GE Industrial Solutions 12V MicroTLynx 12A User Manual

GE

Data Sheet

12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Module

4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current

Features

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

RoHS Compliant

Applications

EZ-SEQUENCETM

 Distributed power architectures

 Intermediate bus voltage applications

 Telecommunications equipment

 Servers and storage applications

 Networking equipment

 Industrial equipment

Vin+ Vout+

VIN

PGOOD

MODULE

Q1

SEQ

ON/OFF

Cin

GND

VOUT

SENSE

TRIM

RTUNE

CTUNE

RTrim

Co

Description

The 12V Micro TLynxTM series of power modules are non-isolated dc-dc converters that can deliver up to 12A of output current.
These modules operate over a wide range of input voltage (V
from 0.69Vdc to 5.5Vdc, programmable via an external resistor. The new Ruggedized version (-D) is capable of operation up to
105°C and can withstand high levels of shock and vibration. Features include frequency synchronization, remote On/Off,
adjustable output voltage, over current and overtemperature protection, power good and output voltage sequencing. A new
feature, the Tunable Loop

TM

, 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

= 4.5Vdc-14Vdc) and provide a precisely regulated output voltage

IN

versions)

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

versions)

 DOSA Based

 Wide Input voltage range (4.5Vdc-14Vdc)

 Output voltage programmable from 0.69Vdc to 5.5

Vdc via external resistor

 Tunable Loop

TM

to optimize dynamic output voltage

response

 Flexible output voltage sequencing EZ-SEQUENCE

(APTS versions)

 Fixed switching frequency and ability to synchronize

with external clock

 Output overcurrent protection (non-latching)

 Overtemperature protection

 Remote On/Off

 Remote Sense

 Power Good signal

 Fixed switching frequency

 Ability to sink and source current

 Small size: 20.3 mm x 11.4 mm x 8.5 mm (0.8 in x 0.45

in x 0.334 in)

 Wide operating temperature range [-40°C to

105°C(Ruggedized: -D), 85°C(Regular)]

 Ruggedized (-D) version able to withstand high levels of

shock and vibration

 UL* 60950-1Recognized, CSA

Certified, and VDE

‡

0805:2001-12 (EN60950-1)

†

C22.2 No. 60950-1-03

Licensed

 ISO** 9001 and ISO 14001 certified manufacturing

facilities

May 2, 2013 ©2013 General Electric Company. All rights reserved.

GE

Data Sheet

12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules

4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A 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

Voltage on SEQ terminal All V

Voltage on SYNC terminal All V

Voltage on PG terminal All V

Operating Ambient Temperature All T

(see Thermal Considerations section) -D version T

Storage Temperature All T

IN

SEQ

SYNC

PG

A

A

stg

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 4.5

Maximum Input Current All I

(VIN=4.5V to 14V, IO=I

)

O, max

Input No Load Current

(VIN = 10.0Vdc, IO = 0, module enabled) V

(VIN = 12.0Vdc, IO = 0, module enabled) V

= 0.69 Vdc I

O,set

= 3.3Vdc I

O,set

Input Stand-by Current All I

(VIN = 12.0Vdc, module disabled)

Inrush Transient All I2t 1 A2s

IN,max

IN,No load

60 mA

IN,No load

1.2 mA

IN,stand-by

-0.3 15 Vdc

-0.3 V

IN

Vdc

-0.3 12 Vdc

-0.3 6 Vdc

-40 85 °C

-40 105 °C

-55 125 °C

⎯

14.0 Vdc

11.5 Adc

26 mA

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

; See Test Configurations)

I

Omax

=0 to 14V, IO=

IN

All 70 mAp-p

Input Ripple Rejection (120Hz) All 45 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 15A (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.

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

GE

Data Sheet

12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules

4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current

Electrical Specifications (continued)

Parameter Device Symbol Min Typ Max Unit

Output Voltage Set-point All V

Output Voltage All V

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

O, set

O, set

Adjustment Range (elected by an external resistor)
(Some output voltages may not be possible depending on the

All V

O

input voltage – see Feature Descriptions Section)

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 Vdc

Output Ripple and Noise on nominal output

(VIN=V
capacitors)

IN, nom

and IO=I

O, min

to I

Co = 0.1μF // 10 μF ceramic

O, max

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

RMS (5Hz to 20MHz bandwidth) All

External Capacitance1

Without the Tunable Loop

TM

ESR ≥ 1 mΩ All C

With the Tunable Loop

TM

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 )

O, max

O, max

O, max

o

O, lim

O, s/c

Efficiency

VIN= 10Vdc, TA=25°C V

VIN= 12Vdc, TA=25°C V

IO=I

O, max , VO

= V

V

O,set

V

V

V

= 0.69Vdc η 76.0 %

O, set

= 1.2Vdc η 83.0 %

O, set

= 1.8Vdc η 87.6 %

O,set

= 2.5Vdc η 90.2 %

O,set

= 3.3Vdc η 92.2 %

O,set

= 5.0Vdc η 94.3 %

O,set

TM

External capacitors may require using the new Tunable Loop
transient response. See the Tunable Loop

TM

section for details.

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

-1.5 +1.5 % V

-2.5

⎯

+2.5 % V

0.69 5.5 Vdc

+0.4 % V

10 mV

10 mV

5 mV

0.5 % V

⎯

⎯

⎯

⎯

⎯

⎯

⎯

65 80 mV

23 28 mV

O, set

O, set

O, set

O, set

pk-pk

rms

0

0

0

⎯

⎯

⎯

100 μF

1000 μF

5000 μF

0 12 Adc

150 % I

o,max

2 Adc

May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 3

GE

Data Sheet

12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules

4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current

Electrical Specifications (continued)

Parameter Device Symbol Min Typ Max Unit

Switching Frequency All f

sw

⎯

Frequency Synchronization

Synchronization Frequency Range 520 600 kHz

High-Level Input Voltage All V

Low-Level Input Voltage All V

Input Current, SYNC V

=2.5V I

SYNC

Minimum Pulse Width, SYNC All t

Minimum Setup/Hold Time, SYNC2 All t

IH

IL

SYNC

SYNC

SYNC_SH

2.5 V

0.8 V

1 mA

250 ns

250 ns

Dynamic Load Response

(dIo/dt=1A/μs; VIN = V

IN, nom

; TA=25°C)

Load Change from Io= 50% to 100% of Io,max; 1μF
ceramic// 10 μF ceramic

Peak Deviation All V

Settling Time (Vo<10% peak deviation)

(dIo/dt=1A/μs; VIN = V

IN, nom

; TA=25°C)

Load Change from Io= 100% to 50%of Io,max: 1μF
ceramic// 10 μF ceramic

All t

Peak Deviation All V

Settling Time (Vo<10% peak deviation) All t

pk

s

pk

s

⎯

⎯

⎯

⎯

2

To meet set up time requirements for the synchronization circuit, the logic low width of the pulse must be greater than 100 ns wide.

General Specifications

500

⎯

360 mV

50

⎯

400 mV

50

⎯

kHz

μs

μs

Parameter Min Typ Max Unit

Calculated MTBF (IO=0.8I

Weight

, TA=40°C) Telcordia Issue 2 Method 1 Case 3 16,250,892 Hours

O, max

⎯

3.68 (0.130)

⎯

g (oz.)

May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 4

GE

Data Sheet

12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules

4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current

Feature Specifications

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

Parameter Device Symbol Min Typ Max Unit

On/Off Signal Interface

(VIN=V

Signal referenced to GND)

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 2.0 — V

Logic Low (Module ON)

Input low Current All IIL — — 10 μA

Input Low Voltage All VIL 0 — 1 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

Tracking Accuracy (Power-Up: 0.5V/ms) All VSEQ –Vo 100 mV

(Power-Down: 0.5V/ms) All VSEQ –Vo 150 mV

(V

IN, min

Input Undervoltage Lockout

IN, min

to V

; open collector or equivalent,

IN, max

—

V

IN

– 1

⎯

⎯

25 µA

V

IN,max

⎯ ⎯

⎯ ⎯

3 mA

3.5 V

V

Vdc

IN, max

IN, nom

, IO=I

o, set)

to within ±1% of steady state)

O, max , VO

= V

until Vo =

IN

IN, min

All Tdelay — 2 — msec

All Tdelay — 2 — msec

o = 10% of Vo, set)

IN, min

to V

IN, max,IO

All Trise

= I

to I

O, min

)

O, max

ref

— 5 — msec

133 °C

O, set

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

IN, min

to V

; I

to I

IN, max

O, min

Turn-on Threshold All

Turn-off Threshold All

Hysteresis All

VSEQ < Vo)

O, max

4.45 Vdc

4.2 Vdc

0.25 Vdc

May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 5

GE

Data Sheet

12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules

4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current

Feature Specifications (continued)

Parameter Device Symbol Min Typ Max Units

PGOOD (Power Good)

Signal Interface Open Drain, V

Overvoltage threshold for PGOOD

Undervoltage threshold for PGOOD

Pulldown resistance of PGOOD pin All

supply

≤ 6VDC

110.8 %V

89.1 %V

7 50

O, set

O, set

Ω

May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 6

GE

Data Sheet

12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules

4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current

Characteristic Curves

The following figures provide typical characteristics for the 12V Micro TLynxTM at 0.69Vo and at 25oC.

90

12

85

Vin=4.5V

80

Vin=5V

75

EFFICIENCY, η (%)

Vin=10V

70

024681012

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

Figure 1. Converter Efficiency versus Output Current.

10

8

6

OUTPUT CURRENT, Io (A)

4

55 65 75 85 95 105

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

NC

0.5m/s

(100LFM)

Standard Part

(85

C)

°

Ruggedized (D)

Part (105

°

C)

1m/s

(200LF M)

1.5m/s

(300LFM)

(400LFM)

2m/s

(V) (20mV/div)

O

V

OUTPUT VOLTAGE

TIME, t (1μs/div) TIME, t (100μs /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 (1 ms/div) TIME, t (1 ms/div)

IN = 12V, Io = Io,max).

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

(V) (200mV/div)

O

(A) (5Adiv) V

O

I

OUTPUT CURRENT, OUTPUT VOLTAGE

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

(V) (200mV/div)

O

(V) (5V/div) V

IN

INPUT VOLTAGE OUTPUT VOLTAGE

V

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

o,max).

I

IN = 10V, Io =

May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 7

GE

Data Sheet

12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules

4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current

Characteristic Curves (continued)

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

95

90

85

80

75

EFFICIENCY, η (%)

70

024681012

Vin=4.5V

Vin=12V

Vin=14V

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

Figure 7. Converter Efficiency versus Output Current.

14

12

10

8

6

OUTPUT CURRENT, Io (A)

4

55 65 75 85 95 105

NC

0.5m/s

(100LFM)

Standard Part

C)

(85

°

Rugg ediz ed (D)

Part (105

°

C)

1m/s

(200LFM)

Figure 8. Derating Output Current versus Ambient
Temperature and Airflow.

1.5m/s

(300LFM)

2m/s

(400LFM)

(V) (20mV/div)

O

V

OUTPUT VOLTAGE

TIME, t (1μs/div) TIME, t (100μs /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 (1 ms/div) TIME, t (1 ms/div)

IN = 12V, Io = Io,max).

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

(V) (200mV/div)

O

(A) (5Adiv) V

O

I

OUTPUT CURRENT, OUTPUT VOLTAGE

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

(V) (500mV/div)

O

(V) (5V/div) V

IN

INPUT VOLTAGE OUTPUT VOLTAGE

V

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

o,max).

= I

IN = 12V, Io

May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 8

GE

Data Sheet

12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules

4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current

Characteristic Curves (continued)

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

100

95

90

85

80

EFFICIENCY, η (%)

75

70

024681012

Vin=4.5V

Vin=12V

Vin=14V

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

Figure 13. Converter Efficiency versus Output Current.

14

12

10

8

6

OUTPUT CURRENT, Io (A)

4

55 65 75 85 95 105

NC

0.5m/s

(100LFM)

Standard Part

C)

(85

°

Ruggedized (D)

Part (105

°

C)

1m/s

(200LFM)

Figure 14. Derating Output Current versus Ambient
Temperature and Airflow.

1.5m/s

(300LFM)

2m/s

(400LFM)

(V) (20mV/div)

O

V

OUTPUT VOLTAGE

TIME, t (1μs/div) TIME, t (100μs /div)

Figure 15. Typical output ripple and noise (V

o,max).

I

(V) (500mV/div)

O

(V) (2V/div) V

ON/OFF

ON/OFF VOLTAGE OUTPUT VOLTAGE

V

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

IN = 12V, Io =

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

(V) (200mV/div)

O

(A) (5Adiv) V

O

I

OUTPUT CURRENT, OUTPUT VOLTAGE

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

(V) (500mV/div)

O

(V) (5V/div) V

IN

INPUT VOLTAGE OUTPUT VOLTAGE

V

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

o,max).

I

IN = 12V, Io =

May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 9

OUTPUT

CURRENT

OUTPUT

VOLTAGE

GE

Data Sheet

12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules

4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current

Characteristic Curves (continued)

The following figures provide typical characteristics for the 12V Micro TLynxTM at 2.5Vo and at 25oC.

100

95

90

85

80

75

EFFICIENCY, η (%)

70

024681012

Vin=4.5V

Vin=12V

Vin=14V

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

Figure 19. Converter Efficiency versus Output Current.

13

11

9

7

5

OUTPUT CURRENT, Io (A)

3

NC

0.5m/s

(100LFM)

Standard Part

(85

Rugg ediz ed (D)

Part (105

55 65 75 85 95 105

1m/s

(200LFM)

C)

°

°

C)

1.5m/s

(300LFM)

Figure 20. Derating Output Current versus Ambient
Temperature and Airflow.

2m/s

(400LFM)

(V) (20mV/div)

O

V

OUTPUT VOLTAGE

TIME, t (1μs/div) TIME, t (100μs /div)

Figure 21. Typical output ripple and noise (V

o,max).

I

(V) (1V/div)

O

(V) (1V/div) V

ON/OFF

ON/OFF VOLTAGE OUTPUT VOLTAGE

V

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

IN = 12V, Io =

(V) (200mV/div)

O

,

(A) (5Adiv) V

O

I

Figure 22. Transient Response to Dynamic Load Change from
0% to 50% to 0%.

(V) (1V/div)

O

(V) (5V/div) V

IN

INPUT VOLTAGE OUTPUT VOLTAGE

V

Figure 23. Typical Start-up Using On/Off Voltage (Io = Io,max).

Figure 24. Typical Start-up Using Input Voltage (V

o,max).

I

IN = 12V, Io =

May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 10

GE

Data Sheet

12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules

4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current

Characteristic Curves (continued)

The following figures provide typical characteristics for the 12V Micro TLynxTM at 3.3Vo and at 25oC.

100

95

90

85

80

75

EFFICIENCY, η (%)

70

024681012

Vin=5V

Vin=12V

Vin=14V

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

Figure 25. Converter Efficiency versus Output Current.

13

11

NC

0.5m/s

9

7

5

OUTPUT CURRENT, Io (A)

3

55 65 75 85 95 105

(100LFM)

Standard Part

C)

(85

°

Ruggedized (D)

°

C)

Part (105

1m/s

(200LFM)

Figure 26. Derating Output Current versus Ambient
Temperature and Airflow.

1.5m/s

(300LFM)

2m/s

(400LFM)

(V) (20mV/div)

O

V

OUTPUT VOLTAGE

TIME, t (1μs/div) TIME, t (100μs /div)

Figure 27. Typical output ripple and noise (V

o,max).

I

(V) (1V/div)

O

(V) (2V/div) V

ON/OFF

ON/OFF VOLTAGE OUTPUT VOLTAGE

V

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

IN = 12V, Io =

Figure 29. Typical Start-up Using On/Off Voltage (Io = Io,max).

(V) (200mV/div)

O

(A) (5Adiv) V

O

I

OUTPUT CURRENT, OUTPUT VOLTAGE

Figure 28. Transient Response to Dynamic Load Change from
0% 50% to 0%.

(V) (1V/div)

O

(V) (5V/div) V

IN

INPUT VOLTAGE OUTPUT VOLTAGE

V

Figure 30. Typical Start-up Using Input Voltage (V

o,max).

I

IN = 12V, Io =

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

GE

Data Sheet

12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules

4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current

Characteristic Curves (continued)

The following figures provide typical characteristics for the 12V Micro TLynxTM at 5Vo and at 25oC.

100

95

90

85

Vin=7V

Vin=12V

Vin=14V

EFFICIENCY, η (%)

80

024681012

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

Figure 31. Converter Efficiency versus Output Current.

Figure 34. Derating Output Current versus Ambient
Temperature and Airflow.

13

NC

11

9

7

5

OUTPUT CURRENT, Io (A)

3

45 55 65 75 85 95 105

0.5m/s

(100LFM)

(200LFM)

Standard Part

C)

(85

°

Rugged ized ( D)

Part (105

°

C)

1m/s

(300LFM)

1.5m/s

2m/s

(400LFM)

(V) (20mV/div)

O

V

OUTPUT VOLTAGE

TIME, t (1μs/div) TIME, t (100μs /div)

Figure 32. Typical output ripple and noise (V

o,max).

I

(V) (2V/div)

O

(V) (2V/div) V

ON/OFF

ON/OFF VOLTAGE OUTPUT VOLTAGE

V

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

IN = 12V, Io =

Figure 33. Typical Start-up Using On/Off Voltage (Io = Io,max).

(V) (200mV/div)

O

(A) (5Adiv) V

O

I

OUTPUT CURRENT, OUTPUT VOLTAGE

Figure 35. Transient Response to Dynamic Load Change from
0% 50% to 0%.

(V) (2V/div)

O

(V) (5V/div) V

IN

INPUT VOLTAGE OUTPUT VOLTAGE

V

Figure 36. Typical Start-up Using Input Voltage (V

o,max).

I

IN = 12V, Io =

May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 12

GE

Data Sheet

12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules

4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current

Test Configurations

TO OSCILLOSCOPE

L

TEST

1μH

CS 1000μF

BATTERY

NOTE: Measure input reflected ripple current with a simulated

source inductance (L
possible battery im pedance. Measure curre nt as shown
above.

Electrolytic

E.S.R.<0.1Ω

@ 20°C 100k Hz

TEST

) of 1μH. Capa citor CS offsets

Figure 37. Input Reflected Ripple Current Test Setup.

COPPER STRIP

Vo+

0.1uF

COM

NOTE : All volt age measurem ents to be t ake n at the modu le

termin als, as shown ab ove. If soc kets are use d then
Kelvin connections are required at the module terminals
to av oid me asur ement er rors due to soc ket contact
resistance.

10uF

GROUND PLANE

Figure 38. Output Ripple and Noise Test Setup.

R

R

contact

distribution

R

R

contact

distribution

NOTE: All volt age meas uremen ts to be t aken at t he modul e

terminals , as shown above. If sock ets are us ed then
Kelvin conn ections are requir ed at the m odule termi nals
to avoid measur ement err ors due to soc ket contact
resistance.

VIN(+)

V

IN

COM

Figure 39. Output Voltage and Efficiency Test Setup.

. I

V

O

Efficiency

=

η

VIN. I

O

IN

V

COM

2x100μF

Tantalum

O

CURRENT PROBE

CIN

SCO PE U SIN G
BNC SOC K ET

R

V

O

R

x 100 %

VIN(+)

COM

RESISTIVE

LOAD

contact Rdistribution

R

contact Rdistribution

LOAD

Design Considerations

Input Filtering

The 12V Micro 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 40 shows
the input ripple voltage for various output voltages at 12A of
load current with 1x22 µF or 2x22 µF ceramic capacitors
and an input of 12V.

300

250

200

150

100

50

0

Input Ripple Voltage (mVp-p)

0.51 1.52 2.53 3.54 4.55

Output Voltage (Vdc)

Figure 40. Input ripple voltage for various output voltages
with 1x22 µF or 2x22 µF ceramic capacitors at the input (12A
load). Input voltage is 12V.

Output Filtering

The 12V Micro 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 41 provides output ripple information for
different external capacitance values at various Vo and for full
load currents of 12A. 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

1x22uF

2x22uF

TM

feature described later in this data sheet.

May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 13

GE

Data Sheet

12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules

4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current

70

60

50

40

30

Ripple(mVp-p)

20

10

0

0.5 1.5 2.5 3.5 4.5 5.5

Figure 41. Output ripple voltage for various output voltages
with external 1x10 µF, 1x47 µF, 2x47 µF or 4x47 µF ceramic
capacitors at the output (12A load). Input voltage is 12V.

1x10uF External Cap
1x47uF External Cap
2x47uF External cap
4x47uF External Cap

Outpu t Vo ltage(Volts)

Safety Considerations

For safety agency approval the power module must be
installed in compliance with the spacing and separation
requirements of the end-use safety agency standards, i.e., UL
60950-1, CSA C22.2 No. 60950-1-03, and VDE 0850:2001-12
(EN60950-1) Licensed.

For the converter output to be considered meeting the
requirements of safety extra-low voltage (SELV), the input must
meet SELV requirements. The power module has extra-low
voltage (ELV) outputs when all inputs are ELV.

The input to these units is to be provided with a fast-acting
fuse with a maximum rating of 15A in the positive input lead

.

May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 14

K

_

K

K

K

_

GE

Data Sheet

12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules

4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current

Feature Descriptions

Remote Enable

The 12V Micro TLynxTM 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 42. When the external transistor
Q1 is in the OFF state, the internal PWM Enable signal is pulled
high through an internal 24.9kΩ resistor and the external pullup
resistor and the module is ON. When transistor Q1 is turned ON,
the On/Off pin is pulled low and the module is OFF. A suggested

Rpullup

I

ON/OFF

ON/OFF

V

Q1

GND

pullup

+

ON/OFF

is 20kΩ.

MODULE

23K

22K

25.5K

Q2

22K

22K

PWM Enable

Q3

11.8K

value for R

VIN+

Figure 42. Circuit configuration for using positive On/Off
logic.

For negative logic On/Off modules, the circuit configuration is
shown in Fig. 43. The On/Off pin should be pulled high with an
external pull-up resistor (suggested value for the 4.5V to 14V
input range is 20Kohms). When transistor Q1 is in the OFF state,
the On/Off pin is pulled high, internal transistor Q2 is turned ON
and the module is OFF. To turn the module ON, Q1 is turned ON
pulling the On/Off pin low, turning transistor Q2 OFF resulting in
the PWM Enable pin going high and the module turning ON.

Overcurrent Protection

To provide protection in a fault (output overload) condition, the
unit is equipped with internal current-limiting circuitry and can
endure current limiting continuously. At the point of current-limit
inception, the unit enters hiccup mode. The unit operates
normally once the output current is brought back into its
specified range.

VIN+

ON/OFF

GND

Rpullup1

I

ON/OFF

+

V

ON/OFF

Q1

MODULE

23

22

Figure 43. Circuit configuration for using negative On/Off
logic.

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 133
reference point T

The thermal shutdown is not intended as a

ref.

o

C is exceeded at the thermal

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 12V Micro TLynxTM module can be
programmed to any voltage from 0.69dc to 5.5Vdc 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. 44.
The Upper Limit curve shows that for output voltages of 0.9V
and lower, the input voltage must be lower than the maximum
of 14V. The Lower Limit curve shows that for output voltages of

3.3V and higher, the input voltage needs to be larger than the
minimum of 4.5V.

Without an external resistor between Trim and GND pins, the
output of the module will be 0.69Vdc. To calculate the value of
the trim resistor, Rtrim for a desired output voltage, use the
following equation:

Rtrim






= k

Rtrim is the external resistor in kΩ, and Vo is the desired output
voltage.

9.6

()

−

Vo

Q2

69.0

25.5

PWM Enable

11.8



Ω




May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 15

GE

Data Sheet

12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules

4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current

16

14

12

10

8

6

4

Input Voltage (v)

2

0

0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6

Upper Limit

Lower Limit

Output Voltage (V)

Figure 44. Output Voltage vs. Input Voltage Set Point Area
plot showing limits where the output voltage can be set for
different input voltages.

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

Table 1

V

(V) Rtrim (KΩ)

O, set

0.7 690

1.0 22.26

1.2 13.53

1.5 8.519

1.8 6.216

2.5 3.812

3.3 2.644

5.0 1.601

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.

Remote Sense

The 12V Micro TLynxTM power modules have a Remote Sense
feature to minimize the effects of distribution losses by
regulating the voltage between the VS+ and VS– pins. The
voltage between the VS– and GND pins of the module must not
drop below –0.2V. If Remote Sense is being used, the voltage
between VS+ and VS– cannot be more than 0.5V larger than
the voltage between VOUT and GND. Note that the output
voltage of the module cannot exceed the specified maximum
value. When the Remote Sense feature is not being used,
connect the VS+ pin to the VOUT pin and the VS– pin to the
GND pin.

Monotonic Start-up and Shutdown

The 12V Micro TLynx
shutdown behavior for any combination of rated input voltage,
output current and operating temperature range.

TM

modules have monotonic start-up and

VIN(+)

ON/OFF

Figure 45. Circuit configuration for programming output
voltage using an external resistor.

Startup into Pre-biased Output

The 12V Micro TLynxTM 12A 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.

Voltage Margining

Output voltage margining can be implemented in the 12V
Micro TLynx
the Trim pin to the ground pin for margining-up the output
voltage and by connecting a resistor, R
pin to output pin for margining-down. Figure 46 shows the
circuit configuration for output voltage margining. The Lynx
Programming Tool, available at www.lineagepower.com under
the Design Tools section, also calculates the values of R
and R
Please consult your local GE technical representative for
additional details.

TM

margin-down

Output Voltage Sequencing

The 12V Micro TLynxTM 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 V
leave it unconnected.

When an analog voltage is applied to the SEQ pin, the output
voltage tracks this voltage until the output reaches the set­point 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 multiple modules together, multiple
modules can track their output voltages to the voltage applied
on the SEQ pin.

VO(+)

VS+

TRIM

GND

modules by connecting a resistor, R

for a specific output voltage and % margin

R

tri m

margin-down

LOA D

, from

margin-up

, from the Trim

margin-up

IN or

May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 16

GE

Data Sheet

12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules

4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current

Vo

Rmargin-down

MODULE

Q2

Trim

Rmargin-up

Rtrim

Q1

GND

Figure 46. Circuit Configuration for margining Output
voltage

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

IN for

positive logic modules) so that the module is ON by default.
After applying input voltage to the module, a minimum 10msec
delay is required before applying voltage on the SEQ pin.
During this time, a voltage of 50mV (± 20 mV) is maintained on
the SEQ pin.

This can be done by applying the sequencing voltage through
a resistor R1connected in series with the SEQ pin. This delay
gives the module enough time to complete its internal power­up 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. 47) according to the following
equation

24950

1−=

R

V

IN

ohms,

05.0

the voltage at the sequencing pin will be 50mV when the
sequencing signal is at zero.

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 set­point 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.

VIN+

R1

SEQ

GND

Figure 47. Circuit showing connection of the sequencing
signal to the SEQ pin.

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 EZ­SEQUENCE

TM

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-SEQUENCE
disabled. For additional guidelines on using the EZ­SEQUENCE

TM

feature please refer to Application Note AN04­008 “Application Guidelines for Non-Isolated Converters:
Guidelines for Sequencing of Multiple Modules”, or contact the
GE technical representative for additional information.

Power Good

The 12V MIcro TLynx
(PGOOD) signal that is implemented with an open-drain output
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 ±11% outside the setpoint value. The
PGOOD terminal should be connected through a pullup resistor
(suggested value 100KΩ) to a source of 6VDC or less.

Synchronization

The 12V Micro TLynx
using an external signal. Details of the SYNC signal are
provided in the Electrical Specifications table. If the
synchronization function is not being used, leave the SYNC pin
floating.

Tunable Loop

The 12V Micro TLynxTM 12A modules have a new feature that
optimizes transient response of the module called Tunable

TM

.

Loop

External capacitors are usually added to the output of the
module for two reasons: to reduce output ripple and noise (see
Figure 41) and to reduce output voltage deviations from the

TM

MODULE

499K

10K

+

-

TM

12A modules provide a Power Good

TM

series of modules can be synchronized

OUT

TM

feature must be

May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 17

GE

Data Sheet

12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules

4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current

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.

TM

The Tunable Loop
voltage control loop to match the filter network connected to
the output of the module. The Tunable Loop

allows the user to externally adjust the

TM

is implemented by
connecting a series R-C between the SENSE and TRIM pins of the
module, as shown in Fig. 48. This R-C allows the user to
externally adjust the voltage loop feedback compensation of the
module.

Recommended values of R

TUNE

and C

for different output

TUNE

capacitor combinations are given in Tables 2 and 3. Table 2
shows the recommended values of R

TUNE

and C

for different

TUNE

values of ceramic output capacitors up to 940F that might be
needed for an application to meet output ripple and noise
requirements. Selecting R

TUNE

and C

according to Table 2 will

TUNE

ensure stable operation of the module

VOUT

SENSE

RTUNE

Table 3. Recommended values of R
transient deviation of 2% of Vout for a 6A step load with
Vin=12V.

Vo 5V 3.3V 2.5V 1.8V 1.2V 0.69V

1x47μF

2x47μF

+

330μF

Polymer

6x47μF +

330μF

Polymer

Co

4x47μF

R

TUNE

270 220 220 220 150 150

C

TUNE

3300pF 4700pF 6800pF 18nF 33nF 100nF

ΔV

91mV 60mV 47mV 35mV 23mV 12mV

+

330μF

Polymer

TUNE

and C

6x47μF +

2x330μF

Polymer

TUNE

to obtain

4x47μF +

6x330μF
Polymer

MODULE

C O

CTUNE

TRIM

GND

Figure. 48. Circuit diagram showing connection of R

to tune the control loop of the module.

C

TUNE

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 R
order to meet 2% output voltage deviation limits for some
common output voltages in the presence of a 6A to 12A step
change (50% of full load), with an input voltage of 12V.

Please contact your GE 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 R
for Vin=12V and various external ceramic capacitor
combinations.

Co

1x47μF 2x47μF 4x47μF 10x47μF 20x47μF

R

C

470 270 150 150 150

TUNE

1000pF 3300pF 4700pF 8200pF 12nF

TUNE

RTrim

TUNE

TUNE

TUME

and C

and C

TUNE

and

TUNE

in

May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 18

A

f

GE

Data Sheet

12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules

4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current

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 49. The preferred airflow direction
for the module is in Figure 50. The derating data applies to
airflow in either direction of the module’s short axis.

25.4_

Wind Tunnel

PWBs

(1.0)

Power Module

The thermal reference points, T
also shown in Figure 50. For reliable operation the
temperatures at these points should not exceed 125
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.

used in the specifications are

ref

o

C. The

76.2_
(3.0)

x

Probe Location

12.7_

(0.50)

ir

flow

Figure 49. Thermal Test Setup.

for measuring
airflow and
ambient
temperature

Tre

Figure 50. Preferred airflow direction and location of hot­spot of the module (Tref).

Modules marked ruggedized with a “D” suffix operate up to an
ambient of 105°C. For the remaining types de-rating curves for
individual output voltages meet existing specifications up to
85°C.

May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 19

GE

Data Sheet

12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules

4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current

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-STD­810, 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.

Frequency (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

Frequency (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

Table 4: Performance Vibration Qualification - All Axes

PSD Level

(G2/Hz)

Table 5: Endurance Vibration Qualification - All Axes

PSD Level

(G2/Hz)

Frequency (Hz)

Frequency (Hz)

PSD Level

(G2/Hz)

PSD Level

(G2/Hz)

Frequency (Hz)

Frequency (Hz)

PSD Level

(G2/Hz)

PSD Level

(G2/Hz)

May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 20

GE

Data Sheet

12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules

4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current

Example Application Circuit

Requirements:
Vin: 12V
Vout: 1.8V
Iout: 9.0A max., worst case load transient is from 6A to 9A

ΔVout: 1.5% of Vout (27mV) for worst case load transient
Vin, ripple 1.5% of Vin (180mV, p-p)

Vin+ Vout+

VIN

MODULE

+

CI1

CI2

MODULE

VOUT

VS+

RTUNE

CTUNE

CO1

+

CO2

Q1

ON/OFF

GND

CI1 22μF/16V ceramic capacitor (e.g. Murata GRM32ER61C226KE20)
CI2 100μF/16V bulk electrolytic
CO1 6 x 47μF/6.3V ceramic capacitor (e.g. Murata GRM31CR60J476ME19)
CO2 330μF/6.3V Polymer (e.g. Sanyo, Poscap)
CTune 15nF ceramic capacitor (can be 1206, 0805 or 0603 size)
RTune 150 ohms SMT resistor (can be 1206, 0805 or 0603 size)
RTrim 6.19kΩ SMT resistor (can be 1206, 0805 or 0603 size, recommended tolerance of 0.1%)

TRIM

VS-

RTrim

May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 21

GE

Data Sheet

12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules

4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current

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.)

Side View

May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 22

GE

Data Sheet

12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules

4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current

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 SEQ
4 GND
5 TRIM
6 VOUT
7 VS+
8 VS­9 PG

10 SYNC

May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 23

GE

Data Sheet

12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules

4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current

Packaging Details

The 12V Micro TLynxTM modules are supplied in tape & reel as standard. Modules are shipped in quantities of 250 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: 44.00 mm (1.732”)

May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 24

GE

Data Sheet

12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules

4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current

Surface Mount Information

Pick and Place

The 12V Micro TLynxTM 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 300
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 GE for special manufacturing process instructions.

Only ruggedized (-D version) modules with additional epoxy will
work with a customer’s first side assembly. For other versions,
first side assembly should be avoided

Lead Free Soldering

The 12V Micro TLynxTM 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. 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 4-2). The suggested
Pb-free solder paste is Sn/Ag/Cu (SAC). The recommended linear
reflow profile using Sn/Ag/Cu solder is shown in Fig. 51.
Soldering outside of the recommended profile requires testing to
verify results and performance. For questions regarding Land
grid array(LGA) soldering, solder volume; please contact GE for
special manufacturing process instructions

MSL Rating

The 12V Micro TLynxTM modules have a MSL rating of 2a.

o

C. The label also carries product information such

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-STD­033A). 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.

300

Per J-STD-020 Rev. C

250

200

150

100

Reflow Temp (°C)

50

0

Heating Zone

1°C/Second

Peak Temp 260°C

Reflow Time (Seconds)

Figure 51. 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).

* Min. Time Above 235°C
15 Seconds

*Time Above 217°C

60 Seconds

Cooling

Zone

Storage and Handling

The recommended storage environment and handling
procedures for moisture-sensitive surface mount packages is

May 2, 2013 ©2013 General Electric Company. All rights reserved. Page 25

GE

Data Sheet

12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules

4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current

Ordering Information

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

Table 6. Device Codes

Device Code

APTS012A0X3-SRZ 4.5 – 14Vdc 0.69 – 5.5Vdc 12A Negative SMT CC109126042

APTS012A0X43-SRZ 4.5 – 14Vdc 0.69 – 5.5Vdc 12A Positive SMT CC109126050

APTS012A0X3-25SRZ* 4.5 – 14Vdc 0.69 – 5.5Vdc 12A Negative SMT CC109142171

APTS012A0X3-SRDZ

Input

Voltage Range

4.5 – 14Vdc 0.69 – 5.5Vdc 12A Negative SMT CC109150224

* Special codes, consult factory before ordering

Table 7. Coding Scheme

TLynx

family

Sequencing

feature.

AP T S 012A0 X 4 -SR -D Z

T = with Seq.

X = w/o Seq.

Input

voltage

range

S = 4.5 -

14V

Output
current

12.0A X =

utput voltage On/Off

programmable

output

Output

Voltage

Output

Current

logic

= positive

o entry =

egative

On/Off

Logic

S = Surface

Mount

R = Tape&Reel

Connector

Type

Options ROHS Compliance

D = 105C

operating

ambient, 40G

operating shock

as per MIL Std

810F

Comcodes

Z = ROHS6

Contact Us

For more information, call us at

USA/Canada:

[phone], or [phone]

Asia-Pacific:

+86.021.54279977*808

Europe, Middle-East and Africa:

+49.89.74423-206

India:
+91.80.28411633

May 2, 2013 ©2013 General Electric Company. All rights reserved. Version 1.19

www.ge.com/powerelectronics