pc500.b (5/02) 44 us 858 674 8100 ? ? uk 44 1483 401 700 ? ? france 33 3 84 35 04 04 ? ? singapore 65 287 8998 ? ? taiwan 886 2 2698 0228 ? ? hong kong 852 2788 6588 ? ? http://www.pulseeng.com tht current sense transformers ul/c-ul recognized components 3000 vrms gate to drive winding test useful operating frequency from 50 khz to 500 khz most popular winding configurations mechanical schematic electrical specifications @ 25c ? operating temperature -40c to 130c part turns primary inductance dcr pri dcr sec1 dcr sec2 hi-pot number ratio (1-10) (mh min) (1-10) ( ? max) (3-7) (m ? 15% ) (4-8) (m ? 15% ) (pri-sec) (vrms) p0581 200:1:1 76 2.8 1.7 1.7 3000 p0582 100:1:1 19 1.4 1.7 1.7 3000 p0583 50:1:1 5 0.7 1.7 1.7 3000 additional specifications reference data calculation data part rt ipk droop max flux kb req number (amps) (%) density (m ? ) p0581 200 34 1.00 2000 17.12 .9 p0582 100 35 1.98 2000 68.49 .8 p0583 15 36 1.19 2000 273.97 .75 1. these current sense transformers have two one turn primaries that can be used in parallel. the listed current ratings are for parallel connection. 2. the reference values are for an application using the termination resistor (rt) and operating with unipolar waveform at 100 khz, 40% duty cycle. the estimated temperature rise is 55 c. 3. the peak flux density should remain below 2100 gauss to ensure that the core does not saturate. use the following formula to calculate the peak flux density: bpk = kb * ipk * rt * don/(ff * freq. in khz) where: rt is the terminating resistor in the application and ff is 1 for unipolar waveform and 2 for bipolar waveform 4. to calculate the droop: droop exponent (d) = rt * don/(lpri in mh * freq. in khz) %droop = (1-e -d ) * 100 5. the temperature rise of the component is calculated based on the total core loss and copper loss: a. to calculate total copper loss (w): p(cu) = ipk 2 * req * ff * don where: ff is 1 for unipolar waveform and 2 for bipolar waveform b. to calculate total core loss (w): p(core) = 0.000073 * (freq. in khz) 1.67 * (bop in kg) 2.532 where: bop in kg = kb * ipk * rt * don/(2000 * freq. in khz) c. to calculate temperature rise: temperature rise (c) = 60.18 * (core loss(w) + copper loss (w)) .833 notes: weight . . . . . . . . . . . . . . . .5 grams tray . . . . . . . . . . . . . . . . . . .20/tray dimensions: inches mm unless otherwise specified, all tolerances are .010 0,25 .750 max 19,05 .810 max 20,57 .580 max 14,73 p058x date code country of origin .130 3,30 suggested pcb hole pattern .200 5,08 .700 17,78 .350 8,89 (6x) .040 14 10 7 3 10 14 7 8 50t, 100t, or 200t 1t 1t pri sec 3 7 4 8 1 10
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