GE Data Sheet
December 5, 2019 ©2017 General Electric Corporation. All rights
reserved.
12V TLynxTM 20A: Non-Isolated DC-DC Power Modules
4.5Vdc – 14Vdc; 0.69V to 5.5Vdc output; 20A 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 (4.5Vdc-14Vdc)
Output voltage programmable from 0.69Vdc to 5.5
Vdc via external resistor
Tunable LoopTM to optimize dynamic output voltage
response
Flexible output voltage sequencing EZ-SEQUENCE
(APTS versions)
Fixed switching freqeuency and ability to synchronize
with external clock
Output overcurrent protection (non-latching)
Overtemperature protection
Remote On/Off
Remote Sense
Power Good signal
Ability to sink and source current
Small size:
33 mm x 13.46 mm x 8.5 mm
(1.3 in x 0.53 in x 0.334 in)
Wide operating temperature range [-40°C to 85°C]
UL* 60950-1Recognized, CSA† C22.2 No. 60950-1-03
Certified, and VDE‡ 0805:2001-12 (EN60950-1)
Licensed
ISO** 9001 and ISO 14001 certified manufacturing
facilities
Applications
Distributed power architectures
Intermediate bus voltage applications
Telecommunications equipment
Servers and storage applications
Networking equipment
Industrial equipment
TRIM
VOUT
SENSE
GND
CTUNE
RTUNE
RTrim
VIN
Co
Cin
Vin+ Vout+
ON/OFF
Q1
SEQ
PGOOD
MODULE
Description
The 12V TLynxTM series of power modules are non-isolated dc-dc converters that can deliver up to 20A of output current.
These modules operate over a wide range of input voltage (VIN = 4.5Vdc-14Vdc) and provide a precisely regulated output
voltage from 0.69Vdc to 5.5Vdc, programmable via an external resistor. Features include frequency synchronization,
remote On/Off, adjustable output voltage, over current and temperature protection, power good and output voltage
sequencing. The Ruggedized version (-D) is capable of operation up to 105°C and withstand high levels of shock and
vibration. The Tunable LoopTM, allows the user to optimize the dynamic response of the converter to match the load with
reduced amount of output capacitance leading to savings on cost and PWB area.
* UL is a registered trademark of Underwriters Laboratories, Inc.
† CSA is a registered trademark of Canadian Standards Association.
‡ VDE is a trademark of Verband Deutscher Elektrotechniker e.V.
** ISO is a registered trademark of the International Organization of Standards
RoHS Compliant EZ-SEQUENCETM
GE Data Sheet
12V TLynxTM 20A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 20A Output Current
December 5, 2019 ©2017 General Electric Corporation. 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
Voltage on SEQ terminal All VSEQ -0.3 VIN Vdc
Voltage on SYNC terminal All VSYNC -0.3 12 Vdc
Voltage on PG terminal All VPG -0.3 6 Vdc
Operating Ambient Temperature All TA -40 85 °C
(see Thermal Considerations section)
Storage Temperature All Tstg -55 125 °C
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions.
Parameter Device Symbol Min Typ Max Unit
Operating Input Voltage All VIN 4.5
14 Vdc
Maximum Input Current All IIN,max 20 Adc
(VIN=4.5V to 14V, IO=IO, max )
Input No Load Current
(VIN = 10.0Vdc, IO = 0, module enabled) VO,set = 0.69 Vdc IIN,No load 42 mA
(VIN = 12.0Vdc, IO = 0, module enabled) VO,set = 3.3Vdc IIN,No load 74 mA
Input Stand-by Current All IIN,stand-by 3 mA
(VIN = 12.0Vdc, module disabled)
Inrush Transient All I2t 1 A2s
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 1μH source impedance; VIN =4.5V to
14V, IO= IOmax ; See Test Configurations)
All 43 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 20 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 TLynxTM 20A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 20A Output Current
December 5, 2019 ©2017 General Electric Corporation. All rights
reserved. Page 3
Electrical Specifications (continued)
Parameter Device Symbol Min Typ Max Unit
Output Voltage Set-point All VO, set -1.5 +1.5 % VO, set
Output Voltage All VO, set -2.5 +2.5 % VO, set
(Over all operating input voltage, resistive load, and
temperature conditions until end of life)
Adjustment Range (selected by an external resistor)
(Some output voltages may not be possible depending
on the input voltage – see Feature Descriptions Section)
All VO 0.69 5.5 Vdc
Output Regulation (for VO ≥ 2.5Vdc)
Line (VIN=VIN, min to VIN, max) All
+0.4 % VO, set
Load (IO=IO, min to IO, max) All
10 mV
Output Regulation (for VO < 2.5Vdc)
Line (VIN=VIN, min to VIN, max) All
10 mV
Load (IO=IO, min to IO, max) All
5 mV
Temperature (Tref=TA, min to TA, max) All
0.5 % VO, set
Remote Sense Range All 0.5 Vdc
Output Ripple and Noise on nominal output
(VIN=VIN, nom and IO=IO, min to IO, max Co = 0.1μF // 10 μF
ceramic ca
p
acitors)
Peak-to-Peak (5Hz to 20MHz bandwidth) All 30 80 mVpk-pk
RMS 14 28 mVrms
External Capacitance1
Without the Tunable LoopTM
ESR ≥ 1 mΩ All CO, max 0 200 μF
With the Tunable LoopTM
ESR ≥ 0.15 mΩ All CO, max 0 1000 μF
ESR ≥ 10 mΩ All CO, max 0 10000 μF
Output Current All Io 0 20 Adc
Output Current Limit Inception (Hiccup Mode ) All IO, lim 120 % Io,max
Output Short-Circuit Current All IO, s/c 2.6 Adc
(VO≤250mV) ( Hiccup Mode )
Efficiency (VIN= 10Vdc) VO,set = 0.69Vdc η 72.1 %
VIN= 12Vdc, TA=25°C VO,set = 1.2Vdc η 81.3 %
IO=IO, max , VO= VO,set V
O,set = 1.8Vdc η 85.7 %
V
O, set = 2.5Vdc η 88.0 %
V
O,set = 3.3Vdc η 89.7 %
V
O,set = 5.0Vdc η 91.8 %
1 External capacitors may require using the new Tunable LoopTM feature to ensure that the module is stable as well as getting the best
transie nt re sponse. See the Tu nabl e Lo op TM section for de tails .
GE Data Sheet
12V TLynxTM 20A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 20A Output Current
December 5, 2019 ©2017 General Electric Corporation. All rights
reserved. Page 4
Electrical Specifications (continued)
Parameter Device Symbol Min Typ Max Unit
Switching Frequency All fsw 550 kHz
Frequency Synchronization
Synchronization Frequency Range 520 600 kHz
High-Level Input Voltage All VIH 2.5 V
Low-Level Input Voltage All VIL 0.8 V
Input Current, SYNC VSYNC=2.5V ISYNC 1 mA
Minimum Pulse Width, SYNC All tSYNC 250 ns
Minimum Setup/Hold Time, SYNC2 All tSYNC_SH 250 ns
Dynamic Load Response
(dIo/dt=10A/s; VIN = VIN, nom; Vout = 1.5V, TA=25°C)
Load Change from Io= 50% to 100% of Io,max; Co
= 0
Peak Deviation All Vpk 380 mV
Settling Time (Vo<10% peak deviation) All ts 30 s
Load Change from Io= 100% to 50%of Io,max:
Co = 0
Peak Deviation All Vpk 300 mV
Settling Time (Vo<10% peak deviation) All ts 30 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
Parameter Min Typ Max Unit
Calculated MTBF (IO=0.8IO, max, VO=5V, TA=40°C) Telecordia Method Issue
2, Method I Case 3 14,262,200 Hours
Weight 6.05 (0.213) g (oz.)
GE Data Sheet
12V TLynxTM 20A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 20A Output Current
December 5, 2019 ©2017 General Electric Corporation. 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 Units
On/Off Signal Interface
(VIN=VIN, min to VIN, max ; open collector or equivalent,
Signal referenced to GND)
Device is with suffix “4” – Positive Logic (See Ordering
Information)
Logic High ( Module ON)
Input High Current All IIH 25 µA
Input High Voltage All VIH VIN – 1 VIN,max V
Logic Low (Module OFF)
Input Low Current All IIL 3 mA
Input Low Voltage All VIL 3.5 V
Device Code with no suffix – Negative Logic (See Ordering
Information)
(On/OFF pin is open collector/drain logic input with
external pull-up resistor; signal referenced to GND)
Logic High (Module OFF)
Input High Current All IIH — — 1 mA
Input High Voltage All VIH 2.0 — VIN, max Vdc
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=VIN, nom, IO=IO, max , VO to within ±1% of steady state)
Case 1: On/Off input is enabled and then input power is
applied (delay from instant at which VIN = VIN, min until Vo =
10% of Vo, set)
All Tdelay — 2 — msec
Case 2: Input power is applied for at least one second and
then the On/Off input is enabled (delay from instant at
which Von/Off is enabled until Vo = 10% of Vo, set)
All Tdelay — 2 — msec
Output voltage Rise time (time for Vo to rise from
10% of Vo, set to 90% of Vo, set) All Trise — 5 — msec
Output voltage overshoot (TA = 25oC 3.0 % VO, set
VIN= VIN, min to VIN, max,IO = IO, min to IO, max)
With or without maximum external capacitance
Over Temperature Protection All Tref 135 °C
(See Thermal Considerations section)
Sequencing Delay time
Delay from VIN, min to application of voltage on SEQ pin All TsEQ-delay 10 msec
Tracking Accuracy (Power-Up: 2V/ms) All VSEQ –Vo 150 mV
(Power-Down: 2V/ms) All VSEQ –Vo 100 mV
(VIN, min to VIN, max; IO, min to IO, max VSEQ < Vo)
Input Undervoltage Lockout
Turn-on Threshold All 4.45 Vdc
Turn-off Threshold All 4.2 Vdc
Hysteresis All
0.25 Vdc
GE Data Sheet
12V TLynxTM 20A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 20A Output Current
December 5, 2019 ©2017 General Electric Corporation. All rights
reserved. Page 6
Feature Specifications (cont.)
Parameter Device Symbol Min Typ Max Units
PGOOD (Power Good)
Signal Interface Open Drain, Vsupply 6VDC
Overvoltage threshold for PGOOD 110.8 %VO, set
Undervoltage threshold for PGOOD 89.1 %VO, set
Pulldown resistance of PGOOD pin All 7 50
GE Data Sheet
12V TLynxTM 20A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 20A Output Current
December 5, 2019 ©2017 General Electric Corporation. All rights
reserved. Page 7
Characteristic Curves
The following figures provide typical characteristics for the 12V TLynxTM at 0.69Vo and at 25oC.
EFFICIENCY, (%)
70
75
80
85
90
0 5 10 15 20
Vin=10V
Vin=7V
Vin=5V
OUTPUT CURRENT, Io (A)
4
6
8
10
12
14
16
18
20
22
35 45 55 65 75 85 95 105
Standard Part
(85°C)
Rugg edi zed (D)
Part
(
105
°
C
)
NC 0.5m/s
(100LFM)
1m/s
(200LFM)
2m/s
(400LFM)
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 1. Converter Efficiency versus Output Current. Figure 2. Derating Output Current versus Ambient
Temperature and Airflow. (Ruggedized Part is Discontinued)
OUTPUT VOLTAGE
VO (V) (10mV/div)
OUTPUT CURRENT, OUTPUT VOLTAGE
IO (A) (5Adiv) VO (V) (200mV/div)
TIME, t (1s/div) TIME, t (20s /div)
Figure 3. Typical output ripple and noise (VIN = 12V, Io =
Io,max).
Figure 4. Transient Response to Dynamic Load Change
from 0% to 50% to 0%.
ON/OFF VOLTAGE OUTPUT VOLTAGE
VON/OFF (V) (5V/div) VO (V) (200mV/div)
OUTPUT VOLTAGE INPUT VOLTAGE
VO (V) (1V/div) VIN (V) (5V/div)
TIME, t (2 ms/div) TIME, t (1 ms/div)
Figure 5. Typical Start-up Using On/Off Voltage (Io = Io,max). Figure 6. Typical Start-up Using Input Voltage (VIN = 10V, Io
= Io,max).
GE Data Sheet
12V TLynxTM 20A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 20A Output Current
December 5, 2019 ©2017 General Electric Corporation. All rights
reserved. Page 8
Characteristic Curves (continued)
The following figures provide typical characteristics for the 12V TLynxTM at 1.2Vo and at 25oC.
EFFICIENCY, (%)
70
75
80
85
90
95
0 5 10 15 20
Vin=14V
Vin=12V
Vin=4.5V
OUTPUT CURRENT, Io (A)
4
6
8
10
12
14
16
18
20
22
25 35 45 55 65 75 85 95 105
Stan d ard P art
(
85°C
)
Ruggedized (D)
Part
(
105
°
C
)
NC
0.5m/s
(100LFM)
1m/s
(200LFM)
2m/s
(400LFM)
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. Ruggedized part is discontinued
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT CURRENT, OUTPUT VOLTAGE
IO (A) (5Adiv) VO (V) (200mV/div)
TIME, t (1s/div) TIME, t (20s /div)
Figure 9. Typical output ripple and noise (VIN = 12V, Io =
Io,max).
Figure 10. Transient Response to Dynamic Load Change
from 0% to 50% to 0%.
ON/OFF VOLTAGE OUTPUT VOLTAGE
VON/OFF (V) (5V/div) VO (V) (500mV/div)
OUTPUT VOLTAGE INPUT VOLTAGE
VO (V) (1V/div) VIN (V) (5V/div)
TIME, t (1 ms/div) TIME, t (1 ms/div)
Figure 11. Typical Start-up Using On/Off Voltage (Io = Io,max). Figure 12. Typical Start-up Using Input Voltage (VIN = 12V,
Io = Io,max).
GE Data Sheet
12V TLynxTM 20A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 20A Output Current
December 5, 2019 ©2017 General Electric Corporation. All rights
reserved. Page 9
Characteristic Curves (continued)
The following figures provide typical characteristics for the 12V TLynxTM at 1.8Vo and at 25oC.
EFFICIENCY, (%)
70
75
80
85
90
95
0 5 10 15 20
Vin=14V
Vin=12V
Vin=4.5V
OUTPUT CURRENT, Io (A)
4
6
8
10
12
14
16
18
20
22
25 35 45 55 65 75 85 95 105
Standard Part
(
85°C
)
Ruggedized (D)
Part
(
105
°
C
)
NC
0.5m/s
(100LFM)
1m/s
(200LFM)
2m/s
(400LFM)
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. Ruggedized part is discontinued
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT CURRENT, OUTPUT VOLTAGE
IO (A) (5Adiv) VO (V) (200mV/div)
TIME, t (1s/div) TIME, t (20s /div)
Figure 15. Typical output ripple and noise (VIN = 12V, Io =
Io,max).
Figure 16. Transient Response to Dynamic Load Change
from 0% to 50% to 0%.
ON/OFF VOLTAGE OUTPUT VOLTAGE
VON/OFF (V) (5V/div) VO (V) (500mV/div)
OUTPUT VOLTAGE INPUT VOLTAGE
VO (V) (1V/div) VIN (V) (5V/div)
TIME, t (1 ms/div) TIME, t (1 ms/div)
Figure 17. Typical Start-up Using On/Off Voltage (Io = Io,max). Figure 18. Typical Start-up Using Input Voltage (VIN = 12V,
Io = Io,max).
GE Data Sheet
12V TLynxTM 20A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 20A Output Current
December 5, 2019 ©2017 General Electric Corporation. All rights
reserved. Page 10
Characteristic Curves (continued)
The following figures provide typical characteristics for the 12V TLynxTM at 2.5Vo and at 25oC.
EFFICIENCY, (%)
70
75
80
85
90
95
100
0 5 10 15 20
Vin=14VVin=12V
Vin=4.5V
OUTPUT CURRENT, Io (A)
4
6
8
10
12
14
16
18
20
22
25 35 45 55 65 75 85 95 105
Standard Part
(
85°C
)
Rug gedized (D)
Part
105
°
C
)
NC
0.5m/s
(100LFM)
1m/s
(200LFM)
2m/s
(400LFM)
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 19. Converter Efficiency versus Output Current. Figure 20. Derating Output Current versus Ambient
Temperature and Airflow. Ruggedized part is discontinued
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT CURRENT, OUTPUT VOLTAGE
IO (A) (5Adiv) VO (V) (200mV/div)
TIME, t (1s/div) TIME, t (20s /div)
Figure 21. Typical output ripple and noise (VIN = 12V, Io =
Io,max).
Figure 22. Transient Response to Dynamic Load Change
from 0% to 50% to 0%.
ON/OFF VOLTAGE OUTPUT VOLTAGE
VON/OFF (V) (5V/div) VO (V) (1V/div)
OUTPUT VOLTAGE INPUT VOLTAGE
VO (V) (1V/div) VIN (V) (5V/div)
TIME, t (1 ms/div) TIME, t (1 ms/div)
Figure 23. Typical Start-up Using On/Off Voltage (Io = Io,max). Figure 24. Typical Start-up Using Input Voltage (VIN = 12V,
Io = Io,max).
GE Data Sheet
12V TLynxTM 20A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 20A Output Current
December 5, 2019 ©2017 General Electric Corporation. All rights
reserved. Page 11
Characteristic Curves (continued)
The following figures provide typical characteristics for the 12V TLynxTM at 3.3Vo and at 25oC.
EFFICIENCY, (%)
70
75
80
85
90
95
100
0 5 10 15 20
Vin=14VVin=12V
Vin=4.5V
OUTPUT CURRENT, Io (A)
4
6
8
10
12
14
16
18
20
22
25 35 45 55 65 75 85 95 105
Stan dard Part
(
85°C
)
Ruggedized (D)
Part
(
105
°
C
)
NC
0.5m/s
(100LFM)
1m/s
(200LFM)
2m/s
(400LFM)
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 25. Converter Efficiency versus Output Current. Figure 26. Derating Output Current versus Ambient
Temperature and Airflow. Ruggedized part is discontinued
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT CURRENT, OUTPUT VOLTAGE
IO (A) (5Adiv) VO (V) (200mV/div)
TIME, t (1s/div) TIME, t (20s /div)
Figure 27. Typical output ripple and noise (VIN = 12V, Io =
Io,max).
Figure 28. Transient Response to Dynamic Load Change
from 0% 50% to 0%.
ON/OFF VOLTAGE OUTPUT VOLTAGE
VON/OFF (V) (2V/div) VO (V) (1V/div)
OUTPUT VOLTAGE INPUT VOLTAGE
VO (V) (1V/div) VIN (V) (5V/div)
TIME, t (1ms/div) TIME, t (1ms/div)
Figure 29. Typical Start-up Using On/Off Voltage (Io = Io,max). Figure 30. Typical Start-up Using Input Voltage (VIN = 12V,
Io = Io,max).
GE Data Sheet
12V TLynxTM 20A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 20A Output Current
December 5, 2019 ©2017 General Electric Corporation. All rights
reserved. Page 12
Characteristic Curves (continued)
The following figures provide typical characteristics for the 12V TLynxTM at 5Vo and at 25oC.
EFFICIENCY, (%)
70
75
80
85
90
95
100
0 5 10 15 20
Vin=14V
Vin=12V
Vin=7V
OUTPUT CURRENT, Io (A)
4
6
8
10
12
14
16
18
20
22
25 35 45 55 65 75 85 95 105
Standard Part
(
85
°
C
)
Ruggedized (D)
Part (105
°
C)
NC
0.5m/s
(100LFM)
1m/s
(200LFM)
2m/s
(400LFM)
1.5m/s
(300LFM)
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. Ruggedized part is discontinued
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT CURRENT, OUTPUT VOLTAGE
IO (A) (5Adiv) VO (V) (500mV/div)
TIME, t (1s/div) TIME, t (20s /div)
Figure 32. Typical output ripple and noise (VIN = 12V, Io =
Io,max).
Figure 35. Transient Response to Dynamic Load Change
from 0% 50% to 0%.
ON/OFF VOLTAGE OUTPUT VOLTAGE
VON/OFF (V) (5V/div) VO (V) (2V/div)
OUTPUT VOLTAGE INPUT VOLTAGE
VO (V) (1V/div) VIN (V) (5V/div)
TIME, t (1 ms/div) TIME, t (1ms/div)
Figure 33. Typical Start-up Using On/Off Voltage (Io = Io,max). Figure 36. Typical Start-up Using Input Voltage (VIN = 12V,
Io = Io,max).
GE Data Sheet
12V TLynxTM 20A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 20A Output Current
December 5, 2019 ©2017 General Electric Corporation. All rights
reserved. Page 13
Test Configurations
TO OSCILLOSCOPE CURRENT PROBE
LTEST
1μH
BATTERY
CS 1000μF
Electrolytic
E.S.R.<0.1
@ 20°C 100kHz
2x100μF
Tantalum
VIN(+)
COM
NOTE: Measure input reflected ripple current with a simulated
source inductance (LTEST) of 1μH. Capacitor CS offsets
possible battery impedance. Measure current as shown
above.
CIN
Figure 37. Input Reflected Ripple Current Test Setup.
NOTE: All voltage measurements to be taken at the module
terminals, as shown above. If sockets are used then
Kelvin connections are required at the module terminals
to avoid measurement errors due to socket contact
resistance.
Vo+
COM
0.1u F
RESISTIVE
LOAD
SCOPE U SING
BNC SOCKET
COPPER STRIP
GROUND PLANE
10uF
Figure 38. Output Ripple and Noise Test Setup.
VO
COM
VIN(+)
COM
RLOAD
Rco ntac t Rdistribution
Rco ntac t Rdistribution
Rco ntac t
Rco ntac t
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 39. Output Voltage and Efficiency Test Setup.
=
VO. IO
VIN. IIN
x 100 %
Efficiency
Design Considerations
Input Filtering
The 12V 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, low-ESR polymer and
ceramic capacitors are recommended at the input of the
module.
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 20A of load current with 2x22 µF or 3x22 µF ceramic
capacitors and an input of 12V.
Input Ripple Voltage (mVp-p)
0
50
100
150
200
250
300
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
2x22uF
3x22 uF
Output Voltage (Vdc)
Figure 40. Input ripple voltage for various output
voltages with 2x22 µF or 3x22 µF ceramic capacitors at
the input (20A load). Input voltage is 12V.
Output Filtering
The 12V 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 a full load current of 20A. For stable
operation of the module, limit the capacitance to less than
the maximum output capacitance as specified in the
electrical specification table. Optimal performance of the
module can be achieved by using the Tunable LoopTM
GE Data Sheet
12V TLynxTM 20A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 20A Output Current
December 5, 2019 ©2017 General Electric Corporation. All rights
reserved. Page 14
feature described later in this data sheet.
0
10
20
30
40
0.5 1.5 2.5 3.5 4.5 5.5
Output Voltage (Volts)
Ripple (mVp-p)
1x10uF External Cap
1x47uF External Cap
2x47uF External Cap
4x47uF External Cap
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 (20A load). Input voltage is 12V.
Safety Considerations
For safety agency approval the power module must be installed in
compliance with the spacing and separation requirements of the
end-use safety agency standards, i.e., UL 60950-1, 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 20 A in the positive input lead.
Feature Descriptions
Remote Enable
The 12V 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 24.9k 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 value for Rpullup is 20k.
23K
ION/OFF
24.9K
Q1
GND
ON/OFF
VIN+
_
+
PWM Enable
V
ON/OFF
MODULE
Rpullup
22K
Q3
22K
12.1K
Q2
22K
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.
24.9K
Q1
ON/OFF
VIN+
GND _
+
PWM Enable
VON/OFF
MODULE
I
Rpullup1
ON/OFF
22K
Q2
23K
12.1K
GE Data Sheet
12V TLynxTM 20A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 20A Output Current
December 5, 2019 ©2017 General Electric Corporation. All rights
reserved. Page 15
Figure 43. Circuit configuration for using negative On/Off logic.
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.
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 135oC is exceeded at the thermal
reference point Tref . The thermal shutdown is not intended as a
guarantee that the unit will survive temperatures beyond its rating.
Once the unit goes into thermal shutdown it will then wait to cool
before attempting to restart.
Input Undervoltage Lockout
At input voltages below the input undervoltage lockout limit, the
module operation is disabled. The module will begin to operate at
an input voltage above the undervoltage lockout turn-on threshold.
Output Voltage Programming
The output voltage of the 12V 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.
0
2
4
6
8
10
12
14
16
0.511.522.533.544.555.56
Out put Voltage (V)
Input Voltage (v)
Lower Limit
Upper Limit
Figure 44. Output Voltage vs. Input Voltage Set Point Area plot
showing limits where the output voltage can be set for different
input voltages.
Without an external resistor between Trim and GND pins, the
output of the module will be 0.69Vdc. To calculate the value of the
trim resistor, Rtrim for a desired output voltage, use the following
equation:

k
Vo
Rtrim 69.0
9.6
Rtrim is the external resistor in kΩ
Vo is the desired output voltage.
Table 1 provides Rtrim values required for some common
output voltages.
Table 1
VO, set (V) Rtrim (KΩ)
0.7 690
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 TLynxTM power modules have a Remote Sense
feature to minimize the effects of distribution losses by
regulating the voltage between the S+ and S– pins. The
voltage between the S– and GND pins of the module must
not drop below –0.2V. If Remote Sense is being used, the
voltage between S+ and S– 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 S+ pin to the VOUT pin and the S–
pin to the GND pin.
VO(+)
TRIM
GND
Rtr i m
LOA D
VIN
(+)
ON/OFF
S+
Figure 45. Circuit configuration for programming output
voltage using an external resistor.
Voltage Margining
Output voltage margining can be implemented in the 12V
TLynxTM modules by connecting a resistor, Rmargin-up, from the
Trim pin to the ground pin for margining-up the output
voltage and by connecting a resistor, Rmargin-down, from the
Trim pin to output pin for margining-down. Figure 46 shows
the circuit configuration for output voltage margining. The
GE Data Sheet
12V TLynxTM 20A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 20A Output Current
December 5, 2019 ©2017 General Electric Corporation. All rights
reserved. Page 16
POL Programming Tool, available at www.lineagepower.com under
the Design Tools section, also calculates the values of Rmargin-up and
Rmargin-down for a specific output voltage and % margin. Please
consult your local Lineage Power Technical Representative for
additional details.
Vo
MODULE
GND
Trim
Q1
Rtrim
Rmargin-up
Q2
Rmargin-down
Figure 46. Circuit Configuration for margining Output voltage
Monotonic Start-up and Shutdown
The 12V TLynxTM modules have monotonic start-up and shutdown
behavior for any combination of rated input voltage, output current
and operating temperature range.
Startup into Pre-biased Output
The 12V Pico TLynxTM 20A 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.
Output Voltage Sequencing
The 12V 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 VIN or leave it unconnected.
When an analog voltage is applied to the SEQ pin, the output
voltage tracks this voltage until the output reaches the set-point
voltage. The final value of the SEQ voltage must be set higher than
the set-point voltage of the module. The output voltage follows the
voltage on the SEQ pin on a one-to-one volt basis. By connecting
multiple modules together, multiple modules can track their output
voltages to the voltage applied on the SEQ pin.
For proper voltage sequencing, first, input voltage is applied to the
module. The On/Off pin of the module is left unconnected (or tied to
GND for negative logic modules or tied to VIN for positive logic
modules) so that the module is ON by default. After applying input
voltage to the module, a minimum 10msec delay is required before
applying voltage on the SEQ pin. During this time, a voltage of
50mV (± 20 mV) is maintained on the SEQ pin. This delay gives the
module enough time to complete its internal power-up soft-start
cycle. During the delay time, the SEQ pin should be held close to
ground (nominally 50mV ± 20 mV). This is required to keep the
internal op-amp out of saturation thus preventing output
overshoot during the start of the sequencing ramp. By
selecting resistor R1 (see fig. 47) according to the following
equation
05.0
24950
1
IN
V
R ohms,
the voltage at the sequencing pin will be 50mV when the
sequencing signal is at zero.
R1
GND
VIN+
SEQ
+
-
OUT
10K
499K
MODULE
Figure 47. Circuit showing connection of the sequencing
signal to the SEQ pin.
After the 10msec delay, an analog voltage is applied to the
SEQ pin and the output voltage of the module will track this
voltage on a one-to-one volt bases until the output reaches
the set-point voltage. To initiate simultaneous shutdown of
the modules, the SEQ pin voltage is lowered in a controlled
manner. The output voltage of the modules tracks the
voltages below their set-point voltages on a one-to-one
basis. A valid input voltage must be maintained until the
tracking and output voltages reach ground potential.
When using the EZ-SEQUENCETM feature to control start-up
of the module, pre-bias immunity during start-up is disabled.
The pre-bias immunity feature of the module relies on the
module being in the diode-mode during start-up. When
using the EZ-SEQUENCETM feature, modules goes through an
internal set-up time of 10msec, and will be in synchronous
rectification mode when the voltage at the SEQ pin is applied.
This will result in the module sinking current if a pre-bias
voltage is present at the output of the module. When pre-
bias immunity during start-up is required, the EZ-
SEQUENCETM feature must be disabled. For additional
guidelines on using the EZ-SEQUENCETM feature please refer
to Application Note AN04-008 “Application Guidelines for
Non-Isolated Converters: Guidelines for Sequencing of
Multiple Modules”, or contact the Lineage Power Technical
representative for additional information.
Power Good
The 12V TLynxTM modules provide a Power Good (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.
GE Data Sheet
12V TLynxTM 20A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 20A Output Current
December 5, 2019 ©2017 General Electric Corporation. All rights
reserved. Page 17
The PGOOD terminal should be connected through a pullup resistor
(suggested value 100K) to a source of 6VDC or less.
Synchronization
The 12V TLynxTM series of modules can be synchronized 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 LoopTM
The 12V TLynxTM 20A modules have a new feature that optimizes
transient response of the module called Tunable LoopTM.
External capacitors are usually added to the output of the module
for two reasons: to reduce output ripple and noise (see Figure 41)
and to reduce output voltage deviations from the steady-state
value in the presence of dynamic load current changes. Adding
external capacitance however affects the voltage control loop of
the module, typically causing the loop to slow down with sluggish
response. Larger values of external capacitance could also cause
the module to become unstable.
The Tunable LoopTM allows the user to externally adjust the voltage
control loop to match the filter network connected to the output of
the module. The Tunable LoopTM is implemented by connecting a
series R-C between the SENSE and TRIM pins of the module, as
shown in Fig. 47. This R-C allows the user to externally adjust the
voltage loop feedback compensation of the module.
MODULE
VOUT
SENSE
TRIM
GND
RTUNE
CTUNE
RTrim
C O
Figure. 48. Circuit diagram showing connection of RTUME and
CTUNE to tune the control loop of the module.
Recommended values of RTUNE and CTUNE for different output
capacitor combinations are given in Tables 2 and 3. Table 2 shows
the recommended values of RTUNE and CTUNE for different values of
ceramic output capacitors up to 940F that might be needed for an
application to meet output ripple and noise requirements. Selecting
RTUNE and CTUNE according to Table 2 will ensure stable operation of
the module.
In applications with tight output voltage limits in the presence of
dynamic current loading, additional output capacitance will be
required. Table 3 lists recommended values of RTUNE and CTUNE in
order to meet 2% output voltage deviation limits for some common
output voltages in the presence of a 10A to 20A step change (50%
of full load), with an input voltage of 12V.
Please contact your Lineage Power technical representative to
obtain more details of this feature as well as for guidelines on how
to select the right value of external R-C to tune the module
for best transient performance and stable operation for
other output capacitance values or input voltages other than
12V.
Table 2. General recommended values of of RTUNE and CTUNE
for Vin=12V and various external ceramic capacitor
combinations.
Co 1x47F2x47F 4x47F 10x47F20x47F
RTUNE 240 240 240 150 150
CTUNE 1500pF 2700pF 5600pF 12nF 15nF
Table 3. General Recommended values of RTUNE and CTUNE
to obtain transient deviation of 2% of Vout for a 10A step
load with Vin=12V.
Vo 5V 3.3V 2.5V 1.8V 1.2V 0.69V
Co 6x47F
5x47F
+
330F
Polymer
2x
330F
Polymer
6x47F +
2x330F
Polymer
6x47F +
4x330F
Polymer
12
x330F
Polymer
RTUNE 220 220 200 150 150 150
CTUNE 5600pF 7500pF 18nF 33nF 120nF 120nF
V99mV 66mV 50mV 36mV 24mV 12mV
GE Data Sheet
12V TLynxTM 20A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 20A Output Current
December 5, 2019 ©2017 General Electric Corporation. All rights
reserved. Page 18
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 long axis.
A
i
r
flow
x
Power Module
W
ind Tunnel
PWBs
12.7_
(0.50)
76.2_
(3.0)
Probe Location
for measuring
airflow and
ambient
temperature
25.4_
(1.0)
Figure 49. Thermal Test Setup.
The thermal reference points, Tref used in the specifications are also
shown in Figure 50. For reliable operation the temperatures at
these points should not exceed 125oC. The output power of the
module should not exceed the rated power of the module (Vo,set x
Io,max).
Please refer to the Application Note “Thermal Characterization
Process For Open-Frame Board-Mounted Power Modules” for a
detailed discussion of thermal aspects including maximum device
temperatures.
Figure 50. Preferred airflow direction and location of hot-
spot of the module (Tref).
GE Data Sheet
12V TLynxTM 20A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 20A Output Current
December 5, 2019 ©2017 General Electric Corporation. All rights
reserved. Page 19
Example Application Circuit
Requirements:
Vin: 12V
Vout: 1.8V
Iout: 15A max., worst case load transient is from 10A to 15A
Vout: 1.5% of Vout (36mV) for worst case load transient
Vin, ripple 1.5% of Vin (180mV, p-p)
MODULE
TRIM
VOUT
S+
RTUNE
GND
CTUNE
RTrim
CO1
VIN
+
CI2 CI1
Vout+Vin+
Q1
ON/OFF
S-
+
CO2
CI1 2 x 22F/16V ceramic capacitor (e.g. Murata GRM32ER61C226KE20)
CI2 200F/16V bulk electrolytic
CO1 5 x 47F/6.3V ceramic capacitor (e.g. Murata GRM31CR60J476ME19)
CO2 2 x 330F/6.3V Polymer (e.g. Sanyo, Poscap)
CTune 22nF ceramic capacitor (can be 1206, 0805 or 0603 size)
RTune 150 ohms SMT resistor (can be 1206, 0805 or 0603 size)
RTrim 6.19k SMT resistor (can be 1206, 0805 or 0603 size, recommended tolerance of 0.1%)
MODULE
GE Data Sheet
12V TLynxTM 20A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 20A Output Current
December 5, 2019 ©2017 General Electric Corporation. All rights
reserved. Page 20
Mechanical Outline
Dimensions are in millimeters and (inches).
Tolerances: x.xx in. 0.02 in. (x.x mm 0.5 mm) [unless otherwise indicated]
x.xxx in 0.010 in. (x.xx mm 0.25 mm)
Side View
Top View
GE Data Sheet
12V TLynxTM 20A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 20A Output Current
December 5, 2019 ©2017 General Electric Corporation. All rights
reserved. Page 21
Recommended Pad Layout
Dimensions are in millimeters and (inches).
Tolerances: x.xx in. 0.02 in. (x.x mm 0.5 mm) [unless otherwise indicated]
x.xxx in 0.010 in. (x.xx mm 0.25 mm)
PIN FUNCTION
1 ON/OFF
2 VIN
3 SEQ
4 GND
5 VOUT
6 TRIM
7 S+
8 S-
9 PGOOD
10 SYNC
GE Data Sheet
12V TLynxTM 20A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 20A Output Current
December 5, 2019 ©2017 General Electric Corporation. All rights
reserved. Page 22
Packaging Details
The 12V 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: 24.00 mm (0.945”)
GE Data Sheet
12V TLynxTM 20A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 20A Output Current
December 5, 2019 ©2017 General Electric Corporation. All rights
reserved. Page 23
Surface Mount Information
Pick and Place
The 12V 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 300oC. The label also
carries product information such as product code, serial number
and the location of manufacture.
Nozzle Recommendations
The module weight has been kept to a minimum by using open
frame construction. Variables such as nozzle size, tip style, vacuum
pressure and placement speed should be considered to optimize
this process. The minimum recommended inside nozzle diameter
for reliable operation is 3mm. The maximum nozzle outer diameter,
which will safely fit within the allowable component spacing, is 7
mm.
Bottom Side / First Side Assembly
This module is not recommended for assembly on the bottom side
of a customer board. If such an assembly is attempted,
components may fall off the module during the second reflow
process. If assembly on the bottom side is planned, please contact
Lineage Power for special manufacturing process instructions
Lead Free Soldering
The 12V 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). For questions regarding LGA, solder volume; please
contact Lineage Power for special manufacturing process
instructions. The recommended linear reflow profile using Sn/Ag/Cu
solder is shown in Fig. 50. Soldering outside of the recommended
profile requires testing to verify results and performance.
MSL Rating
The 12V TLynxTM modules have a MSL rating of 2.
Storage and Handling
The recommended storage environment and handling procedures
for moisture-sensitive surface mount packages is detailed in J-STD-
033 Rev. 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.
Pe r J-STD-020 Re v. C
0
50
100
150
200
250
300
Reflow Time (Seconds)
Reflow Temp (°C)
Hea ting Zone
1°C/Second
Pe ak Temp 260°C
* Min. Time Above 235°C
15 Seco nds
*Time Above 217°C
60 Sec o nds
Cooling
Zone
Figure 50. 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).
GE Data Sheet
12V TLynxTM 20A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 20A 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:
+49.89.878067-280
www.gecriticalpower.com
GE Critical Power reserves the right to make changes to the product(s) or information contained herein without notice, and no
liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s)
or information.
December 5, 2019 ©2017 General Electric Company. All International rights reserved. Version 1.3
Ordering Information
Please contact your Lineage Power Sales Representative for pricing, availability and optional features.
Table 6. Device Codes
Device Code Input
Voltage Range
Output
Voltage
Output
Current
On/Off
Logic Comcodes
APTS020A0X3-SRZ 4.5 – 14Vdc 0.69 – 5.5Vdc 20A Negative CC109127115
APTS020A0X43-SRZ 4.5 – 14Vdc 0.69 – 5.5Vdc 20A Positive CC109127123
Table 7. Coding Scheme
TLynx
family
Sequencing
feature.
Input
voltage
range
Output
current
Output
voltage
On/Off
logic
Options ROHS
Compliance
AP T S 020A0 X 4 -SR Z
T = with Seq.
X = w/o Seq.
S = 4.5 -
14V
20.0A X =
programmable
output
4 =
positive
No entry =
negative
S = Surface
Mount
R = Tape&Reel
Z = ROHS6