ATM030A0X3-SRHZ [LINEAGEPOWER]
2.7 - 4.0Vdc input; 0.8 to 2.0Vdc Output; 30A output current; 2.7 - 4.0Vdc输入; 0.8〜 2.0Vdc输出; 30A的输出电流
| 型号： | ATM030A0X3-SRHZ |
| 厂家： | 
LINEAGE POWER CORPORATION |
| 描述： | 2.7 - 4.0Vdc input; 0.8 to 2.0Vdc Output; 30A output current |
| 文件： | 总22页 (文件大小：642K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Data Sheet
October 21, 2009
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
2.7Vdc – 4.0Vdc input; 0.8 to 2.0Vdc; 30A Output Current
RoHS Compliant
Features
Compliant to RoHS EU Directive 2002/95/EC
Compatible in a Pb-free or SnPb reflow
environment
Delivers up to 30A of output current
High efficiency – 92% @ 1.8V full load
(VIN=3.3Vdc)
Input voltage range from 2.7V to 4.0Vdc
Output voltage programmable from 0.8 to 2.0Vdc
Small size and low profile:
o
o
33.0 mm x 9.1 mm x 13.5 mm
(1.30 in. x 0.36 in. x 0.53 in.)
Monotonic start-up into pre-biased output
Output voltage sequencing (EZ-SEQUENCE TM
Remote On/Off
)
Applications
Distributed power architectures
Remote Sense
Intermediate bus voltage applications
Telecommunications equipment
Servers and storage applications
Networking equipment
Over current and Over temperature protection
Parallel operation with active current sharing
Wide operating temperature range (-40°C to 85°C)
UL* 60950 Recognized, CSA† C22.2 No. 60950-00
Certified, and VDE‡ 0805 (EN60950-1 3rd edition)
Licensed
ISO** 9001 and ISO 14001 certified manufacturing
facilities
Description
The Austin MegaLynx ATM series SMT power modules are non-isolated DC-DC converters in an industry standard
package that can deliver up to 30A of output current with a full load efficiency of 92% at 1.8Vdc output voltage (VIN
3.3Vdc). These modules operate off an input voltage from 2.7 to 4.0Vdc and provide an output voltage that is
programmable from 0.8 to 2.0Vdc. They have a sequencing feature that enables designers to implement various
types of output voltage sequencing when powering multiple modules on the board. Additional features include
remote On/Off, adjustable output voltage, remote sense, over current, over temperature protection and active
current sharing between modules.
=
*
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: DS06-130 ver. 1.05
PDF No: ATM030A0X3-SR_ds.pdf
Data Sheet
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
2.7 – 4.0Vdc input; 0.8 to 2.0Vdc Output; 30A output current
October 21, 2009
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
All
All
VIN
VsEQ
TA
-0.3
-0.3
-40
4.0
4.0
85
Vdc
Vdc
°C
Sequencing pin voltage
Operating Ambient Temperature
(see Thermal Considerations section)
Storage Temperature
All
Tstg
-55
125
°C
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions.
Parameter
Device
Symbol
Min
Typ
Max
Unit
Operating Input Voltage
All
VIN
2.7
3.3
4.0
Vdc
Maximum Input Current
(VIN= VIN,min , VO= VO,set, IO=IO, max
All
All
IIN,max
I2 t
20
1
Adc
A2 s
)
Inrush Transient
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 1μH source impedance; VIN=2.7V to 4.0V, IO=
IOmax ; See Figure 1)
All
All
100
50
mAp-p
dB
Input Ripple Rejection (120Hz)
LINEAGE POWER
2
Data Sheet
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
2.7 – 4.0Vdc input; 0.8 to 2.0Vdc Output; 30A output current
October 21, 2009
Electrical Specifications (continued)
Parameter
Device
Symbol
Min
Typ
Max
Unit
Output Voltage Set-point
(VIN=VIN,nom, IO=IO, nom, Tref=25°C)
Output Voltage
All
VO, set
-1.5
+1.5
% VO, set
⎯
(Over all operating input voltage, resistive load,
and temperature conditions until end of life)
All
All
VO, set
–3.0
0.8
+3.0
2.0
% VO, set
Vdc
⎯
Adjustment Range
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
0.1
0.4
1
% VO, set
% VO, set
% VO, set
⎯
⎯
⎯
⎯
⎯
)
)
0.5
Output Ripple and Noise on nominal output
(VIN=VIN, nom and IO=IO, min to IO, max
COUT = 0.1μF // 10 μF ceramic capacitors)
Peak-to-Peak (5Hz to 20MHz bandwidth)
External Capacitance
Vo ≤ 2.0V
50
mVpk-pk
⎯
ESR ≥ 1 mΩ
All
CO, max
CO, max
Io
0
0
2,000
10,000
30
μF
μF
⎯
⎯
ESR ≥ 10 mΩ
All
Vo ≤ 3.63V
All
Output Current
0
Adc
Output Current Limit Inception (Hiccup Mode)
Output Short-Circuit Current
(VO≤250mV) ( Hiccup Mode )
Efficiency
IO, lim
IO, s/c
104
⎯
140
3.5
160
% Iomax
Adc
All
⎯
VO,set = 0.8dc
VO,set = 1.25Vdc
VO,set = 1.8Vdc
All
η
η
83.5
87.9
91.6
270
%
%
VIN=VIN, nom, TA=25°C
IO=IO, max , VO= VO,set
η
%
Switching Frequency, Fixed
Dynamic Load Response
(dIO/dt=5A/μs; VIN=VIN, nom; TA=25°C)
fsw
kHz
⎯
⎯
Load Change from Io= 50% to 100% of
IO,max; No external output capacitors
Peak Deviation
All
All
Vpk
ts
380
50
mV
⎯
⎯
⎯
⎯
Settling Time (VO<10% peak deviation)
μs
(dIO/dt=5A/μs; VIN=VIN, nom; TA=25°C)
Load Change from IO= 100% to 50%of IO, max
No external output capacitors
:
Peak Deviation
All
All
Vpk
ts
380
50
mV
⎯
⎯
⎯
⎯
Settling Time (VO<10% peak deviation)
μs
LINEAGE POWER
3
Data Sheet
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
2.7 – 4.0Vdc input; 0.8 to 2.0Vdc Output; 30A output current
October 21, 2009
Electrical Specifications (continued)
Parameter
Device
Symbol
Min
Typ
Max
Unit
Dynamic Load Response
(dIO/dt=5A/μs; VIN=VIN, nom; TA=25°C)
Load Change from Io= 50% to 100% of Io,max;
2x150 μF polymer capacitor
Peak Deviation
All
All
Vpk
ts
350
40
mV
⎯
⎯
⎯
⎯
Settling Time (VO<10% peak deviation)
μs
(dIO/dt=5A/μs; VIN=VIN, nom; TA=25°C)
Load Change from Io= 100% to 50%of IO,max
:
2x150 μF polymer capacitor
Peak Deviation
All
All
Vpk
ts
250
60
mV
⎯
⎯
⎯
⎯
Settling Time (VO<10% peak deviation)
μs
General Specifications
Parameter
Min
Typ
Max
Unit
Calculated MTBF (VO= 1.2Vdc, IO= 0.8IO, max, TA=40°C)
Per Telecordia Method
3,443,380
6.2 (0.22)
Hours
g (oz.)
Weight
⎯
⎯
LINEAGE POWER
4
Data Sheet
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
2.7 – 4.0Vdc input; 0.8 to 2.0Vdc Output; 30A output current
October 21, 2009
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=VIN, min to VIN, max ; open collector or equivalent,
Signal referenced to GND)
Logic High (Module OFF)
Input High Current
All
All
IIH
0.5
2.5
3.3
mA
V
⎯
⎯
Input High Voltage
VIH
VIN, max
Logic Low (Module ON)
Input Low Current
All
All
IIL
200
1.2
µA
V
⎯
⎯
⎯
Input Low Voltage
VIL
-0.3
Turn-On Delay and Rise Times
(VIN=VIN, nom, IO=IO, max , VO to within ±1% of steady state)
Case 1: On/Off input is enabled and then
input power is applied (delay from instant at
which VIN = VIN, min until Vo = 10% of Vo, set)
All
All
Tdelay
Tdelay
―
―
2.5
2.5
5
5
msec
msec
Case 2: Input power is applied for at least one second and
then the On/Off input is enabled (delay from instant at which
Von/Off is enabled until Vo = 10% of Vo, set)
All
Trise
2
10
msec
Output voltage Rise time (time for Vo to rise from
10% of Vo, set to 90% of Vo, set)
Output voltage overshoot
3.0
% VO, set
IO = IO, max; VIN, min – VIN, max, TA = 25 oC
Remote Sense Range
All
All
0.5
V
⎯
⎯
⎯
Over temperature Protection
Tref
125
°C
⎯
(See Thermal Consideration section)
Sequencing Slew rate capability
(VIN, min to VIN, max; IO, min to IO, max VSEQ < Vo)
Sequencing Delay time (Delay from VIN, min
to application of voltage on SEQ pin)
All
dVSEQ/dt
—
2
V/msec
All
All
TsEQ-delay
VSEQ –Vo
VSEQ –Vo
10
msec
mV
Tracking Accuracy
Power-up (2V/ms)
Power-down (1V/ms)
100
200
200
400
mV
(VIN, min to VIN, max; IO, min - IO, max VSEQ < Vo)
Input Undervoltage Lockout
Turn-on Threshold
All
All
-P
-P
2.2
5
Vdc
Vdc
% Io
Turn-off Threshold
1.7
10
Forced Load Share Accuracy
Number of units in Parallel
⎯
LINEAGE POWER
5
Data Sheet
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
2.7 – 4.0Vdc input; 0.8 to 2.0Vdc Output; 30A output current
October 21, 2009
Characteristic Curves
The following figures provide typical characteristics for the ATM030A0X3-SR & -SRH (0.8V, 30A) at 25oC.
95
90
85
80
75
70
65
35
30
25
20
15
10
5
2.5m/s
500 LFM
Vin = 3.0V
0.5m/s
100 LFM
1m/s
200 LFM
NC
Vin = 3.3V
Vin = 3.9V
1.5m/s
300 LFM
2.0m/s
400 LFM
0
0
5
10
15
20
25
30
30
40
50
60
70
80
OUTPUT CURRENT, IO (A)
AMBIENT TEMPERATURE, TA OC
Figure 4. Derating Output Current versus Ambient
Temperature and Airflow (ATM030A0X3-SR).
Figure 1. Converter Efficiency versus Output Current.
35
2.5m/s (500LFM)
30
NC
0.5m/s (100LFM)
25
1m/s (200LFM)
1.5m/s (300LFM)
20
2m/s (400LFM)
15
30
40
50
60
70
80
AMBIENT TEMPERATURE, TA OC
TIME, t (1μs/div)
Figure 2. Typical output ripple and noise (VIN = VIN,NOM,
Io = Io,max).
Figure 5. Derating Output Current versus Ambient
Temperature and Airflow (ATM030A0X3-SRH).
TIME, t (5ms/div)
TIME, t (50μs /div)
Figure 3. Transient Response to Dynamic Load Change Figure 6. Typical Start-up Using Input Voltage (VIN =
from 0% to 50% to 0% of full load.
VIN,NOM, Io = Io,max).
LINEAGE POWER
6
Data Sheet
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
2.7 – 4.0Vdc input; 0.8 to 2.0Vdc Output; 30A output current
October 21, 2009
Characteristic Curves
The following figures provide typical characteristics for the ATM030A0X3-SR and -SRH (1.25V, 30A) at 25oC.
95
90
85
80
75
70
65
35
30
25
20
15
10
5
Vin = 3.0V
2.5m/s
500 LFM
Vin = 3.3V
Vin = 3.9V
0.5m/s
100 LFM
NC
1m/s
200 LFM
1.5m/s
300 LFM
2.0m/s
400 LFM
0
0
5
10
15
20
25
30
30
40
50
60
70
80
AMBIENT TEMPERATURE, TA OC
OUTPUT CURRENT, IO (A)
Figure 10. Derating Output Current versus Ambient
Temperature and Airflow (ATM030A0X3-SR).
Figure 7. Converter Efficiency versus Output Current.
35
2.5m/s (500LFM)
2m/s (400LFM)
30
NC
0.5m/s (100LFM)
25
1m/s (200LFM)
1.5m/s (300LFM)
20
30
40
50
60
70
80
AMBIENT TEMPERATURE, TA OC
TIME, t (1μs/div)
Figure 8. Typical output ripple and noise (VIN = VIN,NOM,
Io = Io,max).
Figure 11. Derating Output Current versus Ambient
Temperature and Airflow (ATM030A0X3-SRH).
TIME, t (5ms/div)
TIME, t (50μs /div)
Figure 9. Transient Response to Dynamic Load Change Figure 12. Typical Start-up Using Input Voltage (VIN =
from 0% to 50% to 0% of full load.
VIN,NOM, Io = Io,max).
LINEAGE POWER
7
Data Sheet
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
2.7 – 4.0Vdc input; 0.8 to 2.0Vdc Output; 30A output current
October 21, 2009
Characteristic Curves
The following figures provide typical characteristics for the ATM030A0X3-SR and –SRH (1.8V, 30A) at 25oC.
35
30
25
20
15
10
5
100
95
90
85
80
75
70
2.5m/s
500 LFM
Vin = 3.0V
0.5m/s
100 LFM
1m/s
200 LFM
NC
Vin = 3.3V
Vin = 3.9V
1.5m/s
300 LFM
2.0m/s
400 LFM
0
30
40
50
60
70
80
0
5
10
15
20
25
30
OUTPUT CURRENT, IO (A)
AMBIENT TEMPERATURE, TA OC
Figure 13. Converter Efficiency versus Output
Current.
Figure 16. Output Current Derating versus Ambient
Temperature and Airflow (ATM030A0X3-SR).
35
2.5m/s (500LFM)
30
NC
0.5m/s (100LFM)
25
1m/s (200LFM)
1.5m/s (300LFM)
20
2m/s (400LFM)
15
30
40
50
60
70
80
AMBIENT TEMPERATURE, TA OC
TIME, t (1μs/div)
Figure 14. Typical output ripple and noise (VIN =
VIN,NOM, Io = Io,max).
Figure 17. Output Current Derating versus Ambient
Temperature and Airflow (ATM030A0X3-SRH).
TIME, t (5ms/div)
TIME, t (50μs /div)
Figure 15. Transient Response to Dynamic Load
Change from 0% to 50% to 0% of full load.
Figure 18. Typical Start-up Using Input Voltage (VIN =
VIN,NOM, Io = Io,max).
LINEAGE POWER
8
Data Sheet
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
2.7 – 4.0Vdc input; 0.8 to 2.0Vdc Output; 30A output current
October 21, 2009
Characteristic Curves
The following figures provide typical characteristics for the ATM030A0X3-SR and -SRH (2.0V, 30A) at 25oC.
100
95
90
85
80
75
70
35
30
25
20
15
10
5
2.5m/s
500 LFM
Vin = 3.0V
0.5m/s
100 LFM
1m/s
200 LFM
NC
Vin = 3.3V
Vin = 3.9V
1.5m/s
300 LFM
2.0m/s
400 LFM
0
30
40
50
60
70
80
0
5
10
15
20
25
30
OUTPUT CURRENT, IO (A)
AMBIENT TEMPERATURE, TA OC
Figure 19. Converter Efficiency versus Output
Current.
Figure 22. Output Current Derating versus Ambient
Temperature and Airflow (ATM030A0X3-SR).
35
2.5m/s (500LFM)
30
NC
25
0.5m/s (100LFM)
1m/s (200LFM)
1.5m/s (300LFM)
2m/s (400LFM)
20
15
30
40
50
60
70
80
AMBIENT TEMPERATURE, TA OC
TIME, t (1μs/div)
Figure 20. Typical output ripple and noise (VIN =
VIN,NOM, Io = Io,max).
Figure 23. Output Current Derating versus Ambient
Temperature and Airflow (ATM030A0X3-SRH).
TIME, t (5ms/div)
TIME, t (50μs /div)
Figure 21. Transient Response to Dynamic Load
Change from 0% to 50% to 0% of full load.
Figure 24. Typical Start-up Using Input Voltage (VIN =
VIN,NOM, Io = Io,max).
LINEAGE POWER
9
Data Sheet
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
2.7 – 4.0Vdc input; 0.8 to 2.0Vdc Output; 30A output current
October 21, 2009
Test Configurations
Design Considerations
The ATM030 module should be connected to a low-
impedance source. A highly inductive source can
CURRENT PROBE
TO OSCILLOSCOPE
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
LTEST
VIN(+)
1μH
ensure module stability.
CIN
Min
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
CS 220μF
E.S.R.<0.1Ω
150μF
@ 20°C 100kHz
various output voltages at 30A of load current with
COM
1x47 µF or 2x47 µF ceramic capacitors and an
input of 3.3V.
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.
100
90
80
70
60
50
40
Figure 25. Input Reflected Ripple Current Test
Setup.
COPPER STRIP
VO(+)
COM
RESISTIVE
LOAD
1 x 47uF
2 x 47uF
1uF
.
10uF
SCOPE
0.5
1
1.5
2
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.
Output Voltage (Vdc)
Figure 28. Input ripple voltage for various
output voltages with 1x47 µF or 2x47 µF ceramic
capacitors at the input (30A load). Input voltage
is 3.3V.
Figure 26. Output Ripple and Noise Test Setup.
Rdistribution Rcontact
Rcontact Rdistribution
Safety Considerations
VIN(+)
VO
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, CSA C22.2 No.
60950-00, EN60950 (VDE 0850) (IEC60950, 3rd
edition) Licensed.
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.
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.
Figure 27. Output Voltage and Efficiency Test
Setup.
An input fuse for the module is recommended. As
an option to using a fuse, no fuse is required, if the
module is powered by a power source with current
limit protection and the module is evaluated in the
end-use equipment.
VO. IO
Efficiency
=
x
100 %
η
VIN. IIN
LINEAGE POWER
10
Data Sheet
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
2.7 – 4.0Vdc input; 0.8 to 2.0Vdc Output; 30A output current
October 21, 2009
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, the output voltage of the module can
Feature Descriptions
Remote On/Off
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,
connect the Remote Sense pin to output of the
module.
The ATM030 SMT 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 (Von/off) is referenced
to ground. Circuit configuration for remote On/Off
operation of the module using the On/Off pin is
shown in Figure 29.
During a Logic High on the On/Off pin (transistor Q1
is OFF), the module remains OFF. The external
resistor RX should be chosen to maintain 2.5V
minimum on the On/Off pin to ensure that the
module is OFF when transistor Qx is in the OFF
state. A suitable values for RX is 3K for 5Vin.
During Logic-Low when QX is turned ON, the
module is turned ON.
Rdistribution Rcontact
Rcontact Rdistribution
VIN(+)
VO
Sense
RLO AD
Rdistribution Rcontact
Rcontact Rdistribution
CO M
CO M
VIN+
Figure 30. Effective Circuit Configuration for
Remote Sense operation.
MODULE
R1
Thermal SD
Over Current Protection
I
ON/OFF
+
1K
PWM Enable
100K
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. The average
ON/OFF
V
ON/OFF
Q1
10K
GND
_
output current during hiccup is 10% IO, max
.
Figure 29. Remote On/Off Implementation
using ON/OFF .
Over Temperature Protection
To provide protection in a fault condition, the unit is
equipped with a thermal shutdown circuit. The unit
will shutdown if the overtemperature threshold of
125oC is exceeded at the thermal reference point
Tref. The thermal shutdown is not intended as a
guarantee that the unit will survive temperatures
beyond its rating. Once the unit goes into thermal
shutdown it will then wait to cool before attempting
to restart.
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.
Input Under Voltage Lockout
Remote Sense
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.
The ATM030 power modules have a Remote Sense
feature to minimize the effects of distribution losses
by regulating the voltage at the Remote Sense pin
(See Figure 30). The voltage between the Sense
pin and Vo pin must not exceed 0.5V.
LINEAGE POWER
11
Data Sheet
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
2.7 – 4.0Vdc input; 0.8 to 2.0Vdc Output; 30A output current
October 21, 2009
Output Voltage Programming
Voltage Sequencing
The output voltage of the ATM030 module can be
programmed to any voltage from 0.8dc to 2.0Vdc by
connecting a resistor (shown as Rtrim 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, Rtrim for a
desired output voltage, use the following equation:
The Austin MegaLynxTM series of modules include a
sequencing feature that enables users to implement
various types of output voltage sequencing in their
applications. This is accomplished via an additional
sequencing pin. When not using the sequencing
feature, either leave the SEQ pin unconnected or
tied to VIN.
Vo
1200
⎡
⎤
Rtrim
=
−100 Ω
⎢
⎣
⎥
⎦
Vo − 0.80
Rmargin-down
Rtrim is the external resistor in Ω
Austin Lynx or
Lynx II Series
Vo is the desired output voltage
Q2
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.
The POL Programming Tool, available at
Trim
Rmargin-up
www.lineagepower.com under the Design Tools
section, helps determine the required external trim
resistor needed for a specific output voltage.
Rtrim
Q1
VIN(+)
VO(+)
TRIM
GND
Figure 32. Circuit Configuration for margining
Output voltage.
LOAD
ON/OFF
Rtrim
For proper voltage sequencing, first, input voltage is
applied to the module. The On/Off pin of the
module is or tied to GND so that the module is ON
by default. After applying input voltage to the
module, a minimum of 10msec delay is required
before applying voltage on the SEQ pin. After
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
output reaches the set-point voltage. To initiate
simultaneous shutdown of the modules, the SEQ
pin voltage is lowered in a controlled manner.
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.
GND
Figure 31. Circuit configuration to program
output voltage using an external resistor.
Voltage Margining
Output voltage margining can be implemented in
the Austin MegaLynxTM modules by connecting a
resistor, Rmargin-up, from the Trim pin to the ground
pin for margining-up the output voltage and by
connecting a resistor, Rmargin-down, from the Trim pin
to output pin for margining-down. Figure 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 Rmargin-up and
Rmargin-down for a specific output voltage and %
margin. Please consult your local Lineage Power
technical representative for additional details.
When using the EZ-SEQUENCETM feature to
control start-up of the module, pre-bias immunity
feature during start-up is disabled. The pre-bias
immunity feature of the module relies on the module
being in the diode-mode during start-up. When
using the EZ-SEQUENCETM feature, modules goes
through an internal set-up time of 10msec, and will
be in synchronous rectification mode when voltage
LINEAGE POWER
12
Data Sheet
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
2.7 – 4.0Vdc input; 0.8 to 2.0Vdc Output; 30A output current
October 21, 2009
at the SEQ pin is applied. This will result in sinking
current in the module if pre-bias voltage is present
at the output of the module. When pre-bias
immunity during start-up is required, the EZ-
SEQUENCETM feature must be disabled. For
additional guidelines on using EZ-SEQUENCETM
feature of Austin MegaLynx modules, contact the
Tyco Power Systems Technical representative for
the application note on output voltage sequencing.
•
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.
Active Load Sharing (-P Option)
•
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.
For additional power requirements, the ATM030
series power module is also available with a parallel
option. Up to five modules can be configured, in
parallel, with active load sharing. 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
When not using the parallel feature, leave the share
pin open.
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 ATM030A0X3-SR converters the
parallel, the total current drawn should be less that
75% of 4 x 30A or 90A.
•
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 ATM030A0X3-
SR converters the parallel, the total current
drawn should be less that 75% of (4 x 30A) ,
i.e. less than 90A.
LINEAGE POWER
13
Data Sheet
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
2.7 – 4.0Vdc input; 0.8 to 2.0Vdc Output; 30A output current
October 21, 2009
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 33. Note
that the airflow is parallel to the long axis of the
module as shown in Figure 34. The derating data
applies to airflow in either direction of the module’s
long axis.
Figure 34. Airflow direction for thermal testing.
25.4_
Wind Tunnel
PWBs
(1.0)
Figure 35. T
location.
Temperature measurement
ref
Power Module
The thermal reference points, Tref used in the
specifications are shown in Figure 35. For reliable
operation the temperatures at these points should
not exceed 125oC. The output power of the module
should not exceed the rated power of the module
(Vo,set x Io,max).
76.2_
(3.0)
x
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.
Probe Location
for measuring
airflow and
ambient
temperature
12.7_
(0.50)
Air
flow
Figure 33. Thermal Test Up
LINEAGE POWER
14
Data Sheet
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
2.7 – 4.0Vdc input; 0.8 to 2.0Vdc Output; 30A output current
October 21, 2009
Mechanical Outline of Module (ATM030A0X3-SRPH)
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.)
Note: For the ATM030A0X3-SRH module, the SHARE pin is omitted since these modules are not
capable of being paralleled.
LINEAGE POWER
15
Data Sheet
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
2.7 – 4.0Vdc input; 0.8 to 2.0Vdc Output; 30A output current
October 21, 2009
Recommended Pad Layout (ATM030A0X3-SRPH)
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 8
Pin 10
PIN
1
FUNCTION
On/Off
VIN
PIN
6
FUNCTION
Trim
2
7
Sense
GND
3
SEQ
8
4
GND
9
SHARE
GND
5
VOUT
10
Note: For the ATM030A0X3-SRH module, the SHARE pin is not present since these modules are not
capable of being paralleled.
LINEAGE POWER
16
Data Sheet
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
2.7 – 4.0Vdc input; 0.8 to 2.0Vdc Output; 30A output current
October 21, 2009
Mechanical Outline of Module (ATM030A0X3-SRP)
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.)
Note: For the ATM030A0X3-SR module, the SHARE pin is omitted since these modules are not capable
of being paralleled.
LINEAGE POWER
17
Data Sheet
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
2.7 – 4.0Vdc input; 0.8 to 2.0Vdc Output; 30A output current
October 21, 2009
Recommended Pad Layout (ATM030A0X3-SRP)
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
1
FUNCTION
On/Off
VIN
PIN
6
FUNCTION
Trim
2
7
Sense
No Pin
Share
3
SEQ
8
4
GND
9
5
VOUT
10
No Pin
Note: For the ATM030A0X3-SR module, the SHARE pin is not used since these modules are not
capable of being paralleled.
LINEAGE POWER
18
Data Sheet
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
2.7 – 4.0Vdc input; 0.8 to 2.0Vdc Output; 30A output current
October 21, 2009
Packaging Details
The ATM030 SMT module 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:
Inside diameter:
Tape Width:
330.2 (13.0)
177.8 (7.0)
44.0 (1.73)
LINEAGE POWER
19
Data Sheet
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
2.7 – 4.0Vdc input; 0.8 to 2.0Vdc Output; 30A output current
October 21, 2009
In a conventional Tin/Lead (Sn/Pb) solder process
Surface Mount Information
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.
Pick and Place
The Austin MegaLynxTM 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 location of manufacture.
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
205oC
Preheat zone
max 4oCs-1
Figure 36. Pick and Place Location.
Nozzle Recommendations
0
REFLOW TIME (S)
Figure 37. Reflow Profile for Tin/Lead (Sn/Pb)
process.
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.
240
235
230
225
220
215
210
205
200
Tin Lead Soldering
The ATM030 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
0
10
20
30
40
50
60
Figure 38. Time Limit Curve Above 205oC Reflow
for Tin Lead (Sn/Pb) process.
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
20
Data Sheet
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
2.7 – 4.0Vdc input; 0.8 to 2.0Vdc Output; 30A output current
October 21, 2009
Modules: Soldering and Cleaning Application Note
(AN04-001).
Surface Mount Information (continued)
Lead Free Soldering
300
The –Z version MegaLynx ATM 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.
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 Figure 39.
0
Reflow Time (Seconds)
Figure 39. Recommended linear reflow profile
using Sn/Ag/Cu solder.
MSL Rating
The Austin MegaLynxTM ATM 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
21
Data Sheet
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
2.7 – 4.0Vdc input; 0.8 to 2.0Vdc Output; 30A output current
October 21, 2009
Ordering Information
Please contact your Lineage Power Sales Representative for pricing, availability and optional features.
Table 1: Device Codes
Input
Voltage
Output
Voltage
Output
Current
On/Off
Logic
Connector
Type
Product codes
Comcodes
ATM030A0X3-SR
2.7 – 4.0Vdc
2.7 – 4.0Vdc
2.7 – 4.0Vdc
2.7 – 4.0Vdc
2.7 – 4.0Vdc
2.7 – 4.0Vdc
0.8 – 2.0Vdc
0.8 – 2.0Vdc
0.8 – 2.0Vdc
0.8 – 2.0Vdc
0.8 – 2.0Vdc
0.8 – 2.0Vdc
30A
30A
30A
30A
30A
30A
Negative
Negative
Negative
Negative
Negative
Negative
SMT
SMT
SMT
SMT
SMT
SMT
CC109112315
CC109112397
CC109112323
CC109112406
CC109112331
CC109112414
ATM030A0X3-SRZ
ATM030A0X3-SRH
ATM030A0X3-SRHZ
ATM030A0X3-SRPH
ATM030A0X3-SRPHZ
Table 2.
Device Options
Option
Device Code Suffix
Current Share
2 Extra ground pins
RoHS Compliant
-P
-H
-Z
Asia-Pacific Headquarters
Tel: +65 6593 7211
Europe, Middle-East and Africa Headquarters
World Wide Headquarters
Tel: +49 898 780 672 80
Lineage Power Corporation
601 Shiloh Road, Plano, TX 75074, USA
+1-800-526-7819
India Headquarters
(Outside U.S.A.: +1-972-244-9428)
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.
Lineage Power DC-DC products are protected under various patents. Information on these patents is available at www.lineagepower.com/patents.
© 2009 Lineage Power Corporation, (Plano, Texas) All International Rights Reserved.
LINEAGE POWER
22
Document No: DS06-130 ver. 1.05
PDF No: ATM030A0X3-SR_ds.pdf
相关型号：
©2020 ICPDF网 联系我们和版权申明