QW050B1 Lineage Power, QW050B1 Datasheet

no-image

QW050B1

Manufacturer Part Number
QW050B1
Description
Manufacturer
Lineage Power
Datasheet
Data Sheet
April 2008
Description
The QW050B1 and QW075B1 Power Modules are dc-dc converters that operate over an input voltage range of
36 Vdc to 75 Vdc and provide a precisely regulated dc output. The outputs are fully isolated from the inputs,
allowing versatile polarity configurations and grounding connections. The modules have maximum power rat-
ings from 50 W to 75 W at a typical full-load efficiency of 85%.
The sealed modules offer a metal baseplate for excellent thermal performance. Threaded-through holes are pro-
vided 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.
The QW Series Power Modules use advanced, surface-mount
technology and deliver high-quality, efficient, and compact
dc-dc conversion.
Applications
n
n
n
Options
n
n
n
Distributed power architectures
Computer equipment
Communications equipment
Heat sinks available for extended operation
Auto-restart after overcurrent shutdown
Case ground pin
QW050B1 and QW075B1 Power Modules; dc-dc Converters:
36 Vdc to 75 Vdc Input, 12 Vdc Output; 50 W to 75 W
Features
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
* ISO is a registered trademark of the International Organization
† UL is a registered trademark of Underwriters Laboratories, Inc.
‡ CSA is a registered trademark of Canadian Standards Associa-
§ VDE is a trademark of Verband Deutscher Elektrotechniker e.V.
** This product is intended for integration into end-use equipment.
for Standardization.
tion.
All the required procedures for CE marking of end-use equip-
ment should be followed. (The CE mark is placed on selected
products.)
Small size: 36.8 mm x 57.9 mm x 12.7 mm
High power density
High efficiency: 85% typical
Low output noise
Constant frequency
Industry-standard pinout
Metal baseplate
2:1 input voltage range
Overtemperature protection
Remote sense
Negative remote on/off
Adjustable output voltage
Overvoltage and overcurrent protection
Manufacturing facilities registered against the
ISO*9000 series standards
UL
Certified, and VDE
Licensed
CE mark meets 73/23/EEC and 93/68/EEC direc-
tives**
1950 Recognized, CSA
(1.45 in. x 2.28 in. x 0.50 in.)
§
0805 (EN60950, IEC950)
C22.2 No. 950-95

Related parts for QW050B1

QW050B1 Summary of contents

Page 1

... Description The QW050B1 and QW075B1 Power Modules are dc-dc converters that operate over an input voltage range of 36 Vdc to 75 Vdc and provide a precisely regulated dc output. The outputs are fully isolated from the inputs, allowing versatile polarity configurations and grounding connections. The modules have maximum power rat- ings from typical full-load efficiency of 85% ...

Page 2

... QW050B1 and QW075B1 Power Modules; dc-dc Converters: 36 Vdc to 75 Vdc Input, 12 Vdc Output Absolute Maximum Ratings Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso- lute 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 ...

Page 3

... Consult your sales representative or the factory. † These are manufacturing test limits. In some situations, results may differ. Table 3. Isolation Specifications Parameter Isolation Capacitance Isolation Resistance Lineage Power QW050B1 and QW075B1 Power Modules; dc-dc Converters: 36 Vdc to 75 Vdc Input, 12 Vdc Output (continued) Device Symbol All V ...

Page 4

... QW050B1 and QW075B1 Power Modules; dc-dc Converters: 36 Vdc to 75 Vdc Input, 12 Vdc Output General Specifications Parameter Calculated MTBF ( max Weight Feature Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See the Feature Descriptions section for additional information. ...

Page 5

... Figure 2. Typical QW075B1 Input Characteristics at Room Temperature Lineage Power QW050B1 and QW075B1 Power Modules; dc-dc Converters: 36 Vdc to 75 Vdc Input, 12 Vdc Output (V) I 1-0092 Figure 3. Typical QW050B1 Efficiency vs. Output ...

Page 6

... Room Temperature and Note: Tested with a 330 µF aluminum and a 1.0 µF ceramic capacitor across the load. Figure 7. Typical QW050B1 Transient Response to 1-0095 Step Decrease in Load from 50% to 25% of Full Load at Room Temperature and 48 Vdc Input (Waveform Averaged Eliminate Ripple Component.) ...

Page 7

... Step Increase in Load from 50% to 75% of Full Load at Room Temperature and 48 Vdc Input (Waveform Averaged to Eliminate Ripple Component.) Lineage Power QW050B1 and QW075B1 Power Modules; dc-dc Converters: 36 Vdc to 75 Vdc Input, 12 Vdc Output 8-3444 (F) Figure 11. QW075B1 Typical Start-Up from Remote 8-3445 (F) TIME ms/div) On/Off ...

Page 8

... QW050B1 and QW075B1 Power Modules; dc-dc Converters: 36 Vdc to 75 Vdc Input, 12 Vdc Output Test Configurations TO OSCILLOSCOPE L TEST 12 μH 220 μ ESR < 0.1 Ω °C, 100 kHz BATTERY ESR < 0.7 Ω Note: Measure input reflected-ripple current with a simulated source inductance ( µH. Capacitor C TEST tery impedance ...

Page 9

... V (–) I Figure 15. Remote On/Off Implementation Lineage Power QW050B1 and QW075B1 Power Modules; dc-dc Converters: 36 Vdc to 75 Vdc Input, 12 Vdc Output Remote Sense Remote sense minimizes the effects of distribution losses by regulating the voltage at the remote-sense connections. The voltage between the remote-sense ...

Page 10

... QW050B1 and QW075B1 Power Modules; dc-dc Converters: 36 Vdc to 75 Vdc Input, 12 Vdc Output Feature Descriptions (continued) 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 SENSE(+) or SENSE(– ...

Page 11

... The use of Figure 22 is shown in the following example. Lineage Power QW050B1 and QW075B1 Power Modules; dc-dc Converters: 36 Vdc to 75 Vdc Input, 12 Vdc Output Example What is the minimum airflow necessary for a QW050B1 operating at V maximum ambient temperature of 40 °C? Solution Given ...

Page 12

... QW050B1 and QW075B1 Power Modules; dc-dc Converters: 36 Vdc to 75 Vdc Input, 12 Vdc Output Thermal Considerations Heat Transfer Without Heat Sinks LOCAL AMBIENT TEMPERATURE, T Figure 22. Forced Convection Power Derating with No Heat Sink; Either Orientation Heat Transfer with Heat Sinks The power modules have through-threaded ...

Page 13

... LOCAL AMBIENT TEMPERATURE, T Figure 26. Heat Sink Power Derating Curves; Natural Convection; Longitudinal Orientation Lineage Power QW050B1 and QW075B1 Power Modules; dc-dc Converters: 36 Vdc to 75 Vdc Input, 12 Vdc Output (continued (continued IN. HEAT SINK 10 1/2 IN. HEAT SINK 1/4 IN ...

Page 14

... QW050B1 and QW075B1 Power Modules; dc-dc Converters: 36 Vdc to 75 Vdc Input, 12 Vdc Output Thermal Considerations Heat Transfer with Heat Sinks 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 ...

Page 15

... Side label includes Lineage name, product designation, safety agency markings, input/output voltage and current ratings, and bar code. Lineage Power QW050B1 and QW075B1 Power Modules; dc-dc Converters: 36 Vdc to 75 Vdc Input, 12 Vdc Output 36.8 (1.45) 57.9 (2.28) 12.7 (0.50) 0.51 (0 ...

Page 16

... Vdc Optional features can be ordered using the suffixes shown in Table 5. To order more than one option, list device codes suffixes in numerically descending order. For example, the device code for a QW050B1 module with the fol- lowing option is shown below: Auto-restart after overcurrent shutdown Table 5 ...

Page 17

... Dimensions are in millimeters and (inches). 57.91 ± 0.38 (2.280 ± 0.015) 26.16 ± 0.13 (1.030 ± 0.005) Figure 30. Longitudinal Heat Sink Lineage Power QW050B1 and QW075B1 Power Modules; dc-dc Converters: 36 Vdc to 75 Vdc Input, 12 Vdc Output 36.83 ± 0.38 1/4 IN. (1.450 ± 0.015) 1/2 IN. 1 IN. (1.850 ± 0.005) ...

Page 18

... QW050B1 and QW075B1 Power Modules; dc-dc Converters: 36 Vdc to 75 Vdc Input, 12 Vdc Output Notes 18 18 Data Sheet April 2008 Lineage Power ...

Page 19

... Data Sheet April 2008 Notes Lineage Power QW050B1 and QW075B1 Power Modules; dc-dc Converters: 36 Vdc to 75 Vdc Input, 12 Vdc Output ...

Page 20

... Lineage Power reserves the right to make changes to the produc t(s) or information contained herein without notice. No liability is ass umed as a res ult of their use or applic ation. No rights under any patent acc ompany the sale of any oduct information. ...

Related keywords