QW050A1

QW050A1 Datasheet

QW050A1 and QW075A1 Power Modules dc-dc Converters 36 to 75 Vdc Input, 5 Vdc Output 50 W and 75 W

Part	Datasheet
QW050A1	QW050A1 (pdf)

Related Parts	Information
QW050A81	QW050A81

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Data Sheet April 2008 QW050A1 and QW075A1 Power Modules dc-dc Converters 36 to 75 Vdc Input, 5 Vdc Output 50 W and 75 W The QW Series Power Modules use advanced, surface-mount technology and deliver high-quality, efficient, and compact dc-dc conversion. n Distributed power architectures n Workstations n Computer equipment n Communications equipment Options n Heat sinks available for extended operation n Auto-restart after overcurrent shutdown n Small size mm x mm x mm in. x in. x in. n High power density n High efficiency 84% typical n Low output noise n Constant frequency n Industry-standard pinout n Metal baseplate n 2:1 input voltage range n Overvoltage and overcurrent protection n Remote on/off n Remote sense n Adjustable output voltage n Overtemperature protection n ISO* 9001 Certified manufacturing facilities n UL†1950 Recognized, C22.2 No. 950-95 Certified, and VDE § 0805 EN60950, IEC950 Licensed n CE 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 Associa- tion. § 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 equipment should be followed. The CE mark is placed on selected products. The QW050A1 and QW075A1 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 ratings from 50 W to 75 W at a typical full-load efficiency of The sealed modules offer a metal baseplate for excellent 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. QW050A1 and QW075A1 Power Modules dc-dc Converters 36 to 75 Vdc Input, 5 Vdc Output 50 W and 75 W Data Sheet April 2008 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 Unit Input Voltage Continuous Transient 100 ms VI, trans Operating Case Temperature See Thermal Considerations section see Figure Storage Temperature Tstg The temperature at this location should not exceed 100 °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 100 °C, you can limit this temperature to a lower value for extremely high reliability. Lineage Power QW050A1 and QW075A1 Power Modules dc-dc Converters 36 to 75 Vdc Input, 5 Vdc Output 50 W and 75 W Data Sheet April 2008 Thermal Considerations continued Heat Transfer Without Heat Sinks Increasing airflow over the module enhances the heat transfer via convection. Figure 25 shows the maximum power that can be dissipated by the module without exceeding the maximum case temperature versus local ambient temperature TA for natural convection through 4 m/s 800 ft./min. . Note that the natural convection condition was measured at m/s to m/s 10 ft./min. to 20 ft./min. however, systems in which these power modules may be used typically generate natural convection airflow rates of m/s 60 ft./min. due to other heat dissipating components in the system. The use of Figure 25 is shown in the following example. Example What is the minimum airflow necessary for a QW050A1 operating at VI = 54 V, an output current of 10 A, and a maximum ambient temperature of 40 °C? Solution Given VI = 54 V IO = 10 A TA = 40 °C Determine PD Use Figure PD = 10 W Determine airflow v Use Figure v = m/s 250 ft./min. Note Pending improvement will lower the power dissipation and reduce the airflow needed. POWER DISSIPATION, PD W VI = 75 V VI = 48 V VI = 36 V 4 SEE NOTE 3 1 2 3 4 5 6 7 8 9 10 OUTPUT CURRENT, IO A 8-2957 F Note Pending improvement will lower the power dissipation. Figure QW050A1 Power Dissipation vs. Output Current at 25 °C POWER DISSIPATION, PD W VI = 75 V VI = 54 V VI = 36 V SEE NOTE 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 OUTPUT CURRENT, IO A 8-2958 F Note Pending improvement will lower the power dissipation. Figure QW075A1 Power Dissipation vs. Output Current at 25 °C Lineage Power Data Sheet April 2008 QW050A1 and QW075A1 Power Modules dc-dc Converters 36 to 75 Vdc Input, 5 Vdc Output 50 W and 75 W Thermal Considerations continued Heat Transfer Without Heat Sinks continued m/s 800 ft./min. m/s 700 ft./min. Ordering Information Table Device Codes Input Voltage 48 V 48 V Output Voltage Output Power 50 W 75 W Remote On/Off Logic Negative Device Code QW050A1 QW075A1 Comcode 108153669 107967218 Optional features can be ordered using the suffixes shown in Table The suffixes follow the last letter of the device code and are placed in descending order. For example, the device codes for a QW050A1 module with the following options are shown below: Auto-restart after overcurrent shutdown QW050A41 Table Device Options Option Auto-restart after overcurrent shutdown Suffix 4 Lineage Power QW050A1 and QW075A1 Power Modules dc-dc Converters 36 to 75 Vdc Input, 5 Vdc Output 50 W and 75 W Ordering Information continued Table Device Accessories Accessory 1/4 in. transverse kit heat sink, thermal pad, and screws 1/4 in. longitudinal kit heat sink, thermal pad, and screws 1/2 in. transverse kit heat sink, thermal pad, and screws 1/2 in. longitudinal kit heat sink, thermal pad, and screws 1 in. transverse kit heat sink, thermal pad, and screws 1 in. longitudinal kit heat sink, thermal pad, and screws Dimensions are in millimeters and inches . Comcode 848060992 848061008 848061016 848061024 848061032 848061040 Data Sheet April 2008 1/4 IN. ± ± 1/2 IN. 1 IN. ± ± 8-2473 F Figure Longitudinal Heat Sink ± ± ± ± 1/4 IN. 1/2 IN. 1 IN. Figure Transverse Heat Sink 8-2472 F Lineage Power Data Sheet April 2008 Notes QW050A1 and QW075A1 Power Modules dc-dc Converters 36 to 75 Vdc Input, 5 Vdc Output 50 W and 75 W Lineage Power QW050A1 and QW075A1 Power Modules dc-dc Converters 36 to 75 Vdc Input, 5 Vdc Output 50 W and 75 W Data Sheet April 2008 A sia-Pacific Head qu art ers T el +65 6 41 6 4283 World W ide Headq u arters Lin eag e Po wer Co rp oratio n 30 00 Sk yline D riv e, Mes quite, T X 75149, U SA +1-800-526-7819 Outs id e U .S.A +1- 97 2-2 84 -2626 ag ep ower.co m e-m ail tech sup lin ea gep ower.co m Eu ro pe, M id dle-East an d Afric a He ad qu arters Tel +49 8 9 6089 286 Ind ia Head qu arters Tel +91 8 0 28411633 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 s uc h pr oduct s or information. 2008 Lineage Power Corpor ation, Mesquite, Texas All International Rights Res er ved. April 2008 DS00-179EPS Replaces DS00-178EPS

PDF Datasheet Preview

Data Sheet April 2008

QW050A1 and QW075A1 Power Modules dc-dc Converters 36 to 75 Vdc Input, 5 Vdc Output 50 W and 75 W

The QW Series Power Modules use advanced, surface-mount technology and deliver high-quality, efficient, and compact dc-dc conversion.
n Distributed power architectures n Workstations n Computer equipment n Communications equipment

Options
n Heat sinks available for extended operation n Auto-restart after overcurrent shutdown
n Small size mm x mm x mm in. x in. x in.
n High power density
n High efficiency 84% typical
n Low output noise
n Constant frequency
n Industry-standard pinout
n Metal baseplate
n 2:1 input voltage range
n Overvoltage and overcurrent protection
n Remote on/off
n Remote sense
n Adjustable output voltage
n Overtemperature protection
n ISO* 9001 Certified manufacturing facilities n UL†1950 Recognized, C22.2 No. 950-95

Certified, and VDE § 0805 EN60950, IEC950 Licensed
n CE 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 Associa-
tion. § 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 equipment should be followed. The CE mark is placed on selected products.

The QW050A1 and QW075A1 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 ratings from 50 W to 75 W at a typical full-load efficiency of

The sealed modules offer a metal baseplate for excellent 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.

QW050A1 and QW075A1 Power Modules dc-dc Converters 36 to 75 Vdc Input, 5 Vdc Output 50 W and 75 W

Data Sheet April 2008

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

Unit

Input Voltage Continuous Transient 100 ms

VI, trans

Operating Case Temperature

See Thermal Considerations section see

Figure

Storage Temperature

Tstg
The temperature at this location should not exceed 100 °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 100 °C, you can limit this temperature to a lower value for extremely high reliability.

Lineage Power

QW050A1 and QW075A1 Power Modules dc-dc Converters 36 to 75 Vdc Input, 5 Vdc Output 50 W and 75 W

Data Sheet April 2008

Thermal Considerations continued

Heat Transfer Without Heat Sinks

Increasing airflow over the module enhances the heat transfer via convection. Figure 25 shows the maximum power that can be dissipated by the module without exceeding the maximum case temperature versus local ambient temperature TA for natural convection through 4 m/s 800 ft./min. .

Note that the natural convection condition was measured at m/s to m/s 10 ft./min. to 20 ft./min. however, systems in which these power modules may be used typically generate natural convection airflow rates of m/s 60 ft./min. due to other heat dissipating components in the system. The use of Figure 25 is shown in the following example.

Example

What is the minimum airflow necessary for a QW050A1 operating at VI = 54 V, an output current of 10 A, and a maximum ambient temperature of 40 °C?

Solution

Given VI = 54 V IO = 10 A TA = 40 °C

Determine PD Use Figure PD = 10 W

Determine airflow v Use Figure v = m/s 250 ft./min.

Note Pending improvement will lower the power dissipation and reduce the airflow needed.

POWER DISSIPATION, PD W

VI = 75 V

VI = 48 V

VI = 36 V
4 SEE NOTE
3 1 2 3 4 5 6 7 8 9 10

OUTPUT CURRENT, IO A
8-2957 F

Note Pending improvement will lower the power dissipation.

Figure QW050A1 Power Dissipation vs. Output Current at 25 °C

POWER DISSIPATION, PD W

VI = 75 V

VI = 54 V VI = 36 V

SEE NOTE
4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

OUTPUT CURRENT, IO A
8-2958 F

Note Pending improvement will lower the power dissipation.

Figure QW075A1 Power Dissipation vs. Output Current at 25 °C

Lineage Power

Data Sheet April 2008

QW050A1 and QW075A1 Power Modules dc-dc Converters 36 to 75 Vdc Input, 5 Vdc Output 50 W and 75 W

Thermal Considerations continued Heat Transfer Without Heat Sinks continued
m/s 800 ft./min.
m/s 700 ft./min.
Ordering Information

Table Device Codes

Input Voltage
48 V 48 V

Output Voltage

Output Power 50 W 75 W

Remote On/Off Logic

Negative

Device Code QW050A1 QW075A1

Comcode
108153669 107967218

Optional features can be ordered using the suffixes shown in Table The suffixes follow the last letter of the device code and are placed in descending order. For example, the device codes for a QW050A1 module with the following options are shown below:

Auto-restart after overcurrent shutdown

QW050A41

Table Device Options

Option Auto-restart after overcurrent shutdown

Suffix 4

Lineage Power

QW050A1 and QW075A1 Power Modules dc-dc Converters 36 to 75 Vdc Input, 5 Vdc Output 50 W and 75 W
Ordering Information continued

Table Device Accessories Accessory
1/4 in. transverse kit heat sink, thermal pad, and screws 1/4 in. longitudinal kit heat sink, thermal pad, and screws 1/2 in. transverse kit heat sink, thermal pad, and screws 1/2 in. longitudinal kit heat sink, thermal pad, and screws
1 in. transverse kit heat sink, thermal pad, and screws 1 in. longitudinal kit heat sink, thermal pad, and screws

Dimensions are in millimeters and inches .

Comcode
848060992 848061008 848061016 848061024 848061032 848061040

Data Sheet April 2008
1/4 IN.
± ±
1/2 IN.
1 IN.
± ±
8-2473 F

Figure Longitudinal Heat Sink
± ±
± ±
1/4 IN. 1/2 IN. 1 IN.

Figure Transverse Heat Sink
8-2472 F

Lineage Power

Data Sheet April 2008

Notes

QW050A1 and QW075A1 Power Modules dc-dc Converters 36 to 75 Vdc Input, 5 Vdc Output 50 W and 75 W

Lineage Power

QW050A1 and QW075A1 Power Modules dc-dc Converters 36 to 75 Vdc Input, 5 Vdc Output 50 W and 75 W

Data Sheet April 2008

A sia-Pacific Head qu art ers T el +65 6 41 6 4283

World W ide Headq u arters Lin eag e Po wer Co rp oratio n 30 00 Sk yline D riv e, Mes quite, T X 75149, U SA +1-800-526-7819 Outs id e U .S.A +1- 97 2-2 84 -2626 ag ep ower.co m e-m ail tech sup lin ea gep ower.co m

Eu ro pe, M id dle-East an d Afric a He ad qu arters Tel +49 8 9 6089 286

Ind ia Head qu arters Tel +91 8 0 28411633

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 s uc h pr oduct s or information.
2008 Lineage Power Corpor ation, Mesquite, Texas All International Rights Res er ved.

April 2008 DS00-179EPS Replaces DS00-178EPS

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived QW050A1 Datasheet file may be downloaded here without warranties.

Datasheet ID: QW050A1 645734