1 push pull converter transformer designed to provide isolated power for rs-485, can, modbus transceiver and other communication interfaces patent pending sidecar construction iec 60950 and 61558 basic insulation compliant, 12mm creepage 4kvrms isolation, 600vrms rated usaf858f674f8100 germanyf49f7032f7806f0 singaporef65f6287f8998 shanghaif86f21f62787060 chinaf86f755f33966678 taiwanf886f3f4356768 electrical specifcations @ 25c - operating temperature -40c to +125c part number inductance (1-4) ( hf 3 5%) leakage inductance (1-4) with (5-8) shorted ( h fmax ) capacitance (1, 4) to (5, 8) (pf fmax ) dcr (1-4) ( fmax) dcr (5-8) ( fmax) max (1-4) (v- secfmax) turns ratio (1:4)f(8:5) isolated voltage (vrms ) ph9385.011nl 3200 6.0 36 1.10 1.00 109 1ctf:f1ct ph9385.045nl 3200 4.0 36 1.10 1.25 109 4ctf:f5ct ph9385.034nl 2600 3.0 36 1.00 1.50 98 3ctf:f4ct ph9385.012nl 2600 3.0 40 1.00 1.90 98 1ctf:f2ct ph9385.038nl 2600 3.0 40 1.00 2.20 98 3ctf:f8ct ph9385.013nl 2600 3.0 40 1.00 2.75 98 1ctf:f3ct ph9385.027nl 2600 3.0 40 1.00 3.00 98 2ctf:f7ct ph9385.015nl 1350 3.0 30 0.80 3.20 70 1ctf:5ct notes: 1.fpinsf1-4f(connectf2f&f3),fpinsf8-5f(connectf6f&f7) 1.fthefmaximumfvolt-usecfratingflimitsfthefpeakffuxfdensityftof3600fgaussfwhenfusedfin fffbi-polarfdrivefapplicationfwithf200khz.fforfunipolarfdrivefapplicationsforfafbi-polarfdrive fffwithf350khz,fafmaximumfvolt-usecfcouldfbef60%fofftheflistedfvalue.fforfpush-pullftop- fffology,fwherefthefvoltagefisfappliedfacrossfhalffthefprimaryfwindingfturns,fthefmaximumf fff volts-usefneedsftofbefderatedfbyf50%. 3 .foptionalftapef&freelfpackingfcanfbeforderedfbyfaddingfaf t fsufxftofthefpartff ffff numberf(i.e.fph9385.011nlfbecomesfph9385.011nl t ).fpulsefcompliesftofindustryf ffff standardftape ffandfreelfspecifcationfeia481. 4.f thefnlfsufxfindicatesfanfrohs-compliantfpartfnumber. 5.ftheftemperaturefoffthefcomponentf(ambientfplusftemperaturefrise)fmustfbe ffffwithinfthefstatedfoperatingftemperaturefrange.f ph9385.0xxnl mechanical schematic 2 4 7 pin 1 id 6 6 7 23 14 85 .600 [15.25] 6x.148 [3.75] .006[0.15] min .630 ma x [16 ma x] .591.012 [15.000.30] (.030) [0.75] 6x.148.010 [3.750.25] .295 ma x [7.5 ma x] 8 surfa ces .005[0.13] .079 [2.00] .079 [2.00] .669 ma x [17 ma x] ph9385.0xxnl da te c ode origin p at. pend . weight .............................2.5/gramsf tape & reel ........................300/reel tray ......................................80/tray dimensions: unlessfotherwisefspecifed,f allftolerancesfaref inches mm .010 0,25 4000 2 1 4 6 8 5 3 7 p766.d (02/16) pulseelectronics.com isolation power transformers toroid platform smd
2 application ph9385nl 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 2.5w) from a low voltage source. a typical implementation would be an isolated rs-485 power supply driver circuit, the design is compatible with the maxim? max253 ic. other ics include texas sn6501 ucc2808, analog adum4070, adum447x. 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 range can be extended by implementing diferent topologies such as forward or bridge and can be used with controllers ofered by diferent ic vendors for a number of diferent applications. for more information pulse worldwide headquarters 12220fworldftradefdrive sanfdiego,fcaf92128 u.s.a. tel:f858f674f8100 fax:f858f674f8262 pulse europe einsteinstrassef1 d-71083fherrenberg germany tel:f49f7032f7806f0 fax:f49f7032f7806f135 pulse china headquarters b402,fshenzhenfacademyfof aerospaceftechnologyfbldg. 10thfkejinanfroad high-techfzone nanshanfdistrict shenzhen,fprfchinaf518057 tel:f86f755f33966678f fax:f86f755f33966700 pulse north china roomf2704/2705 superfoceanffinancefctr. 2067fyanfanfroadfwest 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,f2016.fpulsefelectronics,finc.fallfrightsfreserved. v v ph9385 d2 d1 gnd cc out v in driver ic pulseelectronics.com isolation power transformers toroid platform smd p766.d (02/16)
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