dcdc specification 15/20 watts ? very high power density ? wide 4:1 input range ? operating temperature 40 c to +100 c ? single & dual outputs ? 1600 vdc isolation ? high efficiency up to 89% ? 3 year warranty jtk series input input voltage range ? 24 v (9-36 vdc) 48 v (18-75 vdc) input current ? see table input filter ? pi network input reflected ? jtk15: 20 ma pk-pk ripple current jtk20: 30 ma pk-pk through 12 h inductor and 47 f capacitor, 5 hz to 20 mhz input surge ? 24 v models: 50 vdc for 100 ms ? 48 v models: 100 vdc for 100 ms output output voltage ? see table output trim ? 10% max on single output minimum load ? no minimum load required initial set accuracy ? 1% max start up delay ? 20 ms typical line regulation ? jtk15: 0.2% max, jtk20: 0.5% max load regulation ? 0.5% max single, 1.0% max dual cross regulation ? 5% on dual output models, (see note 2) transient response ? <3% max deviation, recovery to within 1% in 250 s for a 25% load change ripple & noise ? 100 mv pk-pk, 20 mhz bandwidth, (see note 3) overload protection ? jtk15: 170% of full load typical, jtk20: 150% of full load typical overvoltage protection ? 3.3 v models: 3.9 v typical 5 v models: 6.2 v typical 12 v models: 15 v typical 15 v models: 18 v typical 5 v models: 6.2 v typical 12 v models: 15 v typical 15 v models: 18 v typical short circuit protection ? trip & restart (hiccup) with auto recovery maximum capacitive ? see table load temperature ? 0.02/c max coefficient remote on/off ? on >3.0 vdc or open circuit off <1.2 vdc or short circuit pins 2 & 3 xppower.com general efficiency ? see table isolation ? 1600 vdc input to output 1600 vdc input to case 1600 vdc output to case isolation capacitance ? jtk15: 1200 pf max jtk20: 1000 pf max switching frequency ? jtk15: 375 khz typical jtk20: 330 khz typical power density ? jtk15: 38.4 w/in 3 , jtk20: 51.3 w/in 3 mtbf ? >560 khrs to mil-std-217f at 25 c, gb environmental operating temperature ? -40 c to +100 c, jtk15: derate from 100% load at +65 c to no load at +100 c, jtk20: derate from 100% load at +55 c to no load at +100 c case temperature ? +105 c max storage temperature ? -40 c to +125 c humidity ? up to 90%, non-condensing cooling ? natural convection emc emissions ? en55022, level a conducted & radiated with external components - see applications note esd immunity ? en61000-4-2, level 2 perf criteria a radiated immunity ? en61000-4-3, 3 v/m perf criteria a eft/burst ? en61000-4-4, level 3 perf criteria a* conducted immunity ? en61000-4-6, 3 v rms perf criteria a magnetic fields ? en61000-4-8, 1 a/m perf criteria a *external input capacitor required 220 f / 100 v.
21-jan-11 dcdc jtk15/20 application notes mechanical details models and ratings notes 1. all dimensions are in inches (mm) 2. weight: 0.04 lbs (20 g) approx. 3. pin diameter: 0.04 0.002 (1.0 0.05) 4. pin pitch tolerance: 0.014 (0.35) 5. case tolerance: 0.02 (0.5) output can be externally trimmed by using this method. (single output models only). for variable trimming, use 100 k ? potentiometer. contact sales for details. 1.00 (25.4) bottom view 0.10 (2.54) 0.10 (2.54) 0.40 (10.16) 0.20 (5.08) 1.00 (25.40) 0.40 (10.16) 0.80 (20.32) 0.10 (2.54) 0.40 (10.16) 0.30 (7.62) 45 6 1 2 3 0.39 (9.90) dia 0.04 (1.00) 0.22 (5.60) print face pin connections pin single dual 1 +vin +vin 2 -vin -vin 3 remote on/off remote on/off 4 +vout +vout 5 trim com 6 -vout -vout input voltage output voltage output current input current (1) maximum capacitive load efficiency model number no load full load 9-36 v 3.3 v 4.000 a 15 ma 647 ma 1000 f 86% jtk1524s3v3 5.0 v 3.000 a 15 ma 727 ma 1000 f 87% jtk1524s05 12.0 v 1.300 a 15 ma 747 ma 330 f 88% jtk1524s12 15.0 v 1.000 a 15 ma 710 ma 220 f 89% jtk1524s15 5.0 v 1.500 a 15 ma 744 ma 470 f 85% JTK1524D05 12.0 v 0.625 a 15 ma 720 ma 220 f 88% jtk1524d12 15.0 v 0.500 a 15 ma 710 ma 100 f 89% jtk1524d15 18-75 v 3.3 v 4.000 a 10 ma 331 ma 1000 f 84% jtk1548s3v3 5.0 v 3.000 a 10 ma 368 ma 1000 f 86% jtk1548s05 12.0 v 1.300 a 10 ma 378 ma 330 f 87% jtk1548s12 15.0 v 1.000 a 10 ma 360 ma 220 f 88% jtk1548s15 5.0 v 1.500 a 10 ma 377 ma 470 f 84% jtk1548d05 12.0 v 0.625 a 10 ma 363 ma 220 f 87% jtk1548d12 15.0 v 0.500 a 10 ma 360 ma 100 f 88% jtk1548d15 9-36 v 3.3 v 4.500 a 50 ma 720 ma 10000 f 86% jtk2024s3v3 5.0 v 4.000 a 50 ma 936 ma 5000 f 89% jtk2024s05 12.0 v 1.670 a 22 ma 936 ma 850 f 89% jtk2024s12 15.0 v 1.330 a 22 ma 936 ma 700 f 89% jtk2024s15 12.0 v 0.833 a 25 ma 936 ma 470 f 89% jtk2024d12 15.0 v 0.667 a 25 ma 936 ma 330 f 89% jtk2024d15 18-75 v 3.3 v 4.500 a 30 ma 309 ma 10000 f 86% jtk2048s3v3 5.0 v 4.000 a 30 ma 468 ma 5000 f 89% jtk2048s05 12.0 v 1.670 a 15 ma 468 ma 850 f 89% jtk2048s12 15.0 v 1.330 a 15 ma 468 ma 700 f 90% jtk2048s15 12.0 v 0.833 a 15 ma 468 ma 470 f 89% jtk2048d12 15.0 v 0.667 a 15 ma 468 ma 330 f 89% jtk2048d15 output trim 5 rtrim-up 6 4 5 rtrim-down 1. input current measured at nominal 24 v and 48 v input. 2. when one output is set to 100% load, and the other varies between 25% and 100% load. 3. measured with 1 f ceramic capacitor and 10 f tantalum capacitor across output rails. 12 ? 220 ? + - 2.2 ? +vin +vout dc/dc converter -vout load -vin notes input filter trim resistor values model number trim up 10% trim down 10% jtk - s3v3 8 k 12 k jtk - s05 10 k 5 k jtk - s12 20 k 7 k jtk - s15 20 k 6 k .< |
