Data Sheet
September 9, 2008
Austin SuperLynxTM SIP Non-isolated Power Modules:
3.0Vdc –5.5Vdc Input; 0.75Vdc to 3.63Vdc Output;16A Output Current
RoHS Compliant
Features
Compliant to RoHS EU Directive 2002/95/EC (-Z
versions)
Compliant to ROHS EU Directive 2002/95/EC
with lead solder exemption (non-Z versions)
Delivers up to 16A output current
High efficiency – 95% at 3.3V full load (VIN =
5.0V)
Small size and low profile:
50.8 mm x 12.7 mm x 8.10 mm
(2.00 in x 0.5 in x 0.32 in)
Applications
Distributed power architectures
Intermediate bus voltage applications
Telecommunications equipment
Low output ripple and noise
High Reliability:
o
Calculated MTBF > 6.8M hours at 25 C Full-load
Constant switching frequency (300 kHz)
Output voltage programmable from 0.75 Vdc to
3.63Vdc via external resistor
Servers and storage applications
Line Regulation: 0.3% (typical)
Networking equipment
Load Regulation: 0.4% (typical)
Enterprise Networks
Temperature Regulation: 0.4 % (typical)
Latest generation IC’s (DSP, FPGA, ASIC) and
Microprocessor powered applications
Remote On/Off
Remote Sense
Output overcurrent protection (non-latching)
Wide operating temperature range (-40°C to
85°C)
UL* 60950-1Recognized, CSA† C22.2 No.
‡
60950-1-03 Certified, and VDE 0805:2001-12
(EN60950-1) Licensed
ISO** 9001 and ISO 14001 certified
manufacturing facilities
Description
TM
Austin SuperLynx SIP (Single In-line package) power modules are non-isolated dc-dc converters that can deliver
up to 16A of output current with full load efficiency of 95.0% at 3.3V output. These modules provide a precisely
regulated output voltage programmable via external resistor from 0.75Vdc to 3.63Vdc over a wide range of input
voltage (VIN = 3.0 – 5.5Vdc). The open-frame construction and small footprint enable designers to develop costand space-efficient solutions. Standard features include remote On/Off, remote sense, programmable output
voltage, overcurrent and overtemperature protection.
* UL is a registered trademark of Underwriters Laboratories, Inc.
†
CSA is a registered trademark of Canadian Standards Association.
VDE is a trademark of Verband Deutscher Elektrotechniker e.V.
** ISO is a registered trademark of the International Organization of Standards
‡
Document No: DS03-085 ver. 1.52
PDF name: austin-superlynx-sip-ds.pdf
Data Sheet
September 9, 2008
Austin SuperLynxTM SIP Non-isolated Power Modules:
3.0 – 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A 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 ≤ VIN - 0.5
VIN
3.0
⎯
5.5
Vdc
Maximum Input Current
All
IIN,max
16
Adc
Vo = 0.75 Vdc
IIN,No load
70
mA
Vo = 3.3 Vdc
IIN,No load
70
mA
All
IIN,stand-by
1.5
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 Configurations)
All
100
mAp-p
Input Ripple Rejection (120Hz)
All
30
dB
(VIN=3.0V to 5.5V, IO=IO, max )
Input No Load Current
(VIN = 5.0Vdc, IO = 0, module enabled)
Input Stand-by Current
(VIN = 5.0Vdc, module disabled)
2
0.1
2
As
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 20A,
fast-acting, glass type fuse rated for 32V (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
September 9, 2008
Austin SuperLynxTM SIP Non-isolated Power Modules:
3.0 – 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A 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=VIN, 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
⎯
0.3
⎯
% 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
⎯
8
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
⎯
5000
μF
16
Adc
All
CO, max
⎯
Output Current
All
Io
0
Output Current Limit Inception (Hiccup Mode )
All
IO, lim
⎯
180
⎯
% Io
All
IO, s/c
⎯
3.5
⎯
Adc
VO,set = 0.75Vdc
η
82.0
%
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
92.5
%
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
⎯
95.0
300
⎯
kHz
%
All
Vpk
⎯
300
⎯
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
⎯
25
⎯
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
⎯
300
⎯
mV
All
ts
⎯
25
⎯
μs
Peak Deviation
Settling Time (Vo<10% peak deviation)
LINEAGE POWER
3
Data Sheet
September 9, 2008
Austin SuperLynxTM SIP Non-isolated Power Modules:
3.0 – 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A output current
Electrical Specifications (continued)
Parameter
Device
Symbol
Min
Typ
Max
Unit
All
Vpk
⎯
150
⎯
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
⎯
150
⎯
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
6,800,000
⎯
5.6 (0.2)
Unit
Hours
⎯
g (oz.)
4
Austin SuperLynxTM SIP Non-isolated Power Modules:
3.0 – 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A output current
Data Sheet
September 9, 2008
Feature Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions. See Feature Descriptions for additional information.
Parameter
Device
Symbol
Min
Typ
Max
Input High Voltage (Module OFF)
All
VIH
Input High Current
All
IIH
Input Low Voltage (Module ON)
All
Input Low Current
All
Unit
1.5
―
VIN,max
V
―
0.2
1
mA
VIL
-0.2
―
0.3
V
IIL
―
―
10
μA
All
Tdelay
―
3.9
―
msec
All
Tdelay
―
3.9
―
msec
All
Trise
―
4.2
8.5
msec
―
1
% VO, set
―
―
0.5
V
⎯
125
⎯
°C
Remote On/Off Signal interface
(VIN=VIN, min to VIN, max; Open collector pnp or equivalent
Compatible, Von/off signal referenced to GND
See feature description section)
Logic High
Logic Low
Turn-On Delay and Rise Times
o
(IO=IO, max , VIN = VIN, nom, TA = 25 C, )
Case 1: On/Off input is set to Logic Low (Module
ON) and then input power is applied (delay from
instant at which VIN =VIN, min until Vo=10% of Vo,set)
Case 2: Input power is applied for at least one second
and then the On/Off input is set to logic Low (delay from
instant at which Von/Off=0.3V until Vo=10% of Vo, set)
Output voltage Rise time (time for Vo to rise from 10%
of Vo,set to 90% of Vo, set)
Output voltage overshoot – Startup
o
IO= IO, max; VIN = 3.0 to 5.5Vdc, TA = 25 C
Remote Sense Range
Overtemperature Protection
All
Tref
(See Thermal Consideration section)
Input Undervoltage Lockout
Turn-on Threshold
All
2.2
V
Turn-off Threshold
All
2.0
V
LINEAGE POWER
5
Data Sheet
September 9, 2008
Austin SuperLynxTM SIP Non-isolated Power Modules:
3.0 – 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A output current
Characteristic Curves
The following figures provide typical characteristics for the Austin SuperLynxTM SIP modules at 25ºC.
96
90
93
87
EFFICIENCY, η (%)
EFFICIENCY, η (%)
90
84
81
VIN = 3.0V
78
VIN = 5.0V
75
VIN = 5.5V
72
87
84
81
VIN = 3.0V
78
VIN = 5.0V
75
VIN = 5.5V
72
0
4
8
12
16
0
4
OUTPUT CURRENT, IO (A)
8
12
16
OUTPUT CURRENT, IO (A)
Figure 1. Converter Efficiency versus Output Current
(Vout = 0.75Vdc).
Figure 4. Converter Efficiency versus Output Current
(Vout = 1.8Vdc).
93
100
97
90
87
EFFICIENCY, η (%)
EFFICIENCY, η (%)
94
84
81
VIN = 3.0V
78
VIN = 5.0V
75
VIN = 5.5V
72
91
88
85
82
VIN = 5.0V
76
VIN = 5.5V
73
0
4
8
12
16
0
OUTPUT CURRENT, IO (A)
97
88
94
EFFICIENCY, η (%)
100
91
85
82
79
VIN = 3.0V
VIN = 5.0V
73
8
12
16
Figure 5. Converter Efficiency versus Output Current
(Vout = 2.5Vdc).
94
76
4
OUTPUT CURRENT, IO (A)
Figure 2. Converter Efficiency versus Output Current
(Vout = 1.2Vdc).
EFFICIENCY, η (%)
VIN = 3.0V
79
VIN = 5.5V
70
91
88
85
VIN = 4.5V
82
VIN = 5.0V
79
VIN = 5.5V
76
0
4
8
12
16
OUTPUT CURRENT, IO (A)
Figure 3. Converter Efficiency versus Output Current
(Vout = 1.5Vdc).
LINEAGE POWER
0
4
8
12
16
OUTPUT CURRENT, IO (A)
Figure 6. Converter Efficiency versus Output Current
(Vout = 3.3Vdc).
6
Austin SuperLynxTM SIP Non-isolated Power Modules:
3.0 – 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A output current
Data Sheet
September 9, 2008
Characteristic Curves (continued)
TM
4
2
0
0.5
1.5
2.5
3.5
INPUT VOLTAGE, VIN (V)
VO (V) (20mV/div)
OUTPUT VOLTAGE
Figure 7. Input voltage vs. Input Current
(Vout = 2.5Vdc).
TIME, t (2μs/div)
VO (V) (20mV/div)
OUTPUT VOLTAGE
Figure 8. Typical Output Ripple and Noise
(Vin = 5.0V dc, Vo = 0.75 Vdc, Io=16A).
TIME, t (2μs/div)
Figure 9. Typical Output Ripple and Noise
(Vin = 5.0V dc, Vo = 3.3 Vdc, Io=16A).
LINEAGE POWER
4.5
5.5
VO (V) (200mV/div)
IO (A) (5A/div)
6
TIME, t (5 μs/div)
Figure 10. Transient Response to Dynamic Load
Change from 50% to 100% of full load (Vo = 3.3Vdc).
VO (V) (200mV/div)
8
IO (A) (5A/div)
10
OUTPUT CURRENT, OUTPUT VOLTAGE
Io =16A
12
TIME, t (5 μs/div)
Figure 11. Transient Response to Dynamic Load
Change from 100% to 50% of full load (Vo = 3.3 Vdc).
VO (V) (200mV/div)
INPUT CURRENT, IIN (A)
Io =8A
14
SIP modules at 25ºC.
IO (A) (5A/div)
Io =0A
16
OUTPUT CURRENT, OUTPUT VOLTAGE
18
OUTPUT CURRENT, OUTPUT VOLTAGE
The following figures provide typical characteristics for the Austin SuperLynx
TIME, t (10μs/div)
Figure 12. Transient Response to Dynamic Load
Change from 50% to 100% of full load (Vo = 5.0 Vdc,
Cext = 2x150 μF Polymer Capacitors).
7
Data Sheet
September 9, 2008
Austin SuperLynxTM SIP Non-isolated Power Modules:
3.0 – 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A output current
Characteristic Curves (continued)
VOV) (1V/div)
TIME, t (2 ms/div)
Figure 15. Typical Start-Up Using Remote On/Off with
Low-ESR external capacitors (Vin = 5.5Vdc, Vo =
3.3Vdc, Io = 16.0A, Co = 1050μF).
LINEAGE POWER
INPUT VOLTAGE
VNN (V) (2V/div)
OUTPUT VOLTAGE
VOV) (1V/div)
VOn/off (V) (2V/div)
TIME, t (2 ms/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,
On/Off VOLTAGE
VOn/off (V) (2V/div)
OUTPUT VOLTAGE
Figure 14. Typical Start-Up Using Remote On/Off (Vin
= 5.0Vdc, Vo = 3.3Vdc, Io = 16.0A).
On/Off VOLTAGE
VOn/off (V) (2V/div)
VOV) (1V/div)
TIME, t (2 ms/div)
Figure 16. Typical Start-Up with application of Vin
(Vin = 5.0Vdc, Vo = 3.3Vdc, Io = 16A).
VOV) (1V/div)
On/Off VOLTAGE
OUTPUT VOLTAGE
Figure 13. Transient Response to Dynamic Load
Change from 100% of 50% full load (Vo = 5.0 Vdc, Cext
= 2x150 μF Polymer Capacitors).
TIME, t (2 ms/div)
OUTPUT VOLTAGE
TIME, t (10μs/div)
IO (A) (10A/div)
OUTPUT CURRENT, OUTPUTVOLTAGE
IO (A) (5A/div)
VO (V) (200mV/div)
The following figures provide typical characteristics for the Austin SuperLynxTM SIP modules at 25ºC.
TIME, t (10ms/div)
Figure 18. Output short circuit Current (Vin = 5.0Vdc,
Vo = 0.75Vdc).
8
Austin SuperLynxTM SIP Non-isolated Power Modules:
3.0 – 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A output current
Data Sheet
September 9, 2008
Characteristic Curves (continued)
18
18
16
16
14
12
10
NC
8
100 LFM
6
200 LFM
4
300 LFM
2
400 LFM
0
20
30
40
50
60
70
80
90
O
OUTPUT CURRENT, Io (A)
OUTPUT CURRENT, Io (A)
The following figures provide thermal derating curves for the Austin SuperLynxTM SIP modules.
14
12
10
NC
8
6
100 LFM
200 LFM
4
300 LFM
2
400 LFM
0
20
30
40
50
60
70
80
90
O
AMBIENT TEMPERATURE, TA C
AMBIENT TEMPERATURE, TA C
Figure 19. Derating Output Current versus Local
Ambient Temperature and Airflow (Vin = 5.0,
Vo=3.3Vdc).
Figure 22. Derating Output Current versus Local
Ambient Temperature and Airflow (Vin = 3.3dc,
Vo=0.75 Vdc).
18
OUTPUT CURRENT, Io (A)
16
14
12
10
NC
8
6
100 LFM
200 LFM
4
300 LFM
2
400 LFM
0
20
30
40
50
60
70
80
90
O
AMBIENT TEMPERATURE, TA C
Figure 20. Derating Output Current versus Local
Ambient Temperature and Airflow (Vin = 5.0Vdc,
Vo=0.75 Vdc).
18
OUTPUT CURRENT, Io (A)
16
14
12
10
NC
8
6
100 LFM
200 LFM
4
300 LFM
2
400 LFM
0
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 = 3.3Vdc,
Vo=2.5 Vdc).
LINEAGE POWER
9
Data Sheet
September 9, 2008
Austin SuperLynxTM SIP Non-isolated Power Modules:
3.0 – 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A output current
Test Configurations
Design Considerations
CURRENT PROBE
TO OSCILLOSCOPE
LTEST
VIN(+)
BATTERY
1μH
CIN
CS 1000μF
Electrolytic
2x100μF
Tantalum
E.S.R.<0.1Ω
@ 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 23. Input Reflected Ripple Current Test
Setup.
Input Filtering
TM
Austin SuperLynx SIP module should be connected
to a low ac-impedance source. A highly inductive
source can affect the stability of the module. An input
capacitance must be placed directly adjacent to the
input pin of the module, to minimize input ripple
voltage and ensure module stability.
To minimize input voltage ripple, low-ESR polymer and
ceramic capacitors are recommended at the input of the
module. Figure 26 shows input ripple voltage (mVp-p)
for various outputs with 1x150 µF polymer capacitors
(Panasonic p/n: EEFUE0J151R, Sanyo p/n:
6TPE150M) in parallel with 1 x 47 µF ceramic capacitor
(Panasonic p/n: ECJ-5YB0J476M, Taiyo- Yuden p/n:
CEJMK432BJ476MMT) at full load. Figure 27 shows
the input ripple with 2x150 µF polymer capacitors in
parallel with 2 x 47 µF ceramic capacitor at full load.
300
RESISTIVE
LOAD
1uF
.
10uF
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.
Figure 24. Output Ripple and Noise Test Setup.
Rdistribution
Rcontact
Rcontact
VIN(+)
VO
RLOAD
VO
VIN
Rdistribution
Rcontact
Rcontact
COM
Rdistribution
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 25. Output Voltage and Efficiency Test Setup.
250
200
150
100
3.3Vin
50
5Vin
0
0.5
1
1.5
2
2.5
3
3.5
Output Voltage (Vdc)
Figure 26. Input ripple voltage for various output
with 1x150 µF polymer and1x47 µF ceramic
capacitors at the input (full load).
Input Ripple Voltage (mVp-p)
VO (+)
Input Ripple Voltage (mVp-p)
COPPER STRIP
200
180
160
140
120
100
80
60
3.3Vin
40
20
0
5Vin
0.5
1
1.5
2
2.5
3
3.5
VO. IO
Efficiency
η =
LINEAGE POWER
VIN. IIN
x
100 %
Output Voltage (Vdc)
Figure 27. Input ripple voltage for various output
with 2x150 µF polymer and 2x47 µF ceramic
capacitors at the input (full load).
10
Data Sheet
September 9, 2008
Austin SuperLynxTM SIP Non-isolated Power Modules:
3.0 – 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A 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 SuperLynx 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 20A in the positive
input lead.
11
Data Sheet
September 9, 2008
Austin SuperLynxTM SIP Non-isolated Power Modules:
3.0 – 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A output current
Feature Description
Output Voltage Programming
Remote On/Off
The output voltage of the Austin SuperLynxTM 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 29) between the TRIM and GND pins of the
module. Without an external resistor between the 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:
TM
The Austin SuperLynx SIP power modules feature an
On/Off pin for remote On/Off operation. The On/Off pin
is pulled high with an external pull-up resistor (typical
Rpull-up = 68k, ± 5%) as shown in Fig. 28. 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.
VIN+
For example, to program the output voltage of the
TM
Austin SuperLynx
module to 1.8 Vdc, Rtrim is
calculated is follows:
MODULE
Rpull-up
⎡ 21070
⎤
Rtrim = ⎢
− 5110⎥ Ω
⎣Vo − 0.7525
⎦
I ON/OFF
⎤
⎡ 21070
Rtrim = ⎢
− 5110⎥ Ω
⎦
⎣1.8 − 0.7525
ON/OFF
PWM Enable
+
VON/OFF
R1
Q2
Q1
Rtrim = 15.004 kΩ
CSS
R2
GND
_
V IN(+)
V O(+)
ON/OFF
TRIM
Figure 28. Circuit configuration for 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.
Input Undervoltage Lockout
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 protection in a fault condition, the unit is
equipped with a thermal shutdown circuit. The unit
will shutdown if the thermal reference point Tref,
o
exceeds 125 C (typical), but the thermal shutdown is
not intended as a guarantee that the unit will survive
temperatures beyond its rating. The module will
automatically restarts after it cools down.
LINEAGE POWER
LOAD
R trim
GND
Figure 29. Circuit configuration to program output
voltage using an external resistor.
The Austin SuperLynxTM can also be programmed by
applying a voltage between the TRIM and GND pins
(Figure 30). The following equation can be used to
determine the value of Vtrim needed to obtain a desired
output voltage Vo:
Vtrim = (0.7 − 0.1698 × {Vo − 0.7525})
For example, to program the output voltage of a
SuperLynxTM module to 3.3 Vdc, Vtrim is calculated as
follows:
Vtrim = (0.7 − 0.1698 × {3.3 − 0.7525})
Vtrim = 0.2670V
12
Data Sheet
September 9, 2008
Austin SuperLynxTM SIP Non-isolated Power Modules:
3.0 – 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A output current
Feature Descriptions (continued)
V IN(+)
V O(+)
ON/OFF
LOAD
TRIM
+
-
GND
for margining-down. Figure 31 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.
Vtrim
Vo
Rmargin-down
Figure 30. Circuit Configuration for programming
Output voltage using external voltage source.
Austin Lynx or
Lynx II Series
Q2
Table 1 provides Rtrim values required for some
common output voltages, while Table 2 provides values
of external voltage source, Vtrim for the same common
output voltages.
Trim
Rmargin-up
Table 1
VO, (V)
Rtrim
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
Table 2
VO, set (V)
Vtrim (V)
0.7525
Open
1.2
0.6240
1.5
0.5731
1.8
0.5221
2.5
0.4033
3.3
0.2670
By a using 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.
Q1
GND
Figure 31. Circuit Configuration for margining
Output voltage.
Remote Sense
The Austin SuperLynxTM SIP 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 32). The voltage
between the Sense pin and Vo pin must not exceed
0.5V.
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 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 the output pin
of the module.
Voltage Margining
Output voltage margining can be implemented in the
TM
Austin SuperLynx 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
LINEAGE POWER
13
Austin SuperLynxTM SIP Non-isolated Power Modules:
3.0 – 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A output current
Data Sheet
September 9, 2008
Feature Descriptions (continued)
Rdistribution Rcontact
Rcontact Rdistribution
VIN(+)
VO
Sense
RLOAD
Rdistribution Rcontact
Rcontact Rdistribution
COM
COM
Figure 32. Remote sense circuit configuration
LINEAGE POWER
14
Austin SuperLynxTM SIP Non-isolated Power Modules:
3.0 – 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A output current
Data Sheet
September 9, 2008
Thermal Considerations
The 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 Fig. 33. Note that the airflow is parallel to
the long axis of the module as shown in Fig. 34. The
derating data applies to airflow in either direction of the
module’s long axis.
25.4_
(1.0)
Wind Tunnel
PWBs
airflow conditions ranging from natural convection and
up to 2m/s (400 ft./min) are shown in the Characteristics
Curves section.
Airflow
Top View
Power Module
Tref
Figure 34. Tref Temperature measurement location
Post solder Cleaning and Drying
Considerations
76.2_
(3.0)
x
5.97_
(0.235)
Probe Loc ation
for measuring
airflow and
ambient
temperature
Air
flow
Figure 33. Thermal Test Set-up.
The thermal reference point, Tref used in the
specifications is shown in Figure 33. 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.
Heat Transfer via Convection
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.
Increased airflow over the module enhances the heat
transfer via convection. Thermal derating curves
showing the maximum output current that can be
delivered at different local ambient temperature (TA) for
LINEAGE POWER
15
Data Sheet
September 9, 2008
Austin SuperLynxTM SIP Non-isolated Power Modules:
3.0 – 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A 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.)
Back View
Pin
Function
1
Vo
2
Vo
3
Vo,sense
4
Vo
5
GND
6
GND
7
VIN
8
VIN
9
TRIM
10
ON/OFF
LINEAGE POWER
Side View
16
Data Sheet
September 9, 2008
Austin SuperLynxTM SIP Non-isolated Power Modules:
3.0 – 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A 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
Vo
3
Vo,sense
4
Vo
5
GND
6
GND
7
VIN
8
VIN
9
TRIM
10
ON/OFF
LINEAGE POWER
17
Austin SuperLynxTM SIP Non-isolated Power Modules:
3.0 – 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A output current
Data Sheet
September 9, 2008
Ordering Information
Please contact your Lineage Power Sales Representative for pricing, availability and optional features.
Table 3. Device Codes
Product codes
Input
Voltage
Output
Voltage
Output
Current
Efficiency
3.3V @ 16A
Connector
Type
Comcodes
AXH016A0X3
3.0 – 5.5Vdc
0.75 – 3.3Vdc
16A
95.0%
SIP
108979592
AXH016A0X3Z
3.0 – 5.5Vdc
0.75 – 3.3Vdc
16A
95.0%
SIP
CC109104964
AXH016A0X3-12*
3.0 – 5.5Vdc
0.75 – 3.3Vdc
16A
95.0%
SIP
108993434
* Special code, consult factory before ordering
The -12 code has a 100Ω resistor between sense and output pins, internal to the module. Standard code, without
the -12 suffix, has a 10Ω resistor between sense and output pins.
-Z refers to RoHS-compliant versions.
Table 4. Device Option
Option**
Suffix***
Long Pins 5.08 mm ± 0.25mm (0.200 in. ± 0.010 in.)
5
** Contact Lineage Power Sales Representative for availability of these options, samples, minimum order quantity and lead times
*** When adding multiple options to the product code, add suffix numbers in the descending order
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: DS03-085 ver. 1.52
PDF name: austin-superlynx-sip-ds.pdf