QHW050A1-Q

QHW050A1-Q Datasheet

QHW050A1-Q, QHW075A1-Q, and QHW100A1-Q Power Modules dc-dc Converters 36 to 75 Vdc Input, 5 Vdc Output 50 W to 100 W

Part	Datasheet
QHW050A1-Q	QHW050A1-Q (pdf)

Related Parts	Information
QHW100A1-Q	QHW100A1-Q
QHW075A1-Q	QHW075A1-Q

PDF Datasheet Preview
Data Sheet August 2006 QHW050A1-Q, QHW075A1-Q, and QHW100A1-Q Power Modules dc-dc Converters 36 to 75 Vdc Input, 5 Vdc Output 50 W to 100 W The QHW Series Power Modules use advanced, surfacemount technology and deliver high-quality, efficient, and compact dc-dc conversion. n Distributed power architectures n Communications equipment n Computer equipment Options n Heat sinks available for extended operation n Auto-restart after overtemperature, overvoltage, or overcurrent shutdown n Case ground pin n Short pins n Small size mm x mm x mm in. x in. x in. n High power density n Extra high efficiency typical n Low output noise n Constant frequency n Metal baseplate n 2:1 input voltage range n Overvoltage and overcurrent, overtemperature protection n Negative remote on/off n Remote sense n Adjustable output voltage n ISO* 9001 and ISO 14001 Certified manufacturing facilities n UL†60950 Recognized, C22.2 No. 60950-00 Certified, and VDE § 0805 EN60950 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 QHW050A1-Q, QHW075A1-Q, and QHW100A1-Q 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 100 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. QHW050A1-Q, QHW075A1-Q, and QHW100A1-Q Power Modules dc-dc Converters 36 to 75 Vdc Input, 5 Vdc Output 50 W to 100 W Data Sheet August 2006 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. Storage Temperature Tstg I/O Isolation Voltage for 1 minute 1500 Electrical Specifications 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. Heat Transfer Without Heat Sinks Increasing airflow over the module enhances the heat transfer via convection. Figures 25 and 26 show 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 3 m/s 600 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 QHW075A1-Q operating at VI = 48 V, an output current of 15 A, transverse orientation, and a maximum ambient temperature of 40 °C? Solution Given VI = 48 V IO = 15 A TA = 40 °C Determine PD Use Figure PD = W Determine airflow v Use Figure v = m/s 200 ft./min. Note Top view, pin locations are for reference only. Measurements shown in millimeters and inches . 8-2104 F Figure Case Temperature Measurement Location Tyco Electronics Corp. QHW050A1-Q, QHW075A1-Q, and QHW100A1-Q Power Modules dc-dc Converters 36 to 75 Vdc Input, 5 Vdc Output 50 W to 100 W Data Sheet August 2006 Thermal Considerations continued Heat Transfer Without Heat Sinks continued POWER DISSIPATION, PD W m/s 600 ft./min. m/s 400 ft./min. m/s 200 ft./min. m/s 20 ft./min. NATURAL CONVECTION 0 10 20 30 40 50 60 70 80 90 100 LOCAL AMBIENT TEMPERATURE, TA °C 8-2321 F .a Figure Forced Convection Power Derating with No Heat Sink Transverse Orientation POWER DISSIPATION, PD W m/s 600 ft./min. m/s 400 ft./min. m/s 200 ft./min. m/s 20 ft./min. NATURAL CONVECTION 0 10 20 30 40 50 60 70 80 90 100 LOCAL AMBIENT TEMPERATURE, TA °C 8-2318 F .c Figure Forced Convection Power Derating with No Heat Sink Longitudinal Orientation POWER DISSIPATION, PD W 9 8 7 6 5 4 3 2 1 0 VI = 75 V VI = 48 V VI = 36 V Ordering Information Please contact your Tyco Electronics Account Manager or Field Application Engineer for pricing and availability. Table Device Codes Input Voltage 48 Vdc 48 Vdc 48 Vdc Output Voltage 5 Vdc 5 Vdc 5 Vdc Output Power 50 W 75 W 100 W Output Current 10 A 15 A 20 A Remote On/Off Logic Negative Device Code QHW050A1-Q QHW075A1-Q QHW100A1-Q Comcode 108741588 108741604 108741562 Optional features can be ordered using the suffixes shown in Table To order more than one option, list device codes suffixes in numerically descending order. For example, the device code for a QHW075A1-Q module with the following option is shown below: Auto-restart after overtemperature, overvoltage, or overcurrent shutdown QHW075A41-Q Table Device Options Option Case ground pin Short pins mm ± mm in. ± in. Auto-restart after overtemperature, over- voltage, or overcurrent shutdown Device Code Suffix 7 6 Tyco Electronics Corp. QHW050A1-Q, QHW075A1-Q, and QHW100A1-Q Power Modules dc-dc Converters 36 to 75 Vdc Input, 5 Vdc Output 50 W to 100 W Data Sheet August 2006 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 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 World Wide Headquarters Tyco Electronics Power Systems, Inc. 3000 Skyline Drive, Mesquite, TX 75149, USA +1-800-526-7819 FAX +1-888-315-5182 Outside U.S.A. +1-972-284-2626, FAX +1-972-284-2900 e-mail: Europe, Middle-East and Africa Headquarters Tyco Electronics UK Ltd Tel +44 0 1344 469 300, Fax +44 0 1344 469 301 Central America-Latin America Headquarters Tyco Electronics Power Systems Tel +54 11 4316 2866, Fax +54 11 4312 9508 Asia-Pacific Headquarters Tyco Electronics Singapore Pte Ltd Tel +65 482 0311, Fax 65 480 9299 Tyco Electronics Corporation 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. 2001 Tyco Electronics Power Systems, Inc. Mesquite, Texas All International Rights Reserved. Printed in U.S.A. August 2006 FDS01-053EPS Replaces DS00-183EPS Printed on Recycled Paper

PDF Datasheet Preview

Data Sheet August 2006

QHW050A1-Q, QHW075A1-Q, and QHW100A1-Q Power Modules dc-dc Converters 36 to 75 Vdc Input, 5 Vdc Output 50 W to 100 W

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

Options
n Heat sinks available for extended operation n Auto-restart after overtemperature, overvoltage, or
overcurrent shutdown n Case ground pin n Short pins
n Small size mm x mm x mm in. x in. x in.
n High power density
n Extra high efficiency typical
n Low output noise
n Constant frequency
n Metal baseplate
n 2:1 input voltage range
n Overvoltage and overcurrent, overtemperature protection
n Negative remote on/off
n Remote sense
n Adjustable output voltage
n ISO* 9001 and ISO 14001 Certified manufacturing facilities
n UL†60950 Recognized, C22.2 No. 60950-00 Certified, and VDE § 0805 EN60950 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 QHW050A1-Q, QHW075A1-Q, and QHW100A1-Q 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 100 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.

QHW050A1-Q, QHW075A1-Q, and QHW100A1-Q Power Modules dc-dc Converters 36 to 75 Vdc Input, 5 Vdc Output 50 W to 100 W

Data Sheet August 2006

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.

Storage Temperature

Tstg

I/O Isolation Voltage for 1 minute
1500

Electrical Specifications
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.

Heat Transfer Without Heat Sinks

Increasing airflow over the module enhances the heat transfer via convection. Figures 25 and 26 show 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 3 m/s 600 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 QHW075A1-Q operating at VI = 48 V, an output current of 15 A, transverse orientation, and a maximum ambient temperature of 40 °C?

Solution

Given VI = 48 V IO = 15 A TA = 40 °C

Determine PD Use Figure PD = W

Determine airflow v Use Figure v = m/s 200 ft./min.

Note Top view, pin locations are for reference only. Measurements shown in millimeters and inches .
8-2104 F

Figure Case Temperature Measurement Location

Tyco Electronics Corp.

QHW050A1-Q, QHW075A1-Q, and QHW100A1-Q Power Modules dc-dc Converters 36 to 75 Vdc Input, 5 Vdc Output 50 W to 100 W

Data Sheet August 2006

Thermal Considerations continued Heat Transfer Without Heat Sinks continued

POWER DISSIPATION, PD W
m/s 600 ft./min.
m/s 400 ft./min.
m/s 200 ft./min.
m/s 20 ft./min.

NATURAL

CONVECTION
0 10 20 30 40 50 60 70 80 90 100 LOCAL AMBIENT TEMPERATURE, TA °C
8-2321 F .a

Figure Forced Convection Power Derating with No Heat Sink Transverse Orientation

POWER DISSIPATION, PD W
m/s 600 ft./min.
m/s 400 ft./min.
m/s 200 ft./min.
m/s 20 ft./min.

NATURAL

CONVECTION
0 10 20 30 40 50 60 70 80 90 100 LOCAL AMBIENT TEMPERATURE, TA °C
8-2318 F .c

Figure Forced Convection Power Derating with No Heat Sink Longitudinal Orientation

POWER DISSIPATION, PD W
9 8 7 6 5 4 3 2 1 0

VI = 75 V VI = 48 V VI = 36 V
Ordering Information

Please contact your Tyco Electronics Account Manager or Field Application Engineer for pricing and availability.

Table Device Codes

Input Voltage 48 Vdc 48 Vdc 48 Vdc

Output Voltage 5 Vdc 5 Vdc 5 Vdc

Output Power 50 W 75 W 100 W

Output Current
10 A 15 A 20 A

Remote On/Off Logic

Negative

Device Code QHW050A1-Q QHW075A1-Q QHW100A1-Q

Comcode
108741588 108741604 108741562

Optional features can be ordered using the suffixes shown in Table To order more than one option, list device codes suffixes in numerically descending order. For example, the device code for a QHW075A1-Q module with the following option is shown below:

Auto-restart after overtemperature, overvoltage, or overcurrent shutdown

QHW075A41-Q

Table Device Options

Option

Case ground pin Short pins mm ± mm
in. ± in. Auto-restart after overtemperature, over-
voltage, or overcurrent shutdown

Device Code Suffix 7 6

Tyco Electronics Corp.

QHW050A1-Q, QHW075A1-Q, and QHW100A1-Q Power Modules dc-dc Converters 36 to 75 Vdc Input, 5 Vdc Output 50 W to 100 W

Data Sheet August 2006
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
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

World Wide Headquarters Tyco Electronics Power Systems, Inc.
3000 Skyline Drive, Mesquite, TX 75149, USA +1-800-526-7819 FAX +1-888-315-5182 Outside U.S.A. +1-972-284-2626, FAX +1-972-284-2900 e-mail:

Europe, Middle-East and Africa Headquarters Tyco Electronics UK Ltd Tel +44 0 1344 469 300, Fax +44 0 1344 469 301

Central America-Latin America Headquarters Tyco Electronics Power Systems Tel +54 11 4316 2866, Fax +54 11 4312 9508

Asia-Pacific Headquarters Tyco Electronics Singapore Pte Ltd Tel +65 482 0311, Fax 65 480 9299

Tyco Electronics Corporation 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.
2001 Tyco Electronics Power Systems, Inc. Mesquite, Texas All International Rights Reserved. Printed in U.S.A.

August 2006 FDS01-053EPS Replaces DS00-183EPS

Printed on Recycled Paper

More datasheets: 67095-006LF | 67095-008LF | 67095-010LF | 67095-005LF | 67095-002LF | 67095-003LF | 67095-004LF | CA3102R20-15SF183 | QHW100A1-Q | QHW075A1-Q

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Datasheet ID: QHW050A1-Q 645723