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| 166 planar transformers bct series automotive ev/hev isolated 3.3kw battery charger tra nsformer features design for high performance 3.3kw onboard batter y chargers cubic format for higher power density working frequency from 65 to 200khz reinforced 3kv isolation between primary and seco ndary primary to secondary creepage distance > 8mm high operating temperature range 40 to +125c ul94v0 and rohs material design compliant with aecq200 requirements no thermal aging effect weight : approx. 0.4kg application power stage after 400v pfc rectication automotive ev/hev ac/dc onboard battery chargers half or fullbrigde zvs or llc resonant topologi es industrial highpower smps code max output power (kw) dclink input voltage (vdc) output voltage (vdc) max output current (adc) switch. freq. (khz) topology turn ratio (pri:sec) magneti zing induct. max leakage induct. bct001 3.3 390410 250430 12 100 fullbridge zvs* 13:18 1mh min 2h bct002 3.3 360400 260410 13 65 fullbridge zvs* 17:21+21 1.7mh min 3h bct003 3.3 375430 275450 12 90200 halfbridge llc** 13:22 50h +/5% 2h (*) a 4 to 6h resonant inductor in series with t he transformer primary winding is recommended for s oft switching operation (**) resonant tank made of lr = 12.5h and cr = 120 nf in series notes (1) all test data are referenced to 25c ambient t emperature (2) the inductance values are measured at 100khz/1v ac (3) the isolation is 100% tested at 3kvac/50hz/2sec /3ma (4) the pri/sec creepage distance is guaranteed > 8 mm (5) the component must be properly cooled down by mounting onto a waterplate heatsink at +85c max (6) other winding arrangements available on demand electrical specications dimensions (mm) electrical diagram notes mounting onto coldplate heatsink by 4x m4 screws output by exible cables protected under sleeve connecting m4 or m5 terminals on demand centertap secondary side on demand customized case on demand
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