Data Sheet
October 2008
QW030xx DUAL Series Power Modules: dc-dc Converters;
18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs
The QW030-Series Power Modules use advanced, surface-
mount technology and deliver high-quality, efficient, and
compact dc-dc conversion.
Applications
nDistributed power architectures
nWorkstations
nComputer equipment
nCommunications equipment
nOptical transport equipment
Options
nHeat sinks available for extended operation
nChoice of remote on/off logic configurations
nChoice of two pin lengths
Features
nSmall size: 36.8 mm x 57.9 mm x 12.7 mm
(1.45 in. x 2.28 in. x 0.50 in.)
nHigh power density
nHigh efficiency: 88% typical
nLow output noise
nConstant frequency
nIndustry-standard pinout
nMetal case
n2:1 input voltage range
nOvervoltage and overcurrent protection
nRemote on/off
nAdjustable output voltage
nISO* 9001 and ISO 14001 Certified manufacturing
facilities
nUL 60950 Recognized, CSA C22.2 No. 60950-00
Certified, VDE § 0805 (IEC60950) Licensed
nCE mark meets 73/23/EEC and 93/68/EEC
directives**
* ISO is a registered trademark of the International Organization
for Standardization.
UL is a registered trademark of Underwriters Laboratories, Inc.
CSA is a registered trademark of Canadian Standards Assn.
§ VDE is a trademark of Verband Deutscher Elektrotechniker e.V.
**This product is intended for integration into end-use equipment.
All the required procedures for CE marking of end-use equip-
ment should be followed. (The CE mark is placed on selected
products.)
Description
The QW030-Series Power Modules are dc-dc converters that operate over an input voltage range of 36 Vdc to
75 Vdc and provide precisely regulated dc outputs. The outputs are fully isolated from the inputs, allowing ver-
satile polarity configurations and grounding connections. The modules have maximum power ratings of 30 W
to 36 W at a typical full-load efficiency of up to 88%.
These encapsulated modules offer a metal case for optimum thermal performance. Threaded-through holes are
provided to allow easy mounting or addition of a heat sink for high-temperature applications. The standard feature
set includes remote sensing, output trim, and remote on/off for convenient flexibility in distributed power
applications.
2Lineage Power
Data Sheet
October 2008
18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs
QW030xx DUAL Series Power Modules: dc-dc Converters;
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 device reliability.
* Maximum case temperature varies based on power dissipation. See power derating curves for details.
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions.
Table 1. Input Specifications
Fusing Considerations
CAUTION: This power module is not internally fused. An input line fuse must always be used.
This encapsulated power module can be used in a wide variety of applications, ranging from simple stand-alone
operation to an integrated part of a sophisticated 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 normal-blow fuse with a maximum rating of 5 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 for further information.
Parameter Device Symbol Min Max Unit
Input Voltage:
Continuous
Transient (100 ms)
QW030xx
QW030xx
I
VI
VI, trans
80
100
Vdc
V
Operating Case Temperature
(See Thermal Considerations section.)
QW030xx Tc –40 105* °C
Storage Temperature QW030xx Tstg –55 125 °C
I/O Isolation Voltage
(Note case is tied to input)
QW030xx 1500 Vdc
Parameter Device Symbol Min Typ Max Unit
Operating Input Voltage:
QW030xx QW030xx VI36 48 75 Vdc
Maximum Input Current
(VI = 0 V to 75 V; IO = IO, max):
QW030xx QW030xx II, max ——2.2 A
Inrush Transient QW030xx i2t—0.2A
2s
Input Reflected-ripple Current, Peak-to-peak
(5 Hz to 20 MHz, 12 µH source impedance;
see Test Configurations section.)
QW030xx I 15 mAp-p
Input Ripple Rejection (120 Hz) QW030xx 50 dB
Lineage Power 3
Data Sheet
October 2008 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs
QW030xx DUAL Series Power Modules: dc-dc Converters;
Electrical Specifications (continued)
Table 2. Output Specifications
* Engineering estimate.
!Itot = I01+I02 Sum should not exceed this number
Parameter Device
Suffix Symbol Min Typ Max Unit
Output Voltage Set Point
(VI = 48 V; IO1 = IO2,= IO,min)
CL
CL
BK
BK
AJ
AJ
VO1, set
VO2, set
VO1, set
VO2, set
VO1, set
VO2, set
14.7
-14.7
11.76
-11.76
4.85
-4.85
15.3
-15.3
12.24
-12.24
5.15
-5.15
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Output Voltage
(Over all operating input voltage, resistive
load, and temperature conditions until end of
life. See Test Configurations section.)
CL
CL
BK
BK
AJ
AJ
VO1
VO2
VO1
VO2
VO1
VO2
13.8
-13.8
11.04
-11.04
4.75
-4.75
16.2
-16.2
12.96
-12.96
5.25
-5.25
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Output Voltage Regulation
Line (VI = VI,min to VI,max; I01=I02)
Load (VI = VI,nom; I01 = I01min to Itot/2 and
I02 = I02min to Itot/2)
Cross Regulation V01, V02
(VI=VI,nom; I01 or I02= other output = max
load)
Temperature (Tc = -40 to 100)
Qx030xx
Qx030xx
Qx030xx
Qx030xx
V01,V02
V01+V02
V01+V02
V01,V02
V01,V02
V01,V02
0.5
0.25
0.25
1
±4
0.5
0.75
0.5
0.5
2
±6
1
%
%
%
%
%
Output Ripple and Noise Voltage
(See Test Configurations section.):
Measured across one 2.2 µF ceramic
capacitor:
RMS
Peak-to-peak (5 Hz to 20 MHz)
CL
CL
BK
BK
AJ
AJ
50
150
40
120
50
150
mVrms
mVp-p
mVrms
mVp-p
mVrms
mVp-p
External Load Capacitance on each output Qx030xx 0 220 µF
Output Current
(At IO < IO,min the module may exceed the
ripple specifications)
CL
CL
CL
BK
BK
BK
AJ
AJ
AJ
I01
I02
Itot!
I01
I02
Itot!
I01
I02
Itot!
0.25
0.25
0.5
0.25
0.25
0.5
0.25
0.25
0.5
1.75
1.75
2.0
2.5
2.5
3.0
3
3
6
A
A
A
A
A
A
A
A
A
Output Current-limit Inception
(VO = 90% of VO, set)
CL
BK
AJ
Itot
Itot
Itot
3.0
3.7
7
A
A
A
Output Short-circuit Current (VO = 0.25 V) CL
BK
AJ
Itotsc
Itotsc
Itotsc
4.5
5.5
10
A
A
A
4Lineage Power
Data Sheet
October 2008
18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs
QW030xx DUAL Series Power Modules: dc-dc Converters;
Electrical Specifications (continued)
Table 2. Output Specifications (continued)
* Engineering estimate.
Table 3. Isolation Specifications
Table 4. General Specifications
Parameter Device
Suffix Symbol Min Typ Max Unit
Efficiency (VI = 48 V; IO = IO, max):
TA = 25 °C
TC = 25 °C
CL
BK
AJ
η
η
η
88
88
85
%
%
%
Switching Frequency QW030xx 360 kHz
Dynamic Response
(ΔIO/Δt = 1 A/10 µs, VI = 48 V, TC = 25 °C):
Load Change from IO = 50% to 75% of IO, max:
Peak Deviation
Settling Time (VO < 10% of peak deviation)
Load Change from IO = 50% to 25% of IO, max:
Peak Deviation
Settling Time (VO < 10% of peak deviation)
QW030xx
QW030xx
QW030xx
QW030xx
2.5
5.0
2.5
5.0
%VO, set
ms
%VO, set
ms
Parameter Device Min Typ Max Unit
Isolation Capacitance (engineering estimate) QW030xx 600 pF
Isolation Resistance QW030xx 10 MΩ
Parameter Device Min Typ Max Unit
Calculated MTBF
(IO = 80% of IO, max; TC = 40 °C)
QW030xx 5,000,000 hours
Weight QW030xx 75 (2.7) g (oz.)
Lineage Power 5
Data Sheet
October 2008 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs
QW030xx DUAL Series Power Modules: dc-dc Converters;
Feature Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions. See Feature Descriptions section of this data sheet for additional information.
* Engineering estimate.
Parameter Device
Suffix Symbol Min Typ Max Unit
Remote On/Off Signal Interface
(VI = VI, min to VI, max; open collector or equivalent
compatible; signal referenced to VI(–) terminal.):
Negative Logic: Device Code Suffix “1”:
Logic Low—Module On
Logic High—Module Off
Positive Logic: If Device Code Suffix “1” Is Not
Specified:
Logic Low—Module Off
Logic High—Module On
Module Specifications:
On/Off Current—Logic Low
On/Off Voltage:
Logic Low
Logic High (Ion/off = 0 mA)
Open Collector Switch Specifications:
Leakage Current During Logic High
(Von/off = 15 V)
Output Low Voltage During Logic Low
(Ion/off = 1 mA)
All
All
All
All
All
Ion/off
Von/off
Von/off
Ion/off
Von/off
–0.7
1.0
1.2
15
50
1.2
mA
V
V
µA
V
Turn-on Delay and Rise Times
(at 80% of IO, max; TA = 25 °C):
Case 1: On/Off Input Is Set for Logic High and
then Input Power Is Applied (delay from point
at which VI = VI, min until VO = 10% of VO, nom).
Case 2: Input Power Is Applied for at Least One
Second, and Then the On/Off Input Is Set to
Logic High (delay from point at which Von/off =
0.9 V until VO = 10% of VO, nom).
Output Voltage Rise Time (time for VO to rise
from 10% of VO, nom to 90% of VO, nom)
Output Voltage Overshoot (at 80% of IO, max;
TA = 25 °C)
All
All
All
All
Tdelay
Tdelay
Trise
8
2
10
5*
ms
ms
ms
%
Output Voltage Adjustment
(See Feature Descriptions section.):
Output Voltage Set-point Adjustment Range
(trim) QW030xx 75 110 %VO, nom
Output Overvoltage Protection (clamp) CL
CL
BK
BK
AJ
AJ
VO1, ovp
VO2, ovp
VO1, ovp
VO2, ovp
VO1, ovp
VO2, ovp
17.1
-17.1
13.7
-13.7
5.9
-5.9
22.5
-22.5
18.0*
-18.0*
7
-7
V
V
V
V
V
V
QW030xx DUAL Series Power Module: dc-dc Converters; Data Sheet
18 Vdc to 36Vdc or 36 Vdc to 75 Vdc Inputs October 2008
6 Lineage Power
Data Sheet QW030xx DUAL Series Power Module: dc-dc Converters;
October 2008 18 Vdc to 36Vdc or 36 Vdc to 75 Vdc Inputs
Lineage Power 7
8Lineage Power
Data Sheet
October 2008
18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs
QW030xx DUAL Series Power Modules: dc-dc Converters;
Design Considerations
Grounding Considerations
For the QW modules, the case is internally connected
to the VI(+) pin.
Input Source Impedance
The power module should be connected to a low
ac-impedance input source. Highly inductive source
impedances can affect the stability of the power mod-
ule. If the input source inductance exceeds 4 µH, a
33 µF electrolytic capacitor (ESR < 0.7 ohm at 100 kHz)
mounted close to the power module helps ensure sta-
bility of the unit.
Safety Considerations
QW Modules
For safety-agency approval of the system in which the
power module is used, the power module must be
installed in compliance with the spacing and separation
requirements of the end-use safety agency standard,
i.e., UL60950, CSA C22.2 No. 60950-00, and VDE
0805 (IEC60950).
If the input source is non-SELV (ELV or a hazardous
voltage greater than 60 Vdc and less than or equal to
75 Vdc), for the module’s output to be considered
meeting the requirements of safety extra-low voltage
(SELV), all of the following must be true:
nThe input source is to be provided with reinforced
insulation from any hazardous voltages, including the
ac mains.
nOne VI pin and one VO pin are to be grounded, or
both the input and output pins are to be kept floating.
nThe input pins of the module are not operator acces-
sible.
nAnother SELV reliability test is conducted on the
whole system, as required by the safety agencies, on
the combination of supply source and the subject
module to verify that under a single fault, hazardous
voltages do not appear at the module’s output.
Note: Do not ground either of the input pins of the
module without grounding one of the output pins.
This may allow a non-SELV voltage to appear
between the output pin and ground.
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 maxi-
mum 5 A normal-blow fuse in the ungrounded lead.
Feature Descriptions
Overcurrent Protection
To provide protection in a fault (output overload) condi-
tion, the unit is equipped with internal current-limiting
circuitry and can endure current limiting for an unlim-
ited duration. At the point of current-limit inception, the
unit shifts from voltage control to current control. If the
output voltage is pulled very low during a severe fault,
the current-limit circuit can exhibit either foldback or
tailout characteristics (output-current decrease or
increase). The unit operates normally once the output
current is brought back into its specified range.
Remote On/Off
Two remote on/off options are available. Positive logic
remote on/off turns the module on during a logic-high
voltage on the remote ON/OFF pin, and off during a
logic low. Negative logic remote on/off, device code
suffix “1,” turns the module off during logic-high voltage
and on during a logic low.
To turn the power module on and off, the user must
supply a switch to control the voltage between the
on/off terminal and the VI(–) terminal (Von/off). The
switch may be an open collector or equivalent (see
Figure 4). A logic low is Von/off = –0.7 V to 1.2 V. The
maximum Ion/off during a logic low is 1 mA. The switch
should maintain a logic-low voltage while sinking 1 mA.
During a logic high, the maximum Von/off generated by
the power module is 15 V. The maximum allowable
leakage current of the switch at Von/off = 15 V is 50 µA.
Lineage Power 9
Data Sheet
October 2008 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs
QW030xx DUAL Series Power Modules: dc-dc Converters;
Feature Descriptions (continued)
Remote On/Off (continued)
If not using the remote on/off feature, do one of the
following:
For positive logic, leave the ON/OFF pin open.
For negative logic, short the ON/OFF pin to VI(–).
8-758(C).a
Figure 4. QW030-Series Remote On/Off
Implementation
Output Voltage Set-Point Adjustment
(Trim)
Output voltage trim allows the user to increase or
decrease the output voltage set point of a module. This
is accomplished by connecting an external resistor
between the TRIM pin and either the V01(+) or V02(–)
pins. The trim resistor should be positioned close to the
module.
If not using the trim feature, leave the TRIM pin open.
With an external resistor between the TRIM and V01(+)
pins (Radj-up), the output voltage set point (VO, adj)
increases (see Figure 5). The following equation
determines the required external-resistor value to
obtain a change in output voltage from VO, nom to VO, adj.
With an external resistor connected between the TRIM
and V02(–) pins (Radj-down), the output voltage set point
(VO, adj) decreases (see Figure 6).
The following equation determines the required exter-
nal-resistor value to obtain a change in output voltage
from VO, nom to VO, adj.
The voltage between the VO1(+)and Com., and
VO2(–)and Com. terminals must not exceed the mini-
mum output overvoltage protection value shown in the
Feature Specifications table. This limit includes any
increase in voltage due to remote-sense compensation
and output voltage set-point adjustment (trim). See Fig-
ure 5.
Consult your Lineage Power Account Manager or
Application Engineer if the output voltage needs to be
increased more than the above limitation.
The amount of power delivered by the module is
defined as the voltage at the output terminals multiplied
by the output current. When using trim, the output volt-
age of the module can be increased, which at the same
output current would increase the power output of the
module. Care should be taken to ensure that the maxi-
mum output power of the module remains at or below
the maximum rated power.
8-715.v
Figure 5. QW030-Series Circuit Configuration to
Increase Output Voltage
+
Ion/off
-
Von/off
REMOTE
ON/OFF
VI(+)
VI(-)
Radj-up Vo,adj
Vo,adj - Vo,nom
---------------------------------------- 2xVo,nom
1.225
------------------------- -1
⎝⎠
⎛⎞
10000 - 1000=
Radj-down 10000 Vo,adj×
Vo,nom Vo,adj
-----------------------------------------
⎝⎠
⎛⎞
- 1000=
VI(+)
VI(-)
ON/OFF
(+)
(-)
TRIM
Radj-up
RLOAD1
V01
V02
RLOAD2
COM
NC
10 Lineage Power
Data She et
October 2008
18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs
QW030xx DUAL Series Power Modules: dc-dc Converters;
.Feature Descriptions (continued)
Output Voltage Set-Point Adjustment
(Trim)(continued)
8-715.vf
Figure 6. QW030-Series Circuit Configuration to
Decrease Output Voltage
Output Overvoltage Protection
The output overvoltage clamp consists of control
circuitry, independent of the primary regulation loop,
that monitors the voltage on the output terminals. This
control loop has a higher voltage set point than the
primary loop (see the Feature Specifications table). In
a fault condition, the overvoltage clamp ensures that
the output voltage does not exceed VO, clamp, max. This
provides a redundant voltage-control that reduces the
risk of output overvoltage.
Overtemperature Protection
These modules feature overtemperature protection to
safeguard the modules against thermal damage.
When the temperature ex ceeds the overtemperature
thresho ld given in the fea ture spe ci ficat ion s table, the
module will limit the available output current in order to
help protect against thermal damage. The overcurrent
inception point will gradually move back to its original
level as the module is cooled below the overtempera-
ture threshold.
Input Undervoltage Lockout
At input voltages below the input undervoltage lockout
limit, the module operation is disabled. The module will
begin to operate at an input voltage between the under-
voltage lockout limit and the minimum operating input
voltage.
Thermal Considerations
Introduction
The power modules operate in a variety of thermal
environments; however, sufficient cooling should be
provided to help ensure reliable operation of the unit.
Heat-dissipating components inside the unit are ther-
mally coupled to the case. Heat is removed by conduc-
tion, convection, and radiation to the surrounding
environment. Proper cooling can be verified by mea-
suring the case temperature. The case temperature
should be measured at the position indicated in
Figure 7.
8-2104.a
Note: Top view, pin locations are for ref erence only.
Measurements shown in millimeters and (inches).
Figure 7. QW 030 -Ser ies Case Temperat ure
Measurement Location
The temperature at this location should not exceed
105 °C. The output power of the module should not
exceed the rated power for the module as listed in the
Ordering Information table.
Although the maximum case temperature of the power
modules is 105 °C, you can limit this temperature to a
lower value for extremely high reliability.
V
I
(+)
V
I
(-)
ON/OFF
(+)
V
O
2(-)
TRIM
COM
R
adj-down
R
LOAD1
V
01
R
LOAD2
14
(0.55)
VI(-)
ON/OFF
VI(+)
(-)
TRIM
(+)
33 (1.30)
V
01
COM
V
02
NC
Lineage Power 11
Data Sheet
October 2008 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs
QW030xx DUAL Series Power Modules: dc-dc Converters;
Thermal Considerations (continued)
Heat Transfer Without Heat Sinks
Increasing airflow over the module enhances the heat
transfer via convection. Figures 8 and 10 show the
maximum power that can be dissipated by the module
without exceeding the maximum case temperature ver-
sus local ambient temperature (TA) for natural convec-
tion through 3 m/s (600 ft./min.).
Systems in which these power modules may be used
typically generate natural convection airflow rates of
0.3 ms–1 (60 ft./min.) due to other heat-dissipating com-
ponents in the system. Therefore, the natural convec-
tion condition represents airflow rates of up to 0.3 ms–1
(60 ft./min.). Use of Figure 8 is shown in the following
example.
Example
What is the minimum airflow necessary for a
QW030BK operating at VI = 48 V, an output current of
1.5 A, each and a maximum ambient temperature of 89
°C?
Solution
Given: VI = 48 V
IO1 = 1.5 A, IO2 = 1.5 A
TA = 89 °C
Determine PD (Use Figure 9):
PD = 4.5 W
Determine airflow (v) (Use Figure 8):
v = 3.0 m/s (600 ft./min.)
1-0206
Figure 8. QW030BK POWER DERATING CURVE
1-0204
Figure 9. QW030BK Power dissipation With
Balanced Loads
1-0205
Figure 10. QW030BK Power Dissipation with
Unbalanced Loads with Io1 = 0.5 A
LOCAL AMBIENT TEMPERATURE, TA ( C)
POWER DISSIPATION, PD (W)
40 50 60 70 80 90 110100
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
3.0 m/s (600 ft./min.)
2.0 m/s (400 ft./min.)
1.0 m/s (200 ft./min.)
NATURAL CONVECTION
MAX CASE TEMP.
OUTPUT CURRENT, IO1 = IO2 (A)
POWER DISSIPATION, PD (W)
0 0.5 1 1.5 2 2.5
6
5
4
3
2
1
0
VI = 48 V
VI = 36 V
VI = 75 V
OUTPUT CURRENT, IO2 (A)
POWER DISSIPATION, PD (W)
0 0.5 1 1.5 2 2.5
6
5
4
3
2
1
VI = 48 V
VI = 36 V
VI = 75 V
3.0
Lineage Power
Data Sheet
October 2008
18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs
QW030xx DUAL Series Power Modules: dc-dc Converters;
Thermal Considerations (continued)
Heat Transfer with Heat Sinks
The power modules have through-threaded, M3 x 0.5
mounting holes, which enable heat sinks or cold plates
to attach to the module. The mounting torque must not
exceed 0.56 N-m (5 in.-lb.). For a screw attachment
from the pin side, the recommended hole size on the
customer’s PWB around the mounting holes is 0.130
± 0.005 inches. The mounting torque from the pin side
must not exceed 0.25 N-m (2.2 in.-lbs.).
Thermal derating with heat sinks is expressed by using
the overall thermal resistance of the module. Total
module thermal resistance (θca) is defined as the max-
imum case temperature rise (ΔTC, max) divided by the
module power dissipation (PD):
The location to measure case temperature (TC) is
shown in Figure 7. Consult your Lineage Power
Account Manager or Application Engineer for case-to-
ambient thermal resistance vs. airflow for various heat
sink configurations, heights, and orientations. Longitu-
dinal orientation is defined as the long axis of the mod-
ule that is parallel to the airflow direction, whereas in
the transverse orientation, the long axis is perpendicu-
lar to the airflow. These curves are obtained by experi-
mental testing of heat sinks, which are offered in the
product catalog.
These measured resistances are from heat transfer
from the sides and bottom of the module as well as the
top side with the attached heat sink; therefore, the
case-to-ambient thermal resistances shown are gener-
ally lower than the resistance of the heat sink by itself.
The module used to collect the data in the case-to-
ambient thermal resistance curves had a thermal-con-
ductive dry pad between the case and the heat sink to
minimize contact resistance.
Custom Heat Sinks
A more detailed model can be used to determine the
required thermal resistance of a heat sink to provide
necessary cooling. The total module resistance can be
separated into a resistance from case-to-sink (θcs) and
sink-to-ambient (θsa) as shown in Figure 11.
8-1304
Figure 11. QW030-Series Resistance from Case-to-
Sink and Sink-to-Ambient
For a managed interface using thermal grease or foils,
a value of θcs = 0.1 °C/W to 0.3 °C/W is typical. The
solution for heat sink resistance is:
This equation assumes that all dissipated power must
be shed by the heat sink. Depending on the user-
defined application environment, a more accurate
model, including heat transfer from the sides and bot-
tom of the module, can be used. This equation pro-
vides a conservative estimate for such instances.
Layout Considerations
Copper paths must not be routed beneath the power
module standoffs. For additional layout guidelines,
refer to the FLTR100V10 or FLTR100V20 data sheet.
θca ΔTC max,
PD
-------------------
[]
TCTA()
PD
------------------------
==
PD
TCTSTA
θcs θsa
θsa TC TA()
PD
---------------------------θcs=
12
12
Lineage Power 13
Data Sheet
October 2008 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs
QW030xx DUAL Series Power Modules: dc-dc Converters;
Outline Diagram
Dimensions are in millimeters and (inches).
Tolerances: x.x mm ± 0.5 mm (x.xx in. ± 0.02 in.)
x.xx mm ± 0.25 mm (x.xxx in. ± 0.010 in.)
Top View
Side View
Bottom View
8-1769
* Side label includes Lineage name, product designation, safety agency markings, input/output voltage and current ratings, and bar code.
57.9
(2.28)
36.8
(1.45)
SIDE LABEL
1.02 (0.040) DIA
SOLDER-PLATED
BRASS, ALL PLACES
12.7
(0.50)
0.51
(0.020)
4.1 (0.16) MIN,
ALL PLACES
6.1 (0.24), 4 PLA
SIDE LABEL *
3.6
(0.14)
10.9
(0.43)
5.3
(0.21)
26.16
(1.030)
15.24
(0.600)
5.3
(0.21)
MOUNTING INSERTS
M3 x 0.5 THROUGH,
2 PLACES
(-)
COM
TRIM
Nc
(+)V
I
(+)
ON/OFF
V
I
(-)
3.81
(0.150)
7.62
(0.300)
11.43
(0.450)
15.24
(0.600)
50.80
(2.000)
7.62
(0.300) 47.2
(1.86)
V
02
V
01
14Lineage Power
Data Sheet
October 2008
18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs
QW030xx DUAL Series Power Modules: dc-dc Converters;
Recommended Hole Pattern
Component-side footprint.
Dimensions are in millimeters and (inches).
8-1769p2
Ordering Information
Please contact your Lineage Power Account Manager or Field Application Engineer for pricing and availability.
Table 5. Device Codes
Table 6. Device Options
Input
Voltage
Output
Voltage
Output
Power
Output
Current
Remote On/
Off Logic
Device
Code Comcode
48 Vdc +12, -12 36W 2.5A, 2.5A Negative QW030BK1 108958885
48 Vdc +15, -15 30W 1.75A, 1.75A Negative QW030CL1 108962176
48 Vdc +5, -5 30W 3A, 3A Negative QW030AJ1 108963687
Option Device Code Suffix
Short pins: 2.79 mm ± 0.25 mm
(0.110 in. ± 0.010 in.)
8
Short pins: 3.68 mm ± 0.25 mm
(0.145 in. ± 0.010 in.)
6
Negative logic On/Off 1
3.6
(0.14)
10.9
(0.43)
26.16
(1.030)
15.24
(0.600)
7.62
(0.300)
5.3
(0.21)
MOUNTING INSERTS
M3 x 0.5 THROUGH,
2 PLACES
(-)
TRIM
NC
(+)
V
I
(+)
ON/OFF
V
I
(-)
50.80
(2.000)
5.3
(0.21)
47.2
(1.86)
15.24
(0.600)7.62
(0.300)
11.43
(0.450)
3.81
(0.150)
V
01
V
02
COM
Advance Data Sheet
April 2008
18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs
QW030xx DUAL Series Power Modules: dc-dc Converters;OOct
October 2008
ADS01-046EPS (Replaces ADS01-045EPS)
World Wide Headquarters
Lineag e Power Co rporation
30 00 Skyline Drive, Mesquite, TX 75149, USA
+1-800-526-7819
(Outside U.S.A.: +1- 97 2-2 84 -2626)
www.line ag epower.com
e-m ail: techsupport1@linea gepower.com
Asia-Pacific Headquarters
Tel: +65 6 41 6 4283
Europe, Middle-East and Afric a He adquarters
Tel: +49 8 9 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.