dcdc specification 35150 watts ? 1040 vdc input range ? designed for vetronic & avionic use ? magnetic feedback technology ? 55 c to +100 c operation ? milstd 461 and defstan 59411 ? milstd 1275 and defstan 615 ? 3 year warranty mtc series input input voltage range ? 10.0-40.0 vdc transient input range ? 50 vdc for 100 ms inrush current ? <40 a at 28 vdc turn on ? >9.5 vdc turn off ? <9.0 vdc input reverse voltage ? none protection input current ? see table output output voltage ? see table output voltage trim ? -20%, +10% (10% for 3.3 v version), see note 2 minimum load ? no minimum load required on single output models, 5% load required on each output of dual output models line regulation ? 1% vout nominal load regulation ? single output: 1% vout nominal, dual output: 2% output set tolerance ? 1.5% max ripple & noise ? 5 vout: 50 mv pk-pk max, >5 vout: 100 mv pk-pk, at max load and 20 mhz bandwidth overvoltage protection ? 120-140% vout max overcurrent protection ? 110-140% at nominal iout, constant power down to 40-50% of nominal output voltage short circuit protection ? continuous trip and restart (hiccup mode) until the short is removed maximum capacitive ? 300 f x iout max for startup load within 100 ms thermal warning ? active when internal temp is >105 ?c remote sense ? compensates for 0.5 v total voltage drop cross regulation ? 4% on dual outputs (see note 3) transient response ? 4% max deviation recovery to within 1% in 500 s for a 50% load change at 0.1 a/s start up time ? <100 ms start up rise time ? <20 ms current share ? parallel up to 4 modules, single output versions only (mtc75 & 150 only) temperature coefficient ? 0.03%/?c remote on/off ? on: 3.5 v or open circuit, off: 1.8 v xppower.com general efficiency ? see table isolation ? 1500 vdc input to output 1000 vdc input to case 1000 vdc output to case isolation capacitance ? 2500 pf switching frequency ? fixed, 400 khz typical (mtc35 & 50) 450 khz typical (mtc75 & 150) frequency ? 400-500 khz (mtc35 & 50) synchronization 450-550 khz (mtc75 & 150) power density ? mtc35: 31.8 w/in 3 , mtc50: 30.2 w/in 3 , mtc75: 27.4 w/in 3 , mtc150: 54.8 w/in 3 , mtbf ? >1 mhrs to mil-hdbk-217f at 25 c, gf environmental case temperature ? -40 c to +100 c (start up at -55 c) storage temperature ? -60 c to +125 c cooling ? conduction cooling through baseplate operating humidity ? 95% relative humidity 240 hrs mil-std-810f method 507.4 operating altitude ? tested to 70000 ft (21336 m) shock ? 75 g mil-std-810f method 516.5 vibration ? 15 to 2000 hz mil-std-810f method 514.5, table 514.5-viii bump ? 2000 bumps in each axis 40 g mil-std-810f method 516.5 salt atmosphere ? 48 hrs mil-std-810f method 509.4 emc conducted emissions ? en55022 conducted level b* mil-std 461f: ce102* def stan 59-411 dce01/dce02* immunity ? mil-std-704 b-f, mil-std-1275a/b/c/d* conducted ? mil-std-461f cs101, cs114, cs115, susceptibility cs116* def-stan 61-5 part 6 issue 5* * when used in conjunction with standard emi filter and surge protection modules, dsf and fso series. consult longform datasheet.
dcdc mtc35/50 models and ratings output power output voltage output current input current (1) efficiency (1) model number no load full load 35 w 3.3 vdc 10.00 a 100 ma 1.49 a 84% mtc3528s3v3 35 w 5.0 vdc 7.00 a 100 ma 1.45 a 86% mtc3528s05 35 w 12.0 vdc 2.90 a 100 ma 1.41 a 88% mtc3528s12 35 w 15.0 vdc 2.30 a 100 ma 1.40 a 88% mtc3528s15 35 w 28.0 vdc 1.30 a 100 ma 1.48 a 88% mtc3528s28 50 w 3.3 vdc 15.00 a 100 ma 2.18 a 82% mtc5028s3v3 50 w 5.0 vdc 10.00 a 60 ma 2.15 a 83% MTC5028S05 50 w 12.0 vdc 4.20 a 70 ma 2.13 a 84% mtc5028s12 50 w 15.0 vdc 3.33 a 70 ma 2.13 a 84% mtc5028s15 50 w 28.0 vdc 1.80 a 120 ma 2.15 a 83% mtc5028s28 10 9 8 7 1 2 3 4 5 6 11 2.00 (50.80) 0.17 (4.50) 1.10 (27.9) 0.50 (12.7) 7 x ? 0.031 (0.80) ? 0.039 (1.00) pins 1, 2, 9 & 10 0.28 (7.11) 0.11 (2.79) 0.11 (2.79) 0.10 (2.54) 0.12 (3.05) 0.10 (2.54) 0.10 (2.54) 0.14 (3.56) 0.14 (3.56) 0.14 (3.56) 2 x mounting holes ? 0.102 (2.60) 0.35 (8.89) 0.17 (4.50) 0.75 (18.9) 0.12 (3.05) 1.76 (44.70) 1.65 (41.80) bottom view pin connections pin single output pin single output 1 +vin 7 trim 2 -vin 8 -sense 3 thermal warning (tw) 9 -vout 4 synchronization 10 +vout 5 remote on/off 11 +sense 6 case 1. dimensions are in inches (mm) 2. tolerance: 0.02 inches (0.5 mm) 3. weight: 0.07 lb (35 g) approx 4. materials & finish: pin - material: copper finish: nickel plated 2.5 m ni and gold plated 0.3 m au. mounting hole diameter - 0.10 (2.7) clearance hole baseplate - material: aluminium case - material: non-conductive plastic mechanical details mtc35 mtc50 notes 1. typical and measured at 28 v input 2. total of voltage trim and remote sense is +10% max. notes notes 2.28 (58.00) 1.86 (47.20) bottom view 11 10 9 8 7 1 2 3 4 5 6 2.00 (50.80) 0.30 (7.62) 0.60 (15.24) 0.30 (7.62) 0.12 (3.05) 0.48 (12.19) 0.14 (3.56) 1.03 (26.20) 1.45 (36.80) 0.50 (12.70) 0.18 min. (4.60) 2 x ? 0.059 (1.50) 9 x ? 0.040 (1.02) 4 x mounting holes ? 0.122 (3.1) 0.06 (1.53) pin connections pin single output pin single output 1 +vin 7 -vout 2 remote on/off 8 -sense 3 synchronization 9 trim 4 thermal warning (tw) 10 +sense 5 -vin 11 +vout 6 case 1. dimensions are in inches (mm) 2. tolerance: 0.02 inches (0.5 mm) 3. weight: 0.14 lb (62 g) approx 4. materials & finish: pin - material: copper finish: nickel plated 2.5 m ni and gold plated 0.3 m au. mounting hole diameter - 0.126 (3.2) clearance hole baseplate - material: aluminium case - material: non-conductive plastic
dcdc mtc75/150 models and ratings output power output voltage output current input current (1) efficiency (1) model number no load full load 66 w 3.3 vdc 20.00 a 120 ma 2.87 a 82% mtc7528s3v3 75 w 5.0 vdc 15.00 a 130 ma 3.19 a 84% mtc7528s05 75 w 12.0 vdc 6.25 a 60 ma 3.19 a 84% mtc7528s12 75 w 15.0 vdc 5.00 a 40 ma 3.19 a 84% mtc7528s15 75 w 28.0 vdc 2.70 a 75 ma 3.23 a 83% mtc7528s28 75 w 12.0 vdc 3.13 a (4) 220 ma 3.23 a 83% mtc7528d12 (3) 75 w 15.0 vdc 2.50 a (4) 230 ma 3.27 a 82% mtc7528d15 (3) 132 w 3.3 vdc 40.00 a 120 ma 5.82 a 81% mtc15028s3v3 150 w 5.0 vdc 30.00 a 147 ma 6.38 a 84% mtc15028s05 150 w 12.0 vdc 12.50 a 70 ma 6.38 a 84% mtc15028s12 150 w 15.0 vdc 10.00 a 75 ma 6.30 a 86% mtc15028s15 150 w 28.0 vdc 5.35 a 170 ma 6.30 a 86% mtc15028s28 150 w 12.0 vdc 6.25 a (4) 250 ma 6.38 a 84% mtc15028d12 (3) 150 w 15.0 vdc 5.00 a (4) 275 ma 6.31 a 85% mtc15028d15 (3) notes notes 1. typical and measured at 28 v input 2. total of voltage trim and remote sense is +10% max. 3. minimum load of 5% required on one output for 4% regulation on the other. 4. each output can deliver 70% of the combined current when other output delivers between 5% and 30%. 0.50 (12.7) 1.30 (33.0) 2.00 (50.80) 0.60 (15.24) 1.40 (35.56) 0.18 min (4.6) 4-pl. 0.08 (2.03) 8-pl. 0.04 (1.02) 11 12 1 2 3 4 5 10 9 8* 7 6 2.40 (61.00) bottom view 1.90 (48.2) 8 x 0.04 (1.02) 4 x 0.08 (2.03) 2.28 (57.9) 4 x mounting holes ? 0.126 (3.2) pin connections pin single output dual output 1 +vin +vin 2 remote on/off remote on/off 3 thermal warning (tw) thermal warning (tw) 4 case case 5 -vin -vin 6 -vout -vout 7 -sense trim 8* trim common 9 +sense no pin 10 +vout +vout 11 share no pin 12 synchronization synchronization 1. dimensions are in inches (mm) 2. tolerance: 0.02 inches (0.5 mm) 3. weight: 0.28 lb (128 g) approx 4. materials & finish: pin - material: copper finish: nickel plated 2.5 m ni and gold plated 0.3 m au. mounting hole diameter - 0.126 (3.2) clearance hole baseplate - material: aluminium case - material: non-conductive plastic *on dual output versions, pin 8 is 0.08 (2.03) mechanical details
21-nov-11 dcdc application notes trim up resistor= a 1- - c k vnom vrequired r = trim-up trim down resistor= b -1 - c k vnom vrequired r = trim-down = r trim-up 1 = r-load 2 = r trim-down 3 trim up, dual output trim down, dual output +vout com trim -vout +vin -vin +vout com trim -vout +vin -vin 1 2 2 2 2 3 trim up, single output trim down, single output 1 2 2 3 +vin +vout -vin -sense -vout trim +sense +vin +vout -vin -sense -vout trim +sense mtc75 & 150 s3v3 s05 s12 s15 s28 d12 d15 a 9.826 15 21.907 28.028 54.622 46.446 58.524 b6 5 2.55 2.55 2.55 2.55 2.55 c 5.1 5.1 5.1 5.1 9.1 9.1 9.1 remote on/off this is an active low signal referenced to -vin. if >3.5v (or open circuit) is applied, the output is on. if <1.8v (or short circuit) is applied, the output is off. if module inhibit is not required, leave the pin floating. thermal warning (tw) this is an open collector signal with emitter connected to Cvin. transistor is off under normal conditions and is turned on when trip threshold is exceeded (typically 105 ?c). thermal shutdown the output of the module can be optionally turned off under a high temperature condition by connecting the thermal warning (tw) pin directly to the remote on/off pin. auto resetting. synchronization the internal switching frequency can be synchronized to an external source within the range 450 to 550 khz (mtc75 & 150) or 400 to 500 khz (mtc35 & 50). if two modules or more are synchronized, they will run at the highest frequency. connect synchronization pins directly together. share up to four modules can be forced to share by connecting the share pins directly together, derate maximum output to 90% of total power. (mtc75 & 150 w only) output trim in order to trim the output voltage of the singles up or down, connect the trim resistor either between the trim pin and +sense for trimming-up or between trim pin and -sense for trimming-down. in order to trim the output voltage of the duals up or down, connect the trim resistor either between the trim pin and +vout for trimming up or between trim pin and -vout for trimming down. the trimming output voltage range is 10% on 3v3 output voltage and -20% to +10% rated output voltage on others. see diagram & table below. mtc series mtc35 & 50 s3v3 s05 s12 s15 s28 a 9.826 15 43.814 56.056 81.993 b6 5 5.1 5.1 3.825 c 5.1 5.1 5.1 5.1 9.1
|
