mkw3000 series dc/dc converter 20w e-mail:sales@minmax.com.tw tel:886-6-2923150 2012/08/28 rev:5 page 1 of 5 ? features ? 2x 1x 0.4 metal package ? wide 2:1 input range ? very high efficiency up to 89% ? operating temp. range C40c to +80c ? short circuit protection ? i/oisolation 1500vdc ? input filter meets en 55022,class a and fcc, level a ? remote on/off (option) ? 3 years product warranty product overview the minmax mkw30 series is a range of isolated 20w dc/dc converter modules featuring fully regulated o utput voltages and wide 2:1 input voltage ranges. the product comes in a 2x 1x 0.4 metal p ackage with industry standard pinout. an excellent efficiency allows an operating temperature range of C40c to +80c. they feature an input filter to meet en 55022,class a and optional remote on/off in put. typical applications for these converters are batte ry operated equipment and instrumentation, distribu ted power systems, data communication and general industrial electronics. 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.) f % mkw3021 3.3 4000 240 1358 81 mkw3022 5 4000 240 1984 6800 84 mkw3023 12 1670 100 1898 88 mkw3024 15 1340 80 1903 680 88 mkw3026 12 835 50 1898 88 mkw3027 12 (9 ~ 18) 15 670 40 1903 30 50 270# 88 mkw3031 3.3 4000 240 671 82 mkw3032 5 4000 240 980 6800 85 mkw3033 12 1670 100 938 89 mkw3034 15 1340 80 941 680 89 mkw3036 12 835 50 938 89 mkw3037 24 (18 ~ 36) 15 670 40 941 17 30 270# 89 mkw3041 3.3 4000 240 335 82 mkw3042 5 4000 240 490 6800 85 mkw3043 12 1670 100 469 89 mkw3044 15 1340 80 471 680 89 mkw3046 12 835 50 469 89 MKW3047 48 (36 ~ 75) 15 670 40 471 10 20 270# 89 # for each output
mkw3000 series dc/dc converter 20w e-mail:sales@minmax.com.tw tel:886-6-2923150 2012/08/28 rev:5 page 2 of 5 ? 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 8.6 8.8 9 24v input models 17 17.5 18 startup threshold voltage 48v input models 34 35 36 12v input models 8.1 8.3 8.5 24v input models 16 16.5 17 under voltage shutdown 48v input models 32 33 34 vdc reverse polarity input current 2 a short circuit input power 3500 mw internal power dissipation 4500 mw conducted emi all models compliance to en 55022,class a and fcc part 15,clas s a output specifications parameter conditions min. typ. max. unit output voltage setting accuracy at 50% load and nom inal vin 1.0 %vnom. output voltage balance dual output, balanced loads 0.5 2.0 % line regulation vin=min. to max. 0.1 0.3 % load regulation (3.3vout) io=10% to 100% 0.5 1.0 % load regulation io=10% to 100% 0.1 0.5 % ripple & noise (20mhz) 55 80 mv pp transient recovery time 150 300 s transient response deviation 25% load step change 2 4 % temperature coefficient 0.01 0.02 %/ over load protection foldback 110 tbd 160 % short circuit protection continuous 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 290 330 360 khz mtbf (calculated) milhdbk217f@25 , ground benign 800,000 hours safety approvals ul/cul 609501 recognition(csa certificate), iec/en 609501(cbscheme) input fuse 12v input models 24v input models 48v input models 4000ma slowblow type 2000ma slowblow type 1000ma slowblow type remote on/off control parameter conditions min. typ. max. unit converter on 2.5v ~ 100v or open circuit converter off 0v ~ 1v or short circuit control input current (on) vctrl = 5.0v 5 a control input current (off) vctrl = 0v 100 a control common referenced to negative input standby input current nominal vin 2 5 ma
mkw3000 series dc/dc converter 20w e-mail:sales@minmax.com.tw tel:886-6-2923150 2012/08/28 rev:5 page 3 of 5 ? environmental specifications parameter conditions min. max. unit operating ambient temperature range (see power dera ting curve) natural convection 40 +80 case temperature +100 storage temperature range 50 +125 humidity (non condensing) 95 % rel. h cooling freeair 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 rated o utput 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 020mhz. 4 these power converters require a minimum output l oading to maintain specified regulation, operation under noload conditions will not damage these modu les; however they may not meet all specifications listed . 5 all dc/dc converters should be externally fused a t the front end for protection. 6 other input and output voltage may be available, please contact factory. 7 to order the converter without remote on/off func tion, please add suffix n (e.g.mkw3021n) to order code. 8 to order the converter with heatsink, please add suffix h (e.g. mkw3021h) to order code. 9 that natural convection is about 20lfm but is n ot equal to still air (0 lfm). 10 specifications subject to change without notice.
mkw3000 series dc/dc converter 20w e-mail:sales@minmax.com.tw tel:886-6-2923150 2012/08/28 rev:5 page 4 of 5 ? package specifications mechanical dimensions pin connections pin single output dual output 1 +vin +vin 2 vin vin 3 +vout +vout 4 no pin common 5 vout vout 6 remote on/off 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 nonconductive baseplate base material : fr4 pcb (flammability to ul 94v0 rated) pin material : copper alloy with gold plate over nickel subplate weight : 32g heatsink (option Ch) physical characteristics heatsink material : aluminum finish : black anodized coating weight : 9g ? the advantages of adding a heatsink are: 1. to help heat dissipation and increase the stabil ity 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 2 6 3.6 [0.14] 1.1 [0.04] 31.0[1.22]max 31.1[1.22] 17.2[0.68]max converter clamp thermal pad heat-sink
mkw3000 series dc/dc converter 20w 18, sin sin road, an-ping industrial district, tainan 7 02, taiwan tel: 886-6-2923150 fax: 886-6-2923149 e-mail: sales@minmax.com.tw 2012/08/28 rev:4 page 5 of 5 ? minmax technology co., ltd. test setup input reflectedripple current test setup input reflectedripple current is measured with a i nductor lin (4. 7 h) and cin (220uf, esr < 1.0 at 100 khz) to simul ate source impedance. capacitor cin, offsets possible battery impedance. current ripple is measured at the input terminals of the module, measurement bandwidth is 0500 khz. +out -out +vin -vin dc / dc converter load battery + lin + cin to oscilloscope current probe peaktopeak output noise measurement test use a cout 1.0f ceramic capacitor. scope measureme nt should be made by using a bnc socket, measuremen t bandwidth is 020 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 technical notes remote on/off positive logic remote on/off turns the module on du ring a logic high voltage on the remote on/off pin, and off during a logic low. to turn the power modu le on and off, the user must supply a switch to control the voltag e between the on/off terminal and the vin terminal . the switch can be an open collector or equivalent . a logic low is 0v to 1.0v. a logic high is 2.5v to 100v. the maximum sink current at on/off terminal during a logic low is 100 a. the maximum allowabl e leakage current of the switch at on/off terminal (2.5 to 10 0v) is 5a. overcurrent protection to provide protection in a fault (output overload) condition, the unit is equipped with internal curre nt limiting circuitry and can endure current limiti ng for an unlimited duration. at the point of currentlimit inception, the unit shifts from voltage control to current con trol. the unit operates normally once the output cu rrent is brought back into its specified range. overvoltage protection the output overvoltage clamp consists of control ci rcuitry, which is independent of the primary regula tion loop, that monitors the voltage on the output terminals. the control loop of the clamp has a higher voltage set point than the primary loop. this provides a r edundant voltage control that reduces the risk of o utput overvoltage. the ovp level can be found in the out put data . input source impedance the power module should be connected to a low acim pedance input source. highly inductive source imped ances can affect the stability of the power module. in applications where power is supplied over long l ines and output loading is high, it may be necessar y to use a capacitor at the input to ensure startup . capacitor mounted close to the power module helps e nsure stability of the unit, it is recommended to u se a good quality low equivalent series resistance (esr < 1.0 at 100 khz) capacitor of a 22f for the 12v in put devices and a 6.8f 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 rip ple and noise performance. to reduce output ripple, it is recommended to use 4.7f 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 mkw3000 series has limitation of maximum connec ted capacitance at the output. the power module may be operated in current limiting mode during start up, affecting the rampup and the startup time. for op timum performance we recommend 270f maximum capaci tive load for dual outputs, 680f capacitive load f or 12v & 15v outputs and 6800f capacitive load for 3. 3v & 5v outputs. the maximum capacitance can be fou nd in the data sheet. thermal considerations many conditions affect the thermal performance of t he power module, such as orientation, airflow over the module and board spacing. to avoid exceeding th e maximum temperature rating of the components inside the power module, the case temperature must be kep t below 100 . the derating curves are determined from measurement s obtained in a test setup. dut position of air velocity probe and thermocouple 50mm / 2in air flow 15mm / 0.6in
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