LINEAGEPOWER QSK033A0B7641-H

Data Sheet
February 2, 2009
QSK033A0B Series Power Modules; DC-DC Converters
36-60 Vdc Input; 12Vdc Output; 33A Output Current
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
High efficiency – 94% at 12V full load
ƒ
Delivers up to 33A output current
ƒ
Low output ripple and noise
ƒ
Industry standard Quarter brick:
57.9 mm x 36.8 mm x 10.6 mm
RoHS Compliant
Applications
(2.28 in x 1.45 in x 0.42 in)
ƒ
Constant switching frequency
Distributed power architectures
ƒ
Positive Remote On/Off logic
ƒ
Intermediate bus voltage applications
ƒ
Output over current/voltage protection
ƒ
Servers and storage applications
ƒ
Over temperature protection
ƒ
Networking equipment including Power over
Ethernet (PoE)
ƒ
ƒ
Wide operating temperature range (-40°C to 85°C)
ƒ
ISO** 9001 certified manufacturing facilities
ƒ
UL* Recognized to UL60950-1 and CSA C22.2 No.
‡
60950-1, and EN 60950-1 (VDE 0805): 2001-12
Licensed
ƒ
2250 Vdc Isolation tested in compliance with IEEE
¤
802.3 PoE standards
Options
ƒ
Negative Remote On/Off logic
ƒ
Active load sharing (Parallel Operation)
ƒ
Baseplate option (-H)
ƒ
Auto restart after fault shutdown
ƒ
Case ground pin
†
Description
The QSK033A0B series of dc-dc converters are a new generation of DC/DC power modules designed to support
12Vdc intermediate bus applications where multiple low voltages are subsequently generated using point of load
(POL) converters. The QSK033A0B series are enhanced from their predecessor QBK033A0B series, with
improvements to the internal shutdown control, improved response to input voltage transients, and inclusion of output
reverse current protection during startup. The QSK033A0B series operate from an input voltage range of 36 to 60Vdc
and provide up to 33A output current at 12V in an industry standard quarter brick. The converter incorporates
synchronous rectification technology and innovative packaging techniques to achieve efficiency reaching 94% at 12V
full load. This leads to lower power dissipations such that for many applications a heat sink is not required.
The output is fully isolated from the input, allowing versatile polarity configurations and grounding connections. Builtin filtering for both input and output minimizes the need for external filtering.
* 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
¤ IEEE and 802 are registered trademarks of the Institute of Electrical and Electronics Engineers, Incorporated.
‡
Document No: DS08-007 ver 1.0
PDF Name: QSK033A0B_ds.pdf
Data Sheet
February 2, 2009
QSK033A0B Series Power Modules; DC-DC Converters
36 – 60 Vdc Input; 12Vdc Output; 33A 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 device reliability.
Parameter
Device
Symbol
Min
VIN
-0.3
Max
Unit
Input Voltage*
Continuous
Operating transient ≤ 100mS
Non- operating continuous
60
Vdc
100
Vdc
VIN
-0.3
100
Vdc
All
TA
-40
85
°C
All
Tstg
-55
125
°C
I/O Isolation Voltage (100% factory Hi-Pot tested)
All
2250
⎯
⎯
* Input over voltage protection will shutdown the output voltage when the input voltage exceeds threshold level.
Vdc
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
Symbol
Min
Typ
Max
Unit
Operating Input Voltage
Device
VIN
36
48
60
Vdc
Maximum Input Current
IIN,max
-
-
13
Adc
2
-
-
1
As
24
-
mAp-p
-
dB
(VIN=0V to 60V, IO=IO, max)
Inrush Transient
All
It
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 12μH source impedance; VIN= 48V,
IO= IOmax ; see Figure 9)
All
-
Input Ripple Rejection (120Hz)
All
50
2
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 an
integrated part of 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 fast-acting fuse with a maximum rating of 30 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 2, 2009
QSK033A0B Series Power Modules; DC-DC Converters
36 – 60 Vdc Input; 12Vdc Output; 33A Output Current
Electrical Specifications (continued)
Parameter
Output Voltage Set-point
(VIN=VIN,nom, IO=15A, Ta =25°C)
Device
Symbol
All
VO, set
Output Voltage
(Over all operating input voltage, resistive load,
and temperature conditions until end of life)
VO
Min
Typ
Max
Unit
12
Vdc
11.4
⎯
12.6
Vdc
mV
Output Regulation
Line (VIN=VIN, min to VIN, max)
All
⎯
24
36
Load (IO=IO, min to IO, max)
All
⎯
360
600
mV
Temperature (TA = -40ºC to +85ºC)
All
⎯
⎯
250
mV
RMS (5Hz to 20MHz bandwidth)
All
⎯
70
⎯
mVrms
Peak-to-Peak (5Hz to 20MHz bandwidth)
All
⎯
mVpk-pk
Output Ripple and Noise on nominal output
(VIN=VIN, nom and IO=IO, min to IO, max)
⎯
200
External Capacitance
All
CO, max
0
⎯
Output Current
All
Io
0
Output Current Limit Inception
All
IO, lim
⎯
Efficiency
VIN=VIN, nom, TA=25°C
IO=IO, max , VO= VO,set
All
η
Switching Frequency (input ripple is ½ fsw)
10,000
μF
33
Adc
40
⎯
Adc
⎯
94
⎯
%
fsw
⎯
300
⎯
kHz
Vpk
ts
⎯
__
300
700
⎯
__
mVpk
μs
Vpk
ts
__
__
300
700
__
mVpk
μs
Unit
Dynamic Load Response
(dIo/dt=1A/10μs; Vin=Vin,nom; TA=25°C; Tested
with a 10 μF aluminum and a 1.0 μF tantalum
capacitor across the load.)
Load Change from Io= 50% to 75% of Io,max:
Peak Deviation
Settling Time (Vo<10% peak deviation)
All
Load Change from Io= 75% to 50% of Io,max:
Peak Deviation
Settling Time (Vo<10% peak deviation)
Isolation Specifications
Parameter
Symbol
Min
Typ
Max
Isolation Capacitance
Ciso
⎯
1000
⎯
pF
Isolation Resistance
Riso
10
⎯
⎯
MΩ
Device
Min
Typ
Max
Unit
General Specifications
Parameter
Calculated Reliability Based upon Telcordia SR332 Issue 2: Method I, Case 1, (IO=80%IO, max,
TA=40°C, Airflow = 200 lfm), 90% confidence
MTBF
All
2,459,214
Hours
FIT
All
406.6
10 /Hours
9
Weight – Open Frame
⎯
49 (1.73)
⎯
g (oz.)
Weight – with Baseplate option
⎯
64 (2.24)
⎯
g (oz.)
LINEAGE POWER
3
Data Sheet
February 2, 2009
QSK033A0B Series Power Modules; DC-DC Converters
36 – 60 Vdc Input; 12Vdc Output; 33A Output Current
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
Remote On/Off Signal Interface
(VIN=VIN, min to VIN, max , Signal referenced to VINterminal)
Negative Logic: device code suffix “1”
Logic Low = module On, Logic High = module
Off
Positive Logic: No device code suffix required
Logic Low = module Off, Logic High = module
On
Logic Low Specification
On/Off Thresholds:
Remote On/Off Current – Logic Low
All
Ion/off
5
10
15
μA
Logic Low Voltage
All
Von/off
-0.3
⎯
0.8
Vdc
Logic High Voltage – (Typ = Open Collector)
All
Von/off
2.0
⎯
3.5
Vdc
Logic High maximum allowable leakage
current
(Von/off = 2.0V)
All
Ion/off
⎯
⎯
4.0
μA
Maximum voltage allowed on On/Off pin
All
Von/off
⎯
⎯
13.5
Vdc
Tdelay,
All
⎯
20
⎯
ms
Enable with Vin
on/off
⎯
5
⎯
ms
Trise
29
40
68
ms
13
⎯
15
Vdc
⎯
125
⎯
°C
Turn-on Threshold
⎯
35
36
Vdc
Turn-off Threshold
32
34
⎯
Vdc
Turn-On Delay and Rise Times
(IO=IO, max)
Tdelay = Time until VO = 10% of VO,set from either
application of Vin with Remote On/Off set to On
or operation of Remote On/Off from Off to On
with Vin already applied for at least one second.
Tdelay,
Enable with
Trise = Time for VO to rise from 10% of VO,set to
90% of VO,set.
(Min @ VIN,MAX, Typ@ VIN,NOM, Max @ VIN,MIN)
All
Output Overvoltage Protection (Clamp)
All
Overtemperature Protection
All
Tref
(See Feature Descriptions)
Input Undervoltage Lockout
Input Overvoltage Lockout
4
Turn-off Threshold
⎯
65
67
Vdc
Turn-on Threshold
62
63
⎯
Vdc
LINEAGE POWER
Data Sheet
February 2, 2009
QSK033A0B Series Power Modules; DC-DC Converters
36 – 60 Vdc Input; 12Vdc Output; 33A Output Current
Characteristic Curves
8
Iout=16.5A
6
4
Iout=0A
2
0
30
33
36
39
42
45
48
51
54
57
60
On/Off VOLTAGE
Iout=33A
10
VON/OFF (V) (2V/div)
INPUT CURRENT, Ii (A)
12
VO (V) (5V/div)
14
OUTPUT VOLTAGE
The following figures provide typical characteristics for the QSK033A0B (12V, 33A) at 25ºC. The figures are identical
for either positive or negative Remote On/Off logic.
INPUT VOLTAGE, VO (V)
TIME, t (10 ms/div)
Vin=60V
Vin=48V
Vin=36V
80
75
0
5
10
15
20
25
30
35
OUTPUT CURRENT, IO (A)
48 Vin
60 Vin
TIME, t (1μs/div)
Figure 3. Typical Output Ripple and Noise at Room
Temperature and Io = Io,max.
LINEAGE POWER
TIME, t (500 μs/div)
Figure 5. Typical Transient Response to Step change
in Load from 25% to 50% to 25% of Full Load at Room
Temperature and 48 Vdc Input.
36 Vin
VO (V) (100mV/div)
OUTPUT VOLTAGE,
Figure 2. Typical Converter Efficiency Vs. Output
current at Room Temperature.
VO (V) (200mV/div)
85
IO (A) (10A/div)
90
OUTPUT CURRENT OUTPUT VOLTAGE
EFFCIENCY, η (%)
95
IO (A) (5A/div)
100
VO (V) (200mV/div)
Figure 4. Typical Start-Up Using Remote On/Off,
negative logic version shown.
OUTPUT CURRENT OUTPUT VOLTAGE
Figure 1. Typical Input Characteristic at Room
Temperature.
TIME, t (500 μs/div)
Figure 6. Typical Transient Response to Step Change
in Load from 50% to 75% to 50% of Full Load at Room
Temperature and 48 Vdc Input.
5
Data Sheet
February 2, 2009
QSK033A0B Series Power Modules; DC-DC Converters
36 – 60 Vdc Input; 12Vdc Output; 33A Output Current
Characteristic Curves (continued)
OUTPUT VOLTAGE, VO (V)
.
12.25
12.20
12.15
12.10
12.05
12.00
11.95
11.90
11.85
11.80
11.75
11.70
Iout=0A
Iout=16.5A
Iout=33A
36
39
42
45
48
51
INPUT VOLTAGE, Vin (V)
54
57
60
Figure 7. Typical Output voltage regulation vs. Input
voltage at Room Temperature.
12.20
OUTPUT VOLTAGE, VO (V)
12.15
Vin=36V
12.10
Vin=48V
12.05
12.00
Vin=60V
11.95
11.90
11.85
11.80
11.75
11.70
0
5
10
15
20
25
30
35
OUTPUT CURRENT, IO (A)
Figure 8. Typical Output voltage regulation vs. Output
current at Room Temperature.
6
LINEAGE POWER
Data Sheet
February 2, 2009
QSK033A0B Series Power Modules; DC-DC Converters
36 – 60 Vdc Input; 12Vdc Output; 33A Output Current
Test Configurations
Design Considerations
Input Source Impedance
The power module should be connected to a low
ac-impedance source. A highly inductive source
impedance can affect the stability of the power module.
For the test configuration in Figure 9, a 330μF
electrolytic capacitor, Cin, (ESR<0.7Ω at 100kHz),
mounted close to the power module helps ensure the
stability of the unit. Consult the factory for further
application guidelines.
Safety Considerations
Note: Measure input reflected-ripple current with a simulated
source inductance (LTEST) of 12 µH. Capacitor CS offsets
possible battery impedance. Measure current as shown above.
Figure 9. Input Reflected Ripple Current Test Setup.
Note: Use a 1.0 µF ceramic capacitor and a 10 µF aluminum or
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., UL60950-1, CSA C22.2 No. 60950-1, and VDE
EN60950-1.
If the input source is non-SELV (ELV or a hazardous
voltage greater than 60 Vdc and less than or equal to
75Vdc), for the module’s output to be considered as
meeting the requirements for safety extra-low voltage
(SELV), all of the following must be true:
ƒ
The input source is to be provided with reinforced
insulation from any other hazardous voltages,
including the ac mains.
ƒ
One VIN pin and one VOUT pin are to be grounded, or
both the input and output pins are to be kept
floating.
ƒ
The input pins of the module are not operator
accessible.
ƒ
Another SELV reliability test is conducted on the
whole system (combination of supply source and
subject module), as required by the safety agencies,
to verify that under a single fault, hazardous
voltages do not appear at the module’s output.
tantalum capacitor. Scope measurement should be made
using a BNC socket. Position the load between
51 mm and 76 mm (2 in. and 3 in.) from the module.
Figure 10. Output Ripple and Noise Test Setup.
CONTACT AND
DISTRIBUTION LOSSES
VI(+)
VO1
IO
II
LOAD
SUPPLY
VI(–)
VO2
CONTACT
RESISTANCE
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 pins and ground.
The power module has safety extra-low voltage (SELV)
outputs when all inputs are SELV.
The input to these units is to be provided with a
maximum 30 A fast-acting (or time-delay) fuse in the
unearthed lead.
Note: All measurements are taken at the module terminals.
When socketing, place Kelvin connections at module terminals
to avoid measurement errors due to socket contact resistance.
Figure 11. Output Voltage and Efficiency Test Setup.
LINEAGE POWER
7
Data Sheet
February 2, 2009
QSK033A0B Series Power Modules; DC-DC Converters
36 – 60 Vdc Input; 12Vdc Output; 33A Output Current
Feature Descriptions
Output Overvoltage Clamp
Overcurrent Protection
The output overvoltage clamp consists of a control
circuit, independent of the primary regulation loop, that
monitors the voltage on the output terminals and clamps
the voltage when it exceeds the overvoltage set point.
The control loop of the clamp has a higher voltage set
point than the primary loop. This provides a redundant
voltage control that reduces the risk of output
overvoltage.
To provide protection in a fault output overload condition,
the module is equipped with internal current-limiting
circuitry and can endure current limiting for a few miliseconds. If the overcurrent condition persists beyond a
few milliseconds, the module will shut down and remain
latched off. The overcurrent latch is reset by either
cycling the input power or by toggling the on/off pin for
one second. If the output overload condition still exists
when the module restarts, it will shut down again. This
operation will continue indefinitely until the overcurrent
condition is corrected.
An auto-restart option is also available. An auto-restart
feature continually attempts to restore the operation until
fault condition is cleared.
Overtemperature Protection
These modules feature an overtemperature protection
circuit to safeguard against thermal damage. The circuit
shuts down and latches off the module when the
maximum device reference temperature is exceeded.
The module can be restarted by cycling the dc input
power for at least one second or by toggling the remote
on/off signal for at least one second.
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 ON/OFF pin, and off during a logic low.
Negative logic remote on/off turns the module off during
a logic high and on during a logic low. Negative logic,
device code suffix "1," is the factory-preferred
configuration. The on/off circuit is powered from an
internal bias supply. 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 can be an open collector or
equivalent (see Figure 12). A logic low is Von/off = -0.3V
to 0.8V. The typical Ion/off during a logic low is 10 µA.
The switch should maintain a logic-low voltage while
sinking 10µA. During a logic high, the maximum Von/off
generated by the power module is 3.5V. The maximum
allowable leakage current of the switch at Von/off = 2.0V
is 4µA. If using an external voltage source, the maximum
voltage V on/off on the pin is 13.5V with respect to the
Vi (-) terminal.
If not using the remote on/off feature, perform one of the
following to turn the unit on:
For negative logic, short ON/OFF pin to VI(-).
For positive logic: leave ON/OFF pin open.
Ion/off
+
Input Under/Over voltage Lockout
At input voltages above or below the input under/over
voltage lockout limits, module operation is disabled. The
module will begin to operate when the input voltage level
changes to within the under and overvoltage lockout
limits.
Active Load Sharing (Parallel Operation with
–P option)
For additional power requirements, the power module
can be configured for parallel operation with active load
sharing. Good layout techniques should be observed
for noise immunity when using multiple units in parallel.
To implement active load sharing, the following
requirements should be followed:
•
The share pins of all units in parallel must be
connected together. The path of these connections
should be as direct as possible. Vin(-) is the return
for the active share signal for each module;
therefore, all modules in parallel must use the same
Vin source. The share signal trace should be placed
as close to the Vin(-) power plane as possible.
•
These modules contain circuitry to block reverse
current flow upon start-up, when output voltage is
present from other parallel modules, eliminating the
requirement for external output ORing devices.
However, output ORing devices should be used, if
fault tolerance is desired in parallel applications.
•
When using modules in parallel without output
ORing devices, the On/Off signal for one module
shall be 40mS ahead of the other modules, to allow
output voltage to be established, before the
remaining modules startup. If using output ORing
devices, the 40mS delay is not required.
•
When not using the parallel feature, leave the share
pin open.
ON/OFF
Von/off
–
VO(+)
LOAD
VI(+)
VO(–)
VI(–)
Figure 12. Remote On/Off Implementation.
8
The auto-restart option (4) is not available for modules
with the parallel, -P, option.
LINEAGE POWER
Data Sheet
February 2, 2009
QSK033A0B Series Power Modules; DC-DC Converters
36 – 60 Vdc Input; 12Vdc Output; 33A Output Current
Feature Descriptions (continued)
Thermal Considerations
The power modules operate in a variety of thermal
environments and sufficient cooling should be provided
to help ensure reliable operation.
Thermal 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.
Heat-dissipating components are mounted on the top
side of the module. Heat is removed by conduction,
convection and radiation to the surrounding environment.
Proper cooling can be verified by measuring the thermal
reference temperature (THx). Peak temperature (THx)
occurs at the position indicated in Figure 13 and Figure
14. For reliable operation this temperature should not
exceed the listed temperature threshold.
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 THx temperature of the power
modules is 110°C - 125°C, you can limit this temperature
to a lower value for extremely high reliability.
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
Increased airflow over the module enhances the heat
transfer via convection. The thermal derating figures
(15-17) show the maximum output current that can be
delivered by each module in the respective orientation
without exceeding the maximum TH temperature versus
local ambient temperature (TA) for air flows of Natural
Convection (NC), 1.0 m/s (200 ft./min), 1.5m/s (300
ft/min), 2.0 m/s (400 ft./min) and 3.0 m/s (600 ft./min).
The use of Figures 15 - 19 are shown in the following
example:
Example
What is the minimum airflow necessary for a
QSK033A0B operating at VI = 48 V, an output current of
17A, and a maximum ambient temperature of 70 °C in
transverse orientation.
Solution:
Given: VI = 48V, Io = 17A, TA = 70 °C
Determine required airflow (V) (Use Figure 15):
V = 1.0 m/sec. ( 200 ft./min.) or greater.
TH1 and TH2 shall not exceed 125°C.
Figure 13. Location of the thermal reference
temperature TH1 and TH2 for Open Frame module.
TH3 shall not exceed 110°C.
Figure 14. Location of the thermal reference
temperature TH3 for Baseplate module.
LINEAGE POWER
9
Data Sheet
February 2, 2009
QSK033A0B Series Power Modules; DC-DC Converters
36 – 60 Vdc Input; 12Vdc Output; 33A Output Current
Feature Descriptions (continued)
35
OUTPUT CURRENT, IO (A)
OUTPUT CURRENT, IO (A)
35
3.0 m/s
(600 LFM)
30
25
20
NC
15
1.0 m/s
(200 LFM)
1.5 m/s
(300 LFM)
10
2.0 m/s
(400 LFM)
5
0
20
30
40
50
60
70
80
20
NC
1.0 m/s
(200 LFM)
15
1.5 m/s
(300 LFM)
10
2.0 m/s
(400 LFM)
5
0
20
30
40
50
60
70
80
OUTPUT CURRENT, IO (A)
35
30
3.0 m/s
(600 LFM)
25
20
15
NC
1.0 m/s
(200 LFM)
10
1.5 m/s
(300 LFM)
5
2.0 m/s
(400 LFM)
0
20
30
40
50
60
70
80
90
LOCAL AMBIENT TEMPERATURE, TA (°C)
Figure 18. Output Current Derating for the
QSK033A0B-H in the Transverse Orientation with
baseplate and 0.5-inch high heatsink; Airflow
Direction from Vin(+) to Vin(–); Vin = 48V.
35
OUTPUT CURRENT, IO (A)
25
90
LOCAL AMBIENT TEMPERATURE, TA (°C)
Figure 15. Output Current Derating for the Open
Frame QSK033A0B in the Transverse Orientation;
Airflow Direction from Vin(+) to Vin(-); Vin = 48V.
3.0 m/s
(600 LFM)
30
90
LOCAL AMBIENT TEMPERATURE, TA (°C)
Figure 16. Output Current Derating for the
QSK033A0B-H in the Transverse Orientation with
baseplate; Airflow Direction from Vin(+) to Vin(–);
Vin = 48V.
3.0 m/s
(600 LFM)
30
25
20
NC
15
1.0 m/s
(200 LFM)
1.5 m/s
(300 LFM)
10
2.0 m/s
(400 LFM)
5
0
20
30
40
50
60
70
80
90
LOCAL AMBIENT TEMPERATURE, TA (°C)
Figure 19. Output Current Derating for the
QSK033A0B-H in the Transverse Orientation with
baseplate and 1.0-inch high heatsink; Airflow
Direction from Vin(+) to Vin(–); Vin = 48V.
OUTPUT CURRENT, IO (A)
35
3.0 m/s
(600 LFM)
30
25
20
NC
1.0 m/s
(200 LFM)
15
1.5 m/s
(300 LFM)
10
2.0 m/s
(400 LFM)
5
0
20
30
40
50
60
70
80
90
LOCAL AMBIENT TEMPERATURE, TA (°C)
Figure 17. Output Current Derating for the
QSK033A0B-H in the Transverse Orientation with
baseplate and 0.25-inch high heatsink; Airflow
Direction from Vin(+) to Vin(–); Vin = 48V.
10
LINEAGE POWER
Data Sheet
February 2, 2009
QSK033A0B Series Power Modules; DC-DC Converters
36 – 60 Vdc Input; 12Vdc Output; 33A Output Current
Layout Considerations
The QSK033 power module series are low profile in
order to be used in fine pitch system card architectures.
As such, component clearance between the bottom of
the power module and the mounting board is limited.
Avoid placing copper areas on the outer layer directly
underneath the power module. Also avoid placing via
interconnects underneath the power module.
For additional layout guide-lines, refer to FLTR100V10
Data Sheet.
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
LINEAGE POWER
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 representative for more
details.
Post Solder Cleaning and Drying
Considerations
Post solder cleaning is usually the final circuit-board
assembly process prior to electrical board testing. The
result of inadequate cleaning and drying can affect both
the reliability of a power module and the testability of the
finished circuit-board assembly. For guidance on
appropriate soldering, cleaning and drying procedures,
refer to Lineage Power Board
Mounted Power Modules: Soldering and Cleaning
Application Note (AP01-056EPS).
11
Data Sheet
February 2, 2009
QSK033A0B Series Power Modules; DC-DC Converters
36 – 60 Vdc Input; 12Vdc Output; 33A Output Current
Mechanical Outline for QSK033A0B Through-hole Module
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
BOTTOM
VIEW
*Top side label includes Lineage Power name, product designation, and data code.
** Standard pin tail length. Optional pin tail lengths shown in Table 2 Device Options.
†Option Feature, pin is not present unless one these options specified.
12
LINEAGE POWER
Data Sheet
February 2, 2009
QSK033A0B Series Power Modules; DC-DC Converters
36 – 60 Vdc Input; 12Vdc Output; 33A Output Current
Mechanical Outline for QSK –H (Baseplate version) Through-hole Module
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
BOTTOM
VIEW*
*Bottom side label includes Lineage Power name, product designation, and data code.
** Standard pin tail length. Optional pin tail lengths shown in Table 2 Device Options.
†Option Feature, pin is not present unless one of these options is specified.
LINEAGE POWER
13
Data Sheet
February 2, 2009
QSK033A0B Series Power Modules; DC-DC Converters
36 – 60 Vdc Input; 12Vdc Output; 33A Output Current
Recommended Pad Layout for Through-Hole Modules
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.)
3.6
(.14)
7.62
10.8
(.300) 3.81 (.43)
(.150)
11.43
(.450)
36.8
(1.45) 15.24
(.600)
50.80
(2.000)
VI(+)
Vo (+)
†PARALLEL
15.24
(.600)
ON/OFF
† CASE
Vo (-)
VI (-)
1.02 (.040) DIA PIN, 5 PLCS
1.57 (.062) DIA PIN, 2 PLCS
57.9
(2.28)
†Option Feature, pin is not present unless one of these options is specified.
14
LINEAGE POWER
Data Sheet
February 2, 2009
QSK033A0B Series Power Modules; DC-DC Converters
36 – 60 Vdc Input; 12Vdc Output; 33A Output Current
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
Efficiency
Connector
Type
Comcodes
QSK033A0B41
48V (36−60Vdc)
12V
33A
94%
Through hole
CC109148292
QSK033A0B41Z
48V (36−60Vdc)
12V
33A
94%
Through hole
CC109149233
QSK033A0B41-H
48V (36−60Vdc)
12V
33A
94%
Through hole
CC109148301
QSK033A0B41-HZ
48V (36−60Vdc)
12V
33A
94%
Through hole
CC109148318
QSK033A0B1-PHZ
48V (36−60Vdc)
12V
33A
94%
Through hole
CC109148045
QSK033A0B7541-HZ
48V (36−60Vdc)
12V
33A
94%
Through hole
CC109148326
QSK033A0B7641-H
48V (36−60Vdc)
12V
33A
94%
Through hole
CC109148334
QSK033A0B761-PHZ
48V (36−60Vdc)
12V
33A
94%
Through hole
CC109149225
Product codes
Table 2. Device Options
Option
Negative remote on/off logic
Suffix
1
Auto-restart (Note: Not available with –P option)
4
Pin length 6.35 ± 0.25mm (0.250 ± 0.010 in.)
5
Pin length 3.68 ± 0.25mm (0.145 ± 0.010 in.)
6
Case ground pin (offered with baseplate option only)
7
Pin length 2.79 ± 0.25mm (0.110 ± 0.010 in.)
8
Base Plate option
-H
Active load sharing (Parallel Operation)
-P
-Z
RoHS compliant modules
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: +49 898 780 672 80
India Headquarters
Tel: +91 80 28411633
Lineage Power reserves the right to m ake changes to t he product(s) or inf ormation 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 Pow er C orporation, (Mesquite, Texas) All I nternational Rights Res erved.
Document No: DS08-007 ver 1.0
PDF Name: QSK033A0B_ds.pdf