

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.

3.5

3

2.5

2

1. 5

1

0.5

OUTPUT CURRENT, Io (A)

0

20 30 40 50 60 70 80 90

0 LFM

(V) (20mV/div)

O

V

OUTPUT VOLTAGE

TIME, t (1μs/div) TIME, t (20μs /div)

Figure 9. Typical output ripple and noise (V

(V) (500mV/div)

O

(V) (2V/div) V

ON/OFF

ON/OFF VOLTAGE OUTPUT VOLTAGE

V

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

IN = 5V, Io = Io,max).

(V) (100mV/div)

O

,

(A) (1Adiv) V

O

I

Figure 10. Transient Response to Dynamic Load Change
from 0% to 50% to 0% with V

(V) (500mV/div)

O

(V) (2V/div) V

IN

INPUT VOLTAGE OUTPUT VOLTAGE

V

IN

=5V.

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

Figure 12. Typical Start-up Using Input Voltage (V

o = Io,max).

I

IN = 5V,

September 11, 2013 ©2013 General Electric Company. All rights reserved. Page 7

OUT

PUT

CURRENT

OUTPUT

VOLTAGE

GE

PicoTLynx

TM

3A: Non-Isolated DC-DC Power Modules

Data Sheet

2.4Vdc –5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A Output Current

Characteristic Curves (continued)

The following figures provide typical characteristics for the Pico TLynxTM 3A modules at 1.8Vo and at 25oC.

95

90

85

80

75

EFFICIENCY, η (%)

70

0 0.5 1 1.5 2 2.5 3

Vin=2.4V

Vin=3.3V

Vin=5.5V

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.

3.5

3

2.5

2

1. 5

1

0.5

OUTPUT CURRENT, Io (A)

0

20 30 40 50 60 70 80 90

0 LFM

(V) (20mV/div)

O

V

OUTPUT VOLTAGE

TIME, t (1μs/div) TIME, t (20μs /div)

Figure 15. Typical output ripple and noise (V

(V) (500mV/div)

O

(V) (2V/div) V

ON/OFF

ON/OFF VOLTAGE OUTPUT VOLTAGE

V

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

IN = 5V, Io = Io,max).

(V) (200mV/div)

O

,

(A) (1Adiv) V

O

I

Figure 16. Transient Response to Dynamic Load Change
from 0% to 50% to 0% with V

(V) (1V/div)

O

(V) (2V/div) V

IN

INPUT VOLTAGE OUTPUT VOLTAGE

V

IN

=5V.

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

Figure 18. Typical Start-up Using Input Voltage (V

o = Io,max).

I

IN = 5V,

September 11, 2013 ©2013 General Electric Company. All rights reserved. Page 8