AXA010A0X3-SRZ [LINEAGEPOWER]
10 - 14Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current; 10 - 14VDC输入; 0.75Vdc至5.5VDC输出; 10A的输出电流
| 型号： | AXA010A0X3-SRZ |
| 厂家： | 
LINEAGE POWER CORPORATION |
| 描述： | 10 - 14Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current |
| 文件： | 总20页 (文件大小：584K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Data Sheet
April 8, 2008
12V Austin LynxTM SMT Non-isolated Power Modules, Programmable:
10 – 14Vdc input; 0.75Vdc to 5.5Vdc Output; 10A Output Current
Features
RoHS Compliant
Compliant to RoHS EU Directive 2002/95/EC (-Z
versions)
Compliant to ROHS EU Directive 2002/95/EC with
lead solder exemption (non-Z versions)
Delivers up to 10A of output current
High efficiency – 93% at 3.3V full load (VIN = 12.0V)
Small size and low profile:
33.00 mm x 13.46 mm x 8.28 mm
(1.300 in x 0.530 in x 0.326 in)
Low output ripple and noise
High Reliability:
Calculated MTBF = 4.4 M hours at 25oC Full-load
Applications
Output voltage programmable from 0.75 Vdc to 5.5
Vdc via external resistor
Distributed power architectures
Line Regulation: 0.3% (typical)
Load Regulation: 0.4% (typical)
Temperature Regulation: 0.4% (typical)
Remote On/Off
Intermediate bus voltage applications
Telecommunications equipment
Servers and storage applications
Networking equipment
Remote Sense
Output overcurrent protection (non-latching)
Overtemperature protection
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
Description
The 12V Austin LynxTM Programmable SMT (surface mount technology) power modules are non-isolated DC-DC
converters that can deliver up to 10A of output current with full load efficiency of 93% at 3.3V output. These
modules provide a precisely regulated output voltage programmable via an external resistor from 0.75Vdc to 5.5Vdc
over a wide range of input voltage (VIN = 10 – 14Vdc). Their open-frame construction and small footprint enable
designers to develop cost- and space-efficient solutions. Standard features include remote On/Off, remote sense,
output voltage adjustment, overcurrent and overtemperature protection.
*
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
Document No: DS03-097 ver. 1.42
PDF name: austin lynx smt 12v x3.pdf
Data Sheet
12V Austin LynxTM SMT Non-isolated Power Modules Programmable:
10 – 14Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current
April 8, 2008
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are
absolute stress ratings only, functional operation of the device is not implied at these or any other conditions in
excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for
extended periods can adversely affect the device reliability.
Parameter
Device
Symbol
Min
Max
Unit
Input Voltage
All
VIN
-0.3
15
Vdc
Continuous
Operating Ambient Temperature
(see Thermal Considerations section)
Storage Temperature
All
All
TA
-40
-55
85
°C
°C
Tstg
125
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions.
Parameter
Device
All
Symbol
VIN
Min
Typ
Max
14.0
6.5
Unit
Vdc
Adc
Operating Input Voltage
10
12.0
Maximum Input Current
All
IIN,max
(VIN= VIN, min to VIN, max, IO=IO, max VO,set = 3.3Vdc)
Input No Load Current
VO,set = 0.75 Vdc
VO,set = 3.3Vdc
All
IIN,No load
IIN,No load
IIN,stand-by
40
100
2.0
mA
mA
mA
(VIN = 12.0Vdc, IO = 0, module enabled)
Input Stand-by Current
(VIN = 12.0Vdc, module disabled)
Inrush Transient
All
All
All
I2t
0.4
A2s
mAp-p
dB
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 1μH source impedance; VIN, min to
20
30
VIN, max, IO= IOmax ; See Test configuration section)
Input Ripple Rejection (120Hz)
CAUTION: This power module is not internally fused. An input line fuse must always be used.
This power module can be used in a wide variety of applications, ranging from simple standalone operation to being
part of a complex power architecture. To preserve maximum flexibility, internal fusing is not included, however, to
achieve maximum safety and system protection, always use an input line fuse. The safety agencies require a fast-
acting fuse with a maximum rating of 15 A (see Safety Considerations section). Based on the information provided in
this data sheet on inrush energy and maximum dc input current, the same type of fuse with a lower rating can be
used. Refer to the fuse manufacturer’s data sheet for further information.
LINEAGE POWER
2
Data Sheet
12V Austin LynxTM SMT Non-isolated Power Modules Programmable:
10 – 14 Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current
April 8, 2008
Electrical Specifications (continued)
Parameter
Device
Symbol
Min
Typ
Max
Unit
Output Voltage Set-point
All
VO, set
–2.0
+2.0
% VO, set
⎯
(VIN=IN, min, IO=IO, max, TA=25°C)
Output Voltage
All
All
VO, set
–2.5%
0.7525
+3.5%
5.5
% VO, set
⎯
(Over all operating input voltage, resistive load,
and temperature conditions until end of life)
Adjustment Range
VO
% VO, set
Selected by an external resistor
Output Regulation
Line (VIN=VIN, min to VIN, max
Load (IO=IO, min to IO, max
Temperature (Tref=TA, min to TA, max
)
All
All
All
0.3
0.4
0.4
% VO, set
% VO, set
% VO, set
⎯
⎯
⎯
)
)
Output Ripple and Noise on nominal output
(VIN=VIN, nom and IO=IO, min to IO, max
Cout = 1μF ceramic//10μFtantalum capacitors)
RMS (5Hz to 20MHz bandwidth)
All
All
12
30
15
50
mVrms
⎯
⎯
Peak-to-Peak (5Hz to 20MHz bandwidth)
External Capacitance
mVpk-pk
ESR ≥ 1 mΩ
All
All
All
All
All
CO, max
CO, max
Io
1000
5000
10
μF
μF
⎯
⎯
0
⎯
⎯
ESR ≥ 10 mΩ
Output Current
Adc
% Io
Adc
⎯
Output Current Limit Inception (Hiccup Mode )
Output Short-Circuit Current
(VO≤250mV) ( Hiccup Mode )
Efficiency
IO, lim
IO, s/c
200
3
⎯
⎯
⎯
⎯
VO, set = 0.75Vdc
VO, set = 1.2Vdc
VO,set = 1.5Vdc
VO,set = 1.8Vdc
VO,set = 2.5Vdc
VO,set = 3.3Vdc
VO,set = 5.0Vdc
All
η
η
81.0
87.5
89.0
90.0
92.0
93.0
95.0
300
%
%
VIN= VIN, nom, TA=25°C
IO=IO, max , VO= VO,set
η
%
η
%
η
%
η
%
η
%
Switching Frequency
fsw
kHz
⎯
⎯
⎯
⎯
Dynamic Load Response
All
Vpk
200
mV
(dIo/dt=2.5A/μs; VIN = VIN, nom; TA=25°C)
Load Change from Io= 50% to 100% of
Io,max; 1μF ceramic// 10 μF tantalum
Peak Deviation
Settling Time (Vo<10% peak deviation)
All
All
ts
25
⎯
⎯
⎯
⎯
μs
Vpk
200
mV
(dIo/dt=2.5A/μs; VIN = VIN, nom; TA=25°C)
Load Change from Io= 100% to 50%of Io,max:
1μF ceramic// 10 μF tantalum
Peak Deviation
Settling Time (Vo<10% peak deviation)
All
ts
25
⎯
⎯
μs
LINEAGE POWER
3
Data Sheet
12V Austin LynxTM SMT Non-isolated Power Modules Programmable:
10 – 14Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current
April 8, 2008
Electrical Specifications (continued)
Parameter
Device
Symbol
Min
Typ
Max
Unit
Dynamic Load Response
All
Vpk
100
mV
(dIo/dt=2.5A/μs; V VIN = VIN, nom; TA=25°C)
⎯
⎯
Load Change from Io= 50% to 100% of Io,max;
Co = 2x150 μF polymer capacitors
Peak Deviation
Settling Time (Vo<10% peak deviation)
All
All
ts
25
⎯
⎯
⎯
⎯
μs
Vpk
100
mV
(dIo/dt=2.5A/μs; VIN = VIN, nom; TA=25°C)
Load Change from Io= 100% to 50%of Io,max:
Co = 2x150 μF polymer capacitors
Peak Deviation
Settling Time (Vo<10% peak deviation)
All
ts
25
⎯
⎯
μs
General Specifications
Parameter
Min
Typ
Max
Unit
Calculated MTBF (IO=IO, max, TA=25°C)
Weight
4,400,000
5.6 (0.2)
Hours
g (oz.)
⎯
⎯
LINEAGE POWER
4
Data Sheet
12V Austin LynxTM SMT Non-isolated Power Modules Programmable:
10 – 14 Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current
April 8, 2008
Feature Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions. See Feature Descriptions for additional information.
Parameter
Device
Symbol
Min
Typ
Max
Unit
Remote On/Off Signal interface
(VIN=VIN, min to VIN, max; Open collector npn or equivalent
Compatible, Von/off signal referenced to GND
See feature description section)
Logic High (On/Off Voltage pin open - Module ON)
Von/Off
All
All
VIH
IIH
―
―
―
―
VIN
10
V
Ion/Off
μA
Logic Low (Von/Off ≤ 0.3V – Module Off)
Von/Off
All
All
VIL
IIL
―
―
―
―
0.3
1
V
Ion/off
mA
Turn-On Delay and Rise Times
(IO=IO, max , VIN = VIN, nom, TA = 25 oC, )
All
All
Tdelay
Tdelay
3
3
msec
msec
Case 1: On/Off input is set to Logic Low (Module
ON) and then input power is applied (delay from
instant at which VIN =VIN, min until Vo=10% of Vo,set)
Case 2: Input power is applied for at least one second
and then the On/Off input is set to logic Low (delay from
instant at which Von/Off=0.3V until Vo=10% of Vo, set)
All
Trise
―
4
6
1
msec
Output voltage Rise time (time for Vo to rise from 10%
of Vo,set to 90% of Vo, set)
Output voltage overshoot – Startup
―
% VO, set
IO= IO, max; VIN = 10.0 to 14Vdc, TA = 25 oC
Remote Sense Range
All
All
―
―
0.5
V
Overtemperature Protection
Tref
125
°C
⎯
⎯
(See Thermal Consideration section)
Input Undervoltage Lockout
Turn-on Threshold
All
All
8.2
8.0
V
V
⎯
⎯
⎯
⎯
Turn-off Threshold
LINEAGE POWER
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Data Sheet
12V Austin LynxTM SMT Non-isolated Power Modules Programmable:
10 – 14Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current
April 8, 2008
Characteristic Curves
The following figures provide typical characteristics for the 12V Austin Lynx Programmable SMT modules at 25ºC.
90
88
86
84
82
80
78
76
74
72
70
94
92
90
88
86
84
82
80
78
76
74
Vin=14V
Vin=12V
Vin=10V
Vin=14V
Vin=12V
Vin=10V
0
2
4
6
8
10
0
2
4
6
8
10
OUTPUT CURRENT, IO (A)
OUTPUT CURRENT, IO (A)
Figure 1. Converter Efficiency versus Output Current
(Vout =1.2Vdc).
Figure 4. Converter Efficiency versus Output Current
(Vout = 2.5Vdc).
92
90
88
86
84
82
80
95
93
91
89
87
Vin=14V
Vin=12V
Vin=10V
85
83
81
Vin=14V
Vin=12V
Vin=10V
78
76
74
79
77
0
2
4
6
8
10
0
2
4
6
8
10
OUTPUT CURRENT, IO (A)
OUTPUT CURRENT, IO (A)
Figure 2. Converter Efficiency versus Output Current
(Vout = 1.5Vdc).
Figure 5. Converter Efficiency versus Output Current
(Vout = 3.3Vdc).
92
90
88
86
84
82
96
94
92
90
Vin=14V
Vin=12V
Vin=10V
88
86
84
Vin=14V
Vin=12V
80
78
76
82
80
78
Vin=10V
0
2
4
6
8
10
0
2
4
6
8
10
OUTPUT CURRENT, IO (A)
OUTPUT CURRENT, IO (A)
Figure3. Converter Efficiency versus Output Current
(Vout = 1.8Vdc).
Figure 6. Converter Efficiency versus Output Current
(Vout = 5.0Vdc).
LINEAGE POWER
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Data Sheet
12V Austin LynxTM SMT Non-isolated Power Modules Programmable:
10 – 14 Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current
April 8, 2008
Characteristic Curves (continued)
The following figures provide typical characteristics for the 12V Austin Lynx Programmable SMT modules at 25ºC.
6
Io = 10A
5
Io=5A
4
Io=0A
3
2
1
0
7
8
9
10
11
12
13
14
INPUT VOLTAGE, VIN (V)
Figure 7. Input voltage vs. Input Current
TIME, t (5 μs/div)
Figure 10. Transient Response to Dynamic Load
Change from 50% to 100% of full load (Vo = 3.3Vdc).
(Vout = 3.3Vdc).
TIME, t (2μs/div)
Figure 8. Typical Output Ripple and Noise
(Vin = 12.0V dc, Vo = 2.5 Vdc, Io=10A).
TIME, t (5 μs/div)
Figure 11. Transient Response to Dynamic Load
Change from 100% to 50% of full load (Vo = 3.3 Vdc).
TIME, t (2μs/div)
Figure 9. Typical Output Ripple and Noise
(Vin = 12.0V dc, Vo = 5.0 Vdc, Io=10A).
TIME, t (10μs/div)
Figure 12. Transient Response to Dynamic Load
Change from 50% to 100% of full load (Vo = 3.3 Vdc,
Cext = 2x150 μF Polymer Capacitors).
LINEAGE POWER
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Data Sheet
12V Austin LynxTM SMT Non-isolated Power Modules Programmable:
10 – 14Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current
April 8, 2008
Characteristic Curves (continued)
The following figures provide typical characteristics for the 12V Austin Lynx Programmable SMT modules at 25ºC.
TIME, t (2 ms/div)
TIME, t (10μs/div)
Figure 13. Transient Response to Dynamic Load
Figure 16. Typical Start-Up with application of Vin with
Change from 100% of 50% full load (Vo = 5.0 Vdc, Cext low-ESR polymer capacitors at the output (7x150 μF)
= 2x150 μF Polymer Capacitors).
(Vin = 12Vdc, Vo = 5.0Vdc, Io = 10A, Co = 1050 μF).
TIME, t (1 ms/div)
TIME, t (2 ms/div)
Figure 14. Typical Start-Up Using Remote On/Off (Vin
= 12.0Vdc, Vo = 5.0Vdc, Io = 10.0A).
Figure 17 Typical Start-Up Using Remote On/Off with
Prebias (Vin = 12.0Vdc, Vo = 2.5Vdc, Io = 1.0A, Vbias
=1.2Vdc).
TIME, t (1 ms/div)
TIME, t (10ms/div)
Figure 15. Typical Start-Up Using Remote On/Off with
Low-ESR external capacitors (Co= 5000μF) (Vin =
12.0Vdc, Vo = 5.0Vdc, Io = 10.0A, Co = 1050μF).
Figure 18. Output short circuit Current (Vin = 12.0Vdc,
Vo = 0.75Vdc).
LINEAGE POWER
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Data Sheet
12V Austin LynxTM SMT Non-isolated Power Modules Programmable:
10 – 14 Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current
April 8, 2008
Characteristic Curves (continued)
The following figures provide thermal derating curves for the 12V Austin Lynx Programmable SMT modules.
11
10
11
10
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
NC
NC
100LFM
200LFM
100LFM
200LFM
300LFM
400LFM
300LFM
400LFM
20
30
40
50
60
70
80
90
90
90
20
30
40
50
60
70
80
90
AMBIENT TEMPERATURE, TA OC
AMBIENT TEMPERATURE, TA OC
Figure 22. Derating Output Current versus Local
Ambient Temperature and Airflow (Vin = 12.0 Vdc,
Vo=5.0 Vdc).
Figure 19. Derating Output Current versus Local
Ambient Temperature and Airflow (Vin = 12.0 Vdc,
Vo=0.75Vdc).
11
10
9
8
7
6
NC
5
100LFM
4
200LFM
3
300LFM
2
400LFM
1
0
20
30
40
50
60
70
80
AMBIENT TEMPERATURE, TA OC
Figure 20. Derating Output Current versus Local
Ambient Temperature and Airflow (Vin = 12.0Vdc,
Vo=1.8 Vdc).
11
10
9
8
7
6
NC
5
100 LFM
4
200LFM
3
300LFM
2
400LFM
1
0
20
30
40
50
60
70
80
AMBIENT TEMPERATURE, TA OC
Figure 21. Derating Output Current versus Local
Ambient Temperature and Airflow (Vin = 12.0Vdc,
Vo=3.3 Vdc).
LINEAGE POWER
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Data Sheet
12V Austin LynxTM SMT Non-isolated Power Modules Programmable:
10 – 14Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current
April 8, 2008
Test Configurations
Design Considerations
Input Filtering
CURRENT PROBE
VIN(+)
TO OSCILLOSCOPE
The 12V Austin Lynx Programmable SMT 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.
LTEST
1μH
CIN
CS 1000μF
Electrolytic
2x100μF
Tantalum
E.S.R.<0.1Ω
@ 20°C 100kHz
In a typical application, 4x47 µF low-ESR tantalum
capacitors (AVX part #: TPSE476M025R0100, 47µF 25V
100 mΩ ESR tantalum capacitor) will be sufficient to
provide adequate ripple voltage at the input of the
module. To minimize ripple voltage at the input, low
ESR ceramic capacitors are recommended at the input of
the module. Figure 26 shows input ripple voltage (mVp-
p) for various outputs with 4x47 µF tantalum capacitors
and with 4x22 µF ceramic capacitor (TDK part #:
C4532X5R1C226M) at full load.
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.
Figure 23. Input Reflected Ripple Current Test Setup.
COPPER STRIP
VO(+)
COM
RESISTIVE
LOAD
300
250
200
150
1uF
.
10uF
SCOPE
GROUND PLANE
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.
10 0
Tantalum
50
Figure 24. Output Ripple and Noise Test Setup.
Ceramic
0
0
1
2
3
4
5
6
Rdistribution Rcontact
Rcontact Rdistribution
VIN(+)
VO
Output Voltage (Vdc)
Figure 26. Input ripple voltage for various output
with 4x22 µF polymer and 4x47 µF ceramic capacitors
at the input (full load).
RLOAD
VO
VIN
Rdistribution Rcontact
Rcontact Rdistribution
COM
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.
Figure 25. Output Voltage and Efficiency Test Setup.
VO. IO
Efficiency
=
x
100 %
η
VIN. IIN
LINEAGE POWER
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Data Sheet
12V Austin LynxTM SMT Non-isolated Power Modules Programmable:
10 – 14 Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current
April 8, 2008
Design Considerations (continued)
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.
Output Filtering
The 12V Austin Lynx Programmable SMT module is
designed for low output ripple voltage and will meet the
maximum output ripple specification with 1 µF ceramic
and 10 µF tantalum capacitors at the output of the
module. However, additional output filtering may be
required by the system designer for a number of reasons.
First, there may be a need to further reduce the output
ripple and noise of the module. Second, the dynamic
response characteristics may need to be customized to a
particular load step change.
For the converter output to be considered meeting the
requirements of safety extra-low voltage (SELV), the
input must meet SELV requirements. The power module
has extra-low voltage (ELV) outputs when all inputs are
ELV.
The input to these units is to be provided with a fast-
acting fuse with a maximum rating of 15A in the positive
input lead.
To reduce the output ripple and improve the dynamic
response to a step load change, additional capacitance at
the output can be used. Low ESR polymer and ceramic
capacitors are recommended to improve the dynamic
response of the module. For stable operation of the
module, limit the capacitance to less than the maximum
output capacitance as specified in the electrical
specification table.
LINEAGE POWER
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Data Sheet
12V Austin LynxTM SMT Non-isolated Power Modules Programmable:
10 – 14Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current
April 8, 2008
the thermal shutdown is not intended as a guarantee that
the unit will survive temperatures beyond its rating. The
module will automatically restart after it cools down.
Feature Description
Remote On/Off
The 12V Austin Lynx Programmable SMT power modules
feature an On/Off pin for remote On/Off operation. If not
using the remote On/Off pin, leave the pin open (module
will be On). The On/Off pin signal (Von/Off) is referenced
to ground. To switch the module on and off using remote
On/Off, connect an open collector npn transistor between
the On/Off pin and the ground pin (See Figure 27).
Output Voltage Programming
The output voltage of the 12V Austin Lynx Programmable
SMT module can be programmed to any voltage from
0.75Vdc to 5.5Vdc by connecting a resistor (shown as
Rtrim in Figure 28) between Trim and GND pins of the
module. Without an external resistor between Trim and
GND pins, the output of the module will be 0.7525Vdc.
To calculate the value of the trim resistor, Rtrim for a
desired output voltage, use the following equation:
During a logic-high (On/Off pin is pulled high internal to
the module) when the transistor is in the Off state, the
power module is ON. The maximum allowable leakage
current of the transistor when Von/off = VIN,max is 10µA.
During a logic-low when the transistor is turned-on, the
power module is OFF. During this state VOn/Off is less
than 0.3V and the maximum IOn/Off = 1mA.
10500
⎡
⎤
Rtrim =
−1000 Ω
⎢
⎥
Vo − 0.7525
⎣
⎦
For example, to program the output voltage of the 12V
Austin Lynx Programmable SMT module to 1.8 Vdc, Rtrim
is calculated is follows:
VIN+
MODULE
R2
10500
⎡
⎤
ON/OFF
Q2
Rtrim =
−1000
⎢
⎣
⎥
⎦
+
R1
1.8 − 0.75
V
ON/OFF
I
Rtrim = 9.024kΩ
ON/OFF
PWM Enable
R3
R4
Vout
Q1
VIN(+)
VO(+)
Q3
CSS
ON/OFF
GND
_
LOAD
TRIM
Figure 27. Remote On/Off Implementation.
Overcurrent Protection
R
trim
GND
To provide protection in a fault (output overload)
condition, the unit is equipped with internal
Figure 28. Circuit configuration for programming
output voltage using an external resistor.
current-limiting circuitry and can endure current limiting
continuously. At the point of current-limit inception, the
unit enters hiccup mode. The unit operates normally once
the output current is brought back into its specified range.
The typical average output current during hiccup is 3 A.
Table 1 provides Rtrim values required for some common
output voltages
Input Undervoltage Lockout
Table 1
VO, set (V)
0.7525
1.2
Rtrim (KΩ)
Open
At input voltages below the input undervoltage lockout
limit, module operation is disabled. The module will begin
to operate at an input voltage above the undervoltage
lockout turn-on threshold.
22.46
1.5
13.05
Overtemperature Protection
1.8
9.024
To provide over temperature protection in a fault
2.5
5.009
condition, the unit relies upon the thermal protection
feature of the controller IC. The unit will shutdown if the
thermal reference point Tref, exceeds 125oC (typical), but
3.3
3.122
5.0
1.472
LINEAGE POWER
12
Data Sheet
12V Austin LynxTM SMT Non-isolated Power Modules Programmable:
10 – 14 Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current
April 8, 2008
Voltage Margining
Feature Descriptions (continued)
Output voltage margining can be implemented in the
12V Austin Lynx Programmable SMT modules by
connecting a resistor, Rmargin-up, from Trim pin to ground
pin for margining-up the output voltage and by
connecting a resistor, Rmargin-down, from Trim pin to
Output pin. Figure 30 shows the circuit configuration
for output voltage margining. The POL Programming
Tool, available at www.lineagepower.com under the
Design Tools section, also calculates the values of
By using a 1% tolerance trim resistor, set point tolerance
of ±2% is achieved as specified in the electrical
specification. The POL Programming Tool, available at
www.lineagepower.com under the Design Tools section,
helps determine the required external trim resistor
needed for a specific output voltage.
The amount of power delivered by the module is defined
as the voltage at the output terminals multiplied by the
output current. When using the trim feature, the output
voltage of the module can be increased, which at the
same output current would increase the power output of
the module. Care should be taken to ensure that the
maximum output power of the module remains at or
below the maximum rated power (Pmax = Vo,set x Io,max).
Rmargin-up and Rmargin-down for a specific output voltage
and % margin. Please consult your local Lineage
Power technical representative for additional details
Vo
Rmargin-down
Austin Lynx or
Lynx II Series
Remote Sense
Q2
The 12V Austin Lynx Programmable SMT power modules
have a Remote Sense feature to minimize the effects of
distribution losses by regulating the voltage at the
Remote Sense and GND pins (See Figure 29). The
voltage between the Sense pin and Vo pin must not
exceed 0.5V. Although both the Remote Sense and the
TRIM features can increase the output voltage Vo, the
maximum increase is not the sum of both. The maximum
Vo increase is the larger of either the Remote Sense or
TRIM.
Trim
Rmargin-up
Rtrim
Q1
GND
The amount of power delivered by the module is defined
as the output voltage multiplied by the output current (Vo
x Io). When using Remote Sense and/or TRIM, the
output voltage of the module can increase, which if the
same output is maintained, increases the power output by
the module. Make sure that the maximum output power
of the module remains at or below the maximum rated
power. When the Remote Sense feature is not being
used, leave the Remote Sense pin unconnected.
Figure 30. Circuit Configuration for margining
Output voltage.
Rdistribution Rcontact
Rcontact Rdistribution
VIN(+)
VO
Sense
RLOAD
Rdistribution Rcontact
Rcontact Rdistribution
COM
COM
Figure 29. Remote sense circuit configuration
LINEAGE POWER
13
Data Sheet
12V Austin LynxTM SMT Non-isolated Power Modules Programmable:
10 – 14Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current
April 8, 2008
Thermal Considerations
Power modules operate in a variety of thermal
environments; however, sufficient cooling should always
be provided to help ensure reliable operation.
25.4_
(1.0)
Wind Tunnel
PWBs
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
32. Note that the airflow is parallel to the short axis of the
module as shown in figure 31. The derating data applies
to airflow in either direction of the module’s short axis.
Powe r Mo d ule
76.2_
(3.0)
Tref
Top View
x
Pro b e Lo c a tio n
for measuring
airflow and
ambient
8.3_
(0.325)
temperature
Air
flow
Air Flow
Figure 32. Thermal Test Set-up.
Figure 31. T
ref
Temperature measurement location.
Heat Transfer via Convection
Increased airflow over the module enhances the heat
transfer via convection. Thermal derating curves showing
the maximum output current that can be delivered at
different local ambient temperatures (TA) for airflow
conditions ranging from natural convection and up to
2m/s (400 ft./min) are shown in the Characteristics
Curves section.
The thermal reference point, Tref used in the
specifications is shown in Figure 31. For reliable
operation this temperature should not exceed 115oC.
The output power of the module should not exceed the
rated power of the module (Vo,set x Io,max).
Please refer to the Application Note “Thermal
Characterization Process For Open-Frame Board-
Mounted Power Modules” for a detailed discussion of
thermal aspects including maximum device temperatures.
LINEAGE POWER
14
Data Sheet
12V Austin LynxTM SMT Non-isolated Power Modules Programmable:
10 – 14 Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current
April 8, 2008
Mechanical Outline
Dimensions are in millimeters and (inches).
Tolerances: x.x mm 0.5 mm (x.xx in. 0.02 in.) [unless otherwise indicated]
x.xx mm 0.25 mm (x.xxx in 0.010 in.)
LINEAGE POWER
15
Data Sheet
12V Austin LynxTM SMT Non-isolated Power Modules Programmable:
10 – 14Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current
April 8, 2008
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.)
LINEAGE POWER
16
Data Sheet
12V Austin LynxTM SMT Non-isolated Power Modules Programmable:
10 – 14 Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current
April 8, 2008
Packaging Details
The 12V Austin Lynx Programmable SMT version is supplied in tape & reel as standard. Modules are shipped in
quantities of 250 modules per reel.
All Dimensions are in millimeters and (in inches).
Reel Dimensions:
Outside Dimensions:
Inside Dimensions:
Tape Width:
330.2 mm (13.00)
177.8 mm (7.00”)
44.00 mm (1.732”)
LINEAGE POWER
17
Data Sheet
12V Austin LynxTM SMT Non-isolated Power Modules Programmable:
10 – 14Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current
April 8, 2008
Surface Mount Information
instructions may result in the failure of or cause
damage to the modules, and can adversely affect
long-term reliability.
Pick and Place
The 12V Austin Lynx Programmable SMT modules
use an open frame construction and are designed for
a fully automated assembly process. The modules
are fitted with a label designed to provide a large
surface area for pick and place operations. The label
meets all the requirements for surface mount
processing, as well as safety standards, and is able to
withstand reflow temperatures of up to 300oC. The
label also carries product information such as product
code, serial number and the location of manufacture.
In a conventional Tin/Lead (Sn/Pb) solder process
peak reflow temperatures are limited to less than
235oC. Typically, the eutectic solder melts at 183oC,
wets the land, and subsequently wicks the device
connection. Sufficient time must be allowed to fuse
the plating on the connection to ensure a reliable
solder joint. There are several types of SMT reflow
technologies currently used in the industry. These
surface mount power modules can be reliably
soldered using natural forced convection, IR (radiant
infrared), or a combination of convection/IR. For
reliable soldering the solder reflow profile should be
established by accurately measuring the modules CP
connector temperatures.
300
Peak Temp 235oC
250
Cooling
zone
Heat zone
max 4oCs-1
200
150
10 0
50
1- 4 oCs-1
Soak zone
30-240s
T
lim above
Figure 33. Pick and Place Location.
Nozzle Recommendations
205oC
Preheat zone
max 4oCs-1
0
The module weight has been kept to a minimum by
using open frame construction. Even so, these
modules have a relatively large mass when compared
to conventional SMT components. Variables such as
nozzle size, tip style, vacuum pressure and placement
speed should be considered to optimize this process.
The minimum recommended nozzle diameter for
reliable operation is 6mm. The maximum nozzle outer
diameter, which will safely fit within the allowable
component spacing, is 9 mm.
REFLOW TIME (S)
Figure 34. Reflow Profile for Tin/Lead (Sn/Pb)
process.
240
235
230
225
220
215
210
205
200
Oblong or oval nozzles up to 11 x 9 mm may also be
used within the space available.
Tin Lead Soldering
The Austin LynxTM 12 V SMT power modules are lead
free modules and can be soldered either in a lead-free
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
0
10
20
30
40
50
60
Figure 35. Time Limit Curve Above 205oC for
Tin/Lead (Sn/Pb) process.
soldering these units. Failure to observe these
LINEAGE POWER
18
Data Sheet
12V Austin LynxTM SMT Non-isolated Power Modules Programmable:
10 – 14 Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current
April 8, 2008
Modules: Soldering and Cleaning Application Note
(AN04-001).
Surface Mount Information (continued)
Lead Free Soldering
The –Z version 12V Austin Lynx Programmable SMT
modules are lead-free (Pb-free) and RoHS compliant
and are both forward and backward compatible in a
Pb-free and a SnPb soldering process. Failure to
observe the instructions below may result in the
failure of or cause damage to the modules and can
adversely affect long-term reliability.
300
Per J-STD-020 Rev. C
Peak Temp 260°C
250
200
150
100
50
Cooling
Zone
* Min. Time Above 235°C
15 Seconds
Heating Zone
1°C/Second
*Time Above 217°C
60 Seconds
Pb-free Reflow Profile
Power Systems will comply with J-STD-020 Rev. C
(Moisture/Reflow Sensitivity Classification for
Nonhermetic Solid State Surface Mount Devices) for
both Pb-free solder profiles and MSL classification
procedures. This standard provides a recommended
forced-air-convection reflow profile based on the
volume and thickness of the package (table 4-2). The
suggested Pb-free solder paste is Sn/Ag/Cu (SAC).
The recommended linear reflow profile using
Sn/Ag/Cu solder is shown in Fig. 36.
0
Reflow Time (Seconds)
Figure 36. Recommended linear reflow profile
using Sn/Ag/Cu solder.
MSL Rating
The 12V Austin Lynx Programmable 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
LINEAGE POWER
19
Data Sheet
12V Austin LynxTM SMT Non-isolated Power Modules Programmable:
10 – 14Vdc input; 0.75Vdc to 5.5Vdc Output; 10A output current
April 8, 2008
Ordering Information
Please contact your Lineage Power Sales Representative for pricing, availability and optional features.
Table 2. Device Codes
Input
Voltage
Output
Voltage
Output
Current
Connector
Type
Device Code
Efficiency
Comcodes
AXA010A0X3-SR
AXA010A0X3-SRZ
10 – 14Vdc
10 – 14Vdc
0.75 – 5.5 V
0.75 – 5.5 V
10 A
10 A
SMT
SMT
108970138
93%
93%
CC109101326
-Z refers to RoHS-compliant versions
Asia-Pacific Headquarters
Tel: +65 6416 4283
Europe, Middle-East and Africa Headquarters
World Wide Headquarters
Tel: +49 89 6089 286
Lineage Power Corporation
3000 Skyline Drive, Mesquite, TX 75149, USA
+1-800-526-7819
India Headquarters
(Outside U.S.A.: +1-972-284-2626)
www.lineagepower.com
Tel: +91 80 28411633
e-mail: techsupport1@lineagepower.com
Lineage Power reserves the right to make changes to the product(s) or information contained herein without notice. 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.
© 2008 Lineage Power Corporation, (Mesquite, Texas) All International Rights Reserved.
LINEAGE POWER
20
Document No: DS03-097 ver. 1.42
PDF name: austin lynx smt 12v x3.pdf
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