6.0Vdc – 14Vdc input; 0.8 to 3.63Vdc Output; 30A Output Current
RoHS Compliant
Applications
Distributed power architectures
Intermediate bus voltage applications
Telecommunications equipment
Servers and storage applications
Networking equipment
Vin+Vout+
VIN
MODULE
Cin
ON/OFF
GND
VOUT
SENSE
TRIM
RTUNE
CTUNE
RTrim
Co
: Non-Isolated DC-DC Power Modules:
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)
Compliant to IPC-9592 (September 2008),
Category 2, Class II
Delivers up to 30A of output current
High efficiency: 92.9% @ 3.3V full load
(V
IN=12Vdc)
Input voltage range from 6 to 14Vdc
•Output voltage programmable from 0.8 to
3.63Vdc
Small size and low profile:
33.0 mm x 13.46 mm x 10.00 mm
(1.30 in. x 0.53 in. x 0.39 in.)
Monotonic start-up
Startup into pre-biased output
Output voltage sequencing (EZ-SEQUENCE
Remote On/Off
Remote Sense
Over current and Over temperature protection
Option- Parallel operation with active current
sharing
Wide operating temperature range (-40°C to
85°C)
UL* 60950 Recognized, CSA
60950-00 Certified, and VDE
rd
3
edition) Licensed
ISO** 9001 and ISO 14001 certified
manufacturing facilities
†
C22.2 No.
‡
0805 (EN60950-1
TM
)
Description
The 12V Mega TLynxTM power modules are non-isolated dc-dc converters that can deliver up to 30A of output
current. These modules operate over a wide range of input voltage (V
regulated output voltage from 0.8Vdc to 3.63Vdc, programmable via an external resistor. Features include remote
On/Off, adjustable output voltage, over current and over temperature protection, output voltage sequencing and
paralleling with active current sharing (-P versions). A new feature, the Tunable Loop
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 register ed trademark of Underwriters Laboratories, Inc.
†
CSA is a regist ered trademark of Canadian Standards Association.
‡
VDE is a t rademark of Verband Deutscher Elektrotechniker e.V.
** ISO is a registered trademark of the International O rganization of Standards
= 6Vdc-14Vdc) and provide a precisely
IN
TM
, allows the user to optimize
Document No: DS09-003 ver. 1.13
PDF Name: APTS030A0X3_ds.pdf
Data Sheet
May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A outputcurrent
12V Mega TLynxTM: Non-Isolated DC-DC Power Modules:
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
Continuous All V
IN
-0.3 15 Vdc
Sequencing pin voltage All VsEQ -0.3 15 Vdc
Operating Ambient Temperature All T
A
-40 85 °C
(see Thermal Considerations section)
Storage Temperature All T
stg
-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 6.0 12 14 Vdc
Maximum Input Current All I
(VIN= V
IN,min
, VO= V
O,set, IO=IO, max
)
Inrush Transient All
Input No Load Current V
(VIN = 12.0Vdc, IO = 0, module enabled) V
= 0.8 Vdc I
O,set
= 3.3Vdc I
O,set
Input Stand-by Current All I
IN,max
2
t
I
IN,No load
265 mA
IN,No load
20 mA
IN,stand-by
(VIN = 12.0Vdc, module disabled)
Input Reflected Ripple Current, peak-topeak
(5Hz to 20MHz, 1μH source impedance;
V
=6.0V to 14.0V, IO= I
IN
; See Figure 1)
Omax
All 100 mAp-p
Input Ripple Rejection (120Hz) All 50 dB
19 Adc
1
91 mA
2
A
s
LINEAGEPOWER2
Data Sheet
May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A outputcurrent
12V Mega TLynxTM: Non-Isolated DC-DC Power Modules:
Electrical Specifications (continued)
Parameter Device Symbol Min Typ Max Unit
Output Voltage Set-point All V
(VIN=V
IN,nom
, IO=I
, T
=25°C)
O, nom
ref
Output Voltage
(Over all operating input voltage, resistive load,
and temperature conditions until end of life)
All V
Adjustment Range
O, set
O, set
-1.5
⎯
+1.5 % V
–3.0
⎯
+3.0 % V
O, set
O, set
Selected by an external resistor All 0.8 3.63 Vdc
Output Regulation
Line (VIN=V
Load (IO=I
Temperature (T
IN, min
O, min
to V
to I
ref=TA, min
) All
IN, max
) All
O, max
to T
) All ⎯ 0.5 1 % V
A, max
⎯ ⎯
⎯ ⎯
10 mV
10 mV
O, set
Output Ripple and Noise on nominal output
(VIN=V
C
OUT
Peak-to-Peak (5Hz to 20MHz bandwidth) All
External Capacitance1
Without the Tunable Loop
ESR ≥ 1 mΩAll C
With the Tunable Loop
ESR ≥ 0.15 mΩ All C
ESR ≥ 10 mΩ All C
Output Current
(VIN = 6 to 14Vdc) All I
Output Current Limit Inception (Hiccup Mode) All I
Output Short-Circuit Current All I
(VO≤250mV) ( Hiccup Mode )
Efficiency V
VIN=12Vdc, TA=25°C V
IO=I
V
V
Switching Frequency, Fixed All f
IN, nom
and IO=I
O, min
to I
O, max
= 0.1μF // 47 μF ceramic capacitors)
50 mV
⎯
⎯
⎯
3.5
83.0
87.1
90.1
91.8
92.9
300
200 μF
1000 μF
10000 μF
⎯
%
%
%
%
%
⎯
pk-pk
omax
Adc
kHz
O, max , VO
TM
TM
= V
V
O,set
= 0.8dc η
O,set
= 1.2Vdc η
O,set
= 1.8Vdc η
O,set
= 2.5Vdc η
O,set
= 3.3Vdc η
O,set
O, max
O, max
O, max
o
O, lim
O, s/c
sw
⎯
0
0
0
0 30 Adc
140 % I
⎯
⎯
General Specifications
Parameter Min Typ Max Unit
Calculated MTBF (VIN=12V, VO=2.5Vdc, IO= 0.8I
T
=40°C, 200LFM) Per Telcordia Issue 2 Method 1 Case 3
A
Weight
O, max
,
⎯
4,443,300
7.04 (0.248)
Hours
⎯
g (oz.)
LINEAGEPOWER3
Data Sheet
May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A outputcurrent
12V Mega TLynxTM: Non-Isolated DC-DC Power Modules:
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)
Logic High (On/Off pin open – Module OFF)
Input High Current All IIH
Input High Voltage All VIH
Logic Low (Module ON)
Input Low Current All IIL
Input Low Voltage All VIL
Turn-On Delay and Rise Times
IN, min
to V
; open collector or equivalent,
IN, max
25
3.0
200 µA
⎯
V
⎯
IN, max
⎯⎯
-0.3
200 µA
1.2 V
⎯
V
(VIN=V
Case 1: On/Off input is enabled and then
IN, nom
, IO=I
to within ±1% of steady state)
O, max , VO
All Tdelay ― 2.5 5 msec
input power is applied (delay from instant at
which V
Case 2: Input power is applied for at least one second and
IN
= V
until Vo = 10% of Vo, set)
IN, min
All Tdelay ― 2.5 5 msec
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
o = 10% of Vo, set)
All Trise
2 10 msec
10% of Vo, set to 90% of Vo, set)
Output voltage overshoot 3.0 % V
IO = I
Remote Sense Range All
Over temperature Protection All T
(See Thermal Consideration section)
O, max
; V
IN, min
– V
, TA = 25 oC
IN, max
ref
⎯⎯
125
⎯
0.5 V
⎯
°C
O, set
Sequencing Slew rate capability All dVSEQ/dt — 2 V/msec
(V
to V
IN, min
Sequencing Delay time (Delay from V
IN, max
; I
to I
O, min
VSEQ < Vo)
O, max
IN, min
to application of voltage on SEQ pin) All TsEQ-delay 10 msec
Tracking Accuracy Power-up (2V/ms) All VSEQ –Vo 100 200 mV
Power-down (1V/ms) VSEQ –Vo 200 400 mV
(V
to V
IN, min
Input Undervoltage Lockout
Turn-on Threshold All
Turn-off Threshold All
Forced Load Share Accuracy -P
Number of units in Parallel -P
IN, max
; I
- I
O, min
VSEQ < Vo)
O, max
5.5 Vdc
5.0 Vdc
10 % Io
⎯
5
LINEAGEPOWER4
Data Sheet
OUTPUT
CURRENT
OUTPUT
VOLTAGE
May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A outputcurrent
12V Mega TLynxTM: Non-Isolated DC-DC Power Modules:
Characteristic Curves
The following figures provide typical characteristics for the APTS030A0X3-SRPHZ at 0.8V out and 25oC.
95
90
85
80
75
EFFICIENCY, η (%)
70
051015202530
Vin=6V
Vin=12V
Vin=14V
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 1. Converter Efficiency versus Output Current.
35
30
25
20
15
10
5
OUTPUT CURRENT, Io (A)
0
354555657585
(200LFM)
NC
1m/s
0.5m/s
(100LFM)
Figure 4. Derating Output Current versus Ambient
Temperature and Airflow at 12V in.
(V) (20mV/div)
O
V
OUTPUT VOLTAGE
TIME, t (1μs/div) TIME, t (20μs /div)
Figure 2. Typical output ripple and noise (V
30A,
C
= 0.1μF // 47 μF ceramic capacitors ).
OUT
(V) (5V/div)
ON/OFF
(V) (200mV/div) V
O
OUTPUT VOLTAGE ON/OFF VOLTAGE
V
TIME, t (2ms/div) TIME, t (2ms/div)
IN = 12V, Io =
(V) (200mV/div)
O
,
(A) (5Adiv) V
O
I
Figure 5. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with VIN=12V.
(V) (5V/div)
IN
(V) (200mV/div) V
O
OUTPUT VOLTAGE INPUT VOLTAGE
V
Figure 3. Typical Start-up Using On/Off Voltage (Io =
I
o,max).
Figure 6. Typical Start-up Using Input Voltage (VIN =
14V, Io = Io,max).
LINEAGEPOWER5
Data Sheet
OUTPUT
VOLTAGE
ON/OFF
VOLTAGE
May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A outputcurrent
12V Mega TLynxTM: Non-Isolated DC-DC Power Modules:
Characteristic Curves
The following figures provide typical characteristics for the APTS030A0X3-SRPHZ at 1.2V out and 25oC.
95
90
85
Vin=12V
80
75
Vin=6V
Vin=14V
EFFICIENCY, η (%)
70
051015202530
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 7. Converter Efficiency versus Output Current.
35
30
25
20
15
10
5
0
OUTPUT CURRENT, Io (A)
354555657585
NC
0.5m/s
(100LFM)
Figure 10. Output Current Derating versus Ambient
Temperature and Airflow at 12V in.
1m/s
(200LFM)
(V) (20mV/div)
O
V
OUTPUT VOLTAGE
TIME, t (1μs/div) TIME, t (20μs /div)
Figure 8. Typical output ripple and noise (V
= 30A, C
(V) (5V/div)
ON/OFF
(V) (500mV/div) V
O
V
= 0.1μF // 47 μF ceramic capacitors ).
OUT
TIME, t (2ms/div) TIME, t (2ms/div)
IN = 12V, Io
Figure 9. Typical Start-up Using On/Off Voltage (Io =
Io,max).
(V) (200mV/div)
O
(A) (5Adiv) V
O
I
OUTPUT CURRENT, OUTPUT VOLTAGE
Figure 11. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with VIN=12V.
(V) (5V/div)
IN
(V) (500mV/div) V
O
OUTPUT VOLTAGE INPUT VOLTAGE
V
Figure 12. Typical Start-up Using Input Voltage (VIN =
14V, Io = Io,max).
LINEAGEPOWER6
Data Sheet
OUTPUT
CURRENT
OUTPUT
VOLTAGE
May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A outputcurrent
12V Mega TLynxTM: Non-Isolated DC-DC Power Modules:
Characteristic Curves
The following figures provide typical characteristics for the APTS030A0X3-SRPHZ at 1.8V out and 25oC.
95
90
85
Vin=12V
80
75
Vin=6V
Vin=14V
EFFICIENCY, η (%)
70
051015202530
OUTPUT CURRENT, IO (A)
Figure 13. Converter Efficiency versus Output Current.
35
30
25
20
15
10
5
OUTPUT CURRENT, Io (A)
0
354555657585
NC
2m/s
(400LFM)
0.5m/s
(100LFM)
1.5m/s
(300LFM)
1m/s
(200LFM)
AMBIENT TEMPERATURE, T
Figure 16. Output Current Derating versus Ambient
Temperature and Airflow at 12V in.
A
OC
(V) (20mV/div)
O
V
OUTPUT VOLTAGE
TIME, t (1μs/div)
Figure 14. Typical output ripple and noise (V
= 30A, C
(V) (5V/div)
ON/OFF
(V) (500mV/div) V
O
V
OUTPUT VOLTAGE ON/OFF VOLTAGE
= 0.1μF // 47 μF ceramic capacitors ).
OUT
TIME, t (2ms/div)
IN = 12V, Io
(V) (200mV/div)
O
,
(A) (5Adiv) V
O
I
TIME, t (20μs /div)
Figure 17. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with VIN=12V.
(V) (5V/div)
IN
(V) (500mV/div) V
O
OUTPUT VOLTAGE INPUT VOLTAGE
V
TIME, t (2ms/div)
Figure 15. Typical Start-up Using On/Off Voltage (Io =
Io,max).
Figure 18. Typical Start-up Using Input Voltage (VIN =
14V, Io = Io,max).
LINEAGEPOWER7
Data Sheet
OUTPUT
VOLTAGE
ON/OFF
VOLTAGE
May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A outputcurrent
12V Mega TLynxTM: Non-Isolated DC-DC Power Modules:
Characteristic Curves
The following figures provide typical characteristics for the APTS030A0X3-SRPHZ at 2.5V out and 25oC.
100
95
90
85
80
75
EFFICIENCY, η (%)
70
051015202530
Vin=6V
Vin=12V
Vin=14V
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 19. Converter Efficiency versus Output
Current.
35
30
25
20
15
10
5
OUTPUT CURRENT, Io (A)
0
354555657585
NC
0.5m/s
(100LFM)
1m/s
(200LFM)
1.5m/s
(300LFM)
(400LFM)
Figure 22. Output Current Derating versus Ambient
Temperature and Airflow at 12V in.
2m/s
(V) (20mV/div)
O
V
OUTPUT VOLTAGE
TIME, t (1μs/div) TIME, t (20μs /div)
Figure 20. Typical output ripple and noise (V
= 30A, C
(V) (5V/div)
ON/OFF
(V) (1V/div) V
O
V
= 0.1μF // 47 μF ceramic capacitors).
OUT
TIME, t (2ms/div) TIME, t (2ms/div)
IN = 12V, Io
Figure 21. Typical Start-up Using On/Off Voltage (Io =
Io,max).
(V) (200mV/div)
O
(A) (5Adiv) V
O
I
OUTPUT CURRENT, OUTPUT VOLTAGE
Figure 23. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with VIN=12V.
(V) (5V/div)
IN
(V) (1V/div) V
O
OUTPUT VOLTAGE INPUT VOLTAGE
V
Figure 24. Typical Start-up Using Input Voltage (VIN =
14V, Io = Io,max).
LINEAGEPOWER8
Data Sheet
OUTPUT
VOLTAGE
ON/OFF
VOLTAGE
May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A outputcurrent
12V Mega TLynxTM: Non-Isolated DC-DC Power Modules:
Characteristic Curves
The following figures provide typical characteristics for the APTS030A0X3-SRPHZ at 3.3V out and 25oC.
100
95
90
85
80
75
EFFICIENCY, η (%)
70
051015202530
Vin=6V
Vin=12V
Vin=14V
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 19. Converter Efficiency versus Output
Current.
35
30
25
20
15
10
5
OUTPUT CURRENT, Io (A)
0
020406080
0.5m/s
(100LFM)
NC
1.5m/s
(300LFM)
1m/s
(200LFM)
2m/s
(400LFM)
Figure 22. Output Current Derating versus Ambient
Temperature and Airflow at 12V in.
(V) (20mV/div)
O
V
OUTPUT VOLTAGE
TIME, t (1μs/div) TIME, t (20μs /div)
Figure 20. Typical output ripple and noise (V
= 30A, C
(V) (2V/div)
ON/OFF
(V) (1V/div) V
O
V
= 0.1μF // 47 μF ceramic capacitors).
OUT
TIME, t (2ms/div) TIME, t (2ms/div)
IN = 12V, Io
Figure 21. Typical Start-up Using On/Off Voltage (Io =
Io,max).
(V) (200mV/div)
O
(A) (5Adiv) V
O
I
OUTPUT CURRENT, OUTPUT VOLTAGE
Figure 23. Transient Response to Dynamic Load
Change from 0% to 50% to 0% with VIN=12V.
(V) (5V/div)
IN
(V) (1V/div) V
O
OUTPUT VOLTAGE INPUT VOLTAGE
V
Figure 24. Typical Start-up Using Input Voltage (VIN =
14V, Io = Io,max).
LINEAGEPOWER9
Data Sheet
p
pp
g
(
p
p)
May 4, 2012
12V Mega TLynxTM: Non-Isolated DC-DC Power Modules:
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A outputcurrent
Test Configurations
V
O
CURRENT PROBE
CIN
Min
150μF
SCOPE
VIN(+)
COM
RESISTIVE
LOAD
R
contac tRdistribution
TO OSCILLOSCOPE
L
TEST
1μH
CS 220μF
BATTERY
NOTE: Measure input reflected ripple current with a simulated
E.S.R.<0.1Ω
@ 20°C 100kHz
source induc tanc e (L
possibl e batter y impedanc e. Measure cur rent as shown
above.
) of 1μH. Capacitor CS offsets
TEST
Figure 25. Input Reflected Ripple Current Test
Setup.
COPPER STRIP
V O (+)
1uF .
COM
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.
10uF
GROUND PLANE
Figure 26. Output Ripple and Noise Test Setup.
R
R
contac t
distribution
VIN(+)
Design Considerations
The 12V Mega TLynxTM module should be
connected to a low-impedance source. A highly
inductive source can affect the stability of the
module. An input capacitor 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 ceramic
capacitors are recommended at the input of the
module. Figure 28 shows the input ripple voltage for
various output voltages at 30A of load current with
1x22 µF, 2x22 µF or 2x47 µF ceramic capacitors
and an input of 12V.
400
-
350
300
mV
250
e
200
150
le Volta
100
50
ut Ri
0
In
0.511.522.53
Output Voltage (Vdc)
Figure 28. Input ripple voltage for various
output voltages with 1x22 µF, 2x22 µF or 2x47
µF ceramic capacitors at the input (30A load).
Input voltage is 12V.
Output Filtering
The 12V Mega TLynx modules are designed for low
output ripple voltage and will meet the maximum
1x22uF
2x22uF
2x47uF
output ripple specification with no external
R
V
IN
V
O
LOAD
capacitors. However, additional output filtering may
be required by the system designer for a number of
reasons. First, there may be a need to further
R
distribution
R
contac t
COM
COM
R
contac tRdistribution
reduce the output ripple and noise of the module.
Second, the dynamic response characteristics may
need to be customized to a particular load step
NOTE: All volt age measurement s to be t aken at t he module
terminal s, as sho wn abov e. If s ockets ar e used then
Kelvin conn ections are requi red at the m odule ter minals
to avoid meas uremen t errors du e to socket contact
resistance.
Figure 27. Output Voltage and Efficiency Test
Setup.
V
. I
O
VIN. I
O
IN
x 100 %
Efficiency
=
η
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
ceramic and polymer 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.
Optimal performance of the module can be
achieved by using the Tunable Loop feature
described later in this data sheet.
LINEAGEPOWER10
Data Sheet
May 4, 2012
12V Mega TLynxTM: Non-Isolated DC-DC Power Modules:
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A outputcurrent
140
120
1x10uF Ex ternal Cap
100
80
60
Ripple (mVp-p)
40
20
0
0.511.522.53
1x47uF Ex ternal Cap
2x47uF Ex ternal Cap
4x47uF Ex ternal Cap
Output Voltage (Volts)
Figure 29. Output ripple voltage for various
output voltages with external 1x10 µF, 1x47 µF,
2x47 µF or 4x47 µF ceramic capacitors at the
output (30A 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 2nd Edition,
CSA C22.2 No. 60950-1-07, and VDE 08051+A11:2009-11 (DIN EN60950-1 2nd Edition)
Licensed. The APTS030A0X were tested using a
30A, time delay fuse in the ungrounded input.
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 time-delay fuse with a
maximum rating of 30A in the positive input lead.
Feature Descriptions
Remote On/Off
The 12V Mega TLynxTM power modules feature a
On/Off pin for remote On/Off operation. If not using
the On/Off pin, connect the pin to ground (the
module will be ON). The On/Off signal (V
referenced to ground. The circuit configuration for
remote On/Off operation of the module using the
On/Off pin is shown in Figure 30.
During a Logic High on the On/Off pin (transistor Q1
is OFF), the module remains OFF. The external
resistor R1 should be chosen to maintain 3.0V
minimum on the On/Off pin to ensure that the
module is OFF when transistor Q1 is in the OFF
state. Suitable values for R1 are 4.7K for input
voltage of 12V and 3K for 5Vin. During Logic-Low
when Q1 is turned ON, the module is turned ON.
The On/Off pin can also be used to synchronize the
output voltage start-up and shutdown of multiple
modules in parallel. By connecting On/Off pins of
multiple modules, the output start-up can be
synchronized (please refer to characterization
curves). When On/Off pins are connected together,
all modules will shutdown if any one of the modules
gets disabled due to undervoltage lockout or over
temperature protection
VIN+
R1
I
ON/OFF
GND
ON/OFF
V
ON/OFF
Q1
+
_
.
MODULE
1K
100K
) is
on/off
Thermal SD
PWM Enable
100K
Figure 30. Remote On/Off Implementation
using ON/OFF .
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.
LINEAGEPOWER11
Data Sheet
May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A outputcurrent
12V Mega TLynxTM: Non-Isolated DC-DC Power Modules:
Overtemperature 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
o
125
C is exceeded at the thermal reference point
T
. The thermal shutdown is not intended as a
ref
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 Mega TLynxTM can
be programmed to any voltage from 0.8dc to
3.63Vdc by connecting a resistor (shown as R
trim
in
Figure 31) between Trim and GND pins of the
module. Without an external resistor between Trim
and GND pins, the output of the module will be
0.8Vdc. To calculate the value of the trim resistor,
R
for a desired output voltage, use the following
trim
equation:
8000
R
trim
R
is the external resistor in Ω
trim
Vo
−=8.0
Ω
Vo is the desired output voltage
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.
Table 1 provides Rtrim values required for some
common output voltages. The POL Programming
Tool, available at www.lineagepower.comunder the
Design Tools section, helps determine the required
external trim resistor needed for a specific output
voltage.
Table 1
(V)
Rtrim (KΩ)
V
O, set
0.8 Open
1.0 40
1.2 20
1.5 11.429
1.8 8
2.5 4.706
3.3 3.2
GND
VO(+)
SEN SE
TRIM
LOA D
R
tri m
VIN(+)
ON/OFF
Figure 31. Circuit configuration to program
output voltage using an external resistor.
Remote Sense
The 12V Mega TLynxTM power modules have a
Remote Sense feature to minimize the effects of
distribution losses by regulating the voltage at the
SENSE pin. The voltage between the SENSE pin
and VOUT pin must not exceed 0.5V. Note that the
output voltage of the module cannot exceed the
specified maximum value. This includes the voltage
drop between the SENSE and Vout pins. When the
Remote Sense feature is not being used, connect
the SENSE pin to the VOUT pin.
Voltage Margining
Output voltage margining can be implemented in
the 12V Mega TLynx
resistor, R
margin-up
pin for margining-up the output voltage and by
connecting a resistor, R
to output pin for margining-down. Figure 32 shows
the circuit configuration for output voltage
margining. The POL Programming Tool, available
at www.lineagepower.comunder the Design Tools
section, also calculates the values of R
R
margin-down
for a specific output voltage and %
margin. Please consult your local Lineage Power
technical representative for additional details.
TM
modules by connecting a
, from the Trim pin to the ground
margin-down
, from the Trim pin
and
margin-up
Monotonic Start-up and Shutdown
The 12V Mega TLynx
start-up and shutdown behavior for any combination
of rated input voltage, output current and operating
temperature range.
TM
modules have monotonic
Startup into Pre-biased Output
The 12V Mega TLynxTM 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.
LINEAGEPOWER12
Data Sheet
May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A outputcurrent
12V Mega TLynxTM: Non-Isolated DC-DC Power Modules:
Vo
Rmargin-down
MODULE
Q2
Trim
Rmargin-up
Rtrim
Q1
GND
Figure 32. Circuit Configuration for margining
Output voltage.
Output Voltage Sequencing
The 12V Mega TLynxTM modules include a
sequencing feature, EZ-SEQUENCE
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
IN 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 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 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. This delay gives the module
enough time to complete its internal power-up softstart 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. 33) according to the
following equation
24950
1−=
R
V
05.0
IN
TM
ohms,
that enables
the voltage at the sequencing pin will be 50mV
when the sequencing signal is at zero.
VIN+
499K
R1
SEQ
GND
MODULE
10K
+
OUT
-
Figure 33. 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-SEQUENCE
TM
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-SEQUENCE
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 EZSEQUENCE
additional guidelines on using the EZSEQUENCE
TM
feature must be disabled. For
TM
feature please refer to Application
Note AN04-008 “Application Guidelines for NonIsolated Converters: Guidelines for Sequencing of
Multiple Modules”, or contact the Lineage Power
technical representative for additional information.
Active Load Sharing (-P Option)
For additional power requirements, the 12V Mega
TM
TLynx
parallel option. Up to five modules can be
configured, in parallel, with active load sharing.
power module is also available with a
LINEAGEPOWER13
Data Sheet
May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A outputcurrent
12V Mega TLynxTM: Non-Isolated DC-DC Power Modules:
Good layout techniques should be observed when
using multiple units in parallel. To implement forced
load sharing, the following connections should be
made:
•The share pins of all units in parallel must be
connected together. The path of these
connections should be as direct as possible.
•All remote-sense pins should be connected to
the power bus at the same point, i.e., connect
all the SENSE
(+) pins to the (+) side of the bus.
Close proximity and directness are necessary
for good noise immunity
Some special considerations apply for design of
converters in parallel operation:
•When sizing the number of modules required
for parallel operation, take note of the fact that
current sharing has some tolerance. In
addition, under transient condtions such as a
dynamic load change and during startup, all
converter output currents will not be equal. To
allow for such variation and avoid the likelihood
of a converter shutting off due to a current
overload, the total capacity of the paralleled
system should be no more than 75% of the
sum of the individual converters. As an
example, for a system of four 12V Mega
TM
TLynx
converters in parallel, the total current
drawn should be less that 75% of (4 x 30A) ,
i.e. less than 90A.
•All modules should be turned on and off
together. This is so that all modules come up at
the same time avoiding the problem of one
converter sourcing current into the other
leading to an overcurrent trip condition. To
ensure that all modules come up
simultaneously, the on/off pins of all paralleled
converters should be tied together and the
converters enabled and disabled using the
on/off pin.
•The share bus is not designed for redundant
operation and the system will be non-functional
upon failure of one of the unit when multiple
units are in parallel. In particular, if one of the
converters shuts down during operation, the
other converters may also shut down due to
their outputs hitting current limit. In such a
situation, unless a coordinated restart is
ensured, the system may never properly restart
since different converters will try to restart at
different times causing an overload condition
and subsequent shutdown. This situation can
be avoided by having an external output
voltage monitor circuit that detects a shutdown
condition and forces all converters to shut
down and restart together.
When not using the active load sharing feature,
share pins should be left unconnected.
Tunable Loop
TM
The 12V Mega TLynxTM modules have a new
feature that optimizes transient response of the
module called Tunable Loop
TM
.
External capacitors are usually added to the output
of the module for two reasons: to reduce output
ripple and noise (see Fig. 29) 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 Loop
TM
allows the user to externally
adjust the voltage control loop to match the filter
network connected to the output of the module. The
Tunable Loop
TM
is implemented by connecting a
series R-C between the SENSE and TRIM pins of
the module, as shown in Fig. 34. This R-C allows
the user to externally adjust the voltage loop
feedback compensation of the module.
VOUT
SENSE
RTUNE
MODULE
C O
CTUNE
TRIM
GND
Figure. 34. Circuit diagram showing connection
of R
the module.
Recommended values of R
different output capacitor combinations are given in
Tables 2 and 3. Table 2 shows the recommended
values of R
ceramic output capacitors up to 1000uF that might
be needed for an application to meet output ripple
and noise requirements. Selecting R
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
TUME
and C
TUNE
to tune the control loop of
TUNE
and C
TUNE
RTrim
TUNE
and C
TUNE
for
for different values of
and C
TUNE
TUNE
LINEAGEPOWER14
Data Sheet
May 4, 2012
output capacitance will be required. Table 3 lists
recommended values of R
to meet 2% output voltage deviation limits for some
common output voltages in the presence of a 15A
to 30A 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
R
and C
TUNE
external ceramic capacitor combinations.
for Vin=12V and various
TUNE
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A outputcurrent
and C
TUNE
12V Mega TLynxTM: Non-Isolated DC-DC Power Modules:
in order
TUNE
Co
1x47μF 2x47μF 4x47μF 10x47μF 20x47μF
R
C
Table 3. Recommended values of R
C
Vout for a 15A step load with Vin=12V.
R
C
560 390 390 220 220
TUNE
270pF 470pF 820pF 2200pF 4700pF
TUNE
and
to obtain transient deviation of ≤2% of
TUNE
Vo 3.3V 2.5V 1.8V 1.2V 0.8V
2x47μF
+
3x47μF +
3x330μ
Co
Polyme
TUNE
2200pF 3900pF 6800pF 10nF 56nF
TUNE
ΔV
3x330μF
F
Polymer
r
390 390 330 220 150
66mV 50mV 36mV 24mV 16mV
3x47μF
+
4x330μF
Polymer
TUNE
7x330μF
Polymer
2x47μF+
10
x330μF
Polymer
LINEAGEPOWER15
Data Sheet
Air
W
May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A outputcurrent
12V Mega TLynxTM: Non-Isolated DC-DC Power Modules:
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 35. Note
that the airflow is parallel to the short axis of the
module as shown in Figure 36. The derating data
applies to airflow in either direction of the module’s
short axis.
x
12.7_
(0.50)
flow
25.4_
(1.0)
Power Module
76.2_
(3.0)
Probe Location
for measuring
airflow and
ambient
temperature
used in the
ref
ind Tunnel
PWBs
Figure 35. Thermal Test Setup.
The thermal reference points, T
specifications is shown in Figure 36. For reliable
operation the temperatures at this point should not
exceed 130
o
C. 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 BoardMounted Power Modules” for a detailed discussion
of thermal aspects including maximum device
temperatures.
Q6 & L2 Tref
AIRFLOW
DIRECTION
Figure 36. Preferred airflow direction and location of
hot-spot of the module (Tref).
LINEAGEPOWER16
Data Sheet
May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A outputcurrent
12V Mega TLynxTM: Non-Isolated DC-DC Power Modules:
Example Application Circuit
Requirements:
Vin: 12V
Vout: 1.8V
Iout: 22.5A max., worst case load transient is from 15A to 22.5A
ΔVout: 1.5% of Vout (27mV) for worst case load transient
Vin, ripple 1.5% of Vin (180mV, p-p)
CI1 2x22μF/16V ceramic capacitor (e.g. TDK C Series)
CI2 100μF/16V bulk electrolytic
CO1 3x47μF/6.3V ceramic capacitor (e.g. TDK C Series, Murata GRM32ER60J476ME20)
CO2 2x470μF/4V Polymer/poscap, Low EST (e.g. Sanyo Poscap 4TPE470MCL/4TPF470ML)
CTune 15nF ceramic capacitor
RTune 430 ohms SMT resistor
RTrim 8kΩ SMT resistor (recommended tolerance of 0.1%)
LINEAGEPOWER17
Data Sheet
May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A outputcurrent
12V Mega TLynxTM: Non-Isolated DC-DC Power Modules:
Mechanical Outline of Module
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 No. Function
1 On/Off
2 VIN
3 SEQ
4 GND
5 V
6 TRIM
7 SENSE
8 GND
9 SHARE
10 GND
OUT
BOTTOM VIEW
SIDE VIEW
TOP VIEW
Co-planarity (max) : 0.102[0.004]
LINEAGEPOWER18
Data Sheet
May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A outputcurrent
12V Mega TLynxTM: Non-Isolated DC-DC Power Modules:
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 10
Pin 8
PIN FUNCTION PIN FUNCTION
1 On/Off 6 Trim
2 VIN 7 Sense
3 SEQ 8 GND
4 GND 9 SHARE
5 VOUT 10 GND
LINEAGEPOWER19
Data Sheet
May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A outputcurrent
12V Mega TLynxTM: Non-Isolated DC-DC Power Modules:
Packaging Details
The 12V Mega TLynxTM SMT version is supplied in tape & reel as standard. Modules are shipped in quantities of
200 modules per reel.
All Dimensions are in millimeters and (in inches).
Reel Dimensions
Outside diameter: 330.2 (13.0)
Inside diameter: 177.8 (7.0)
Tape Width: 44.0 (1.73)
LINEAGEPOWER20
Data Sheet
d
May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A outputcurrent
12V Mega TLynxTM: Non-Isolated DC-DC Power Modules:
Surface Mount Information
Pick and Place
The 12V Mega TLynxTM 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 300
product information such as product code, serial
number and location of manufacture.
Figure 37. 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 pick &
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 5 mm
max.
Bottom 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 (Pb-free) Soldering
The –Z version Mega TLynx modules
(Pb-free) and RoHS compliant and are both
o
C. The label also carries
are lead-free
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).
Recommended linear reflow profile using Sn/Ag/Cu
solder:
Per J-STD-020 Rev. C
300
250
200
150
Heat ing Zone
1°C/Secon
100
Reflow Temp (°C)
50
0
Peak Temp 260°C
Reflow Time (Seconds)
* Min. Time Above 235°C
15 S econds
*Time Above 217°C
60 S econds
Cooling Zone
4°C/Second
NOTE: Soldering outside of the recommended
profile requires testing to verify results and
performance.
Tin Lead Soldering
The 12V Mega TLynxTM SMT power modules are lead
free modules and can be soldered either in a leadfree solder process or in a conventional Tin/Lead
(Sn/Pb) process. 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.
LINEAGEPOWER21
Data Sheet
May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A outputcurrent
12V Mega TLynxTM: Non-Isolated DC-DC Power Modules:
In a conventional Tin/Lead (Sn/Pb) solder process
peak reflow temperatures are limited to less than
o
C. Typically, the eutectic solder melts at 183oC,
235
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 CP
connector temperatures.
300
250
200
150
10 0
REFLOW TEMP (°C)
50
0
Peak T emp 235oC
Heat zone
oCs-1
max 4
Soak zone
30-240s
Preheat zo ne
oCs-1
max 4
REFLOW TIME (S)
Co o ling
zo ne
oCs-1
1- 4
T
above
lim
o
205
C
Figure 38. Reflow Profile for Tin/Lead (Sn/Pb)
process.
240
235
230
225
220
215
210
MAX TEMP SOLDER (°C)
205
200
0 10 203040 5060
Figure 39. Time Limit Curve Above 205oC Reflow
for Tin Lead (Sn/Pb) process.
MSL Rating
The 12V Mega TLynxTM SMT 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.
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).
Lineage Power reserves the right to make changes to the produ ct(s) or information contained herein without notice. No liability is assumed as a re sult of their use or
pplication. No rights under any patent accompany the sale of any such p roduct(s) or information.
Lineage Power DC-DC products are protected under various paten ts. Information on these patents is available at www.lineagepower.com/patents.
2010 Lineage Power Corporation, (Plano, Texas) All Internatio nal Rights Reserved.
LINEAGEPOWER23
Document No: DS09-003 ver 1.13
PDF Name: APTS030A0X3_ds.pdf
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