mew1000 series dc/dc converter 2w , sip-package e-mail:sales@minmax.com.tw tel:886-6-2923150 2013/02/04 rev:7 page 1 of 4 ? features ? high power density in sip-9 package ? small footprint: 26 x 9.2 mm (1.02x 0.36) ? ultra-wide 4:1 input range ? fully regulated output ? operating temp. range -40c to +85c ? overload protection ? i/o-isolation voltage 1500 vdc ? remote on/off control ? 3 years product warranty product overview the minmax mew1000 series is a range of isolated 2w dc/ dc converter modules featuring fully regulated output a nd ultra-wide 4:1 input voltage ranges. the product comes in a sip-9 package with a very small foo tprint occupying only 2.4 cm 2 (0.36 square in.) on the pcb. an excellent efficiency allows an operating temperature range of -40c to +85c. further features include remo te on/off control and over load protection. the very compact dimensions of these dc/dc converters make th em an ideal solution for many space critical applicatio ns in battery-powered equipment and instrumentation. 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 % mew1021 3.3 500 125 97 2200 71 mew1022 5 400 100 110 1000 76 mew1023 12 167 42 106 170 79 mew1024 15 134 33 105 110 80 mew1025 5 200 50 114 470# 73 mew1026 12 83 21 108 100# 77 mew1027 24 (9 ~ 36) 15 67 17 106 20 300 47# 79 MEW1031 3.3 500 125 49 2200 70 mew1032 5 400 100 58 1000 72 mew1033 12 167 42 54 170 78 mew1034 15 134 33 54 110 78 mew1035 5 200 50 60 470# 70 mew1036 12 83 21 55 100# 76 mew1037 48 (18 ~ 75) 15 67 17 55 15 600 47# 76 # for each output input specifications parameter model min. typ. max. unit 24v input models -0.7 --- 50 input surge voltage (1 sec. max.) 48v input models -0.7 --- 100 24v input models 4.5 6 8.5 start-up threshold voltage 48v input models 8.5 12 17 24v input models --- --- 8 under voltage shutdown 48v input models --- --- 16 vdc reverse polarity input current --- --- 0.5 a short circuit input power --- --- 1500 mw internal filter type capacitor type internal power dissipation all models --- --- 2500 mw
mew1000 series dc/dc converter 2w , sip-package e-mail:sales@minmax.com.tw tel:886-6-2923150 2013/02/04 rev:7 page 2 of 4 ? output specifications parameter conditions min. typ. max. unit output voltage setting accuracy at 50% load and nominal vin --- --- 2.0 %vnom. output voltage balance dual output, balanced loads --- 1.0 2.0 % line regulation vin=min. to max. --- 0.3 0.5 % load regulation io=25% to 100% --- 0.5 0.75 % ripple & noise max. 20mhz bandwidth --- 30 50 mv p-p transient recovery time --- 100 300 sec transient response deviation 25% load step change --- 3 5 % temperature coefficient --- 0.01 0.02 %/ output short circuit 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 --- --- md i/o isolation capacitance 100khz, 1v --- 250 500 pf switching frequency --- 300 --- khz mtbf (calculated) mil-hdbk-217f@25 , ground benign 1,000,000 --- --- hours input fuse 24v input models 48v input models 350ma slow-blow type 135ma slow-blow type remote on/off control parameter conditions min. typ. max. unit converter on under 0.6 vdc or open circuit, drops down to 0vdc by 2mv/ converter off 2.9 to 15 vdc standby input current --- 1 3 ma control input current ( on ) vin = 0v --- --- -1 ma control input current ( off ) vin = 5.0v --- --- 1 ma control common referenced to negative input environmental specifications parameter conditions min. max. unit operating ambient temperature range (see power deratin g curve) natural convection -40 +85 case temperature --- +90 storage temperature range -55 +105 humidity (non condensing) --- 95 % rel. h cooling free-air convection lead temperature (1.5mm from case for 10sec.) --- 260 power derating curve output power (%)
mew1000 series dc/dc converter 2w , sip-package e-mail:sales@minmax.com.tw tel:886-6-2923150 2013/02/04 rev:7 page 3 of 4 ? notes 1 specifications typical at ta=+25 , resistive load, nominal input voltage and rated output cu rrent unless otherwise noted. 2 transient recovery time is measured to within 1% error ba nd for a step change in output load of 75% to 100%. 3 ripple & noise measurement bandwidth is 0-20 mhz. 4 these power converters require a minimum output loading to maintain specified regulation, operation under no-load cond itions will not damage these modules; however, they may not meet all specifications liste d. 5 all dc/dc converters should be externally fused at the f ront end for protection. 6 other input and output voltage may be available, please contact factory. 7 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 6 +vout +vout 7 nc common 8 nc nc 9 -vout -vout nc: no connection ? all dimensions in mm (inches) ? tolerance: x.x 0.5 (x.xx0.0 2 ) x.xx 0. 25 ( x.xxx0.0 1 ) ? pins 0.1(0.004) physical characteristics case size : 25.95x9.25x12.45 mm (1.02x0.36x0.49 inches) case material : non-conductive black plastic (flammability to ul 94v-0 rated ) pin material : alloy 42 weight : 6.5g 2x2.54 [2x0.10] 7.62 [0.30] 3x2.54 [3x0.10] 25.95 [1.02] 0.5 [0.02] 12.45 [0.49] 3.2 [0.13] 0.5 [0.02] 0.50 [0.02] 24.95 [0.98] 0.25 [0.01] bottom view 3.0 [0.12] 9.25 [0.36] 1 2 3 6 7 8 9 2.0 [0.08]
mew1000 series dc/dc converter 2w , sip-package 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 2013/02/04 rev:7 page 4 of 4 ? minmax technology co., ltd. test setup input reflected-ripple current test setup input reflected-ripple current is measured with a induct or lin (4.7h) and cin (220f, esr < 1.0d at 100 khz) to simulate source impedance. capacitor cin, offsets possible battery impedance. current ripple is measured at the input terminals of the m odule, measurement 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 0.47f ceramic capacitor. scope measurement should be made by using a bnc socket, measurement band width 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 negative logic remote on/off turns the module off during a logic high voltage on the remote on/off pin, and on dur ing a logic low. to turn the power module on and off, the user must supply a switch to control the voltage bet ween the on/off terminal and the -vin terminal. the switc h can be an open collector or equivalent. a logic high is 2.9v to 15v. a logic low is under 0.6 vd c or open circuit, drops down to 0vdc by 2mv/ . the maximum sink current at on/off terminal during a logic low is 1 ma. the maximum allowable leakage current of th e switch at on/off terminal =(under 0.6vdc or open circ uit) is 1ma. maximum capacitive load the mew1000 series has limitation of maximum connected capac itance at the output. the power module may be operat ed in current limiting mode during start-up, affecting the ramp-up and the startup time. the maximum c apacitance can be found in the data sheet. overcurrent protection to provide protection in a fault (output overload) cond ition, the unit is equipped with internal current limiting circ uitry and can endure current limiting for an unlimited duration. at the point of current-limit inception, the unit shifts from voltage control to current control. the unit operates normally once the output current is brought b ack into its specified range. input source impedance the power module should be connected to a low ac-impeda nce input source. highly inductive source impedances ca n affect the stability 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 cap acitor on the input to insure startup. by using a good quality low equivalent series resistance (e sr < 1.0d at 100 khz) capacitor of a 1.5f for the 24 v and 48v devices, capacitor mounted close to the power module helps ensure stability of the unit. + +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 pract icable across the load will give the best ripple and noise performance. to reduce output ripple, it is recommended to use 3.3f 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 thermal considerations many conditions affect the thermal performance of the pow er module, such as orientation, airflow over the module an d board spacing. to avoid exceeding the maximum temperature rating of the components inside the po wer module, the case temperature must be kept below 90 . 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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