features ? 2?x 1?x 0.4? metal package ? wide 2:1 input range ? high efficiency up to 86% ? operating temp. range ?40c to +80c ? short circuit protection ? i/o-isolation 1500 vdc ? input filter to meet en55022,class a (option) ? heatsink (option) ? cost optimized design ? 3 years product warranty product overview the mkw2500 series is a range of isolated 15w dc/dc converter modules featu ring fully regulated output voltages and wide 2:1 input voltage ranges. the product comes in a 2?x 1?x 0.4? metal package with industry standard pinout.an excellent efficiency allows an operating temperature range of ?40 c to +80c. they feature as option input filter to meet en55022,class a and remote on/off input. these dc/dc converters offer an eco nomical solution for many co st critical applications in battery-powered equipment and instru mentation. model selection guide output current input current efficiency (typ.) input voltage (range) output voltage max. min. @max. load @no load reflected ripple current max. capacitive load @max. load model number vdc vdc ma ma ma(typ.) ma(typ.) ma(typ.) uf % mkw2521 3.3 3000 300 1057 78 mkw2522 5 3000 300 1524 82 mkw2529 5.1 3000 300 1574 81 mkw2523 12 1250 125 1452 86 mkw2524 15 1000 100 1452 470 86 mkw2526 12 625 62.5 1452 86 mkw3267 12 (9 ~ 18) 15 500 50 1452 30 50 220# 86 MKW2531 3.3 3000 300 528 78 mkw2532 5 3000 300 762 82 mkw2539 5.1 3000 300 787 81 mkw2533 12 1250 125 726 86 mkw2534 15 1000 100 726 470 86 mkw2536 12 625 62.5 726 86 mkw2537 24 (18 ~ 36) 15 500 50 726 20 40 220# 86 mkw2541 3.3 3000 300 264 78 mkw2542 5 3000 300 381 82 mkw2549 5.1 3000 300 393 81 mkw2543 12 1250 125 363 86 mkw2544 15 1000 100 363 470 86 mkw2546 12 625 62.5 363 86 mkw2547 48 (36 ~ 75) 15 500 50 363 10 30 220# 86 # for each output t otal power in total power international, inc toll free: 877-646-0900 www.total-power.com
mkw2500 series dc/dc converter 15w input specifications parameter model min. typ. max. unit 12v input models -0.7 --- 25 24v input models -0.7 --- 50 input surge voltage (1 sec. max.) 48v input models -0.7 --- 100 12v input models 8 8. 5 9 24v input models 15 17 18 start-up voltage 48v input models 30 33 36 12v input models 7 8 8. 5 24v input models 13 15 17 under voltage shutdown 48v input models 25 29 34 vdc reverse polarity input current --- --- 1 a short circuit input power --- --- 3500 mw internal power dissipation --- --- 5000 mw conducted emi (with suffix a only) all models compliance to en 55022,class a and fcc part 15,class a output specifications parameter conditions min. typ. max. unit output voltage accuracy --- 1.0 2.0 % output voltage balance dual output, balanced loads --- 0.5 2.0 % line regulation vin=min. to max. --- 0.1 0.5 % load regulation io=10% to 100% --- 0.5 1.0 % ripple & noise (20mhz) --- 55 80 mv p-p ripple & noise (20mhz) over line, load & temp. --- --- 100 mv p-p ripple & noise (20mhz) --- --- 15 mv rms transient recovery time --- 300 500 us transient response deviation 25% load step change --- 2 4 % temperature coefficient --- 0.01 0.02 %/ over load protection foldback 120 150 --- % short circuit prot ection cont inuous general specifications parameter conditions min. typ. max. unit i/o isolation voltage (rated) 60 seconds 1500 --- --- vdc i/o isolation resistance 500 vdc 1000 --- --- m ? i/o isolation capacitance 100khz, 1v --- 1200 1500 pf switching frequency 290 330 400 khz mtbf (calculated) mil-hdbk-217f@25 , ground benign 700,000 --- --- hours safety approvals ul/cul 60950-1 recognition(cs a certificate), iec/en 60950-1(cb-scheme) input fuse 12v input models 24v input models 48v input models 2500ma slow-blow type 1250ma slow-blow type 750ma slow-blow type remote on/off control parameter conditions min. typ. max. unit converter on 2.5v ~ 5.5v or open circuit converter off -0.7v ~ 0.8v or short circuit control input current (on) vctrl = 5.0v --- --- 50 ua control input current (off ) vctrl = 0v --- --- -1 ma control common referenced to negative input standby input current nominal vin --- --- 10 ma t otal power in total power international, inc toll free: 877-646-0900 www.total-power.com totatotal power international, inc.
mkw2500 series dc/dc converter 15w environmental specifications parameter conditions min. max. unit operating temperature range (wit h derating) ambient -40 +80 case temperature --- +100 storage temperature range -50 +125 humidity (non condensing) --- 95 % rel. h cooling free-air convection lead temperature (1.5mm from case for 10sec.) --- 260 power derating curve derating curve without heatsink derating curve with heatsink notes 1 specifications typical at ta=+25 , resistive load, nominal input voltage and ra ted output current unless otherwise noted. 2 transient recovery time is measured to within 1% error band for a step change in output load of 75% to 100% 3 ripple & noise measurement bandwidth is 0-20mhz. 4 these power converters require a minimu m output loading to maintain specified re gulation, operation u nder no-load conditions will not damage these modules; however they may not meet all specifications listed. 5 all dc/dc converters should be externally fused at the front end for protection. 6 other input and output voltage may be av ailable, please contact factory. 7 to order the converter with remote on/off function, add suffix rc (e.g. mkw2521-rc) to order code. 8 to order the converter with input filter meeting en55022, class a , add suffix a (e.g. mkw2521a) to order code. 9 to order the converter with heatsink, add suffix h (e.g. mkw2521h) to order code. 10 specifications subject to change without notice. t otal power in total power international, inc toll free: 877-646-0900 www.total-power.com totatotal power international, inc.
mkw2500 series dc/dc converter 15w package specifications mechanical dimensions pin connections pin single output dual output 1 +vin +vin 2 -vin -vin 3 +vout +v out 4 no pin common 5 -vout -v out 6 remote on/off (optional) nc: no connection ? all dimensions in mm (inches) ? tolerance: x.x0.25 (x.xx0.01) x.xx0.13 ( x.xxx0.005) ? pin diameter ? 1.0 0.05 (0.040.002) physical characteristics case size : 50.8x25.4x10.2mm (2.0x1.0x0.40 inches) case material : metal with non-conductive baseplate base material : fr4 pcb (flammability to ul 94v-0 rated) weight : 32g heatsink (option ?h) physical characteristics heatsink material : aluminum finish : black anodized coating weight : 9g ? the advantages of adding a heatsink are: 1. to help heat dissipati on and increase the stability and reliability of dc/dc converters at high operating temperature atmosphere. 2. to upgrade the operating temperature of dc/dc converters, please refer to derating curve. bottom view 10.16 5.08 6.0 10.2 [0.24] [0.40] 50.8 [2.00] [0.40] 10.16 [0.40] 7.62 [0.30] [0.20] 1.00 [ 0.04 ] 7.62 [0.30] 25.4 [1.00] 2.54 [0.10] 15.2 [0.60] 20.32 [0.80] 3 4 5 1 26 3.6 [0.14] 1.1 [0.04] 31.0 [1.22]max heat-sink thermal pad clamp converter 23.0 [0.91] 18.0 [0.71]max t otal power in total power international, inc toll free: 877-646-0900 www.total-power.com totatotal power international, inc.
mk w2500 series dc/dc converter 15w test configurations input reflected-ripple current test setup input reflected-ripple current is measured with a inductor lin (4 .7uh) and cin (220uf, esr < 1.0 ? at 100 khz) to simulate source impedance. capacitor cin, offsets possible battery im pedance. current ripple is measured at the input terminals of the module, measuremen t bandwidth is 0-500 khz. +out -out +vin -vin dc / dc converter load battery + lin + cin to oscilloscope current probe peak-to-peak output noise measurement test use a cout 0.47uf ceramic capacitor. scope measurement should be made by using a bnc socket, measurement bandwidth is 0-20 mhz . position the load between 50 mm and 75 mm from the dc/dc converter. +out -out +vin -vin single output dc / dc converter resistive load scope copper strip cout copper strip +out -out +vin -vin dual output dc / dc converter resistive load scope copper strip cout com. scope cout copper strip copper strip design & feature considerations remote on/off positive logic remote on/off turns the m odule on during a logic high voltage on the remote on/off pin, and off during a logic l ow. to turn the power module on and off, the user must supply a switch to control the voltage between the on/off terminal and the -vin terminal. the switch can be an o pen collector or equivalent. a logic low is -0.7v to 0.8v. a logic high is 2.5v to 5.5v. the maximum sink current at on/of f terminal during a logic low is -1 ma. the maximum allowable leakage current of the switch at on/off terminal (2.5 to 5.5v) is 50ua. overcurrent protection to provide protection in a fault (output overload) condition, the unit is equipped with internal cu rrent limiting circuitry and can endure current limiting for an unlimited duration. at the point of current-limit in ception, the unit shifts from voltage contro l to current control. the unit operates n ormally once the output current is brought back into its specified range. input source impedance the power module should be connected to a lo w ac-impedance input source. highly inductive source impedances can affect the stab ility of the power module. in applications where power is supplied over long lines and output loading is high, it may be necessary to use a capacitor at t he input to ensure startup. capacitor mounted close to the power module helps ensure stabilit y of the unit, it is recommended to use a good quality low equ ivalent series resistance (esr < 1.0 ? at 100 khz) capacitor of a 22uf for the 12v input devices and a 6.8uf for the 24v and 48v devices. + +out -out +vin -vin dc / dc converter load dc power source + - cin output ripple reduction a good quality low esr capacitor placed as close as practicable across the load will give the best ripple and noise performance . to reduce output ripple, it is recommended to use 4.7uf capacitors at the output. +out -out +vin -vin load dc power source + - cout single output dc / dc converter +out -out +vin -vin load dc power source + - cout com. dual output dc / dc converter load cout maximum capacitive load the mkw2500 series has limitation of maximum connected capacitanc e at the output. the power module may be operated in current limiting mode during start-up, affecting the ramp-up and the startup time. for optimum per formance we recommend 220uf maximum capacitive load for dual output s and 470uf capacitive load for single outputs. the maximum capacitance can be found in the data sheet. thermal considerations many conditions affect the thermal perform ance of the power module, such as orient ation, airflow over the module and board spac ing. to avoid exceeding the maximum temperature rating of the components inside the power module, the case temperature must be kept below 100 . the derating curves are determined from measurements obt ained in a test setup. dut position of air velocity probe and thermocouple 50mm / 2in air flow 15mm / 0.6in t otal power in total power international, inc toll free: 877-646-0900 www.total-power.com totatotal power international, inc.
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