dual output +vo pfm isolation ref.amp lc filter +vin -vin com. -vo single output pfm isolation ref.amp lc filter +vin -vin -vo +vo block diagram wide range 4:1 en55022 emi i/o isolation 1500 vdc more power high power density low cost $ miw4100-series power modules operate over input voltage ranges of 9-36vdc and 18-75v dc which provide precisely regulated output voltages of 3.3v, 5v, 12v, 15v, {5v, {12v and {15vdc. the -40] to +71] operating temperature range makes it ideal for data communication equipments, mobile battery driven equipments, distributed power systems, telecommunication equipments, mixed analog/digital subsystems, process/machine control equipments, computer peri pheral systems and industrial robot systems. the modules have a maximum power rating of 6w and a typical full-load efficiency of 83%, cont inuous short circ uit, en55022 class a conducted noise compliance mini mize design-in time, cost and eliminate the need for external filtering. y internal smd construction y ul 94v-0 package material y industry standard pinout y temperature performance -40] to +71] y complies with en55022 class a y low cost y 4:1 wide input range y mtbf > 1,000,000 hours y 1500vdc isolation y efficiency up to 83% key features 5-6w, ultra-wide input range dip, si ngle & dual output dc/dc converters miw4100 series
82 152 {20 {200 {15 miw4137 83 151 {25 {250 {12 miw4136 78 134 {50 {500 {5 miw4135 82 152 40 400 15 miw4134 83 151 50 500 12 miw4133 78 134 100 1000 5 miw4132 75 15 10 110 120 1200 3.3 48 ( 18 ~ 75 ) miw4131 82 305 {20 {200 {15 miw4127 83 301 {25 {250 {12 MIW4126 78 267 {50 {500 {5 miw4125 82 305 40 400 15 miw4124 83 301 50 500 12 miw4123 78 267 100 1000 5 miw4122 75 20 20 220 120 1200 3.3 24 ( 9 ~ 36 ) miw4121 % (typ.) ma (typ.) ma (typ.) ma (typ.) ma ma vdc vdc @max. load @no load @max. load min. max. efficiency reflected ripple current input current output current output voltage input voltage model number model selection guide en55022 class a conducted emi free-air convection cooling % 95 --- humidity ] +125 -40 storage temperature ] +95 -40 case operating temperature ] +71 -40 ambient operating temperature unit max. min. conditions parameter environmental specifications exceeding the absolute maximum rati ngs of the unit could cause damage. these are not conti nuous operating ratings. mw 2,500 --- internal power dissipation ] 260 --- lead temperature (1.5mm from case for 10 sec.) vdc 100 -0.7 48vdc input models vdc 50 -0.7 24vdc input models input surge voltage ( 1000 ms ) unit max. min. parameter notes : 1. specifications typical at ta=+25], resistive load, nominal input voltage, 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. 5. operation under no-load conditions will not damage these modules; however, they may not meet all specifications listed. 6. all dc/dc converters s hould be externally fused at the front end for protection. 7. other input and output voltage may be available, please contact factory. 8. specifications subjec t to change without notice. absolute maximum ratings miw4100 series
pi filter input filter mw 3000 --- --- short circuit input power a 1 --- --- all models reverse polarity input current 16 --- --- 48v input models 8.5 --- --- 24v input models under voltage shutdown 18 16 14 48v input models vdc 9 8 7 24v input models start voltage unit max. typ. min. model parameter input specifications k hours --- --- 1000 mil-hdbk-217f @ 25], ground benign mtbf khz --- 450 --- switching frequency pf 550 350 --- 100khz,1v isolation capacitance m[ --- --- 1000 500vdc isolation resistance vdc --- --- 1650 flash tested for 1 second isolation voltage test vdc --- --- 1500 60 seconds isolation voltage unit max. typ. min. conditions parameter general specifications continuous output short circuit %/] {0.02 {0.01 --- temperature coefficient % --- {3 --- transient response deviation us 500 300 --- 25% load step change transient recovery time % 350 250 110 over power protection mv rms 15 --- --- ripple & noise (20mhz) mv p-p 100 --- --- over line, load & temp. ripple & noise (20mhz) mv p-p 80 50 --- ripple & noise (20mhz) % {1.0 {0.5 --- io=10% to 100% load regulation % {0.5 {0.1 --- vin=min. to max. line regulation % {2.0 {0.5 --- dual output, balanced loads output voltage balance % {2.0 {0.5 --- output voltage accuracy unit max. typ. min. conditions parameter output specifications # for each output uf 100 100 100 100 100 470 470 maximum capacitive load unit {15v # {12v # {5v # 15v 12v 5v 3.3v models by vout capacitive load miw4100 series
750ma slow-blow type 1000ma slow-blow type 48v input models 24v input models input fuse selection guide vin ( vdc ) 10us 150 140 130 120 110 100 90 80 70 60 100us 1ms 10ms 100ms 50 40 30 20 10 0 48vdc input models 24vdc input models input voltage transient rating derating curve ?
test configurations input reflected-ripple current test setup input reflected-ripple current is measured with a inductor lin (4.7uh) and cin (220uf, 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 the module, measurement bandwidth is 0-500 khz. peak-to-peak output noise measurement test use a cout 0.47uf 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. design & feature considerations maximum capacitive load the miw4100 series has limitation of maximum connected capacitance at the output. the power module may be oper ated in current limiting mode during start-up, affecti ng the ramp-up and the startup time. the maximum capacitance can be found in the data sheet. overcurrent protection to provide protection in a f ault (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 incepti on, the unit shifts from voltage control to current control. t he unit operates normally once the output current is brought ba ck 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 st ability 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 recommended to use a good quality low equivalent series resistance (esr < 1.0[ at 100 khz) capacitor of a 4.7uf fo r the 24v input devices and a 2.2uf for the 48v devices. 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 3.3uf capacitors at the output. miw4100 series +out -out +vin -vin dc / dc converter load battery + lin + cin to oscilloscope current probe +out -out +vin -vin dual output dc / dc converter resistive load scope copper strip cout com. scope cout +out -out +vin -vin single output dc / dc converter resistive load scope copper strip cout + +out -out +vin -vin dc / dc converter load dc power source + - cin +out -out +vin -vin load dc power source + - cout com. dual output dc / dc converter +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 orientat ion, airflow over the module and board spacing. to avoid exceeding the maximum temperature rating of t he components inside the power module, the case temperatur e must be kept below 90c. the derating curves are det ermined from measurements obtained in an exper imental apparatus. miw4100 series dut position of air velocity probe and thermocouple 50mm / 2in air flow 15mm / 0.6in
the miw4100 converter is encapsul ated in a low thermal resistance molding com pound that has excellent resistance/electrical characteristics over a wide temperatur e range or in high humidity environments. the encapsulant and unit case are both rated to ul 94v-0 flammability specifications. leads are tin plated for improved solderability. nc: no connection +vin +vin 23 ul94v-0 : flammability +vin +vin 22 common -vout 16 17.3g : weight +vout +vout 14 -vout nc 11 metal with non-conductive baseplate : case material common no pin 9 -vin -vin 3 1.25*0.80*0.40 inches -vin -vin 2 31.8*20.3*10.2 mm : case size dual output single output pin physical characteristics pin connections {0.002 {0.05 pin x.xxx{0.005 x.xx{0.13 x.xx{0.01 x.x{0.25 inches millimeters tolerance dual output single output 31.8 [1.25] 10.2 [0.40] 20.3 [0.80] bottom 4.1 [0.16] 4.5 [0.18] 2 side 3911 16 14 23 22 0.50 [0.020] 2.54 [0.100] 15.22 [0.600] 2.5 [0.10] connecting pin patterns top view ( 2.54 mm / 0.1 inch grids ) mechanical dimensions miw4100 series
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