mkw40 series dc/dc converter 40w , highest power density e-mail:sales@minmax.com.tw tel:886-6-2923150 2012/07/16 rev:13 page 1 of 9 ? features ? smallest encapsulated 40w converter! ? package size 2.0?x 1.0?x 0.4? ? wide 2:1 lnput range ? excellent efficiency up to 92% ? operating temp. range -40c to +80c ? over-temperature protection ? i/o-isolation voltage 1500vdc ? remote on/off control ? shielded metal case with isolated baseplate ? heatsink (optional) ? csa/ul/iec/en 60950-1 safety approval ? 3 years product warranty product overview the minmax mkw40 series is a new generati on of high performance dc-dc converter modu les setting a new standard concerning power density. the product offers fully 40w in an encapsulated, shielded metal packa ge with dimensions of just 2.0?x1.0?x0.4?. all models provide wide 2:1 input voltage range and precisely regulated output voltages. advanced circuit topology provides a very high efficiency up to 92% which allows an operating temperature range of -40c to +80 c. further features include remote on/off, trimmabl e output voltage, under-vol tage shutdown as well as overload and ove r-temperature protection. typical applications for these converters are battery operated equipment, instrument ation,distributed power architectures in co mmunication and industrial electronics and many other space critical applications. model selection guide output current input current efficiency (typ.) input voltage (range) output voltage max. min. @max. load @no load reflected ripple current over voltage protection max. capacitive load @max. load model number vdc vdc ma ma ma(typ.) ma(typ.) ma (typ.) vdc f % mkw40-12s033 3.3 8000 0 2470 120 3.9 21000 89 mkw40-12s05 5 8000 0 3750 160 6.2 13600 89 mkw40-12s12 12 3330 0 3750 160 15 2400 89 mkw40-12s15 15 2670 0 3700 150 18 1500 90 mkw40-12s24 24 1670 0 3790 160 30 600 88 mkw40-12d12 12 1670 145 3790 70 15 1200# 88 mkw40-12d15 12 (9 ~ 18) 15 1330 110 3790 60 50 18 750# 88 mkw40-24s033 3.3 8000 0 1220 75 3.9 21000 90 mkw40-24s05 5 8000 0 1830 80 6.2 13600 91 mkw40-24s12 12 3330 0 1830 85 15 2400 91 mkw40-24s15 15 2670 0 1830 75 18 1500 91 MKW40-24S24 24 1670 0 1850 85 30 600 90 mkw40-24d12 12 1670 145 1870 50 15 1200# 89 mkw40-24d15 24 (18 ~ 36) 15 1330 110 1870 45 30 18 750# 89 mkw40-48s033 3.3 8000 0 610 40 3.9 21000 90 mkw40-48s05 5 8000 0 920 50 6.2 13600 91 mkw40-48s12 12 3330 0 910 50 15 2400 92 mkw40-48s15 15 2670 0 910 50 18 1500 92 mkw40-48s24 24 1670 0 920 50 30 600 90 mkw40-48d12 12 1670 145 940 65 15 1200# 89 mkw40-48d15 48 (36 ~ 75) 15 1330 110 940 65 20 18 750# 89 # for each output
mkw40 series dc/dc converter 40w , highest power density e-mail:sales@minmax.com.tw tel:886-6-2923150 2012/07/16 rev:13 page 2 of 9 ? 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 --- --- 9 24v input models --- --- 18 start-up threshold voltage 48v input models --- --- 36 12v input models --- 8.3 --- 24v input models --- 16.5 --- under voltage lockout 48v input models --- 33 --- vdc input polarity protection none power up --- --- 30 ms start up time remote on/off nominal vin and constant resistive load --- --- 30 ms internal filter type all models lc filter (for en55022,class a compliance see page 8) short circuit current --- (hiccup mode 1.5 hz typ.) output specifications parameter conditions min. typ. max. unit output voltage setting accuracy at 50% load and nominal vin --- --- 1.0 %vnom. output voltage balance dual output, balanced loads --- --- 2.0 % line regulation vin=min. to max. --- --- 0.5 % single output --- --- 0.5 % load regulation min. load to full load dual output --- --- 1.0 % load cross regulation (dual output) asymmetrical load 25%/100% full load --- --- 5.0 % minimum load no minimum load requirement for single output models, for dual output models see table ripple & noise (20mhz) 3.3v & 5v output models --- 100 --- mv p-p ripple & noise (20mhz) 12v, 15v & 24v models --- 150 --- mv p-p ripple & noise (20mhz) dual output models --- 150 --- mv p-p transient recovery time 25% load step change --- 250 --- sec temperature coefficient --- --- 0.02 %/ over load protection current limitation at 150% typ. of iout max., hiccup short circuit protection hi ccup automatic recovery over voltage protection for shutdown voltage see model selection guide 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 --- --- 1500 pf switching frequency --- 320 --- khz mtbf(calculated) mil-hdbk-217f@25 , ground benign 328,000 --- --- 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 8000ma slow-blow type 4000ma slow-blow type 2000ma slow-blow type remote on/off control parameter conditions min. typ. max. unit converter on 3.5v ~ 12v or open circuit converter off 0v ~ 1.2v or short circuit control input current (on) vctrl = 5.0v --- 0.5 --- ma control input current (off) vctrl = 0v --- -0.5 --- ma control common referenced to negative input standby input current nominal vin --- 2.5 --- ma output voltage trim parameter conditions min. typ. max. unit trim up / down range % of nominal output voltage 10 --- --- %
mkw40 series dc/dc converter 40w , highest power density e-mail:sales@minmax.com.tw tel:886-6-2923150 2012/07/16 rev:13 page 3 of 9 ? environmental specifications max. parameter model min. without heatsink with heatsink unit mkw40-xxs033 66 73 mkw40-xxs05 mkw40-xxs12 mkw40-xxs15 46 57 operating ambient temperature range (natural convection, see derating) mkw40-xxdxx -40 40 52 natural convection wit hout heatsink 12.0 --- /w natural convection with heatsink 10.0 --- /w 100lfm convection without heatsink 9.0 --- /w 100lfm convection with heatsink 5.4 --- /w 200lfm convection without heatsink 8.0 --- /w 200lfm convection with heatsink 4.5 --- /w 400lfm convection without heatsink 6.0 --- /w thermal impedance 400lfm convection with heatsink 3.0 --- /w case temperature --- +105 thermal protection shutdown temperature 110 typ. storage temperature range -50 +125 humidity (non condensing) --- 95 % rel. h rfi six-sided shielded, metal case lead temperature (1.5mm from case for 10sec.) --- 260 power derating curve output power (%) mkw40-xxs033 derating curve wit hout heatsink mkw40-xxs033 dera ting curve with heatsink mkw40-xxs05, mkw40-xxs12, mkw40-xxs15 derating curve without heatsink mkw40-xxs05, mkw40-xxs12, mkw40-xxs15 derating curve with heatsink mkw40-xxdxx derating curve without heatsink mkw40-xxdxx derating curve with heatsink
mkw40 series dc/dc converter 40w , highest power density e-mail:sales@minmax.com.tw tel:886-6-2923150 2012/07/16 rev:13 page 4 of 9 ? efficiency curve @25 mkw40-12s033 efficiency vs load current mkw40-12s05 efficiency vs load current mkw40-12s12 efficiency vs load current mkw40-12s15 efficiency vs load current mkw40-12d12 efficiency vs load current mkw40-12d15 efficiency vs load current 0 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 % of full load efficiency(%) 9v 12v 18v 0 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 % of full load efficiency(%) 9v 12v 18v 0 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 % of full load efficiency(%) 9v 12v 18v 0 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 % of full load efficiency(%) 9v 12v 18v 0 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 % of full load efficiency(%) 9v 12v 18v 0 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 % of full load efficiency(%) 9v 12v 18v
mkw40 series dc/dc converter 40w , highest power density e-mail:sales@minmax.com.tw tel:886-6-2923150 2012/07/16 rev:13 page 5 of 9 ? efficiency curve @25 mkw40-24s033 efficiency vs load current mkw40-24s05 efficiency vs load current mkw40-24s12 efficiency vs load current mkw40-24s15 efficiency vs load current mkw40-24d12 efficiency vs load current mkw40-24d15 efficiency vs load current 0 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 % of full load efficiency(%) 18v 24v 36v 0 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 % of full load efficiency(%) 18v 24v 36v 0 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 % of full load efficiency(%) 18v 24v 36v 0 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 % of full load efficiency(%) 18v 24v 36v 0 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 % of full load efficiency(%) 18v 24v 36v 0 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 % of full load efficiency(%) 18v 24v 36v
mkw40 series dc/dc converter 40w , highest power density e-mail:sales@minmax.com.tw tel:886-6-2923150 2012/07/16 rev:13 page 6 of 9 ? efficiency curve @25 mkw40-48s033 efficiency vs load current mkw40-48s05 efficiency vs load current mkw40-48s12 efficiency vs load current mkw40-48s15 efficiency vs load current mkw40-48d12 efficiency vs load current mkw40-48d15 efficiency vs load current 0 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 % of full load efficiency(%) 36v 48v 75v 0 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 % of full load efficiency(%) 36v 48v 75v 0 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 % of full load efficiency(%) 36v 48v 75v 0 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 % of full load efficiency(%) 36v 48v 75v 0 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 % of full load efficiency(%) 36v 48v 75v 0 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 % of full load efficiency(%) 36v 48v 75v
mkw40 series dc/dc converter 40w , highest power density e-mail:sales@minmax.com.tw tel:886-6-2923150 2012/07/16 rev:13 page 7 of 9 ? 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 20 mhz, measured with a 1 f m/c and a 10 f t/c. 4 all dc/dc converters should be externally fused at the front end for protection. 5 other input and output voltage may be av ailable, please contact factory. 6 to order the converter with heatsink, please add a suffix ?hs (e.g.mkw40-12s05-hs) to order code. 7 to order the converter without re mote on/off function, please add a suffix -n (e.g.mkw40-12s05-n) to order code. 8 that ?natural convection? is about 20lfm but is not equal to still air (0 lfm). 9 specifications are subject to change without notice. package specifications mechanical dimensions pin connections pin single output dual output 1 +vin +vin 2 -vin -vin 3 remote on/off remote on/off 4 +vout +vout 5 -vout common 6 trim -vout ? 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 : 50.8x25.4x11mm (2.0x1.0x0.43 inches) case material : aluminium alloy, black anodized coating base material : fr4 pcb (flammability to ul 94v-0 rated) pin material : copper alloy with gold plate over nickel subplate weight : 30g heatsink (option ?hs) 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 operati ng temperature of dc/dc converters, please refer to derating curve. 10.16 25.4 [1.00] [0.40] 10.16 [0.40] 2.54 [0.10] 10.16 [0.40] 5.08 [0.20] bottom view 45.72 [1.80] 50.8 [2.00] 11.0 [0.43] 5.5 [0.22] 1.00 [ 0.04] 6 54 1 2 3 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
mkw40 series dc/dc converter 40w , highest power density e-mail:sales@minmax.com.tw tel:886-6-2923150 2012/07/16 rev:13 page 8 of 9 ? emi-filter to meet en 55022, class a; fcc part 15 ,level a conducted and radiated emissions en55022 class a part no. mkw40-12sxx mkw40-24sxx mkw40-48sxx c1 10 f/25v 1812 mlcc 4.7 f/50v 1812 mlcc 2.2 f/100v 1812 mlcc c2 & c3 1000pf/2kv 1808 mlcc 1000pf/2kv 1808 mlcc 1000pf/2kv 1808 mlcc part no. mkw40-12dxx mkw40-24dxx mkw40-48dxx c1 10 f/25v 1812 mlcc 4.7 f/50v 1812 mlcc 2.2 f/100v 1812 mlcc c2 & c4 1000pf/2kv 1808 mlcc 1000pf/2kv 1808 mlcc 1000pf/2kv 1808 mlcc external output trimming output can be externally trimmed by using the method shown below mkw40-xxs033 trim table trim down 1 2 3 4 5 6 7 8 9 10 % vout= vox0.99 vox0.98 vox0.97 vox0.96 vox0.95 vox0.94 vox0.93 vox0.92 vox0.91 vox0.90 volts rd= 63.59 30.28 18.19 11.95 8.13 5.56 3.70 2.31 1.21 0.34 kohms trim up 1 2 3 4 5 6 7 8 9 10 % vout= vox1.01 vox1.02 vox1.03 vox1.04 vox1.05 vox1.06 vox1.07 vox1.08 vox1.09 vox1.10 volts ru= 70.50 29.28 16.87 10.90 7.38 5.06 3.42 2.20 1.25 0.49 kohms mkw40-xxs05 trim table trim down 1 2 3 4 5 6 7 8 9 10 % vout= vox0.99 vox0.98 vox0.97 vox0.96 vox0.95 vox0.94 vox0.93 vox0.92 vox0.91 vox0.90 volts rd= 45.53 20.61 12.31 8.15 5.66 4.00 2.81 1.92 1.23 0.68 kohms trim up 1 2 3 4 5 6 7 8 9 10 % vout= vox1.01 vox1.02 vox1.03 vox1.04 vox1.05 vox1.06 vox1.07 vox1.08 vox1.09 vox1.10 volts ru= 36.57 16.58 9.92 6.59 4.59 3.25 2.30 1.59 1.03 0.59 kohms mkw40-xxs12 trim table trim down 1 2 3 4 5 6 7 8 9 10 % vout= vox0.99 vox0.98 vox0.97 vox0.96 vox0.95 vox0.94 vox0.93 vox0.92 vox0.91 vox0.90 volts rd= 394.50 179.74 106.08 68.86 46.39 31.36 20.60 12.51 6.21 1.17 kohms trim up 1 2 3 4 5 6 7 8 9 10 % vout= vox1.01 vox1.02 vox1.03 vox1.04 vox1.05 vox1.06 vox1.07 vox1.08 vox1.09 vox1.10 volts ru= 368.92 161.92 94.97 61.86 42.12 29.00 19.66 12.66 7.23 2.89 kohms mkw40-xxs15 trim table trim down 1 2 3 4 5 6 7 8 9 10 % vout= vox0.99 vox0.98 vox0.97 vox0.96 vox0.95 vox0.94 vox0.93 vox0.92 vox0.91 vox0.90 volts rd= 572.67 248.63 145.60 94.97 64.87 44.92 30.72 20.10 11.86 5.28 kohms trim up 1 2 3 4 5 6 7 8 9 10 % vout= vox1.01 vox1.02 vox1.03 vox1.04 vox1.05 vox1.06 vox1.07 vox1.08 vox1.09 vox1.10 volts ru= 392.98 182.12 108.73 71.43 48.85 33.71 22.86 14.69 8.33 3.23 kohms
mkw40 series dc/dc converter 40w , highest power density 18, sin sin road, an-ping industr ial district, tainan 702, taiwan tel: 886-6-2923150 fax: 886-6-2923149 e-mail: sales@minmax.com.tw 2012/07/16 rev:13 page 9 of 9 ? minmax technology co., ltd. test setup input reflected-ripple current test setup input reflected-ripple current is measured with a inductor lin (4.7 h) and cin (220 f, esr < 1.0 ? at 100 khz) to simulate source impedance. capacitor cin, offsets possible battery impedance. current ripple is measured at the input terminals of t he module, measurement bandwidth is 0-500 kh z. +out -out +vin -vin dc / dc converter load battery + lin + cin to oscilloscope current probe peak-to-peak output noise measurement test use a 1 f ceramic capacitor and a 10 f tantalum 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 technical notes 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 equi valent. a logic low is 0v to 1.2v. a logic high is 3.5v to 12v. the maximum sink current at the on/off termi nal (pin 3) during a logic low is -100 a. overcurrent protection to provide hiccup mode protection in a faul t (output overload) condition, the unit is equipped with in ternal current limiting c ircuitry and can endure overload for an unlimited duration. overvoltage protection the output overvoltage clamp consists of control circuitry, wh ich is independent of the primary r egulation loop, that monitors the voltage on the output terminals. the control loop of the clamp has a higher voltage set point t han the primary loop. this provides a redundant voltage control that reduces the risk of output overvoltage. the ovp level can be found in the output data . 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 ov er 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 33 f for the 12v input devices and a 10 f 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 4.7 f 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 mkw40 series has limitation of maximum connected capacitanc e at the output. the power module may be operated in current li miting mode during start-up, affecting the ramp-up and the startup time. 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 105 . the derating curves are determined from measurements obtained in a test setup. dut position of air velocity probe and thermocouple 50mm / 2in air flow 15mm / 0.6in
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