magnetic component specification specification number SGE2688-1 rev. a (080101) linfinity microelectronics, inc., 11861 western ave., garden grove, ca 92841 tel. (714) 898-8121 this document describes and specifies the electrical and mechanical characteristics of SGE2688-1 high voltage transformer for ccfl inverter power supply. this component should be designed and manufactured in accordance with engineering specification les2110t 1. electrical characteristics inductance ( at 10khz, 0.1v) d.c resistance items min nom max items min nom max l2-3, l3-4 (uh) 73.5 87 101 r2-3, r3-4(m ? ) 163 168 173 l6-7 (mh) 1030 1213 1396 rdc6-7( ? ) 362 371 380 inductance ( at 100khz, 1vrms) r2-3/r3-4 0.96 1 1.04 l lkg2-4 ,l lkg4-6 (uh) 4.7 5.1 5.5 should be shorted pin 6-7 balance of primary dc resistance will be used as bifilar winding measure tool secondary self capacitance c4-5 (pf) 2.0 2.5 3.0 hp4280a 1mhz c meter, floating mode dielectric voltage withstand secondary to core 2000vrms min. ( 1min. 60hz) primary to core 1000vrms min. primary to secondary 60 hz.,arc-detect enabled, 5 sec. min., 200ua max. leakage current 1000vrms min. operating test v6-7 primary driven with 80 khz. sine wave source (pin 2-4), secondary measured with tektronix p6015 (or equiv.).. 1500vrms min. 2. winding specifications primary secondary pin 2 ? 3 pin 3-4 pin 6-7 winding sequence 2s-3f 3s-4f 6s-7f wire size & type #33, single insulation, 130 c #33, single insulation, 130 c #46, triple insulation, 130 c number of turns 13 13 1600 winding method bifilar 3. physical specification & wiring diagram
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