fl75 r10a filter module 75vdc input maximum, 10a maximum data sheet ds_fl75l20_ 0 3042014 features ? rohs compliant ? small size: 50.8mm x 40.6mm x 1 2.7 mm (2 .0 ? x 1. 6 ? x 0. 5 ? ) ? industry standard footprint and pin - out ? optimized for use with high frequency board mounted dc/dc converters ? printed - circuit board mountable ? iso 900 1 , tl 9000, iso 14001, qs 9000, ohsas 18001 certified manufacturing facility ? ul/cul 60950 (us & canada) recognized, vde 0805 (iec60950) licensed applications ? common - mode and differential - mode filtering of power supply dc input and output line ? computer application ? communications equipment delphi series filter module - fl75l20 75vdc max input, 20a max output current the delphi series fl75l20 filter module is the latest offering from a world leader in p ower systems technology and manufacturing -- delta electronics, inc. this filter module is designed to reduce the conducted common - mode and differential - mode noise on input or output lines of high - frequency switching power supplies and has a maximum curren t rating of 20a. it has the industry standard footprint and pin - out. with c reative design technology and optimization of component placement , delphi fl75 l20 filter module possesses outstanding electrical and thermal performance, as well as extremely high r eliability under highly stressful operating conditions.
2 specifications general specifications output specifications input voltage, continuous typical 0~75v output current ta=60 c , 2 m/s 20a input voltage, transient typical 100v output current ta= 70 c , 0 m/s 12 a operation c ase temperatur e typical - 40 ~ 110 common - mode insertion loss 50 circuit, 500 khz (typ) 28db storage temperature typical - 55 ~ 125 differential - mode insertion loss 50 circuit, 500 khz (typ) 46 db size (2 .0 ? . x 1.6 ? x 0. 5 ? ) 50.8 x 40.6 x 1 2.7 mm electrical character istics c urves figure 1: typical common - mode insertion loss in a 50 circuit figure 2: typical differential - mode insertion loss in a 50 circuit internal schematics figure 3: internal schematics
3 thermal consideratio ns thermal management is an important part of the system design. to ensure proper, reliable operation, sufficient cooling of t he power module is needed over the entire temperature range of the module. convection cooling is usually the dominant mode of heat transfer. hence, the choice of equipment to characterize the thermal performance of the power module is a wind tunnel. ther mal testing setup delta?s filter modules are characterized in heated vertical wind tunnels that simulate the thermal environments encountered in most electronics equipment. this type of equipment commonly uses vertically mounted circuit cards in cabinet r acks in which the power modules are mounted. the following figure shows the wind tunnel characterization setup. the filter module is mounted on a test pwb and is vertically positioned within the wind tunnel. the space between the neighboring pwb and the t op of the power module is 6.35mm (0.25?). thermal derating heat can be removed by increasing airflow over the module. figure 4 show s maximum output is a function of ambient temperature and airflow rate. to enhance system reliability, the power module sho uld always be operated below the maximum operating temperature. if the temperature exceeds the maximum module temperature, reliability of the unit may be affected. figure 4 : win d tunnel test setup figure dimensions are in millimeter s and (inches) . out gnd 16 mm (0.63 in) 27 mm (1.06 in) figure 5 : temperature measurement location the allowed maximum hot spot temperature is defined at 110 fl75l20 (standard) output current vs. ambient temperature and air velocity @ vin = 48v (either orientation) 0 5 10 15 20 25 25 35 45 55 65 75 85 ambient temperature ( ) output current(a) natural convection 100lfm 200lfm 300lfm 400lfm 500lfm 600lfm figure 6 : output current vs. ambient temperature and air velocity @ vin = 48v (either orientation)
4 application note: c2 through c5 can be 0.01 f to o.1 f. select the voltage rating to meet input - to - output isolation requirements. c1 should be the recommended value indicated in the power module data sheet. figure 7. recommended schematic when used as the input f ilter to a high - frequency dc -to - dc converter note: vdc input(+) and vdc input( - ) planes should overlay each other, as should the vi(+) and vi( - ) planes, as should the vout(+) and vout( - ) planes. avoid routing signals or pl anes under the power module or the filter module. ensure all connections are low impedance. figure 8. recommended layout when used as the input filter to a high - frequency dc -to - dc converter
5 application (continued) note: : c2 through c5 and c6 throug h c9 can be 0.01 f to o.1 f. select the voltage rating to meet input - to - output isolation requirements. c1 should be the recommended value indicated in the power module datasheet. figure 9. recommended schematic of filter module with two power modules
6 f igure 10 shows the experimental result obtained by using this filter module, together with the recommended external components shown in figures 5 and 6. the q48sr3r335nr module is one of the delphi series quarter brick 3.3v, 35a dcdc converters. measured n oise is greatly dependent on layout, grounding, cable orientation, and load characteristics and the variation is possible from various application conditions. figure 10 . q48sr3r335nr a conducted noise with fl75l20 input filter mechanical drawing top vi ew side view bottom view pin length l: a=5.0mm; b=3.1mm dimensions are in millimeter and (inches) . tolerances : x.xx 0.5 mm (0.02 in), x.xxx 0.25 mm (0.010 in) recommended hole patter n dimensions are in millimeter and (inches) . tolerances : x.xx 0.5 mm (0.02 in), x.xxx 0.25 mm (0.010 in)
7 part numbering system fl 75 l 20 a product family input voltage product s e ries output current space o ption c ode fl - emi filter 75- 0 ~ 75 v l ? industry standard 20 - 20a a ? pin len gth=5.0mm b ? pin len gth=3.1mm model list module name input voltage (max.) current rating ( max.) size (metric) size (english unit) fl75l05 a 75v 5a 25.4 x 25.4 x 10.2 mm 1.0 in. x 1.0 in. x 0.4 in. fl75l1 0 a 75v 10a 50.8 x 27.9 x 12.5 mm 2.0 in . x 1.1 in. x 0.5 in. fl75l20 a 75v 20a 50.8 x 40.6 x 12.7 mm 2.0 in. x 1.6 in. x 0.5 in. c o n tac t: www.deltaww.com/dcdc usa: telephone: east coast: 978- 656- 3993 west coast: 510 - 668 -5 100 fax: (978) 656 3964 email: dcdc@delta - corp.com europe: telephone: +31 -20 -655- 0967 fax: +31 -20- 655 - 0999 email: dcdc@delta - es. com asia & the rest of world : telephone: +886 3 4526107 e xt . 6220 ~6224 fax: +886 3 4513485 email: dcdc@delta.com.tw warranty delta offers a two ( 2) year limited warranty. complete warranty information is listed on our web site or is available upon request from delta. information furnished by delta is believed to be accurate and reliable. however, no responsibility is assumed by delta for it s use, nor for any infringements of patents or other rights of third parties, wh ich may result from its use. no license is granted by implication or otherwise under any patent or patent rights of delta. delta reserves the right to revise these specifications at any time, without noti ce.
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