mkw2000 series dc/dc converter 12w e-mail:sales@minmax.com.tw tel:886-6-2923150 2012/03/19 rev:4 page 1 of 4 ? features ? 2?x 1?x 0.4? metal package ? ultra-wide 4:1 input range ? operating temp. range ?40c to +85c ? short circuit protection ? i/o-isolation 1500 vdc ? input filter meets en 550 22,class a and fcc, level a ? 3 years product warranty product overview the minmax mkw2000 series is a range of isolated 12w dc/dc converter modules feat uring fully regulated output voltages and ultr a-wide 4:1 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 to +85c (with derating). typical applications for these converters are in battery ope rated equipment and instrumentatio n, distributed power systems, dat a 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 over voltage protection max. capacitive load @max. load model number vdc vdc ma ma ma(typ.) ma(typ.) vdc(typ.) f % mkw2021 3.3 2400 240 423 3.9 78 mkw2022 5 2000 200 508 6.8 82 mkw2023 12 1000 100 595 15 84 mkw2024 15 800 80 595 18 470 84 mkw2025 5 1000 100 508 6.8 82 mkw2026 12 500 50 595 15 84 mkw2027 24 (9 ~ 36) 15 400 40 595 10 18 150# 84 mkw2031 3.3 2400 240 212 3.9 78 mkw2032 5 2000 200 254 6.8 82 mkw2033 12 1000 100 298 15 84 mkw2034 15 800 80 298 18 470 84 MKW2035 5 1000 100 254 6.8 82 mkw2036 12 500 50 298 15 84 mkw2037 48 (18 ~ 75) 15 400 40 298 5 18 150# 84 # for each output input specifications parameter model min. typ. max. unit 24v input models -0.7 --- 42 input surge voltage (1 sec. max.) 48v input models -0.7 --- 84 24v input models 8 8.5 9 start-up threshold voltage 48v input models 14 16 18 24v input models 7 8 8.5 under voltage shutdown 48v input models 13 15 17 vdc reverse polarity input current --- --- 1 a short circuit input power --- --- 3500 mw internal power dissipation --- --- 5000 mw conducted emi all models compliance to en 55022,class a and fcc part 15,class a
mkw2000 series dc/dc converter 12w e-mail:sales@minmax.com.tw tel:886-6-2923150 2012/03/19 rev:4 page 2 of 4 ? output specifications parameter conditions min. typ. max. unit output voltage setting accuracy at 50% load and nominal vin --- --- 1.0 %vom. output voltage balance dual out put, balanced loads --- 0.5 2.0 % line regulation vin=min. to max. --- 0.1 0.5 % io=10% to 100% (3.3 vo) --- 0.8 1.0 % load regulation io=10% to 100% --- 0.2 0.5 % ripple & noise (20mhz) --- 50 75 mv p-p transient recovery time --- 150 250 sec transient response deviation 25% load step change --- 1.5 2.5 % temperature coefficient --- 0.01 0.02 %/ over load protection foldback 120 tbd --- % short circuit prot ection 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 --- 500 650 pf switching frequency 300 350 400 khz mtbf (calculated) mil-hdbk-217f@25 , ground benign 700,000 --- --- hours safety approvals ul/cul 60950-1 recogni tion(ul certificate), iec/en 60950-1 input fuse 24v input models 48v input models 1500ma slow-blow type 750ma slow-blow type environmental specifications parameter conditions min. max. unit operating ambient temperat ure range (see power derating curve) natural convection -40 +85 case temperature --- +90 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 output power (%)
mkw2000 series dc/dc converter 12w e-mail:sales@minmax.com.tw tel:886-6-2923150 2012/03/19 rev:4 page 3 of 4 ? 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. mkw2021-rc) to order code. 8 that ?natural convection? is about 20lfm but is not equal to still air (0 lfm). 9 specifications subject to change without notice. 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 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 (2.0x1.0x0.4 inches) case material : metal with non-conductive baseplate pin material : copper alloy with gold plate over nickel underplate weight : 31.7g 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] 1 2 3 4 5 6
mkw2000 series dc/dc converter 12w 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 2012/03/19 rev:4 page 4 of 4 ? 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 im pedance. current ripple is measured at the input terminals of t he module, 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 0.47 f ceramic capacitor. scope measurement should be made by using a bnc socket, measurement bandwidth is 0-20 mhz. position the lo ad 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. negative logic remote on/off turns the module off during a logic low and on during a logic high. 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 open 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/off terminal during a logic low is 100 a. the maximum allowable leakage current of the switch at on/off terminal = 2.5 to 5.5v is 50 a. 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 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 10 f for the 24v input devices and a 4.7 f for the 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 3.9 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 mkw2000 series has limitation of maximum connected capacitanc e at the output. the power module may be operated in current l imiting mode during start-up, affecting the ramp-up and the startup time. for optimum performance we recommend 150 f maximum capacitive load for dual outputs and 470 f 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 90 . the derating curves are det ermined from measurements obt ained in a test setup. dut position of air velocity probe and thermocouple 50mm / 2in air flow 15mm / 0.6in
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