Lineage Power AXH010A0Y9 Austin lynxtm smt non-isolated dc-dc power module Datasheet

Data Sheet
March 28, 2008
Austin LynxTM SMT Non-Isolated dc-dc Power Modules:
3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Features
RoHS Compliant
Applications
n
Compatible with RoHS EU Directive 200295/EC
n
Compatible in Pb- free or SnPb reflow environment
n
Delivers up to 10A output current
n
High efficiency: 95% at 3.3V full load
n
Small size and low profile:
33 mm x 13.5 mm x 8.30 mm
(1.3 in x 0.53 in x 0.33 in)
n
Light Weight 0.23 oz(6.5 g)
n
Cost-efficient open frame design
n
High reliability: MTBF > 10M hours at 25 °C
n
Constant switching frequency (300 KHz typical)
n
Output overcurrent protection with auto-restart
n
Overtemperature protection
n
Surface Mount Package,Tape and Reel
n
Workstations,Servers and Desktop computers
n
Adjustable output voltage (-5% to +10% for 0.9V output)
n
Distributed Power Architectures
n
Remote On/Off
n
Telecommunications Equipment
n
Wide Operating temperature range:-40 °C to +85 °C
n
LANs/WANs
n
n
Data processing Equipment
n
Latest generation IC’s (DSP, FPGA, ASIC) and Microprocessor-powered applications.
UL* 60950 Recognized, CSA† C22.2 No. 60950-00 Certified, and VDE‡ 0805 (IEC60950, 3rd edition) Licensed
Options
n
Remote Sense
Description
Austin Lynx™ power modules are non-isolated dc-dc converters that can deliver 10 A of output current with full load efficiency of 95% at 3.3 V output. These open frame modules in surface-mount-package enable designers to develop cost-and
space efficient solutions. Standard features include remote ON/OFF, 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.
This product is intended for integration into end-use equipment. All the required procedures for CE marking of end-use equipment should be followed. (The CE mark is placed on selected products.)
ISO is a registered trademark of the Internation Organization of Standards
Document Name: FDS02-034EPS ver.1.6
PDF Name: Austin Lynx SMT
Data Sheet
March 28, 2008
Austin LynxTM SMT Non-Isolated dc-dc Power Modules:
3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
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 reliabiltiy.
Device
Symbol
Min
Max
Unit
Input Voltage:Continuous
Parameter
All
VIN
0
6.5
Vdc
Operating Ambient Temperature
(See Thermal Considerations section)
All
TA
–40
85
°C
Storage Temperature
All
Tstg
–55
125
°C
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions.
Parameter
Operating Input Voltage
Device
Symbol
Min
AXH010A0S0R9-SR
AXH010A0S1R0-SR
AXH010A0P-SR
AXH010A0M-SR
AXH010A0Y-SR
AXH010A0D-SR
AXH010A0G-SR
AXH010A0F-SR
VIN
VIN
VIN
VIN
VIN
VIN
VIN
VIN
3.0
3.0
3.0
3.0
3.0
3.0
3.0
4.5
Maximum Input Current
(VI = 0 V to 75 V; IO = IO, max)
Typ
II, max
Input Reflected Ripple Current, peak-peak
(5 Hz to 20 MHz, 1µH source impedance
TA = 25 °C;CIN =200µF)
All
Input Ripple Rejection (120 Hz)
All
II
Max
Unit
5.5
5.5
5.5
5.5
5.5
5.5
5.5
5.5
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
9.5
Adc
30
mAp-p
40
dB
CAUTION: This power module is not internally fused. An input line fuse must always be used.
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 time-delay fuse with a maximum rating of 20A.
Lineage Power
2
Austin LynxTM SMT Non-Isolated dc-dc Power Modules:
3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Data Sheet
March 28, 2008
Electrical Specifications (continued)
Device
Symbol
Min
Typ
Max
Unit
Output Voltage Set Point
(VI =5 Vdc; IO = IO, max, TA = 25 °C)
Parameter
AXH010A0S0R9-SR
AXH010A0S1R0-SR
AXH010A0P-SR
AXH010A0M-SR
AXH010A0Y-SR
AXH010A0D-SR
AXH010A0G-SR
AXH010A0F-SR
VO,set
VO,set
VO,set
VO,set
VO,set
VO,set
VO,set
VO,set
0.886
0.985
1.182
1.47
1.764
1.97
2.45
3.234
0.9
1.0
1.2
1.5
1.8
2.0
2.5
3.3
0.914
1.015
1.218
1.53
1.836
2.03
2.55
3.366
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Output Voltage
(Over all operating input voltage, resistive load, and
temperature conditions at steady state until end of life.)
AXH010A0S0R9-SR
AXH010A0S1R0-SR
AXH010A0P-SR
AXH010A0M-SR
AXH010A0Y-SR
AXH010A0D-SR
AXH010A0G-SR
AXH010A0F-SR
VO
VO
VO
VO
VO
VO
VO
VO
0.873
0.970
1.164
1.455
1.746
1.94
2.425
3.2
—
—
—
—
—
—
—
—
0.927
1.03
1.236
1.545
1.854
2.06
2.575
3.4
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Output Regulation:
Line (VI = VI, min to VI, max)
Load (IO = IO, min to IO, max)
Temperature (TA = TA, min to TA, max)
All
All
All
—
—
—
—
—
—
0.2
0.4
0.5
Output Ripple and Noise
Measured across 10 µF Tantalum, 1µF Ceramic,,
RMS (5 Hz to 20 MHz bandwidth)
Peak-to-peak (5 Hz to 20 MHz bandwidth)
All
All
—
—
7
25
15
30
mVrms
mVp-p
Output Current
All
IO
0
—
10
Adc
Output Current-limit Inception
(VO = 90% of VO, set)
All
IO, lim
17
—
Adc
Output Short-circuit Current (Average)
Efficiency
(VI = VIN, nom; IO = IO, max), TA = 25 °C
Switching Frequency
%, VO, set
%, VO, set
%, VO, set
All
IO, s/c
—
3
—
Adc
AXH010A0S0R9-SR
AXH010A0S1R0-SR
AXH010A0P-SR
AXH010A0M-SR
AXH010A0Y-SR
AXH010A0D-SR
AXH010A0G-SR
AXH010A0F-SR
η
η
η
η
η
η
η
η
—
—
—
—
—
—
—
—
83
85
86
88
90
91
92
95
—
—
—
—
—
—
—
—
%
%
%
%
%
%
%
%
All
fSW
—
300
—
kHz
General Specifications
Parameter
Min
Calculated MTBF (IO = 80% of IO, max TA = 25 °C)
Lineage RIN (Reliability Infomation Notebook) Method
Weight
Lineage Power
Typ
Max
10,240,000
—
5.5(0.19)
Unit
Hours
6.5(0.23)
g (oz.)
3
Austin LynxTM SMT Non-Isolated dc-dc Power Modules:
3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Data Sheet
March 28, 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
Max
Unit
Von/off
Ion/off
6.5
10
V
µA
All
All
All
Von/off
Ion/off
—
0.3
1
V
mA
ms
AXH010A0S0R9-SR
All others
Vtrim
Vtrim
-5
-10
+10
+10
%VO, set
%VO, set
Overtemperature Protection (shutdown)
All
TQ1/TQ2
—
110
—
°C
Input Undervoltage Lockout
Turn-on Threshold
Turn-off Threshold
All
All
2.63
2.47
2.8
2.7
2.95
2.9
V
V
Remote On/Off Signal Interface
(VI = VI,min to VI, max; open collector npn or Compatible, Von/off
signal referenced to GND. See Figure 20 and Feature
Descriptions section)
Logic High (ON/OFF pin open—Module On)
Ion/off = 0.0 µA
Von/off = VI -0.4
Logic Low (VON/OFF < 0.3 V)—Module Off
Ion/off = 0.5 mA
Von/off = 0.3 V
Turn-on time
(IO = 80% of IO, max; VO within ±1% of steady state; see
Figure 12)
Output voltage set-point adjustment range (TRIM)
Lineage Power
Device
Symbol
All
Min
Typ
5
4
Austin LynxTM SMT Non-Isolated dc-dc Power Modules:
3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Data Sheet
March 28, 2008
Characteristic Curves
The following figures provide typical characteristics curves at room temperature (TA = 25 °C).
92
II, max = 9.5 A
90
10
EFFICIENCY, η (%)
INPUT CURRENT, II (A)
12
8
6
4
2
88
86
84
82
VI = 3.0 V
VI = 3.3 V
VI = 5.0 V
VI = 5.5 V
80
78
76
0
2
2.5
3
3.5
4
4.5
INPUT VOLTAGE, VI (V)
5
74
1
5.5
Figure 4.
Figure 1. Typical Input Characteristic at 10A Output
Current.
2
3
4
5
6
7
OUTPUT CURRENT, IO (A)
8
9
10
Converter Efficiency vs output current
AXH010A0S1R0-SR(1.0V Output Voltage).
90
100%
VI
VI
VI
VI
75%
=
=
=
=
EFFICIENCY, η (%)
NORMALIZED OUTPUT VOLTAGE, VO
92
5.5 V
5.0 V
3.3 V
3.0 V
50%
25%
86
84
0
3
6
9
12
OUTPUT CURRENT, IO (A)
82
78
1
18
15
Figure 5.
94
88
92
EFFICIENCY, η (%)
90
86
84
82
VI = 3.0 V
VI = 3.3 V
VI = 5.0 V
VI = 5.5 V
80
82
4
5
6
7
8
9
Converter Efficiency vs output current
AXH010A0S0R9-SR(0.9V Output Voltage).
Lineage Power
6
7
8
9
10
VI = 3.0 V
VI = 3.3 V
VI = 5.0 V
VI = 5.5 V
1
10
2
3
4
5
6
7
8
9
10
OUTPUT CURRENT, IO (A)
OUTPUT CURRENT, IO (A)
Figure 3.
5
Converter Efficiency vs output current
AXH010A0P-SR(1.2V Output Voltage).
86
76
3
4
88
84
2
3
90
78
1
2
OUTPUT CURRENT, IO (A)
Figure 2. Output Voltage and current characteristics.
74
VI = 3.0 V
VI = 3.3 V
VI = 5.0 V
VI = 5.5 V
80
0%
EFFICIENCY, η (%)
88
Figure 6.
Converter Efficiency vs output current
AXH010A0M-SR(1.5V Output Voltage).
5
Austin LynxTM SMT Non-Isolated dc-dc Power Modules:
3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Data Sheet
March 28, 2008
Characteristic Curves
The following figures provide typical characteristics curves at room temperature (TA = 25 °C)
97
96.5
92
EFFICIENCY, η (%)
EFFICIENCY, η (%)
94
90
VI = 3.0 V
VI = 3.3 V
VI = 5.0 V
VI = 5.5 V
88
86
84
1
2
3
4
5
6
7
8
9
96
95.5
95
94
93.5
1
10
VI = 4.5 V
VI = 5.0 V
VI = 5.5 V
94.5
2
OUTPUT CURRENT, IO (A)
AXH010A0SY-SR(1.8V Output Voltage).
OUTPUT VOLTAGE, VO (V)
(20 mV/div)
94
9
10
92
90
VI = 3.0 V
VI = 3.3 V
VI = 5.0 V
VI = 5.5 V
88
2
3
4
5
6
7
8
OUTPUT CURRENT, IO (A)
9
10
Figure 8. Converter Efficiency vs output current
VI = 3.3 V
VI = 5.0 V
VI = 5.5 V
TIME, t (2 µs/div)
Figure 11. Typical Output Ripple Voltage at 10A Output
Current.
AXH010A0D-SR(2.0V Output Voltage).
VIN SOURCE
98
96
94
92
VI = 3.0 V
VI = 3.3 V
VI = 5.0 V
VI = 5.5 V
90
88
1
2
3
4
5
6
7
OUTPUT CURRENT, IO (A)
8
9
10
OUTPUT VOLTAGE, VO (V)
EFFICIENCY, η (%)
8
VI = 3.0 V
96
EFFICIENCY, η (%)
4
5
6
7
OUTPUT CURRENT, IO (A)
Figure 10. Converter Efficiency vs output current
AXH010A0F-SR(3.3V Output Voltage).
Figure 7. Converter Efficiency vs output current
86
1
3
TIME, t (2 ms/div)
Figure 9.
Converter Efficiency vs output current
AXH010A0G-SR(2.5V Output Voltage).
Lineage Power
Figure 12. Typical Start-up Transient.
6
Austin LynxTM SMT Non-Isolated dc-dc Power Modules:
3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Data Sheet
March 28, 2008
Characteristic Curves
OUTPUT CURRENT IO
( 2.5 A/div)
OUTPUT VOLTAGE VO
(100 mV/div)
The following figures provide typical characteristics curves at room temperature (TA = 25 °C)
TIME, t (5 µs/div)
Figure 13. Typical Transient Response to Step Load
OUTPUT CURRENT IO
( 2.5 A/div)
OUTPUT VOLTAGE VO
(100 mV/div)
Change at 2.5 A/µs from 100% to 50% of
IO,max at 3.3 V Input
(COUT = 1 µF ceramic, 10 µF Tantalum).
TIME, t (5 µs/div)
Figure 14. Typical Transient Response to Step Load
Change at 2.5 A/µs from 50% to 100% of
IO,max at 3.3 V Input
(COUT = 1 µF ceramic, 10 µF Tantalum).
Lineage Power
7
Austin LynxTM SMT Non-Isolated dc-dc Power Modules:
3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Data Sheet
March 28, 2008
Test Configurations
Design Considerations
Input Source Impedance
L
VI (+)
1 µH
CS 220 μF
ESR < 0.1 Ω
@ 20 °C, 100 kHz
BATTERY
2 x 100µF
Tantalum
VI (–)
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 15. Input Reflected Ripple Current Test Setup.
To maintain low-noise and ripple at the input voltage, it is
critical to use low ESR capacitors at the input to the module.
18 shows the input ripple voltage (mVp-p) for various output
models using a 150 µF low ESR polymer capacitor (Panasonic p/n: EEFUE0J151R, Sanyo p/n: 6TPE150M) in parallel
with 47 µF ceramic capacitor (Panasonic p/n: ECJ5YB0J476M,
Taiyo Yuden p/n: CEJMK432BJ476MMT). 19 depicts much
lower input voltage ripple when input capacitance is
increased to 450 µF (3 x 150 µF) polymer capacitors in parallel with 94 µF (2 x 47 µF) ceramic capacitor.
The input capacitance should be able to handle an AC ripple
current of at least:
V out
V out
A rms
I rms = I out ----------- 1 – ----------V in
V in
COPPER STRIP
1µF
10 µF
CERAMIC
TANTALUM
SCOPE
RESISTIVE
LOAD
GND
Note: Scope measurements should be made using a BNC socket,
with a 10 µF tantalum capacitor and a 1 µF ceramic capcitor.
Position the load between 51 mm and 76 mm (2 in and 3 in)
from the module
Figure 16. Peak-to-Peak Output Ripple Measurement
Test Setup.
INPUT VOLTAGE NOISE (mV p-p)
200
VO
150
100
VI = 5 V
VI = 3.3 V
50
0
0.5
1
1.5
2
2.5
OUTPUT VOLTAGE, VO (Vdc)
3
Figure 18. Input Voltage Ripple for Various
Output Models, IO = 10 A
(CIN = 150 µF polymer // 47 µF ceramic).
CONTACT AND
DISTRIBUTION LOSSES
VO
100
IO
SUPPLY
LOAD
GND
CONTACT RESISTANCE
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 17. Output Voltage and Efficiency Test Setup.
[ V O(+) – V O(-) ] × I O
η = ⎛ ------------------------------------------------⎞ × 100
⎝ [ V I(+) – V I(-) ] × I I ⎠
Lineage Power
INPUT VOLTAGE NOISE (mV p-p)
VI
II
75
50
25
0
0.5
VI = 5 V
VI = 3.3 V
1
1.5
2
2.5
OUTPUT VOLTAGE, VO (Vdc)
3
Figure 19. Input Voltage Ripple for Various
Output Models, IO = 10 A (CIN = 3x150 µF
polymer // 2x47 µF ceramic).
8
Data Sheet
March 28, 2008
Austin LynxTM SMT Non-Isolated dc-dc Power Modules:
3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Design Considerations (continued)
Input Source Impedance (continued)
The power module should be connected to a low ac-impedance input source. Highly inductive source impedances can
affect the stability of the module. An input capacitance must
be placed close to the input pins of the module, to filter ripple
current and ensure module stability in the presence of inductive traces that supply the input voltage to the module.
Safety Considerations
For safety-agency approval of the system in which the power
module is used, the power module must be installed in compliance with the spacing and separation requirements of the
end-use safety agency standard, i.e., UL60950, CSA C22.2
No. 60950-00, and VDE 0805:2001-12 (IEC60950, 3rd Ed).
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 maximum 20
A time-delay fuse in the ungrounded lead.
Lineage Power
9
Austin LynxTM SMT Non-Isolated dc-dc Power Modules:
3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Data Sheet
March 28, 2008
Feature Descriptions
Table 1. Austin Lynx™ Trim Values
Remote On/Off
The Austin Lynx™ 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 GND pin (see Figure 20).
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 leakage current of the transistor
when Von/off = (VI –0.4) is 10 µA. The module is Off when
the On/Off pin is pulled low (Logic-low) with the transistor in
the active state. During this state VOn/Off is less than 0.3V
and the maximum IOn/Off = 1 mA.
VO, set
Rbuffer
3.3 V
2.5 V
2.0 V
1.8 V
1.5 V
1.2 V
1.0 V
0.9 V
59 kΩ
78.7 kΩ
100 kΩ
100 kΩ
100 kΩ
59 kΩ
30.1 kΩ
5.11 kΩ
Note: VO, set is the typical output voltage for the unit.
For example, to trim-up the output voltage of 1.5V
module (AXH010A0M-SR) by 8% to 1.62V, Rtrim-up is calculated as follows:
ΔV out = 0.12V
R buffer = 100kΩ
VI
Vo
Ion/off
24080
R trim – up = --------------- – 100k
0.12
ON/OFF
R trim – up = 100.66kΩ
+
Von/off
AXH010A0M-SR
AXH010A0M9-SR
GND
VO
RLOAD
Figure 20. Remote On/Off Implementation.
TRIM
Rtrim-up
Output Voltage Set-Point Adjustment (Trim)
GND
Output voltage set-point adjustment allows the output voltage set point to be increased or decreased by connecting
either an external resistor or a voltage source between the
TRIM pin and either the VO pin (decrease output voltage) or
GND pin (increase output voltage).
Figure 21. Circuit Configuration to trim-up
output voltage.
For TRIM-UP using an external resistor, connect Rtrim-up
between the TRIM and GND pins (21). The value of Rtrimup defined as:
24080
R trim – up = ------------------ – R buffer
kΩ
ΔV out
For trim-down using an external resistor, connect Rtrimdown between the TRIM and VOUT pins of the module (22).
The value of Rtrim-down is defined as:
|ΔVout| is the desired output voltage set-point adjustment
Rbuffer (internal to the module) is defined in Table 1 for various models
V out – 0.8
R trim-down = ⎛ ------------------------- – 1⎞ x30100 – R buffer
⎝ ΔV out
⎠
kΩ
Vout is the typical set point voltage of a module
|DVout| is the desired output voltage adjustment
Rbuffer (internal to the module) is defined in Table 1 for various models
For example, to trim-down the output voltage of 2.5 V module (AXH010G-SR) by 8% to 2.3V, Rtrim-down is calculated
as follows:
Lineage Power
10
Austin LynxTM SMT Non-Isolated dc-dc Power Modules:
3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Data Sheet
March 28, 2008
mation at the end of this document for more information.
Feature Descriptions (continued)
Output Voltage Set-Point Adjustment (Trim) (continued)
V out = 2.5V
Remote Sense minimizes the effects of distribution losses by
regulating the voltage at the load via the SENSE and GND
connections (See 23). The voltage between the SENSE pin
and VO pin must not exceed 0.5V. Although both the
Remote-Sense and Trim features can each 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 the Trim.
The amount of power delivered by the module is defined as
the output voltage multiplied by the output current (VO x IO).
When using SENSE and/or TRIM, the output voltage of the
module can increase which, if the same output current 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 pin 3 is present
but the Remote Sense feature is not being used, leave Sense
pin disconnected.
R buffer = 78.7k
2.5 – 0.8
R trim – down = ⎛ --------------------- – 1⎞ x30100 – 78700
⎝ 0.2
⎠
R trim – down = 147.05kΩ
VO
VI
VO
SENSE
Rtrim-down
TRIM
GND
LOAD
RLOAD
DISTRIBUTION LOSSES
GND
Figure 22. Circuit Configuration to trim-down
output voltage.
For Trim-up using an external voltage source, apply a voltage
from TRIM pin to ground using the following equation:
R buffer
V trim-up = 0.8 – ΔV out x -----------------30100
For Trim-down using an external voltage source, apply a voltage from TRIM pin to ground using the following equation:
R buffer
V trim-down = 0.8 + ΔV out x -----------------30100
Vtrim-up is the external source voltage for trim-up
Vtrim-down is the external source voltage for trim-down
|ΔVout| is the desired output voltage set-point adjustment
Rbuffer (internal to the module) is defined in Table 1 for various models
DISTRIBUTION LOSSES
Figure 23. Effective Circuit Configuration for Remote
Sense Operation.
Overtemperature Protection
To provide additional protection in a fault condition, the unit is
equipped with a nonlatched thermal shutdown circuit. The
shutdown circuit engages when Q1 or Q2 (shown in Figure
24) exceeds approximately 110 °C. The unit attempts to
restart when Q1 or Q2 cool down and cycles on and off while
the fault condition exists. Recovery from shutdown is accomplished when the cause of the overtemperature condition is
removed.
Overcurrent Protection
To provide protection in a fault condition, the unit is equipped
with internal overcurrent protection. The unit operates normally once the fault condition is removed.
The power module will supply up to 170% of rated current for
less than 1.25 seconds before it enters thermal shutdown.
If the TRIM feature is not being used, leave the TRIM pin disconnected.
Remote Sense
Austin Lynx™ SMT power modules offer an option for a
Remote-Sense function. When the Device Code description
includes a suffix “3”, pin 3 is added to the module and the
Remote-Sense is an active feature. See the Ordering InforLineage Power
11
Austin LynxTM SMT Non-Isolated dc-dc Power Modules:
3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Data Sheet
March 28, 2008
Thermal Considerations
The power module operates in a variety of thermal environments; however, sufficient cooling should be provided to
help ensure reliable operation of the unit. Heat is removed
by conduction, convection, and radiation to the surrounding
environment.
25.4
(1.0)
Wind Tunnel
PWBs
Power Module
The thermal data presented is based on measurements
taken in a wind tunnel. The test setup shown in Figure 25
was used to collect data for Figures 26
and 27. Note that the airflow is parallel to the short axis of
the module as shown in Figure 24. The derating data applies
to airflow along either direction of the module’s short axis.
76.2
(3.0)
x
Pin 6
8.3
(0.33)
Q2
Q1
Probe Location
for measuring
airflow and
ambient
temperature
Air
flow
Figure 25. Thermal Test Setup.
AIRFLOW
12
Figure 24. Temperature Measurement Location.
The temperature at either location should not exceed
110 °C. The output power of the module should not exceed
the rated power for the module (VO, set x IO, max).
Output Current IO (A)
10
8
2.0 m/s (400 ft./min.)
1.0 m/s (200 ft./min.)
0.5 m/s (100 ft./min.)
NATURAL CONVECTION
6
4
2
Convection Requirements for Cooling
0
To predict the approximate cooling needed for the module,
refer to the Power Derating curves in Figures 26 and 27.
Proper cooling can be verified by measuring the power module’s temperature at Q1-pin 6 and Q2-pin 6 as shown in Figure 24.
30
40
50
60
70
Ambient Temperature TA (˚C)
80
90
Figure 26. Typical Power Derating Vs Output Current
for 3.3 VIN.
8
7
OUTPUT CURRENT, IO (A)
These derating curves are approximations of the ambient
temperatures and airflows required to keep the power module temperature below its maximum rating. Once the module
is assembled in the actual system, the module’s temperature
should be checked as shown in Figure 24 to ensure it does
not exceed 110 °C.
20
6
2.0 m/s (400 ft./min.)
1.0 m/s (200 ft./min.)
0.5 m/s (100 ft./min.)
NATURAL CONVECTION
5
4
3
2
1
0
20
30
40
50
60
70
AMBIENT TEMPERATURE, TA (˚C)
80
90
Figure 27. Typical Power Derating Vs Output Current
for 5.0VIN.
Lineage Power
12
Data Sheet
March 28, 2008
Austin LynxTM SMT Non-Isolated dc-dc Power Modules:
3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Layout Considerations
Copper paths must not be routed beneath the power module.
Surface Mount Information
Pick and Place Area
Although the module weight is minimized by using openframe construction, the modules have a relatively large mass
compared to conventional surface-mount components. To
optimize the pick-and-place process, automated vacuum
equipment variables such as nozzle size, tip style, vacuum
pressure, and placement speed should be considered. Austin
Lynx™ SMT modules have a flat surface which serves as a
pick-and-place location for automated vacuum equipment.
The module’s pick-and-place location is identified by the target symbol on the top label as shown in Figure 28.
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 235 oC
250
Cooling
zone
1-4oCs -1
Heat zone
max 4oCs -1
200
150
Soak zone
30-240s
100
50
Tlim above
205 o C
Preheat zone
max 4oCs -1
0
REFLOW TIME (S)
Figure 29. Reflow Profile.
240
235
230
225
Figure 28. Pick and Place Location.
220
215
210
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
nozzle diameter for reliable operation is 3mm. The maximum
nozzle outer diameter, which will safely fit within the allowable
component spacing, is 12 mm max.
Tin Lead Soldering
The Austin LynxTM 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
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.
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
Lineage Power
205
200
0
10
20
30
TIME (S)
40
50
60
Figure 30. Time Limit curve above 2050C.
Lead Free Soldering
The –Z version Austin Lynx SMT modules are lead-free (Pbfree) and RoHS compliant and are both forward and backward compatible in a Pb-free and a SnPb soldering process.
Failure to observe the instructions below may result in the
failure of or cause damage to the modules and can adversely
affect long-term reliability.
Pb-free Reflow Profile
Power Systems will comply with J-STD-020 Rev. C (Moisture/Reflow Sensitivity Classification for Nonhermetic Solid
State Surface Mount Devices) for both Pb-free solder profiles
and MSL classification procedures. This standard provides a
recommended forced-air-convection reflow profile based on
the volume and thickness of the package (table 4-2). The
suggested Pb-free solder paste is Sn/Ag/Cu (SAC). The recommended linear reflow profile using Sn/Ag/Cu solder is
shown in Figure. 31.
13
Austin LynxTM SMT Non-Isolated dc-dc Power Modules:
3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Data Sheet
March 28, 2008
Surface Mount Information (continued)
MSL Rating
The Austin LynxTM SMT modules have a MSL rating of 1.
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 Lineage
Power Board Mounted Power Modules: Soldering and
Cleaning Application Note (AP01-056EPS).
300
Per J-STD-020 Rev. C
Peak Temp 260°C
Reflow Tem p (°C )
250
200
* Min. Time Above 235°C
15 Seconds
Cooling
Zone
150
Heating Zone
1°C/Second
*Time Above 217°C
60 Seconds
100
50
0
Reflow Time (Seconds)
Figure 31. Recommended linear reflow profile using Sn/
Ag/Cu solder.
Solder Ball and Cleanliness Requirements
The open frame (no case or potting) power module will meet
the solder ball requirements per J-STD-001B. These requirements state that solder balls must neither be loose nor violate
the power module minimum electrical spacing.
The cleanliness designator of the open frame power module
is C00 (per J specification).
Lineage Power
14
Austin LynxTM SMT Non-Isolated dc-dc Power Modules:
3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Data Sheet
March 28, 2008
Surface-Mount Tape and Reel
PICK POINT
0.945
(24.0)
0.995
(25.2)
0.158
(4.0)
TOP COVER TAPE
EMBOSSED CARRIER
FEED
DIRECTION
0.33
(8.38)
1.45
(36.8)
1.73
(44.0)
1.59
(40.4)
TOP COVER TAPE
EMBOSSED CARRIER
NOTE: CONFORMS TO EAI-481 REV. A STANDARD
Lineage Power
15
Austin LynxTM SMT Non-Isolated dc-dc Power Modules:
3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Data Sheet
March 28, 2008
Mechanical Outline Diagram
Dimensions are in millimeters and (inches).
Tolerances: x.x ± 0.5 mm (0.02 in.), x.xx ± 0.25 mm (0.010 in.), unless otherwise noted.
BOTTOM VIEW OF BOARD
SIDE VIEW
8.28
(0.326)
33.00
(1.300)
7.87
(0.310)
4.83
4.83
4.83
(0.190) (0.190) (0.190)
GND
VOUT
TRIM
7.54
(0.297)
See Note
1.58
(0.062)
MAXIMUM
SENSE
10.29
(0.405)
1.57
(0.062)
13.46
(0.530)
VIN
ON/OFF
2.84
(0.112)
Lineage Power
SURFACE MOUNT CONTACT
848667093
1.22
6 PLACES
(0.048)
LI INDUCTOR
1.91 (0.075)
16
Austin LynxTM SMT Non-Isolated dc-dc Power Modules:
3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Data Sheet
March 28, 2008
Recommended Pad Layout
Dimensions are in millimeters and (inches).
Tolerances: x.x ± 0.5 mm (0.02 in.), x.xx ± 0.25 mm (0.010 in.), unless otherwise noted.
7.54
(0.297)
4.83
(0.190)
SENSE
4.83
(0.190)
4.83
(0.190)
TRIM
VOUT
7.87
(0.310)
GND
10.29
(0.405)
10.92
(0.430)
VIN
ON/OFF
0.64
(0.025)
29.90
(1.177)
PAD SIZE
MIN: 3.556 X 2.413 (0.140 X 0.095)
MAX: 4.19 X 2.79 (0.165 X 0.110)
Lineage Power
17
Austin LynxTM SMT Non-Isolated dc-dc Power Modules:
3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Data Sheet
March 28, 2008
Ordering Information
Please contact your Lineage Power Sales Representative for pricing, availability and optional features.
Table 2. Device Codes without TRIM
Input Voltage
Output
Voltage
Output
Current
Efficiency
Connector Type
Device Code
Comcodes
3.0 – 5.5 Vdc
3.0 – 5.5 Vdc
3.0 – 5.5 Vdc
3.0 – 5.5 Vdc
3.0 – 5.5 Vdc
3.0 – 5.5 Vdc
3.0 – 5.5 Vdc
4.5 – 5.5 Vdc
3.0 – 5.5 Vdc
3.0 – 5.5 Vdc
3.0 – 5.5 Vdc
4.5 – 5.5 Vdc
0.9 V
1.0 V
1.2 V
1.5 V
1.8 V
2.0 V
2.5 V
3.3 V
1.5 V
1.8 V
2.5 V
3.3 V
10 A
10 A
10 A
10 A
10 A
10 A
10 A
10 A
10 A
10 A
10 A
10 A
83
85
86
88
90
91
92
95
88
90
92
95
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
AXH010A0R0S9-SR
AXH010A0R1S0-SR
AXH010A0P-SR
AXH010A0M-SR
AXH010A0Y-SR
AXH010A0D-SR
AXH010A0G-SR
AXH010A0F-SR
AXH010A0M-SRZ
AXH010A0Y-SRZ
AXH010A0G-SRZ
AXH010A0F-SRZ
108967597
108967605
108967571
108967563
108967589
108967530
108967555
108967548
CC109104915
CC109104956
CC109104907
CC109106886
Table 3. Device Codes with TRIM
Input Voltage
Output
Voltage
Output
Current
Efficiency
Connector Type
Device Code
Comcodes
3.0 – 5.5 Vdc
3.0 – 5.5 Vdc
3.0 – 5.5 Vdc
3.0 – 5.5 Vdc
3.0 – 5.5 Vdc
3.0 – 5.5 Vdc
3.0 – 5.5 Vdc
4.5 – 5.5 Vdc
3.0 – 5.5 Vdc
3.0 – 5.5 Vdc
3.0 – 5.5 Vdc
3.0 – 5.5 Vdc
4.5 – 5.5 Vdc
0.9 V
1.0 V
1.2 V
1.5 V
1.8 V
2.0 V
2.5 V
3.3 V
1.2 V
1.5 V
1.8 V
2.5 V
3.3 V
10 A
10 A
10 A
10 A
10 A
10 A
10 A
10 A
10 A
10 A
10 A
10 A
10 A
83
85
86
88
90
91
92
95
86
88
90
92
95
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
SMT
AXH010A0R0S99-SR
AXH010A0R1S09-SR
AXH010A0P9-SR
AXH010A0M9-SR
AXH010A0Y9-SR
AXH010A0D9-SR
AXH010A0G9-SR
AXH010A0F9-SR
AXH010A0P9-SRZ
AXH010A0M9-SRZ
AXH010A0Y9-SRZ
AXH010A0G9-SRZ
AXH010A0F9-SRZ
108966177
108966110
108966144
108966136
108966169
108966102
108966128
108966094
CC109105896
CC109101417
CC109101425
CC109102935
CC109106878
Lineage Power
18
Austin LynxTM SMT Non-Isolated dc-dc Power Modules:
3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Data Sheet
March 28, 2008
Ordering Information (continued)
Optional remote sense feature can be ordered using suffix 3 shown in Table 4. For example, a AXH010A0Y-SR with remote
sense is AXH010A0Y3-SR
Table 4. Device Options
Option
Remote Sense
RoHS Compliant
Suffix
3
-Z
A sia-Pacific Head qu art ers
T el: +65 6 41 6 4283
World W ide Headq u arters
Lin eag e Po wer Co rp oratio n
30 00 Sk yline D rive, Mesquite, T X 75149, U SA
+1-800-526-7819
(Outs id e U .S.A .: +1- 97 2-2 84 -2626)
www.line ag ep ower.co m
e-m ail: tech sup port1@ lin ea gep ower.co m
Eu ro pe, M id dle-East an d Afric a He ad qu arters
T el: +49 8 9 6089 286
Ind ia Head qu arters
T el: +91 8 0 28411633
Lineage Power reserves the right to make changes to the produc t(s) or information contained herein without notice. No liability is ass umed as a res ult of their use or
applic ation. No rights under any patent acc ompany the sale of any s uc h pr oduct(s ) or information.
© 2008 Lineage Power Corpor ation, (Mesquite, Texas ) All International Rights Res er ved.
Document Name: FDS02-034EPS ver.1.6
PDF Name: Austin Lynx SMT
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