GE Data Sheet
May 7, 2013 ©2013 General Electric Company. All rights reserved.
12V Austin SuperLynxTM 16A: Non-Isolated DC-DC Power Module
10Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 16A Output Current
Features
Compliant to RoHS EU Directive 2002/95/EC (-Z
versions)
Compliant to ROHS EU Directive 2002/95/EC with lead
solder exemption (non-Z versions)
Delivers up to 16A output current
High efficiency – 92% at 3.3V full load (VIN = 12.0V)
Small size and low profile:
33.0 mm x 13.46 mm x 8.28 mm
(1.30 in x 0.53 in x 0.326 in)
Low output ripple and noise
High Reliability:
Calculated MTBF = 4.4M hours at 25oC Full-load
Constant switching frequency (300 kHz)
Output voltage programmable from 0.75 Vdc to 5.5Vdc
via external resistor
Line Regulation: 0.3% (typical)
Load Regulation: 0.4% (typical)
Temperature Regulation: 0.4 % (typical)
Remote On/Off
Remote Sense
Output overcurrent protection (non-latching)
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
Enterprise Networks
Latest generation IC’s (DSP, FPGA, ASIC) and
Microprocessor powered applications
Description
Austin SuperLynxTM 12V SMT (surface mount technology) power modules are non-isolated DC-DC converters that can deliver up to
16A of output current with full load efficiency of 92% at 3.3V output. These modules provide a precisely regulated output voltage
ranging from 0.75Vdc to 5.5Vdc, programmable via an external resistor over a wide range of input voltage (VIN = 10 – 14Vdc).
* 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
RoHS Compliant
GE Data Sheet
12V Austin SuperLynxTM 16A: Non-Isolated DC-DC Power Modules
10Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 16A Output Current
May 7, 2013 ©2013 General Electric Company. All rights reserved. Page 2
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings
only, functional operation of the device is not implied at these or any other conditions in excess of those given in the operations
sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect the device reliability.
Parameter Device Symbol Min Max Unit
Input Voltage All VIN -0.3 15 Vdc
Continuous
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 VO,set ≤ VIN – 0.5V VIN 10.0 12.0 14.0 Vdc
Maximum Input Current All IIN,max 9.5 Adc
(VIN=10.0V to 14.0V, IO=IO, max )
Input No Load Current VO,set = 0.75 Vdc IIN,No load 40 mA
(VIN = 12.0Vdc, Io = 0, module enabled) VO,set = 5.0Vdc IIN,No load 100 mA
Input Stand-by Current All IIN,stand-by 2 mA
(VIN = 12.0Vdc, module disabled)
Inrush Transient All I2t 0.4 A2s
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 1μH source impedance; VIN, min to VIN,
max, IO= IOmax ; See Test configuration section)
All 30 mAp-p
Input Ripple Rejection (120Hz) All 30 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 being part of a
complex 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 15 A
(see Safety Considerations section). Based on the information provided in this data sheet on inrush energy and maximum dc input
current, the same type of fuse with a lower rating can be used. Refer to the fuse manufacturer’s data sheet for further information.
GE Data Sheet
12V Austin SuperLynxTM 16A: Non-Isolated DC-DC Power Modules
10Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 16A Output Current
May 7, 2013 ©2013 General Electric Company. All rights reserved. Page 3
Electrical Specifications (continued)
Parameter Device Symbol Min Typ Max Unit
Output Voltage Set-point All VO, set -2.0 VO, set +2.0 % VO, set
(VIN=IN, min, IO=IO, max, TA=25°C)
Output Voltage All VO, set -2.5% ⎯ +3.5% % VO, set
(Over all operating input voltage, resistive load,
and temperature conditions until end of life)
Adjustment Range All VO 0.7525 5.5 Vdc
Selected by an external resistor
Output Regulation
Line (VIN=VIN, min to VIN, max) All
⎯ 0.3 ⎯ % VO, set
Load (IO=IO, min to IO, max) All
⎯ 0.4 ⎯ % VO, set
Temperature (Tref=TA, min to TA, max) All
⎯ 0.4 ⎯ % VO, set
Output Ripple and Noise on nominal output
(VIN=VIN, nom and IO=IO, min to IO, max
Cout = 1μF ceramic//10μFtantalum capacitors)
RMS (5Hz to 20MHz bandwidth) All ⎯ 12 30 mVrms
Peak-to-Peak (5Hz to 20MHz bandwidth) All ⎯ 30 75 mVpk-pk
External Capacitance
ESR ≥ 1 mΩ All CO, max ⎯ ⎯ 1000 μF
ESR ≥ 10 mΩ All CO, max ⎯ ⎯ 5000 μF
Output Current All Io 0 16 Adc
Output Current Limit Inception (Hiccup Mode ) All IO, lim ⎯ 180 ⎯ % Io
(VO= 90% of VO, set)
Output Short-Circuit Current All IO, s/c ⎯ 3 ⎯ Adc
(VO≤250mV) ( Hiccup Mode )
Efficiency VO,set = 0.75Vdc η 79.0 %
VIN= VIN, nom, TA=25°C VO, set = 1.2Vdc η 85.0 %
IO=IO, max , VO= VO,set V
O,set = 1.5Vdc η 87.0 %
V
O,set = 1.8Vdc η 88.0 %
V
O,set = 2.5Vdc η 90.5 %
V
O,set = 3.3Vdc η 92.0 %
V
O,set = 5.0Vdc η 94.0 %
Switching Frequency All fsw ⎯ 300 ⎯ kHz
Dynamic Load Response
(dIo/dt=2.5A/μs; VIN = VIN, nom; TA=25°C) All Vpk ⎯ 200 ⎯ mV
Load Change from Io= 50% to 100% of Io,max;
1μF ceramic// 10 μF tantalum
Peak Deviation
Settling Time (Vo<10% peak deviation) All ts ⎯ 25 ⎯ μs
(dIo/dt=2.5A/μs; VIN = VIN, nom; TA=25°C) All Vpk ⎯ 200 ⎯ mV
Load Change from Io= 100% to 50%of Io,max:
1μF ceramic// 10 μF tantalum
Peak Deviation
Settling Time (Vo<10% peak deviation) All ts ⎯ 25 ⎯ μs
GE Data Sheet
12V Austin SuperLynxTM 16A: Non-Isolated DC-DC Power Modules
10Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 16A Output Current
May 7, 2013 ©2013 General Electric Company. All rights reserved. Page 4
Electrical Specifications (continued)
Parameter Device Symbol Min Typ Max Unit
Dynamic Load Response
(dIo/dt=2.5A/μs; V VIN = VIN, nom; TA=25°C) All Vpk ⎯ 100 ⎯ mV
Load Change from Io= 50% to 100% of Io,max;
Co = 2x150 μF polymer capacitors
Peak Deviation
Settling Time (Vo<10% peak deviation) All ts ⎯ 50 ⎯ μs
(dIo/dt=2.5A/μs; VIN = VIN, nom; TA=25°C) All Vpk ⎯ 100 ⎯ mV
Load Change from Io= 100% to 50%of Io,max:
Co = 2x150 μF polymer capacitors
Peak Deviation
Settling Time (Vo<10% peak deviation) All ts ⎯ 50 ⎯ μs
General Specifications
Parameter Min Typ Max Unit
Calculated MTBF (IO=IO, max, TA=25°C) 4,444,000 Hours
Weight ⎯ 5.6 (0.2) ⎯ g (oz.)
GE Data Sheet
12V Austin SuperLynxTM 16A: Non-Isolated DC-DC Power Modules
10Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 16A Output Current
May 7, 2013 ©2013 General Electric Company. All rights reserved. Page 5
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
Remote On/Off Signal interface
(VIN=VIN, min to VIN, max; Open collector npn or equivalent
Compatible, Von/off signal referenced to GND
See feature description section)
Logic High (On/Off Voltage pin open - Module ON)
Von/Off All VIH — — VIN V
Ion/Off All IIH — — 10 μA
Logic Low (Von/Off ≤ 0.3V – Module OFF)
Von/Off All VIL — — 0.3 V
Ion/off All IIL — — 1 mA
Turn-On Delay and Rise Times
(IO=IO, max , VIN = VIN, nom, TA = 25 oC, )
Case 1: On/Off input is set to Logic Low (Module
ON) and then input power is applied (delay from
instant at which VIN =VIN, min until Vo=10% of Vo,set)
All Tdelay — 3 — msec
Case 2: Input power is applied for at least one second
and then the On/Off input is set to logic Low (delay from
instant at which Von/Off=0.3V until Vo=10% of Vo, set)
All Tdelay — 3 — msec
Output voltage Rise time (time for Vo to rise from 10%
of Vo,set to 90% of Vo, set)
All Trise — 4 6 msec
Output voltage overshoot – Startup — 1 % VO, set
IO= IO, max; VIN = 3.0 to 5.5Vdc, TA = 25 oC
Remote Sense Range — — 0.5
Overtemperature Protection All Tref ⎯ 125 ⎯ °C
(See Thermal Consideration section)
Input Undervoltage Lockout
Turn-on Threshold All 8.2 V
Turn-off Threshold All 8.0 V
GE Data Sheet
12V Austin SuperLynxTM 16A: Non-Isolated DC-DC Power Modules
10Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 16A Output Current
May 7, 2013 ©2013 General Electric Company. All rights reserved. Page 6
Characteristic Curves
The following figures provide typical characteristics for the Austin SuperLynxTM 12V SMT modules at 25ºC.
EFFICIENCY, η (%)
70
72
74
76
78
80
82
84
86
88
90
0481216
Vin=14V
Vin=10V
Vin=12V
EFFICIENCY, η (%)
74
76
78
80
82
84
86
88
90
92
94
0481216
Vin=14V
Vin=10V
Vin=12V
OUTPUT CURRENT, IO (A) OUTPUT CURRENT, IO (A)
Figure 1. Converter Efficiency versus Output Current (Vout
= 0.75Vdc).
Figure 4. Converter Efficiency versus Output Current (Vout =
1.8Vdc).
EFFICIENCY, η (%)
70
72
74
76
78
80
82
84
86
88
90
0481216
Vin=14V
Vin=10V
Vin=12V
EFFICIENCY, η (%)
74
76
78
80
82
84
86
88
90
92
94
0481216
Vin=14V
Vin=10V
Vin=12V
OUTPUT CURRENT, IO (A) OUTPUT CURRENT, IO (A)
Figure 2. Converter Efficiency versus Output Current (Vout
= 1.2Vdc).
Figure 5. Converter Efficiency versus Output Current (Vout =
2.5Vdc).
EFFICIENCY, η (%)
72
74
76
78
80
82
84
86
88
90
92
0481216
Vin=14V
Vin=10V
Vin=12V
EFFICIENCY, η (%)
74
76
78
80
82
84
86
88
90
92
94
96
0481216
Vin=14V
Vin=10V
Vin=12V
OUTPUT CURRENT, IO (A) OUTPUT CURRENT, IO (A)
Figure 3. Converter Efficiency versus Output Current (Vout =
1.5Vdc).
Figure 6. Converter Efficiency versus Output Current (Vout =
3.3Vdc).
GE Data Sheet
12V Austin SuperLynxTM 16A: Non-Isolated DC-DC Power Modules
10Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 16A Output Current
May 7, 2013 ©2013 General Electric Company. All rights reserved. Page 7
Characteristic Curves (continued)
The following figures provide typical characteristics for the Austin SuperLynxTM 12V SMT modules at 25ºC.
INPUT CURRENT, IIN (A)
0
2
4
6
8
10
12
8 9 10 11 12 13 14
Io =0A
Io =16A
Io =8A
OUTPUT CURRENT, OUTPUT VOLTAGE
IO (A) (2A/div) VO (V) (200mV/div)
INPUT VOLTAGE, VIN (V) TIME
,
t
(
5
μ
s/div
)
Figure 7. Input voltage vs. Input Current
(Vout = 5.0Vdc).
Figure 10. Transient Response to Dynamic Load Change from
50% to 100% of full load (Vo = 5.0Vdc).
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT CURRENT, OUTPUT VOLTAGE
IO (A) (2A/div) VO (V) (200mV/div)
TIME, t (2μs/div) TIME, t (5 μs/div)
Figure 8. Typical Output Ripple and Noise
(Vin = 12V dc, Vo = 2.5 Vdc, Io=16A).
Figure 11. Transient Response to Dynamic Load Change from
100% to 50% of full load (Vo = 5.0 Vdc).
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT CURRENT, OUTPUT VOLTAGE
IO (A) (2A/div) VO (V) (50mV/div)
TIME, t (2μs/div) TIME, t (10μs/div)
Figure 9. Typical Output Ripple and Noise
(Vin = 12V dc, Vo = 5.0 Vdc, Io=16A).
Figure 12. Transient Response to Dynamic Load Change from
50% to 100% of full load (Vo = 5.0 Vdc, Cext = 2x150 μF
Polymer Capacitors).
GE Data Sheet
12V Austin SuperLynxTM 16A: Non-Isolated DC-DC Power Modules
10Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 16A Output Current
May 7, 2013 ©2013 General Electric Company. All rights reserved. Page 8
Characteristic Curves (continued)
The following figures provide typical characteristics for the Austin SuperLynxTM 12V SMT modules at 25ºC.
OUTPUT CURRENT OUTPUTVOLTAGE
IO (A) (2A/div) VO (V) (100mV/div)
OUTPUT VOLTAGE, INPUT VOLTAGE
Vo (V) (2V/div) VIN (V) (5V/div)
TIME, t (10μs/div) TIME, t (2 ms/div)
Figure 13. Transient Response to Dynamic Load Change
from 100% of 50% full load (Vo = 5.0 Vdc, Cext = 2x150 μF
Pol
y
mer Ca
p
acitors).
Figure 16. Typical Start-Up with application of Vin with low-
ESR polymer capacitors at the output (7x150 μF) (Vin = 12Vdc,
Vo = 5.0Vdc
,
Io = 16A
,
Co = 1050
μ
F).
OUTPUT VOLTAGE On/Off VOLTAGE
VOV) (2V/div) VOn/off (V) (5V/div)
OUTPUT VOLTAGE
VOV) (1V/div)
TIME, t (2 ms/div) TIME, t (2 ms/div)
Figure 14. Typical Start-Up Using Remote On/Off
(Vin = 12Vdc, Vo = 5.0Vdc, Io =16A).
Figure 17 Typical Start-Up with Prebias (Vin = 12Vdc, Vo =
5.0Vdc, Io = 1A, Vbias =3.3 Vdc).
OUTPUT VOLTAGE On/Off VOLTAGE
VOV) (2V/div) VOn/off (V) (5V/div)
OUTPUT CURRENT,
IO (A) (10A/div)
TIME, t (2 ms/div) TIME, t (10ms/div)
Figure 15. Typical Start-Up Using Remote On/Off with Low-
ESR external capacitors (7x150uF Polymer)
(Vin = 12Vdc, Vo = 5.0Vdc, Io = 16A, Co = 1050μF).
Figure 18. Output short circuit Current (Vin = 12Vdc, Vo =
0.75Vdc).
GE Data Sheet
12V Austin SuperLynxTM 16A: Non-Isolated DC-DC Power Modules
10Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 16A Output Current
May 7, 2013 ©2013 General Electric Company. All rights reserved. Page 9
Characteristic Curves (continued)
The following figures provide thermal derating curves for the Austin SuperLynxTM 12V SMT modules.
OUTPUT CURRENT, Io (A)
0
2
4
6
8
10
12
14
16
18
20 30 40 50 60 70 80 90
100 LFM
200 LFM
NC
300 LFM
400 LFM
OUTPUT CURRENT, Io (A)
0
2
4
6
8
10
12
14
16
18
20 30 40 50 60 70 80 90
100 LFM
200 LFM
NC
300 LFM
400 LFM
AMBIENT TEMPERATURE, TA OC AMBIENT TEMPERATURE, TA OC
Figure 19. Derating Output Current versus Local Ambient
Temperature and Airflow (Vin = 12Vdc, Vo=0.75Vdc).
Figure 22. Derating Output Current versus Local Ambient
Temperature and Airflow (Vin = 12Vdc, Vo=5.0 Vdc).
OUTPUT CURRENT, Io (A)
0
2
4
6
8
10
12
14
16
18
20 30 40 50 60 70 80 90
100 LFM
200 LFM
NC
300 LFM
400 LFM
AMBIENT TEMPERATURE, TA OC
Figure 20. Derating Output Current versus Local Ambient
Temperature and Airflow (Vin = 12Vdc, Vo=1.8 Vdc).
OUTPUT CURRENT, Io (A)
0
2
4
6
8
10
12
14
16
18
20 30 40 50 60 70 80 90
100 LFM
200 LFM
NC
300 LFM
400 LFM
AMBIENT TEMPERATURE, TA OC
Figure 21. Derating Output Current versus Local Ambient
Temperature and Airflow (Vin = 12Vdc, Vo=3.3 Vdc).
Test Configurations
GE Data Sheet
12V Austin SuperLynxTM 16A: Non-Isolated DC-DC Power Modules
10Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 16A Output Current
May 7, 2013 ©2013 General Electric Company. All rights reserved. Page 10
TO OSCILLOSCOPE CURRENT PROBE
LTEST
1μH
BATTERY
CS 1000μF
Electrolytic
E.S.R.<0.1Ω
@ 20°C 100kHz
2x100μF
Tantalum
VIN(+)
COM
NOTE: Measure input reflected ripple current with a simulated
source inductance (LTEST) of 1μH. Capacitor CS offsets
possible battery impedance. Measure current as shown
above.
CIN
Figure 23. 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.
V
O
(+)
COM
1uF .
RESISTIVE
LOAD
SCOPE
COPPER STRIP
GROUND PLANE
10uF
Figure 24. Output Ripple and Noise Test Setup.
VO
COM
VIN(+)
COM
RLOAD
Rcontact Rdistribution
Rcontact Rdistribution
Rcontact
Rcontact
Rdistribution
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 25. Output Voltage and Efficiency Test Setup.
η =
VO. IO
VIN. IIN
x 100 %
Efficiency
Design Considerations
Input Filtering
The Austin SuperLynxTM 12V SMT module should be connected
to a low-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.
In a typical application, 6x47 µF low-ESR tantalum capacitors
(AVX part #: TPSE476M025R0100, 47µF 25V 100 mΩ ESR
tantalum capacitor) will be sufficient to provide adequate ripple
voltage at the input of the module. To further minimize ripple
voltage at the input, very low ESR ceramic capacitors are
recommended at the input of the module. Figure 26 shows
input ripple voltage (mVp-p) for various outputs with 6x47 µF
tantalum capacitors and with 6x22 µF ceramic capacitor (TDK
part #: C4532X5R1C226M) at full load. .
Input Ripple Voltage (mVp-p)
0
50
10 0
15 0
200
250
300
350
0 12 3456
Tantalum
Cer amic
Output Voltage (Vdc)
Figure 26. Input ripple voltage for various output with 6x47
µF tantalum capacitors and with 6x22 µF ceramic capacitors
at the input (full load).
GE Data Sheet
12V Austin SuperLynxTM 16A: Non-Isolated DC-DC Power Modules
10Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 16A Output Current
May 7, 2013 ©2013 General Electric Company. All rights reserved. Page 11
Design Considerations (continued)
Output Filtering
The Austin SuperLynxTM 12V SMT module is designed for low
output ripple voltage and will meet the maximum output ripple
specification with 1 µF ceramic and 10 µF tantalum 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.
For stable operation of the module, limit the capacitance to less
than the maximum output capacitance as specified in the
electrical specification table.
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.
GE Data Sheet
12V Austin SuperLynxTM 16A: Non-Isolated DC-DC Power Modules
10Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 16A Output Current
May 7, 2013 ©2013 General Electric Company. All rights reserved. Page 12
Feature Description
Remote On/Off
The Austin SuperLynxTM 12V SMT power modules feature an
On/Off pin for remote On/Off operation of the module. If not
using the remote On/Off pin, leave the pin open (module will be
On). The On/Off pin signal (Von/Off) is referenced to ground. To
switch the module on and off using remote On/Off, connect an
open collector npn transistor between the On/Off pin and GND
(See Figure 27).
During a logic-high (On/Off pin is pulled high internal to the
module) when the transistor is in the Off state, the power
module is ON. The maximum allowable leakage current of the
transistor when Von/off = VIN,max is 10µA. During a logic-low
when the transistor is turned-on, the power module is OFF.
During this state VOn/Off is less than 0.3V and the maximum
IOn/Off = 1mA.
VIN(+)
GND
Ion/off
Von/off
Enable
20k
20k
20k
20k
On/Of
f
+
-
Css
Figure 27. Remote On/Off Implementation.
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. The typical average output current during
hiccup is 3A.
Input Undervoltage Lockout
At input voltages below the input undervoltage lockout limit,
module operation is disabled. The module will begin to operate
at an input voltage above the undervoltage lockout turn-on
threshold.
Overtemperature Protection
To provide protection in a fault condition, the unit is equipped
with a thermal shutdown circuit. The unit will shutdown if the
thermal reference point Tref, exceeds 125oC (typical), but the
thermal shutdown is not intended as a guarantee that the
unit will survive temperatures beyond its rating. The module
will automatically restarts after it cools down.
Output Voltage Programming
The output voltage of the Austin SuperLynxTM 12V can be
programmed to any voltage from 0.75Vdc to 5.5Vdc by
connecting a resistor (shown as Rtrim in Figure 28) between
the Trim and GND pins of the module. Without an external
resistor between the Trim and GND pins, the output of the
module will be 0.7525Vdc. To calculate the value of the trim
resistor, Rtrim for a desired output voltage, use the following
equation:
Ω
−
−
=1000
7525.0
10500
Vo
Rtrim
Rtrim is the external resistor in Ω
Vo is the desired output voltage
For example, to program the output voltage of the Austin
SuperLynxTM 12V module to 1.8V, Rtrim is calculated as follows:
−
−
=1000
75.08.1
10500
Rtrim
Ω= kRtrim 024.9
VO(+)
TRIM
GND
LOAD
VIN(+)
ON/OFF
Rtrim
Figure 28. Circuit configuration to program output voltage
using an external resistor.
Austin SuperLynxTM 12Vdc can also be programmed by
applying a voltage between the TRIM and GND pins (Figure
29). The following equation can be used to determine the
value of Vtrim needed to obtain a desired output voltage Vo:
{}()
7525.00667.07.0 −×−= VoVtrim
For example, to program the output voltage of a SuperLynxTM
module to 3.3 Vdc, Vtrim is calculated as follows:
{}
)7525.03.30667.07.0( −×−=Vtrim
VVtrim 530.0=
GE Data Sheet
12V Austin SuperLynxTM 16A: Non-Isolated DC-DC Power Modules
10Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 16A Output Current
May 7, 2013 ©2013 General Electric Company. All rights reserved. Page 13
Feature Descriptions (continued)
Output Voltage Programming (continued)
V
O
(+)
TRIM
GND
V
trim
LOAD
V
IN
(+)
ON/OFF
+
-
Figure 29. Circuit Configuration for programming Output
voltage using external voltage source.
Table 1 provides Rtrim values for some common output
voltages, while Table 2 provides values of the external
voltage source, Vtrim for same common output voltages.
Table 1
VO, set (V) Rtrim (KΩ)
0.7525 Open
1.2 22.46
1.5 13.05
1.8 9.024
2.5 5.009
3.3 3.122
5.0 1.472
Table 2
VO, set (V) Vtrim (V)
0.7525 Open
1.2 0.670
1.5 0.650
1.8 0.630
2.5 0.583
3.3 0.530
5.0 0.4166
By using a 1% tolerance trim resistor, set point tolerance of
±2% is 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
external trim resistor needed for a specific output voltage.
The amount of power delivered by the module is defined as the
voltage at the output terminals multiplied by the output current.
When using the trim feature, the output voltage of the module
can be increased, which at the same output current would
increase the power output of the module. Care should be taken
to ensure that the maximum output power of the module
remains at or below the maximum rated power (Pmax = Vo,set x
Io,max).
Voltage Margining
Output voltage margining can be implemented in the Austin
SuperLynxTM 12V SMT 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 30
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 GE
technical representative for additional details.
Vo
Austin Lynx or
Lynx II Series
GND
Trim
Q1
Rtrim
Rmargin-up
Q2
Rmargin-down
Figure 30. Circuit Configuration for margining Output
voltage.
GE Data Sheet
12V Austin SuperLynxTM 16A: Non-Isolated DC-DC Power Modules
10Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 16A Output Current
May 7, 2013 ©2013 General Electric Company. All rights reserved. Page 14
Feature Descriptions (continued)
Remote Sense
The Austin SuperLynxTM 12V 12V SMTpower modules have a
Remote Sense feature to minimize the effects of distribution
losses by regulating the voltage at the Remote Sense pin (See
Figure 31). The voltage between the Sense pin and Vo pin must
not exceed 0.5V.
The amount of power delivered by the module is defined as the
output voltage multiplied by the output current (Vo x Io). When
using Remote Sense, the output voltage of the module can
increase, which if the same output is maintained, increases the
power output by the module. Make sure that the maximum
output power of the module remains at or below the maximum
rated power. When the Remote Sense feature is not being
used, connect the Remote Sense pin to output pin.
VO
COM
VIN(+)
COM
RLOAD
Rcontact Rdistribution
Rcontact Rdistribution
Rcontact
Rcontact
Rdistribution
Rdistribution
Sense
Figure 31. Remote sense circuit configuration.
GE Data Sheet
12V Austin SuperLynxTM 16A: Non-Isolated DC-DC Power Modules
10Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 16A Output Current
May 7, 2013 ©2013 General Electric Company. All rights reserved. Page 15
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 33. Note that the airflow is
parallel to the short axis of the module as shown in figure 32.
The derating data applies to airflow in either direction of the
module’s short axis.
Air Flow
Tref
Top View
Bottom View
Figure 32. Tref Temperature measurement location.
The thermal reference point, Tref used in the specifications is
shown in Figure 32. For reliable operation this temperature
should not exceed 115oC.
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 33. Thermal Test Set-up.
Heat Transfer via Convection
Increased airflow over the module enhances the heat
transfer via convection. Thermal derating curves showing
the maximum output current that can be delivered at
different local ambient temperature (TA) for airflow
conditions ranging from natural convection and up to 2m/s
(400 ft./min) are shown in the Characteristics Curves section.
A
ir
flow
x
Po w e r M o d u le
ind Tunnel
PWBs
5.97_
(0.235)
76.2_
(3.0)
Pro b e Lo c a t io n
for measuring
airflow and
ambient
temperature
25.4_
(1.0)
GE Data Sheet
12V Austin SuperLynxTM 16A: Non-Isolated DC-DC Power Modules
10Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 16A Output Current
May 7, 2013 ©2013 General Electric Company. All rights reserved. Page 16
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.)
GE Data Sheet
12V Austin SuperLynxTM 16A: Non-Isolated DC-DC Power Modules
10Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 16A Output Current
May 7, 2013 ©2013 General Electric Company. All rights reserved. Page 17
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.)
Name Pin No. Function
ON/OFF 1 Remote On/Off Control
Vin 2 Positive Input Voltage
GND 4 Common Ground
Vout 5 Positive Output Voltage
TRIM 6 Output Voltage Trim
SENSE 7 Positive Remote Sense
GE Data Sheet
12V Austin SuperLynxTM 16A: Non-Isolated DC-DC Power Modules
10Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 16A Output Current
May 7, 2013 ©2013 General Electric Company. All rights reserved. Page 18
Packaging Details
The Austin SuperLynxTM 12V SMTversion is 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 diameter: 330.2 mm (13.00)
Inside diameter: 177.8 mm (7.00”)
Tape Width: 44.0 mm (1.73”)
GE Data Sheet
12V Austin SuperLynxTM 16A: Non-Isolated DC-DC Power Modules
10Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 16A Output Current
May 7, 2013 ©2013 General Electric Company. All rights reserved. Page 19
Surface Mount Information
Pick and Place
The Austin SuperLynxTM 12V SMT modules use an open
frame construction and are designed for a fully automated
assembly process. The modules are fitted with a label
designed to provide a large surface area for pick and place
operations. The label meets all the requirements for surface
mount processing, as well as safety standards, and is able to
withstand reflow temperatures of up to 300oC. The label
also carries product information such as product code, serial
number and the location of manufacture.
Figure 34. Pick and Place Location.
Nozzle Recommendations
The module weight has been kept to a minimum by using
open frame construction. Even so, these modules have a
relatively large mass when compared to conventional SMT
components. Variables such as nozzle size, tip style,
vacuum pressure and placement speed should be
considered to optimize this process. The minimum
recommended nozzle diameter for reliable operation is
6mm. The maximum nozzle outer diameter, which will safely
fit within the allowable component spacing, is 9 mm.
Oblong or oval nozzles up to 11 x 9 mm may also be used
within the space available.
Reflow Soldering Information
The Austin SuperLynxTM 12V SMT power modules are large
mass, low thermal resistance devices and typically heat up
slower than other SMT components. It is recommended that
the customer review data sheets in order to customize the
solder reflow profile for each application board assembly.
The following instructions must be observed when soldering
these units. Failure to observe these instructions may result
in the failure of or cause damage to the modules, and can
adversely affect long-term reliability.
Typically, the eutectic solder melts at 183oC, wets the land,
and subsequently wicks the device connection. Sufficient
time must be allowed to fuse the plating on the connection
to ensure a reliable solder joint. There are several types of
SMT reflow technologies currently used in the industry.
These surface mount power modules can be reliably
soldered using natural forced convection, IR (radiant
infrared), or a combination of convection/IR. For reliable
soldering the solder reflow profile should be established by
accurately measuring the modules pin temperatures.
Figure 35. Reflow Profile.
An example of a reflow profile (using 63/37 solder) for the
Austin SuperLynxTM 12V SMT power module is :
• Pre-heating zone: room temperature to 183oC (2.0 to
4.0 minutes maximum)
• Initial ramp rate < 2.5oC per second
• Soaking Zone: 155 oC to 183 oC – 60 to 90 seconds
typical (2.0 minutes maximum)
• Reflow zone ramp rate:1.3oC to 1.6oC per second
• Reflow zone: 210oC to 235oC peak temperature – 30 to
60 seconds (90 seconds maximum
GE Data Sheet
12V Austin SuperLynxTM 16A: Non-Isolated DC-DC Power Modules
10Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 16A Output Current
May 7, 2013 ©2013 General Electric Company. All rights reserved. Page 20
Surface Mount Information (continued)
Lead Free Soldering
The –Z version Austin SuperLynx 12V SMT modules are lead-
free (Pb-free) and RoHS compliant and are both forward and
backward compatible in a Pb-free and a SnPb soldering
process. Failure to observe the instructions below may
result in the failure of or cause damage to the modules and
can adversely affect long-term reliability.
Pb-free Reflow Profile
Power Systems will comply with J-STD-020 Rev. C
(Moisture/Reflow Sensitivity Classification for Nonhermetic
Solid State Surface Mount Devices) for both Pb-free solder
profiles and MSL classification procedures. This standard
provides a recommended forced-air-convection reflow
profile based on the volume and thickness of the package
(table 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 Figure. 36.
MSL Rating
The Austin SuperLynx 12V SMT 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.
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. C
0
50
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
Figure 36. Recommended linear reflow profile using
Sn/Ag/Cu solder.
GE Data Sheet
12V Austin SuperLynxTM 16A: Non-Isolated DC-DC Power Modules
10Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 16A Output Current
Contact Us
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:
+49.89.74423-206
India:
+91.80.28411633
www.ge.com/powerelectronics
May 7, 2013 ©2013 General Electric Company. All rights reserved. Version 1.71
Ordering Information
Please contact your GE Sales Representative for pricing, availability and optional features.
Table 3. Device Codes
Device Code
Input
Voltage
Range
Output
Voltage
Output
Current
Efficiency
3.3V @ 16A
Connector
Type
Comcodes
AXA016A0X3-SR 10 – 14Vdc 0.75V – 5.5Vdc 16 A 92.0% SMT 108982661
AXA016A0X3-SRZ 10 – 14Vdc 0.75V – 5.5Vdc 16 A 92.0% SMT CC109104840
AXA016A0X3-SR12* 10 – 14Vdc 0.75V – 5.5Vdc 16 A 92.0% SMT 108993424
AXA016A0X3-SR12Z* 10 – 14Vdc 0.75V – 5.5Vdc 16 A 92.0% SMT CC109104485
* -12 code has 100Ω resistor between sense and output pins, internal to the module. Standard code, without –12
suffix, has 10Ω resistor between sense and output pins.
-Z refers to RoHS compliant codes