1 push pull converter transformer reinforced insulation for isolated power supply driver compatible with maxim? max253 to power rs-485/rs232 transceiver 8mm creepage, 4000v hi-pot ul and tuv certification ul class f insulation system compliant usaf858f674f8100 germanyf49f7032f7806f0 singaporef65f6287f8998 shanghaif86f21f62787060 chinaf86f755f33966678 taiwanf886f3f4356768 electrical specifcations @ 25c - operating temperature -40c to +125c part number inductance (1-3) ( hf 45%) dcr (1-3) ( fmax) max (1-3) (v- sec) turns ratio isolated voltage (vrms ) ph9185.011nl 750.0 0.50 66.0 1:1 4000.0 ph9185.012nl 450.0 0.40 52.0 1:2 ph9185.013nl 200.0 0.35 36.0 1:3 ph9185.021nl 880.0 0.56 74.0 2:1 ph9185.034nl 750.0 0.50 66.0 3:4 ph9185.038nl 310.0 0.35 44.0 3:8 ph9185.043nl 1260.0 0.70 89.0 4:3 ph9185.083nl 560.0 0.45 59.0 8:3 notes: 1.fthefmaximumfvolt-usecfratingflimitsfthefpeakffuxfdensityftof3600fgaussfwhenfusedfin fffbi-polarfdrivefapplicationfwithf200khz.fforfunipolarfdrivefapplicationsforfafbi-polarfdrive fffwithf350khz,fafmaximumfvolt-usecfcouldfbef60%fofftheflistedfvalue. 2.foptionalftapef&freelfpackingfcanfbeforderedfbyfaddingfaf t fsufxftofthefpartfnumber ffff(i.e.fph9185.012nlfbecomesfph9185.012nl t ).fpulsefcompliesftofindustryfstandardftape ffffandfreelfspecifcationfeia481. 3.f thefnlfsufxfindicatesfanfrohs-compliantfpartfnumber. 4.ftheftemperaturefoffthefcomponentf(ambientfplusftheftemperaturefrise)fmustfbef ffffwithinfthefstatedfoperatingftemperaturefrange. ph9185.xxxxnl mechanical schematic 1 4 2, 3 weight .............................2.6gramsf tape & reel ........................150/reel tray ......................................80/tray dimensions: unlessfotherwisefspecifed,f allftolerancesfaref inches mm .010 0,25 preliminary p708a (6/12) pulseelectronics.com switch mode transformers ep7 platform smd www.datasheet.net/ datasheet pdf - http://www..co.kr/
2 for more information pulse worldwide headquarters 12220fworldftradefdrive sanfdiego,fcaf 92128 u.s.a. tel:f858f674f8100 fax:f858f674f8262 pulse europe einsteinstrassef1 d-71083fherren - berg germany tel:f49f7032f78060 fax:f49f7032f7806f135 pulse china headquarters b402,fshenzhenfacademyfof aerospaceftechnol - ogyfbldg. 10thfkejinanfroad high-techfzone nanshanfdistrict shenzen,fprfchinaf 518057 tel:f86f755f33966678f fax:f86f755f33966700 pulse north china roomf2704/2705 superfoceanffinancef ctr. 2067fyanfanfroadf west shanghaif200336 china tel:f86f21f62787060f fax:f86f2162786973 pulse south asia 135fjoofsengfroad #03-02 pmfindustrialfbldg. singaporef368363 tel:f65f6287f8998ff fax:f65f6287f8998 pulse north asia 3f,fno.f198 zhongyuanfroad zhonglifcity taoyuanfcountyf320 taiwanfr.fo.fc. tel:f886f3f4356768 fax:f886f3f4356823f(pulse)ff fax:f886f3f4356820f(fre) performancefwarrantyfoffproductsfoferedfonfthisfdatafsheetfisflimitedftofthefparametersfspecifed.fdatafisfsubjectftofchangefwithoutfnotice.fotherfbrandfandfproductfnamesfmentionedfhereinfmayfbef trademarksforfregisteredftrademarksfofftheirfrespectivefowners.f?fcopyright,f2011.fpulsefelectronics,finc.fallfrightsfreserved. application ph9185nl is a series of high isolation power supply transformer drivers. intended to operate in a fxed duty cycle push pull topology, it is a part of a low cost solution for delivering lower power (up to 3w) from a low voltage source. a typical implementation would be an isolated rs-485/rs-232 power supply driver circuit, the design is compatible with the maxim? max253 ic. a schematic diagram for the push pull converter topology is given below. for a fxed 50% duty cycle mode of operation, the output voltage is simply determined by the input voltage and turns ratio. so, with the available turns ratios, a variety of output voltages can be selected. this transformer design has been certifed by ul to comply with u l60050-1 2 edition, and can/ csa c22.2 no. 60950-1-07 2 edition; and by tuv to comply with en61558-1 and en61558-2-16 with reinforced insulation for a working voltage up to 400v 8mm creepage and 4000vrms isolation voltage is guaranteed to meet this requirement. the design also complies with the pulses class f insulation system. maxim is a registered trademark of maxim integrated products. nd nd v v ph9185 d2 d1 gnd cc out v in driver ic pulseelectronics.com switching mode transformers ep7 platform smd preliminary p708.a (6/12) www.datasheet.net/ datasheet pdf - http://www..co.kr/
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