LINEAGEPOWER AXH003A0X-Z

Data Sheet
February 26, 2009
Austin MinilynxTM SIP Non-isolated Power Modules:
2.4Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc Output;3A Output Current
RoHS Compliant
Features
ƒ
Compliant to RoHS EU Directive 2002/95/EC (-Z
versions)
ƒ
Compliant to ROHS EU Directive 2002/95/EC with
lead solder exemption (non-Z versions)
ƒ
Delivers up to 3A output current
ƒ
High efficiency – 94% at 3.3V full load (VIN = 5.0V)
ƒ
Small size and low profile:
22.9 mm x 10.2 mm x 6.63 mm
(0.90 in. x 0.40 in. x 0.261 in.)
ƒ
Low output ripple and noise
ƒ
High Reliability:
Calculated MTBF = 11.9M hours at 25oC Full-load
Applications
ƒ
Distributed power architectures
ƒ
Intermediate bus voltage applications
ƒ
Telecommunications equipment
ƒ
Servers and storage applications
ƒ
Networking equipment
ƒ
Enterprise Networks
ƒ
Latest generation IC’s (DSP, FPGA, ASIC)
and Microprocessor powered applications
ƒ
Constant switching frequency (300 kHz)
ƒ
Output voltage programmable from 0.75 Vdc to
3.63Vdc via external resistor
ƒ
Line Regulation: 0.4% (typical)
ƒ
Load Regulation: 0.4% (typical)
ƒ
Temperature Regulation: 0.4 % (typical)
ƒ
Remote On/Off
ƒ
Output overcurrent protection (non-latching)
ƒ
Wide operating temperature range (-40°C to 85°C)
ƒ
UL* 60950-1Recognized, CSA C22.2 No. 60950-1‡
03 Certified, and VDE 0805:2001-12 (EN60950-1)
Licensed
ƒ
ISO** 9001 and ISO 14001 certified manufacturing
facilities
†
Description
Austin MiniLynxTM SIP (single-in-line) power modules are non-isolated DC-DC converters that can deliver up to 3A
of output current with full load efficiency of 94.0% at 3.3V output. These modules provide a precisely regulated
output voltage programmable via an external resistor from 0.75Vdc to 3.63Vdc over a wide range of input voltage
(VIN = 2.4 – 5.5Vdc). Their open-frame construction and small footprint enable designers to develop cost- and
space-efficient solutions. In addition to sequencing, standard features include remote On/Off, programmable output
voltage and over current 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: DS04-040 ver. 1.32
PDF name: minilynx_sip_ds.pdf
Data Sheet
February 26, 2009
Austin MiniLynxTM SIP Non-isolated Power Modules:
2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 3A output current
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
All
VIN
-0.3
5.8
Vdc
All
TA
-40
85
°C
All
Tstg
-55
125
°C
Input Voltage
Continuous
Operating Ambient Temperature
(see Thermal Considerations section)
Storage Temperature
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
VO,set ≤ VIN – 0.5V
VIN
2.4
⎯
5.5
Vdc
Maximum Input Current
All
IIN,max
3.0
Adc
VO,set = 0.75Vdc
IIN,No load
10
mA
VO,set = 3.3Vdc
IIN,No load
17
mA
All
IIN,stand-by
0.6
mA
Inrush Transient
All
It
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 1μH source impedance; VIN, min to
VIN, max, IO= IOmax ; See Test configuration section)
All
35
Input Ripple Rejection (120Hz)
All
30
(VIN= VIN, min to VIN, max, IO=IO, max VO,set = 3.3Vdc)
Input No Load Current
(VIN = 5.0Vdc, IO = 0, module enabled)
Input Stand-by Current
(VIN = 5.0Vdc, module disabled)
2
0.04
2
As
mAp-p
dB
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 fastacting fuse with a maximum rating of 6 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
February 26, 2009
Austin MiniLynxTM SIP Non-isolated Power Modules:
2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 3A output current
Electrical Specifications (continued)
Parameter
Output Voltage Set-point
Device
Symbol
Min
Typ
Max
Unit
All
VO, set
-2.0
VO, set
+2.0
% VO, set
All
VO, set
-3%
⎯
+3%
% VO, set
All
VO
0.7525
3.63
Vdc
(VIN=IN, min, IO=IO, max, TA=25°C)
Output Voltage
(Over all operating input voltage, resistive load,
and temperature conditions until end of life)
Adjustment Range
Selected by an external resistor
Output Regulation
Line (VIN=VIN, min to VIN, max)
All
⎯
0.4
⎯
% VO, set
Load (IO=IO, min to IO, max)
All
⎯
0.4
⎯
% VO, set
Temperature (Tref=TA, min to TA, max)
All
⎯
0.4
⎯
% VO, set
RMS (5Hz to 20MHz bandwidth)
All
⎯
10
15
mVrms
Peak-to-Peak (5Hz to 20MHz bandwidth)
All
⎯
25
50
mVpk-pk
μF
Output Ripple and Noise on nominal output
(VIN=VIN, nom and IO=IO, min to IO, max
Cout = 1μF ceramic//10μFtantalum capacitors)
External Capacitance
ESR ≥ 1 mΩ
All
CO, max
⎯
⎯
1000
⎯
3000
μF
3
Adc
All
CO, max
⎯
Output Current
All
Io
0
Output Current Limit Inception (Hiccup Mode )
All
IO, lim
⎯
220
⎯
% Io
All
IO, s/c
⎯
2
⎯
Adc
VO,set = 0.75Vdc
η
81.5
%
VIN= VIN, nom, TA=25°C
VO, set = 1.2Vdc
η
87.0
%
IO=IO, max , VO= VO,set
VO,set = 1.5Vdc
η
89.0
%
VO,set = 1.8Vdc
η
90.0
%
VO,set = 2.5Vdc
η
93.0
%
ESR ≥ 10 mΩ
(VO= 90% of VO, set)
Output Short-Circuit Current
(VO≤250mV) ( Hiccup Mode )
Efficiency
Switching Frequency
VO,set = 3.3Vdc
η
All
fsw
⎯
94.0
300
⎯
kHz
%
All
Vpk
⎯
250
⎯
mV
Dynamic Load Response
(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
ts
⎯
50
⎯
μs
(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
All
Vpk
⎯
250
⎯
mV
All
ts
⎯
50
⎯
μs
Peak Deviation
Settling Time (Vo<10% peak deviation)
LINEAGE POWER
3
Data Sheet
February 26, 2009
Austin MiniLynxTM SIP Non-isolated Power Modules:
2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 3A output current
Electrical Specifications (continued)
Parameter
Device
Symbol
Min
Typ
Max
Unit
All
Vpk
⎯
60
⎯
mV
Dynamic Load Response
(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
ts
⎯
100
⎯
μs
(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
All
Vpk
⎯
60
⎯
mV
Settling Time (Vo<10% peak deviation)
All
ts
⎯
100
⎯
μs
General Specifications
Parameter
Min
Calculated MTBF (IO=IO, max, TA=25°C)
Weight
LINEAGE POWER
Typ
Max
11,965,153
⎯
2.8 (0.1)
Unit
Hours
⎯
g (oz.)
4
Austin MiniLynxTM SIP Non-isolated Power Modules:
2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 3A output current
Data Sheet
February 26, 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
Device code with Suffix “4” – Positive logic
(On/Off is open collector/drain logic input;
Signal referenced to GND - See feature description
section)
Input High Voltage (Module ON)
All
VIH
―
―
VIN, max
V
Input High Current
All
IIH
―
―
10
μA
Input Low Voltage (Module OFF)
All
VIL
-0.2
―
0.3
V
Input Low Current
All
IIL
―
0.2
1
mA
Input High Voltage (Module OFF)
All
VIH
1.5
Input High Current
All
IIH
Input Low Voltage (Module ON)
All
VIL
Input low Current
All
IIL
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)
All
Tdelay
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
Output voltage Rise time (time for Vo to rise from 10%
of Vo,set to 90% of Vo, set)
All
Device Code with no suffix – Negative Logic
(On/OFF pin is open collector/drain logic input with
external pull-up resistor; signal referenced to GND)
-0.2
―
VIN,max
Vdc
0.2
1
mA
―
0.3
Vdc
―
10
μA
―
4
―
msec
Tdelay
―
4
―
msec
Trise
―
4
―
msec
―
1
% VO, set
―
―
0.5
⎯
140
⎯
Turn-On Delay and Rise Times
o
(IO=IO, max , VIN = VIN, nom, TA = 25 C, )
Output voltage overshoot – Startup
o
IO= IO, max; VIN = 2.4 to 5.5Vdc, TA = 25 C
Remote Sense Range
Overtemperature Protection
All
Tref
°C
(See Thermal Consideration section)
Input Undervoltage Lockout
Turn-on Threshold
All
2.2
V
Turn-off Threshold
All
2.0
V
LINEAGE POWER
5
Austin MiniLynxTM SIP Non-isolated Power Modules:
2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 3A output current
Data Sheet
February 26, 2009
Characteristic Curves
The following figures provide typical characteristics for the Austin MiniLynxTM SIP modules at 25ºC.
94
97
91
94
91
EFFICIENCY, η (%)
EFFICIENCY, η (%)
88
85
82
79
VIN = 2.5V
76
VIN = 3.3V
73
VIN = 5.0V
0.6
1.2
1.8
2.4
85
82
VIN = 2.5V
79
VIN = 3.3V
76
VIN = 5.0V
73
70
0
88
0
3
0.6
OUTPUT CURRENT, IO (A)
2.4
3
Figure 4. Converter Efficiency versus Output Current
(Vout = 1.8Vdc).
94
98
91
95
88
92
EFFICIENCY, η (%)
EFFICIENCY, η (%)
1.8
OUTPUT CURRENT, IO (A)
Figure 1. Converter Efficiency versus Output Current
(Vout = 0.75Vdc).
85
82
79
VIN = 2.5V
76
VIN = 3.3V
73
VIN = 5.0V
70
89
86
83
VIN = 3.3V
80
VIN = 4.0V
77
VIN = 5.0V
74
0
0.6
1.2
1.8
2.4
3
0
0.6
OUTPUT CURRENT, IO (A)
96
90
93
EFFICIENCY, η (%)
99
93
87
84
VIN = 2.5V
78
VIN = 3.3V
75
VIN = 5.0V
72
0
0.6
1.2
1.8
2.4
OUTPUT CURRENT, IO (A)
Figure 3. Converter Efficiency versus Output Current
(Vout = 1.5Vdc).
LINEAGE POWER
1.8
2.4
3
Figure 5. Converter Efficiency versus Output Current
(Vout = 2.5Vdc).
96
81
1.2
OUTPUT CURRENT, IO (A)
Figure 2. Converter Efficiency versus Output Current
(Vout = 1.2Vdc).
EFFICIENCY, η (%)
1.2
3
90
87
84
VIN = 4.0V
81
VIN = 5.0V
78
VIN = 5.5V
75
0
0.6
1.2
1.8
2.4
3
OUTPUT CURRENT, IO (A)
Figure 6. Converter Efficiency versus Output Current
(Vout = 3.3Vdc).
6
Austin MiniLynxTM SIP Non-isolated Power Modules:
2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 3A output current
Data Sheet
February 26, 2009
Characteristic Curves (continued)
0
0
1
2
3
INPUT VOLTAGE, VIN (V)
VO (V) (10mV/div)
OUTPUT VOLTAGE
Figure 7. Input voltage vs. Input Current
(Vout =2.5Vdc).
TIME, t (1μs/div)
VO (V) (10mV/div)
OUTPUT VOLTAGE
Figure 8. Typical Output Ripple and Noise
(VIN = 5.0V dc, Vo = 0.75Vdc, Io=3A).
TIME, t (1μs/div)
Figure 9. Typical Output Ripple and Noise
(VIN = 5.0V dc, Vo = 3.3Vdc, Io=3A).
LINEAGE POWER
4
5
VO (V) (100mV/div)
IO (A) (2A/div)
0.5
TIME, t (20 μs/div)
Figure 10. Transient Response to Dynamic Load
Change from 50% to 100% of full load (Vo = 3.3Vdc).
VO (V) (100mV/div)
1
IO (A) (2A/div)
1.5
OUTPUT CURRENT, OUTPUT VOLTAGE
Io=0A
2
SIP modules at 25ºC.
TIME, t (20 μs/div)
Figure 11. Transient Response to Dynamic Load
Change from 100% to 50% of full load (Vo = 3.3 Vdc).
VO (V) (20mV/div)
INPUT CURRENT, IIN (A)
Io=1.5A
2.5
TM
IO (A) (2A/div)
Io=3A
3
OUTPUT CURRENT, OUTPUT VOLTAGE
3.5
OUTPUT CURRENT, OUTPUT VOLTAGE
The following figures provide typical characteristics for the Austin MiniLynx
TIME, t (100μs/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).
7
Data Sheet
February 26, 2009
Austin MiniLynxTM SIP Non-isolated Power Modules:
2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 3A output current
Characteristic Curves (continued)
INPUT VOLTAG
VIN (V) (2V/div)
OUTPUT VOLTAGE
VO (V) (1V/div)
TIME, t (2ms/div)
Figure 15. Typical Start-Up Using Remote On/Off with
Low-ESR external capacitors (7x150uF Polymer)
VO (V) (0.5V/div)
TIME, t (2ms/div)
Figure 17 Typical Start-Up Using Remote On/Off
with Prebias (VIN = 3.3Vdc, Vo = 1.8Vdc, Io = 1.0A,
Vbias =1.0Vdc).
OUTPUT CURRENT,
VO (V) (1V/div)
VOn/off(V) (2V/div)
ON/OFF VOLTAGE
OUTPUT VOLTAGE
Figure 14. Typical Start-Up Using Remote On/Off
(VIN = 5.0Vdc, Vo = 3.3Vdc, Io = 3A).
OUTPUT VOLTAGE
TIME, t (2ms/div)
TIME, t (2ms/div)
Figure 16. Typical Start-Up with application of Vin
(VIN = 5.0Vdc, Vo = 3.3Vdc, Io = 3A).
VOn/off(V) (2V/div)
VO (V) (1V/div)
VOn/off(V) (2V/div)
ON/OFF VOLTAGE
OUTPUT VOLTAGE
Figure 13. Transient Response to Dynamic Load
Change from 100% of 50% full load (Vo = 3.3Vdc, Cext
= 2x150 μF Polymer Capacitors).
ON/OFF VOLTAGE
TIME, t (100μs/div)
IO (A) (5A/div)
OUTPUT CURRENT, OUTPUTVOLTAGE
IO (A) (2A/div)
VO (V) (20mV/div)
The following figures provide typical characteristics for the Austin MiniLynxTM SIP modules at 25ºC.
TIME, t (10ms/div)
Figure 18. Output short circuit Current
(VIN = 5.0Vdc, Vo = 0.75Vdc).
(VIN = 5.0Vdc, Vo = 3.3Vdc, Io = 3A, Co = 1050μF).
LINEAGE POWER
8
Austin MiniLynxTM SIP Non-isolated Power Modules:
2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 3A output current
Data Sheet
February 26, 2009
Characteristic Curves (continued)
3.5
3.5
3
3
OUTPUT CURRENT, Io (A)
OUTPUT CURRENT, Io (A)
The following figures provide thermal derating curves for the Austin MiniLynxTM SIP modules.
2.5
2
1.5
1
0.5
0 LFM
0
20
30
40
50
60
70
80
2.5
2
1.5
1
0.5
0 LFM
0
90
20
O
40
50
60
70
80
90
AMBIENT TEMPERATURE, TA C
Figure 19. Derating Output Current versus Local
Ambient Temperature and Airflow (VIN = 5.0,
Vo=3.3Vdc).
OUTPUT CURRENT, Io (A)
30
O
AMBIENT TEMPERATURE, TA C
Figure 22. Derating Output Current versus Local
Ambient Temperature and Airflow (VIN = 3.3dc,
Vo=2.5 Vdc).
3.5
3.5
3
3
2.5
2.5
2
2
1.5
1.5
1
1
0.5
0.5
0 LFM
0 LFM
0
0
20
30
40
50
60
70
80
90
20
30
40
50
60
70
80
90
O
AMBIENT TEMPERATURE, TA C
OUTPUT CURRENT, Io (A)
Figure 20. Derating Output Current versus Local
Ambient Temperature and Airflow (VIN = 5.0Vdc,
Vo=1.8 Vdc).
Figure 23. Derating Output Current versus Local
Ambient Temperature and Airflow (VIN = 3.3dc,
Vo=1.2 Vdc).
3.5
3.5
3
3
2.5
2.5
2
2
1.5
1.5
1
1
0.5
0.5
0 LFM
0 LFM
0
0
20
30
40
50
60
70
80
90
20
30
40
50
60
70
80
90
O
AMBIENT TEMPERATURE, TA C
Figure 21. Derating Output Current versus Local
Ambient Temperature and Airflow (VIN = 5.0Vdc,
Vo=0.75 Vdc).
LINEAGE POWER
Figure 24. Derating Output Current versus Local
Ambient Temperature and Airflow (VIN = 3.3dc,
Vo=0.75 Vdc).
9
Austin MiniLynxTM SIP Non-isolated Power Modules:
2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 3A output current
Data Sheet
February 26, 2009
Test Configurations
Design Considerations
CURRENT PROBE
TO OSCILLOSCOPE
VIN(+)
BATTERY
CIN
CS 1000μF
Electrolytic
2x100μF
Tantalum
E.S.R.<0.1Ω
TM
The Austin MiniLynx SIP module should be connected
to a low-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.
To minimize input voltage ripple, low-ESR polymer and
ceramic capacitors are recommended at the input of the
module. Figure 28 shows the input ripple voltage
(mVp-p) for various outputs with 1x22µF (TDK:
C3225X5R0J226V) ceramic capacitor at the input of the
module. Figure 29 shows the input ripple with 1x47µF
(TDK: C3225X5R0J476M) ceramic capacitor at full load.
LTEST
1μH
Input Filtering
@ 20°C 100kHz
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 25. Input Reflected Ripple Current Test
Setup.
VO (+)
Input Ripple Voltage (mVp-p)
COPPER STRIP
RESISTIVE
LOAD
1uF
.
10uF
160
SCOPE
COM
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.
Rcontact
VIN(+)
VO
Rcontact
Rcontact
COM
Rdistribution
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 27. Output Voltage and Efficiency Test Setup.
VO. IO
Efficiency
η =
VIN. IIN
x
100 %
100
80
60
40
20
0.5
1
1.5
2
2.5
3
3.5
Output Voltage (Vdc)
Figure 28. Input ripple voltage for various outputs
with 1x22 µF ceramic capacitor at the input (fullload).
160
RLOAD
VO
VIN
Rdistribution
Rdistribution
120
0
3.3Vin
Input Ripple Voltage (mVp-p)
Rcontact
5Vin
0
Figure 26. Output Ripple and Noise Test Setup.
Rdistribution
3.3Vin
140
140
5Vin
120
100
80
60
40
20
0
0
0.5
1
1.5
2
2.5
3
3.5
Output Voltage (Vdc)
Figure 29. Input ripple voltage for various outputs
with 1x47 µF ceramic capacitor at the input (full
load).
LINEAGE POWER
10
Data Sheet
February 26, 2009
Austin MiniLynxTM SIP Non-isolated Power Modules:
2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 3A output current
Design Considerations (continued)
Safety Considerations
Output Filtering
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.
TM
The Austin MiniLynx SIP 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.
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
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 fastacting fuse with a maximum rating of 6A in the positive
input lead.
11
Austin MiniLynxTM SIP Non-isolated Power Modules:
2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 3A output current
Data Sheet
February 26, 2009
Feature Description
VIN+
Remote On/Off
MODULE
Rpull-up
TM
The Austin MiniLynx SIP power modules feature an
On/Off pin for remote On/Off operation. Two On/Off
logic options are available in the Austin MiniLynxTM
series modules. Positive Logic On/Off signal, device
code suffix “4”, turns the module ON during a logic High
on the On/Off pin and turns the module OFF during a
logic Low. Negative logic On/Off signal, no device code
suffix, turns the module OFF during logic High on the
On/Off pin and turns the module ON during logic Low.
For positive logic modules, the circuit configuration for
using the On/Off pin is shown in Figure 30. The On/Off
pin is an open collector/drain logic input signal (Von/Off)
that is referenced to ground. During a logic-high
(On/Off pin is pulled high internal to the module) when
the transistor Q1 is in the Off state, the power module is
ON. Maximum allowable leakage current of the
transistor when Von/off = VIN,max is 10µA. Applying a
logic-low when the transistor Q1 is turned-On, the
power module is OFF. During this state VOn/Off must
be less than 0.3V. When not using positive logic On/off
pin, leave the pin unconnected or tie to VIN.
VIN+
MODULE
I ON/OFF
ON/OFF
+
VON/OFF
PWM Enable
R1
Q2
Q1
CSS
R2
GND
_
Figure 31. Circuit configuration for using negative
logic On/OFF.
Overcurrent Protection
To provide protection in a fault (output overload)
condition, the unit is equipped with internal
current-limiting circuitry and can endure current limiting
continuously. At the point of current-limit inception, the
unit enters hiccup mode. The unit operates normally
once the output current is brought back into its specified
range. The typical average output current during hiccup
is 3.5A.
R2
Input Undervoltage Lockout
ON/OFF
I ON/OFF
+
VON/OFF
Q2
R1
PWM Enable
R3
Q1
Q3
CSS
R4
GND
_
Figure 30. Circuit configuration for using positive
logic On/OFF.
For negative logic On/Off devices, the circuit
configuration is shown is Figure 31. The On/Off pin is
pulled high with an external pull-up resistor (typical Rpullup = 5k, +/- 5%). When transistor Q1 is in the Off state,
logic High is applied to the On/Off pin and the power
module is Off. The minimum On/off voltage for logic
High on the On/Off pin is 1.5Vdc. To turn the module
ON, logic Low is applied to the On/Off pin by turning ON
Q1. When not using the negative logic On/Off, leave
the pin unconnected or tie to GND.
LINEAGE POWER
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.
Overtemperature Protection
To provide over temperature protection in a fault
condition, the unit relies upon the thermal protection
feature of the controller IC. The unit will shutdown if
the thermal reference point Tref, exceeds 140oC
(typical), but 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.
12
Austin MiniLynxTM SIP Non-isolated Power Modules:
2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 3A output current
Data Sheet
February 26, 2009
Feature Descriptions (continued)
Output Voltage Programming
The output voltage of the Austin MiniLynxTM SIP can be
programmed to any voltage from 0.75 Vdc to 3.63 Vdc
by connecting a single resistor (shown as Rtrim in
Figure 32) between the TRIM and GND pins of the
module. Without an external resistor between TRIM pin
and the ground, the output voltage of the module is
0.7525 Vdc. To calculate the value of the resistor Rtrim
for a particular output voltage Vo, use the following
equation:
⎡ 21070
⎤
Rtrim = ⎢
− 5110⎥ Ω
Vo
−
0
.
7525
⎣
⎦
For example, to program the output voltage of the
TM
Austin MiniLynx module to 1.8 Vdc, Rtrim is calculated
is follows:
⎤
⎡ 21070
Rtrim = ⎢
− 5110⎥
⎦
⎣1.8 − 0.7525
Rtrim = 15.004 kΩ
V IN(+)
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.
Voltage Margining
Output voltage margining can be implemented in the
Austin MiniLynxTM 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 the Output pin
for margining-down. Figure 33 shows the circuit
configuration for output voltage margining. The POL
Programming Tool, available at ww.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.
Vo
Rmargin-down
V O(+)
Austin Lynx or
Lynx II Series
ON/OFF
Q2
LOAD
TRIM
Trim
R trim
Rmargin-up
GND
Rtrim
Figure 32. Circuit configuration to program output
voltage using an external resistor.
Q1
GND
Table 1 provides Rtrim values required for some
common output voltages.
Figure 33. Circuit Configuration for margining
Output voltage.
Table 1
VO, set (V)
Rtrim (KΩ)
0.7525
Open
1.2
41.973
1.5
23.077
1.8
15.004
2.5
6.947
3.3
3.160
LINEAGE POWER
13
Data Sheet
February 26, 2009
Austin MiniLynxTM SIP Non-isolated Power Modules:
2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 3A output current
Thermal Considerations
Power modules operate in a variety of thermal
environments; however, sufficient cooling should always
be provided to help ensure reliable operation.
Considerations include ambient temperature, airflow,
module power dissipation, and the need for increased
reliability. A reduction in the operating temperature of
the module will result in an increase in reliability. The
thermal data presented here is based on physical
measurements taken in a wind tunnel. The test set-up
is shown in Figure 35. Note that the airflow is parallel to
the 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.
Airflow
25.4_
(1.0)
Wind Tunnel
PWBs
Power Module
76.2_
(3.0)
x
5.97_
(0.235)
Probe Loc ation
for measuring
airflow and
ambient
temperature
Air
flow
Figure 35. Thermal Test Set-up.
Tref1
Tref2
Figure 34. Tref Temperature measurement location.
The thermal reference point, Tref used in the
specifications is shown in Figure 34. For reliable
o
operation this temperature should not exceed 115 C.
The output power of the module should not exceed the
rated power of the module (Vo,set x Io,max).
Please refer to the Application Note “Thermal
Characterization Process For Open-Frame BoardMounted Power Modules” for a detailed discussion of
thermal aspects including maximum device
temperatures.
LINEAGE POWER
14
Data Sheet
February 26, 2009
Austin MiniLynxTM SIP Non-isolated Power Modules:
2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 3A output current
Post solder Cleaning and Drying
Considerations
Post solder cleaning is usually the final circuit-board
assembly process prior to electrical board testing. The
result of inadequate cleaning and drying can affect both
the reliability of a power module and the testability of the
finished circuit-board assembly. For guidance on
appropriate soldering, cleaning and drying procedures,
refer to Board Mounted Power Modules: Soldering and
Cleaning Application Note.
Through-Hole Lead-Free Soldering
Information
The RoHS-compliant through-hole products use the
SAC (Sn/Ag/Cu) Pb-free solder and RoHS-compliant
components. They are designed to be processed
through single or dual wave soldering machines. The
pins have an RoHS-compliant finish that is compatible
with both Pb and Pb-free wave soldering processes. A
maximum preheat rate of 3°C/s is suggested. The wave
preheat process should be such that the temperature of
the power module board is kept below 210°C. For Pb
solder, the recommended pot temperature is 260°C,
while the Pb-free solder pot is 270°C max. Not all
RoHS-compliant through-hole products can be
processed with paste-through-hole Pb or Pb-free reflow
process. If additional information is needed, please
consult with your Lineage Power technical
representative for more details.
LINEAGE POWER
15
Data Sheet
February 26, 2009
Austin MiniLynxTM SIP Non-isolated Power Modules:
2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 3A output current
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.)
Top View
Side View
PIN
FUNCTION
1
Vo
2
Trim
3
GND
4
VIN
5
On/Off
LINEAGE POWER
16
Data Sheet
February 26, 2009
Austin MiniLynxTM SIP Non-isolated Power Modules:
2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 3A output current
Recommended Pad Layout
Dimensions are in millimeters and (inches).
Tolerances: x.x mm ± 0.5 mm (x.xx in. ± 0.02 in.) [unless otherwise indicated]
x.xx mm ± 0.25 mm (x.xxx in ± 0.010 in.)
PIN
FUNCTION
1
Vo
2
Trim
3
GND
4
VIN
5
On/Off
Component side view
LINEAGE POWER
17
Austin MiniLynxTM SIP Non-isolated Power Modules:
2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 3A output current
Data Sheet
February 26, 2009
Ordering Information
Please contact your Lineage Power Sales Representative for pricing, availability and optional features.
Table 3. Device Codes
Device Code
Input
Voltage
Range
Output
Voltage
Output
Current
Efficiency
[email protected] 3A
On/Off
Logic
Connector
Type
Comcodes
AXH003A0X
2.4 – 5.5Vdc
0.75 – 3.63Vdc
3A
94.0 %
Negative
SIP
108992640
AXH003A0X4
2.4 – 5.5Vdc
0.75 – 3.63Vdc
3A
94.0 %
Positive
SIP
108992657
AXH003A0X-Z
2.4 – 5.5Vdc
0.75 – 3.63Vdc
3A
94.0 %
Negative
SIP
CC109104865
Positive
SIP
CC109104873
AXH003A0X4-Z
2.4 – 5.5Vdc
0.75 – 3.63Vdc
3A
94.0 %
-Z refers to RoHS compliant Versions
Asia-Pacific Headquarters
Tel: +65 6416 4283
World Wide Headquarters
Lineage Power Corporation
3000 Skyline Drive, Mesquite, TX 75149, USA
+1-800-526-7819
(Outside U.S.A.: +1-972-284-2626)
www.lineagepower.com
e-mail: [email protected]
Europe, Middle-East and Africa Headquarters
Tel: +49 89 6089 286
India Headquarters
Tel: +91 80 28411633
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
18
Document No: DS04-040 ver. 1.32
PDF name: minilynx_sip_ds.pdf