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PDF QBVW033A0B Data sheet ( Hoja de datos )
| Número de pieza | QBVW033A0B | |
| Descripción | Power Modules; DC-DC Converters | |
| Fabricantes | Lineage Power | |
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Preliminary Data Sheet
January 21, 2011
QBVW033A0B Series Power Modules; DC-DC Converters
36-75Vdc Input; 12Vdc Output; 33A Output Current
BARRACUDA SERIES
RoHS
Compliant
Applications
Distributed power architectures
Intermediate bus voltage applications
Servers and storage applications
Networking equipment including Power over
Ethernet (PoE)
Fan assemblies and other systems requiring a
tightly regulated output voltage
Options
Negative Remote On/Off logic (1=option code,
factory preferred)
Auto-restart after fault shutdown (4=option code,
factory preferred)
Base plate option (-H=option code)
Passive Droop Load Sharing (-P=option code)
Features
Compliant to RoHS EU Directive 2002/95/EC (-Z
versions)
High and flat efficiency profile – >95.5% at 12Vdc,
30% load to 100% output
Wide Input voltage range: 36-75Vdc
Delivers up to 33Adc output current
Fully very tightly regulated output voltage
Low output ripple and noise
Industry standard, Quarter brick:
58.4 mm x 36.8 mm x 11.7 mm
(2.30 in x 1.45 in x 0.46 in)
Constant switching frequency
Positive Remote On/Off logic
Output over current/voltage protection
Over temperature protection
Wide operating temperature range (-40°C to 85°C)
UL* 60950-1 Recognized, CSA† C22.2 No. 60950-1-
03 Certified, and VDE‡ 0805:2001-12 (EN60950-1)
Licensed
CE mark to 2006/96/EC directive§
Meets the voltage and current requirements for ETSI
300-132-2 and complies with and licensed for Basic
insulation rating per EN60950-1
2250 Vdc Isolation tested in compliance with IEEE
802.3¤ PoE standards
ISO** 9001 and ISO14001 certified manufacturing
facilities
Description
The QBVW033A0B 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, as well as other application requiring a tightly regulated output voltage. The QBVW033A0B series
operate from an input voltage range of 36 to 75Vdc and provide up to 33A output current at output voltages of 12Vdc
in an industry standard quarter brick. The converter incorporates digital control, synchronous rectification technology,
a fully regulated control topology, and innovative packaging techniques to achieve efficiency exceeding 96% at 12V
output. This leads to lower power dissipations such that for many applications a heat sink is not required. Standard
features include on/off control, output overcurrent and over voltage protection, over temperature protection, input
under and over voltage lockout.
www.DataSheet4UTh.ceoomutput is fully isolated from the input, allowing versatile polarity configurations and grounding connections. Built-
in 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.
§ This product is intended for integration into end-user equipment . All of the required procedures of end-use equipment should be followed.
Document No: pds10-018 ver 0.5
PDF Name: QBVW033A0B_PDS.pdf
1 page  
Preliminary Data Sheet
January 21, 2011
QBVW033A0B Series Power Modules; DC-DC Converters
36-75Vdc Input; 12Vdc Output; 33A Output Current
Characteristic Curves, 12Vdc Output
The following figures provide typical characteristics for the QBVW033A0B (12V, 33A) at 25ºC. The figures are identical for
either positive or negative Remote On/Off logic.
INPUT VOLTAGE, VO (V)
Figure 1. Typical Input Characteristic at Room
Temperature.
TIME, t (5 ms/div)
Figure 4. Typical Start-Up Using Remote On/Off with
Vin applied, negative logic version shown.
OUTPUT CURRENT, IO (A)
Figure 2. Typical Converter Efficiency Vs. Output
current at Room Temperature and 48 Vdc Input.
TIME, t (500 μs/div)
Figure 5. Typical Transient Response to 0.1A/µs Step
Change in Load from 25% to 50% to 25% of Full Load
at Room Temperature, Co=470µF and 48 Vdc Input.
www.DataSheet4U.com
TIME, t (20 ms/div)
Figure 3. Typical Start-Up Using Vin with Remote
On/Off enabled, negative logic version shown.
LINEAGE POWER
TIME, t (500 μs/div)
Figure 6. Typical Transient Response to 0.1A/µs Step
Change in Load from 50% to 75% to 50% of Full Load
at Room Temperature, Co=470µF and 48 Vdc Input.
5
5 Page 
Preliminary Data Sheet
January 21, 2011
EMC Considerations
TBD
QBVW033A0B Series Power Modules; DC-DC Converters
36-75Vdc Input; 12Vdc Output; 33A Output Current
www.DataSheet4U.com
LINEAGE POWER
11
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