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 minmax's miw4000-series pow er modules are low-profile dc-dc converters that operate ov er input voltage ranges of 9-36vdc and 18-75vdc and provide precisel y regulated output voltages of 3.3v, 5v, 12v, 15v, {5v, {12v and {15v. the -25] 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 per ipheral systems and industrial robot systems. the modules have a maximum power rating of 6w and a typical full-load efficiency of 86%, conti nuous short circuit, en55022 level a conducted noise compliance minimi ze design-in time, cost and eliminate the need for external components. y mtbf > 1,000,000 hours y emi complies with en55022 class a y short circuit protection y smt technology y industry standard pinout y i/o isolation 1500vdc y 4:1 input range y high power density y high efficiency up to 86% key features single and dual outputs 5 ? 6 watts 4 : 1 wide input range dc/dc converters miw4000 series
85 147 {20 {200 {15 miw4037 86 145 {25 {250 {12 miw4036 81 123 {50 {500 {5 miw4035 85 147 40 400 15 miw4034 86 145 50 500 12 miw4033 81 129 100 1000 5 miw4032 78 10 10 106 120 1200 3.3 48 ( 18 ~ 75 ) miw4031 85 294 {20 {200 {15 MIW4027 86 291 {25 {250 {12 miw4026 81 257 {50 {500 {5 miw4025 85 294 40 400 15 miw4024 86 291 50 500 12 miw4023 81 257 100 1000 5 miw4022 78 10 20 212 120 1200 3.3 24 ( 9 ~ 36 ) miw4021 % (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 ] +90 -40 case operating temperature ] +71 -25 ambient operating temperature unit max. min. conditions parameter environmental specifications exceeding these values can damage t he module. these are not continuous 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 note : 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 devices; however they may not meet all listed specifications. 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 miw4000 series
pi filter input filter mw 2500 --- --- short circuit input power a 0.5 --- --- all models reverse polarity input current 16 --- --- 48v input models 8.5 --- --- 24v input models under voltage shortdown 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 --- 340 --- switching frequency pf 550 350 --- 100khz,1v isolation capacitance m[ --- --- 1000 500vdc isolation resistance vdc --- --- 1650 flash tested for 1 second isolation test voltage 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 500 250 --- 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 75 50 --- ripple & noise (20mhz) % {1.0 {0.3 --- io=10% to 100% load regulation % {0.3 {0.1 --- vin=min. to max. line regulation % {2.0 {0.5 --- dual output balance load output voltage balance % {1.0 {0.5 --- output voltage accuracy unit max. typ. min. conditions parameter output specifications note: # for each output . uf 680 680 680 3000 3000 3000 3000 maximum capacitive load unit { 15v # { 12v # { 5v # 15v 12v 5v 3.3v models by vout capacitive load miw4000 series
750ma slow-blow type 1500ma 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 miw4000 series
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 miw4000 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. for optimum performance we recommend 680uf maximum capacitive load for dual outputs and 3000 u f capacitive load for single outputs. the maximum capacitance can be found in the data . 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. miw4000 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. miw4000 series dut position of air velocity probe and thermocouple 50mm / 2in air flow 15mm / 0.6in
units are encapsulated in a low thermal resistance molding co mpound which has excellent chem ical resistance and electrical properties in high humidity environment and over a wide operating temperature range. the encapsulant and outer shell of the unit have ul94v-0 ratings. the leads are golden plated for better soldering. 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*0.8*0.4 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 .xxx{0.01 .xx{0.25 .xx{0.01 .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 data miw4000 series
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