LW020F

LW020F Datasheet

LW020 Single-Output-Series Power Modules 36 Vdc to 75 Vdc Inputs 20 W

Part	Datasheet
LW020F	LW020F (pdf)

Related Parts	Information
LW020A7	LW020A7
LW020A8	LW020A8
LW020B871	LW020B871
LW020F87	LW020F87
LW020A71	LW020A71
LW020F1	LW020F1
LW020A	LW020A
LW020F871	LW020F871
LW020A1	LW020A1

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Data Sheet April 2008 LW020 Single-Output-Series Power Modules 36 Vdc to 75 Vdc Inputs 20 W The LW020 Single-Output-Series Power Modules use advanced, surface-mount technology and deliver high-quality, compact, dc-dc conversion at an economical price. n Distributed power architectures n Communication equipment n Computer equipment Options n Choice of remote on/off configuration n Case ground pin n Synchronization n Short pins mm ± mm in. ± in. n Short pins mm ± mm in. ± in. n Low profile mm in. with mm in. standoffs, mm in. with standoffs recessed n Wide input voltage range 36 Vdc to 75 Vdc n Overcurrent protection n Output overvoltage protection n Input-to-output isolation 1500 Vdc n Operating case temperature range °C to +110 °C n Remote on/off n Output voltage adjustment 90% to 110% of VO, nom n JQA Certified to EN60950 n UL* 1950 Recognized, CSA† C22.2 No. 950-95 Certified, 0805 EN60950, IEC950 Licensed n CE mark meets 73/23/EEC and 93/68/EEC directives§ n Within FCC Class A radiated limits The LW020 Single-Output-Series Power Modules are low-profile dc-dc converters that operate over an input voltage range of 36 Vdc to 75 Vdc and provide precisely regulated outputs. The outputs are 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. The modules have a maximum power rating of 20 W at a typical full-load efficiency of up to * 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. LW020 Single-Output-Series Power Modules 36 Vdc to 75 Vdc Inputs 20 W Data Sheet April 2008 Absolute Maximum Ratings Stresses in excess of the absolute maximum ratings can cause permanent damage to the devices. These are absolute stress ratings only. Functional operation of the devices 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 Input Voltage Continuous Transient 100 ms Operating Case Temperature See Thermal Considerations section. Storage Temperature I/O Isolation Voltage VI, trans Tstg * Maximum case temperature varies based on power dissipation. See derating curve, Figure 16, for details. 80 100 110* 120 1500 Unit Vdc V °C °C Vdc power of the module should not exceed the rated power for the module as listed in the Ordering Information table. The unit is capable of external synchronization from an independent time base with a switching rate of 256 kHz. The amplitude of the synchronizing pulse train is TTL compatible and the duty cycle ranges between 40% and Synchronization is referenced to VI + . Thermal Considerations Introduction The LW020 Single-Output-Series power module operates in a variety of thermal environments however, sufficient cooling should be provided to help ensure reliable operation of the unit. Heat-dissipating components inside the unit are thermally coupled to the case. Heat is removed by conduction, convection, and radiation to the surrounding environment. Proper cooling can be verified by measuring the case temperature. Peak case temperature TC occurs at the position indicated in Figure Heat Transfer Increasing airflow over the module enhances the heat transfer via convection. Figure 16 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 600 ft./min. . Systems in which these power modules may be used typically generate natural convection airflow rates of 60 ft./min. due to other heat-dissipating components in the system. Therefore, the natural convection condition represents airflow rates of up to 60 ft./min. . Use of Figure 16 is shown in the following example. Example What is the minimum airflow necessary for a LW020A operating at VI = 48 V, an output current of A, and a maximum ambient temperature of 85 °C? Solution: Given VI = 48 V, IO = A, TA = 85 °C Determine PD Figure 18 PD = W Determine airflow Figure 16 v = 200 ft./min. 8-1265 C Note Dimensions are in millimeters and inches . Pin locations are for reference only. Figure Case Temperature Measurement Location Note that the view in Figure 15 is of the metal surface of the pin locations shown are for reference. The temperature at this location should not exceed the maximum case temperature indicated in the derating curve shown in Figure The output POWER DISSIPATION, PD W 7 MAX CASE TEMPERATURE 6 NATURAL CONVECTION ms-1 200 ft./min. ms-1 400 ft./min. ms-1 600 ft./min. 0 40 50 60 70 80 90 100 110 120 MAX AMBIENT TEMPERATURE, TA 8-1264 C .a Note Conversion factor for linear feet per minute to meters per second 200 ft./min. = 1 Figure Forced Convection Power Derating Either Orientation Lineage Power LW020 Single-Output-Series Power Modules 36 Vdc to 75 Vdc Inputs 20 W Data Sheet April 2008 Thermal Considerations continued Heat Transfer continued POWER DISSIPATION, PD W POWER DISSIPATION, PD W VI = 36 V VI = 48 V VI = 75 V OUTPUT CURRENT, IO A 8-1478 C .a Figure LW020F and G Power Dissipation vs. Output Current, TA = 25 °C POWER DISSIPATION, PD W Ordering Information Table Device Codes Input Voltage 48 V 48 V 48 V 48 V 48 V Output Voltage V 5V 12 V 15 V Output Power 10 W 20 W 20 W 20 W DRILL HOLE OF APPROX. DIAMETER TO RECESS STANDOFFS IF LOWER HEIGHT IS NEEDED 8-1198 C .g Device Code LW020G LW020F LW020A LW020B LW020C Comcode 108258195 107640807 107314304 107681033 107640799 Optional features may be ordered using the device code suffixes shown. To order more than one option, list suf- fixes in numerically descending order. Please contact your Lineage Power Account Manager or Field Application Engineer for pricing and availability. Table Device Options Option Short pins mm ± mm in. ± in. Case ground pin Short pins mm ± mm in. ± in. Synchronization Negative remote on/off logic Device Code Suffix 8 Lineage Power LW020 Single-Output-Series Power Modules 36 Vdc to 75 Vdc Inputs 20 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, Mesquite, 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 DS00-059EPS Replaces DS00-058EPS

PDF Datasheet Preview

Data Sheet April 2008

LW020 Single-Output-Series Power Modules 36 Vdc to 75 Vdc Inputs 20 W

The LW020 Single-Output-Series Power Modules use advanced, surface-mount technology and deliver high-quality, compact, dc-dc conversion at an economical price.
n Distributed power architectures n Communication equipment n Computer equipment

Options
n Choice of remote on/off configuration n Case ground pin n Synchronization n Short pins mm ± mm
in. ± in. n Short pins mm ± mm
in. ± in.
n Low profile mm in. with mm in. standoffs, mm in. with standoffs recessed
n Wide input voltage range 36 Vdc to 75 Vdc
n Overcurrent protection
n Output overvoltage protection
n Input-to-output isolation 1500 Vdc
n Operating case temperature range °C to +110 °C
n Remote on/off
n Output voltage adjustment 90% to 110% of VO, nom
n JQA Certified to EN60950
n UL* 1950 Recognized, CSA† C22.2 No. 950-95 Certified, 0805 EN60950, IEC950 Licensed
n CE mark meets 73/23/EEC and 93/68/EEC directives§
n Within FCC Class A radiated limits

The LW020 Single-Output-Series Power Modules are low-profile dc-dc converters that operate over an input voltage range of 36 Vdc to 75 Vdc and provide precisely regulated outputs. The outputs are 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. The modules have a maximum power rating of 20 W at a typical full-load efficiency of up to
* 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.

LW020 Single-Output-Series Power Modules 36 Vdc to 75 Vdc Inputs 20 W

Data Sheet April 2008

Absolute Maximum Ratings

Stresses in excess of the absolute maximum ratings can cause permanent damage to the devices. These are absolute stress ratings only. Functional operation of the devices 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

Input Voltage Continuous Transient 100 ms

Operating Case Temperature See Thermal Considerations section.

Storage Temperature

I/O Isolation Voltage

VI, trans

Tstg
* Maximum case temperature varies based on power dissipation. See derating curve, Figure 16, for details.
80 100 110*
120 1500

Unit

Vdc V °C
°C Vdc
power of the module should not exceed the rated power for the module as listed in the Ordering Information table.

The unit is capable of external synchronization from an independent time base with a switching rate of 256 kHz. The amplitude of the synchronizing pulse train is TTL compatible and the duty cycle ranges between 40% and Synchronization is referenced to VI + .

Thermal Considerations

Introduction

The LW020 Single-Output-Series power module operates in a variety of thermal environments however, sufficient cooling should be provided to help ensure reliable operation of the unit. Heat-dissipating components inside the unit are thermally coupled to the case. Heat is removed by conduction, convection, and radiation to the surrounding environment. Proper cooling can be verified by measuring the case temperature. Peak case temperature TC occurs at the position indicated in Figure

Heat Transfer

Increasing airflow over the module enhances the heat transfer via convection. Figure 16 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 600 ft./min. .

Systems in which these power modules may be used typically generate natural convection airflow rates of 60 ft./min. due to other heat-dissipating components in the system. Therefore, the natural convection condition represents airflow rates of up to 60 ft./min. . Use of Figure 16 is shown in the following example.

Example

What is the minimum airflow necessary for a LW020A operating at VI = 48 V, an output current of A, and a maximum ambient temperature of 85 °C?

Solution:

Given VI = 48 V, IO = A, TA = 85 °C Determine PD Figure 18 PD = W Determine airflow Figure 16 v =
200 ft./min.
8-1265 C

Note Dimensions are in millimeters and inches . Pin locations are for reference only.

Figure Case Temperature Measurement Location

Note that the view in Figure 15 is of the metal surface of the pin locations shown are for reference. The temperature at this location should not exceed the maximum case temperature indicated in the derating curve shown in Figure The output

POWER DISSIPATION, PD W
7 MAX CASE

TEMPERATURE 6

NATURAL

CONVECTION ms-1 200 ft./min.
ms-1 400 ft./min.
ms-1 600 ft./min.
0 40 50 60 70 80 90 100 110 120

MAX AMBIENT TEMPERATURE, TA
8-1264 C .a

Note Conversion factor for linear feet per minute to meters per second 200 ft./min. = 1

Figure Forced Convection Power Derating Either Orientation

Lineage Power

LW020 Single-Output-Series Power Modules 36 Vdc to 75 Vdc Inputs 20 W

Data Sheet April 2008

Thermal Considerations continued

Heat Transfer continued

POWER DISSIPATION, PD W

POWER DISSIPATION, PD W

VI = 36 V VI = 48 V VI = 75 V

OUTPUT CURRENT, IO A
8-1478 C .a

Figure LW020F and G Power Dissipation vs. Output Current, TA = 25 °C

POWER DISSIPATION, PD W
Ordering Information

Table Device Codes Input Voltage 48 V 48 V 48 V 48 V 48 V

Output Voltage V 5V 12 V 15 V

Output Power 10 W 20 W 20 W 20 W

DRILL HOLE OF APPROX. DIAMETER TO RECESS STANDOFFS IF LOWER HEIGHT IS NEEDED
8-1198 C .g

Device Code LW020G LW020F LW020A LW020B LW020C

Comcode 108258195 107640807 107314304 107681033 107640799

Optional features may be ordered using the device code suffixes shown. To order more than one option, list suf-
fixes in numerically descending order. Please contact your Lineage Power Account Manager or Field Application Engineer for pricing and availability.

Table Device Options

Option Short pins mm ± mm
in. ± in. Case ground pin

Short pins mm ± mm in. ± in. Synchronization

Negative remote on/off logic

Device Code Suffix 8

Lineage Power

LW020 Single-Output-Series Power Modules 36 Vdc to 75 Vdc Inputs 20 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, Mesquite, 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 DS00-059EPS Replaces DS00-058EPS

More datasheets: 2000976 | 2000974 | 2000975 | 2000965 | DCMMV8X8SN | CA3102R28-9PYF80 | MDM-25PH005B | LW020A7 | LW020A8 | LW020B871

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Datasheet ID: LW020F 645707