LC020 Single-Output Series Power Module 18 Vdc to 36 Vdc Inputs 20 W
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Data Sheet April 2008 LC020 Single-Output Series Power Module 18 Vdc to 36 Vdc Inputs 20 W The LC020 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 Telecommunications n Data Networking n Wireless n Low profile mm in. with standoffs, mm in. with standoffs recessed n Wide input voltage range 18 Vdc to 36 Vdc n Input-to-output isolation 850 V n Operating ambient temperature range °C to +100 °C n Output overcurrent protection, unlimited duration n Remote on/off logic n Output voltage adjust 90% to 110% of VO, nom n UL* 60950 Recognized, CSA† C22.2 No. 60950-00 Certified, 0805 IEC60950 Licensed n Within FCC Class A radiated limits Options n Choice of remote on/off logic configuration n Case ground pin n Synchronization n Short pin mm ± mm in. ± in. The LC020 Single-Output Series Power Modules are low-profile, dc-dc converters that operate over an input voltage range of 18 Vdc to 36 Vdc and provide a precisely regulated V, 5 V, 12 V, or 15 V output. The output is isolated from the input, allowing versatile polarity configurations and grounding connections. The modules have a maximum power rating of 20 W at a typical full-load efficiency of up to The power module features remote on/off and output voltage adjustment of 90% to 110% of the nominal output voltage. 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. is a trademark of Verband Deutscher Elektrotechniker e.V. LC020 Single-Output Series Power Module 18 Vdc to 36 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 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 Input Voltage Continuous 100 ms Transient Operating Case Temperature See Thermal considerations section. Storage Temperature I/O Isolation Voltage VI, trans Tstg 40 50 100 120 850 Unit Vdc V °C °C Vdc Electrical Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. Table Input Specifications Parameter Symbol Min Unit Operating Input Voltage Maximum Input Current II, max VI = 0 V to VI, max IO = IO, max see Figures Inrush Transient Note that the view in Figure 20 is of the metal surface of the pin locations shown are for reference. 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. Heat Transfer Without Heat Sinks Increasing airflow over the module enhances the heat transfer via convection. Figure 21 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. . Note that the natural convection condition was measured at 10 ft./min. to 20 ft./min. however, 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. Use of Figure 21 is shown in the following example. Example What is the minimum airflow necessary for an LC020A operating at high line, an output current of A, and a maximum ambient temperature of 83 °C? Lineage Power LC020 Single-Output Series Power Module 18 Vdc to 36 Vdc Inputs 20 W Data Sheet April 2008 Thermal Considerations continued Heat Transfer Without Heat Sinks continued Solution Given VI = 36 V, IO = A, TA = 83 °C Determine PD Figure 23 PD = W Determine Airflow Figure 21 v = 200 ft./min. POWER DISSIPATION, PD W ms-1 600 ft./min. ms-1 400 ft./min. ms-1 200 ft./min. ms-1 100 ft./min. NATURAL CONVECTION 0 30 40 50 60 70 80 90 100 AMBIENT TEMPERATURE, T A 8-1264 Figure Forced Convection Power Derating with No Heat Sink Either Orientation POWER DISSIPATION, PD W 7 VIN = 18 V 5 VI = 36 V VI = 28 V 4 VI = 18 V OUTPUT CURRENT, IO A 8-1371 Figure LC020A Power Dissipation vs. Output Current, TA = 25 °C POWER DISSIPATION, PD W VI = 36 V VI = 27 V VI = 18 V OUTPUT CURRENT, IO A 1-0338 POWER DISSIPATION, PD W VI = 36 V VI = 27 V VI = 18 V OUTPUT CURRENT, IO A 1-0337 Ordering Information Input Voltage 28 V 28 V 28 V 28 V Output Voltage V 5V 12 V 15 V Output Power W 20 W 20 W 20 W Device Code LC020F LC020A LC020B LC020C Comcode 107681025 107640815 107681009 107681017 Optional features may be ordered using the device code suffixes shown. To order more than one option, list suffixes in numerically descending order. Please contact your Lineage Power Account Manager or Field Application Engineer for pricing and availability. Option Short pin mm ± mm in. ± in. Case ground pin Synchronization Negative logic on/off Device Code Suffix 8 7 3 1 Lineage Power LC020 Single-Output Series Power Module 18 Vdc to 36 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 Skyline D riv e, Mesquite, T X 75149, U SA +1-800-526-7819 Outsid 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 T el +49 8 9 6089 286 Ind ia Head qu arters T el +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 DS99-140EPS Replaces DS99-139EPS |
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