features ? high power density in sip-8 package ? small footprint: 21.8 x 9.3 mm (0.86x 0.37) ? wide 2:1 input range ? fully regulated output ? operating temp. range -40c to +85c ? overload protection ? remote on/off control ? i/o-isolation voltage 1000vdc ? 3 years product warranty product overview the mcw1000 series is a range of isolated 2w dc/dc converter modules featuring fully regulated output and wide 2:1 input voltage ranges. the product comes in a sip-8 package with a very small footprint occupying only 2.0 cm 2 (0.3 square in.) on the pcb. an excellent efficiency allows an operating temperature range of -40c to +85c. further features include remote on/off control and over load protection. the very compact dimensions of these dc/dc converters make them an ideal solution for many space critical applications 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 % mcw1011 3.3 500 125 471 2200 70 mcw1012 5 400 100 548 1000 73 mcw1013 5 (4.5 ~ 9) 12 167 42 534 40 400 170 75 mcw1021 3.3 500 125 184 2200 73 mcw1022 5 400 100 217 1000 77 mcw1023 12 (9 ~ 18) 12 167 42 209 20 300 170 80 mcw1031 3.3 500 125 96 2200 72 mcw1032 5 400 100 109 1000 77 mcw1033 24 (18 ~ 36) 12 167 42 103 10 200 170 81 MCW1041 3.3 500 125 49 2200 71 mcw1042 5 400 100 57 1000 73 mcw1043 48 (36 ~ 75) 12 167 42 53 8 500 170 79 input specifications parameter model min. typ. max. unit 5v input models -0.7 --- 15 12v input models -0.7 --- 25 24v input models -0.7 --- 50 input surge voltage (1 sec. max.) 48v input models -0.7 --- 100 5v input models 3.5 4 4.5 12v input models 4.5 7 9 24v input models 8 12 18 start-up threshold voltage 48v input models 16 24 36 5v input models --- 3.5 4 12v input models --- 6.5 8.5 24v input models --- 11 17 under voltage shutdown 48v input models --- 22 34 vdc reverse polarity input current --- --- 1 a short circuit input power --- --- 1500 mw internal filter type capacitor type internal power dissipation all models --- --- 3500 mw t otal power in total power international, inc toll free: 877-646-0900 www.total-power.com
mcw1000 series dc/dc converter 2w , sip-pack age output specifications parameter conditions min. typ. max. unit output voltage setting accuracy at 50% load and nominal vin --- --- 2.0 %vom. 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 %/ short circuit protection continuous general specifications parameter conditions min. typ. max. unit i/o isolation voltage (rated) 60 seconds 1000 --- --- vdc i/o isolation resistance 500 vdc 1000 --- --- mb i/o isolation capacitance 100khz, 1v --- 65 120 pf switching frequency 100 300 650 khz mtbf (calculated) mil-hdbk-217f@25 , ground benign 1,000,000 --- --- hours input fuse 5v input models 12v input models 24v input models 48v input models 1500ma slow-blow type 700ma slow-blow type 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 2.7 to 15 vdc standby input current --- 0.1 0.2 ma control input current ( on ) vin = 0v --- --- -0.4 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 derating 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 t otal power in total power international, inc toll free: 877-646-0900 www.total-power.com total power international, inc.
m cw1000 series dc/dc converter 2w , sip-package power derating curve ~ 0 20 40 60 80 100 -40 0 20 60 100 110 80 40 100lfm 200lfm 400lfm natural convection 20lfm notes 1 specifications typical at ta=+25 , resistive load, nominal input voltage and rated 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 0-20 mhz. 4 these power converters require a minimum output loading to maintain specified regulation, operation under no-load conditions will not damage these 5 all dc/dc converters should be externally fused at the front end for protection. 6 other input and output voltage may be available, please contact factory. 7 that natural convection is about 20lfm but is not equal to still air (0 lfm). 8 specifications are subject to change without notice. package specifications mechanical dimensions pin connections pin function 1 -vin 2 +vin 3 remote on/off 5 nc 6 +vout 7 -vout 8 nc nc: no connection ? all dimensions in mm (inches) ? tolerance: x.x0.5 (x.xx0.02) x.xx0.25 ( x.xxx0.01) ? pins 0.1(0.004) physical characteristics case size : 21.8x9.3x11.2 mm (0.86x0.37x0.44 inches) c ase material : non-conductive black plastic (flammability to ul 94v-0 rated) pin material : alloy 42 weight : 4.8g 2x2.54 [2x0.10] 5.08 [0.20] [3x0.10] 3x2.54 0.5 [0.02] 0.5 [0.02] 11.2 [0.44] 3.2 [0.13] 21.8 [0.86] 20.8 [0.82] 0.50 [0.02] 0.25 [0.01] 2.7 [0.11] 9.3 [0.37] 1 2 3 5 6 7 8 bottom view 2.0 [0.08] t otal power in total power international, inc toll free: 877-646-0900 www.total-power.com total power international, inc.
mcw1000 series dc/dc converter 2w , s ip-package test setup input reflected-ripple current test setup input reflected-ripple current is measured with a inductor lin (4.7h) and cin (220f, esr < 1.0b at 100 khz) to simulate source impedance. capacitor cin, offsets possible battery impedance. current ripple is measured at the input terminals of the 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 0.47f 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 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 during a logic low. 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 high is 2.7v to 15v. a logic low is under 0.6 vdc 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 the switch at on/off terminal= (under 0.6vdc or open circuit) is 0.4ma. maximum capacitive load the mcw1000 series has limitation of maximum connected capacitance at the output. the power module may be operated in current limiting mode during start-up, affecting the ramp-up and the startup time. the maximum capacitance can be found in the data sheet. overcurrent protection to provide protection in a fault (output overload) condition, the unit is equipped with internal current limiting circuitry 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 back into its specified range. input source impedance the power module should be connected to a low ac-impedance input source. highly inductive source impedances can 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 capacitor at the input to ensure startup. capacitor mounted close to the power module helps ensure stability of the unit, it is commended to use a good quality low equivalent series resistance (esr < 1.0b at 100 khz) capacitor of a 8.2f for the 5v input device, a 3.3f for the 12v input devices and a 1.5f 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 3.3f capacitors at the output. +out -out +vin -vin load dc power source + - cout single output dc / dc converter thermal considerations many conditions affect the thermal performance of the power module, such as orientation, airflow over the module and board spacing. 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 determined from measurements obtained 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 total power international, inc.
|
