GE Industrial Solutions 12V Mega TLynx User Manual

Data Sheet May 4, 2012
12V Mega TLynx
TM
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 output current
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
LINEAGE POWER 2
Data Sheet May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current
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 m All C
With the Tunable Loop
ESR 0.15 m All C
ESR 10 m 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.)
LINEAGE POWER 3
Data Sheet May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current
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
LINEAGE POWER 4
Data Sheet
OUTPUT
CURRENT
OUTPUT
VOLTAGE
May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current
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
0 5 10 15 20 25 30
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
35 45 55 65 75 85
(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).
LINEAGE POWER 5
Data Sheet
OUTPUT
VOLTAGE
ON/OFF
VOLTAGE
May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current
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
0 5 10 15 20 25 30
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)
35 45 55 65 75 85
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).
LINEAGE POWER 6
Data Sheet
OUTPUT
CURRENT
OUTPUT
VOLTAGE
May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current
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
0 5 10 15 20 25 30
OUTPUT CURRENT, IO (A)
Figure 13. Converter Efficiency versus Output Current.
35
30
25
20
15
10
5
OUTPUT CURRENT, Io (A)
0
35 45 55 65 75 85
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).
LINEAGE POWER 7
Data Sheet
OUTPUT
VOLTAGE
ON/OFF
VOLTAGE
May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current
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
0 5 10 15 20 25 30
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
35 45 55 65 75 85
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).
LINEAGE POWER 8
Data Sheet
OUTPUT
VOLTAGE
ON/OFF
VOLTAGE
May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current
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
0 5 10 15 20 25 30
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).
LINEAGE POWER 9
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 output current
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
0.5 1 1.5 2 2.5 3
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.
LINEAGE POWER 10
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 output current
140
120
1x10uF Ex ternal Cap
100
80
60
Ripple (mVp-p)
40
20
0
0.5 1 1.5 2 2.5 3
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.
LINEAGE POWER 11
Data Sheet May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current
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
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.com under the Design Tools section, helps determine the required external trim resistor needed for a specific output voltage.
Table 1
(V)
Rtrim (K)
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.com under 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.
LINEAGE POWER 12
Data Sheet May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current
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
LINEAGE POWER 13
Data Sheet May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current
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
LINEAGE POWER 14
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 output current
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
LINEAGE POWER 15
Data Sheet
Air
W
May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current
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).
LINEAGE POWER 16
Data Sheet May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current
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%)
LINEAGE POWER 17
Data Sheet May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current
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]
LINEAGE POWER 18
Data Sheet May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current
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
LINEAGE POWER 19
Data Sheet May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current
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)
LINEAGE POWER 20
Data Sheet
d
May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current
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.
LINEAGE POWER 21
Data Sheet May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current
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 22
Data Sheet
a
©
May 4, 2012
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current
12V Mega TLynxTM: Non-Isolated DC-DC Power Modules:
Ordering Information
Table 4. Device Codes
Product codes
Input
Voltage
APTS030A0X3-SRPHZ 6.0 – 14Vdc 0.8 – 3.63Vdc 30A Negative SMT CC109138351
Table 5. Coding Scheme
TLynx family
Sequencing
feature.
Input voltage
range
Output current Output voltage
AP T S 030A0 X -SR Z
T = with Seq. S = 6 - 14V 30A X =
Table 6. Device Options
Option Device Code Suffix
Current Share -P
2 Extra ground pins -H
RoHS Compliant -Z
Output
Voltage
Output
Current
programmable
output
On/Off
Logic
Connector
Type
Options ROHS Compliance
S = Surface Mount
Z = ROHS6
R = Tape&Reel
P = Paralleling
Comcodes
Asia-Pacific Headquarters
Tel: +86.021.54279977*808
World Wide Headquarters Lineage Power Corporation
601 Shiloh Road, Plano, TX 75074, USA +1-888-LINEAGE(546-3243) (Outside U.S.A.: +1-972-244-WATT(9288))
www.lineagepower.com e-mail: techsupport1@lineagepower.com
Europe, Middle-East and Africa Headquarters
Tel: +49.89.878067-280
India Headquarters
Tel: +91.80.28411633
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.
LINEAGE POWER 23
Document No: DS09-003 ver 1.13
PDF Name: APTS030A0X3_ds.pdf
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