ma-xd-1w&ma-xd-2w ma-xd-1w&ma-xd-2w ma-xd-1w&ma-xd-2w ma-xd-1w&ma-xd-2w ma-xd-1w&ma-xd-2w ma-xd-1w&ma-xd-2w ma-xd-1w&ma-xd-2w ma-xd-1w&ma-xd-2w s s eries eries http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 1 of 2 order code input output efficiency 1 (%,typ) voltage (vdc) voltage (vdc) current (ma) nominal range max . min . MA0512XD-1W 5 4. 75-5.25 12 42 5 64 ma0515xd-1w 5 4. 75-5.25 15 33 4 65 ma0509xd-2w 5 4. 75-5.25 9 100 10 62 ma0512xd-2w 5 4. 75-5.25 12 83 9 63 ma0515xd-2w 5 4. 75-5.25 15 67 7 64 ma1212xd-1w 12 11. 4-12.6 12 42 5 64 ma1215xd-1w 12 11. 4-12.6 15 33 4 65 ma1209xd-2w 12 11. 4-12.6 9 100 10 63 ma1212xd-2w 12 11. 4-12.6 12 83 9 65 ma1215xd-2w 12 11. 4-12.6 15 67 7 66 ma2412xd-1w 24 22. 8-25.2 12 42 5 64 ma2415xd-1w 24 22. 8-25.2 15 33 4 65 ma2409xd-2w 24 22. 8-25.2 9 100 10 63 ma2412xd-2w 24 22. 8-25.2 12 83 9 66 ma2415xd-2w 24 22. 8-25.2 15 67 7 67 model model model model model model model model selection selection selection selection selection selection selection selection ma ma ma ma ma ma ma ma 05 05 05 05 05 05 05 05 12 12 12 12 - - - - - - - - x x x x x x x x d d d d d d d d - - - - - - - - 2w(83) 2w(83) 2w(83) 2w(83) 2w(83) 2w(83) 2w(83) 2w(83) product series in put v oltage output voltage fixed input dip24 package style rated power(output current) 1w/2w, fixed input , isola ted & regulated dual output dc-dc converter features features features features features features features features low ripple good dynamic feature 1kvdcisolation dip24 package temperature range: -40 ~ +85 ul94-v0 package no heatsink required no external component required internal smd construction rohs compliance applications applications applications applications applications applications applications applications selection selection selection selection selection selection selection selection guide guide guide guide guide guide guide guide the ma_xd-1w & ma_xd-2w series are specially designed for applications where a group of polar power supplies are isolated from the input power supply in a distributed power supply system on a circuit board. these products apply to: 1) where the voltage of the input power supply is fixed (voltage variation ? 5%); 2) where isolation is necessary between input and output (isolation voltage 1000vdc); 3) where the regulation of the output voltage and the output ripple noise are demanded. common common common common common common common common specifications specifications specifications specifications specifications specifications specifications specifications parameter test conditions min typ. max. units line regulation for vin change of 5%(1w&2w) 0.25 % 10% to 100% full load 1 % output voltage accuracy 100% full load 3 % temperature drift 2 100% full load 0.03 % / output ripple* 20mhz bandwidth(1w) 10 20 mvp-p 20mhz bandwidth(2w) 20 40 mvp-p output noise* 20mhz bandwidth(1w&2w) 50 150 mvp-p switching frequency full load, nominal input 75 khz *test ripple and noise by parallel cable met hod.see detailed operation instructions at testing of power converter section, application notes. microdc microdc microdc microdc reserves reserves reserves reserves the the the the copyright copyright copyright copyright isolation isolation isolation isolation isolation isolation isolation isolation specifications specifications specifications specifications specifications specifications specifications specifications parameter test conditions min. typ. max. units storage humidity tested for 1 minute and 1ma max 1000 vdc isolation resistance test at 500vdc 1000 m ? note: 1. all specifications measured at ta=25 , humidity<75%, nominal input voltage and rated output load unless otherwise specified. 2. see below recommended circuits for more details.
ma-xd-1w&ma-xd-2w ma-xd-1w&ma-xd-2w ma-xd-1w&ma-xd-2w ma-xd-1w&ma-xd-2w ma-xd-1w&ma-xd-2w ma-xd-1w&ma-xd-2w ma-xd-1w&ma-xd-2w ma-xd-1w&ma-xd-2w s s eries eries http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 2 of 2 common common common common common common common common specification specification specification specification specification specification specification specification parameter test conditions min. typ. max units storage humidity 95 % operating temperature -40 85 storage temperature -55 125 temp. rise at full load 20 30 lead temperature 1. 5mm from case for 10 seconds 300 short circuit protection* 1 s cooling free air convection case material plastic(ul94-v0) mtbf 3500 k hours weight 11 g *supply voltage must be discontinued at the end of short circuit duration. application application application application application application application application note note note note note note note note requirement requirement requirement requirement on on on on output output output output load load load load to ensure this module can operate efficiently and reliably , during operation, the minimum output load is not not not not less less less less than than than than 10% 10% 10% 10% of of of of the the the the full full full full load load load load , and that this product should never never never never be be be be operated operated operated operated under under under under no no no no load! load! load! load! if the actual output power is very small, please connect a resistor with proper resistance at the output end in parallel to increase the load, or use our company s products with a lower rated output power. recommended recommended recommended recommended circuit circuit circuit circuit if you want to further decrease the input /output ripple, an lc filtering network may be connected to the input and output ends of the dc/ dc converter , see (figure 1). it should also be noted that the inductance and the frequency of the lc filtering network should be staggered with the dc/ dc frequency to avoid mutual interference. however , the capacitance of the out put filter capacitor must be proper .if the capacitance is too big, a startup problem might arise. for every channel of out put , provided the safe and reliable operation is ensured, the greatest capacitance of its filter capacitor sees (table 1). it s not recommended to connect any external capacitor in the application field with less than 0.5 watt output. overload overload overload overload protection protection protection protection under normal operating conditions, the output circuit of these products has no protection against over-current and short-circuits. the simplest method is to connect a self-recovery fuse in series at the input end or add a circuit breaker to the circuit. input input input input over-voltage over-voltage over-voltage over-voltage protection protection protection protection circuit circuit circuit circuit the simplest device for input over-voltage protection is a linear voltage regulator with overheat protection that is connected to the input end in series (figure 2). when when when when the the the the environment environment environment environment temperature temperature temperature temperature is is is is higher higher higher higher than than than than 71 71 71 71 c, c, c, c, the the the the product product product product output output output output power power power power should should should should be be be be less less less less then then then then 60% 60% 60% 60% of of of of the the the the rated rated rated rated power. power. power. power. no no no no parallel parallel parallel parallel connection connection connection connection or or or or plug plug plug plug and and and and play. play. play. play. typical typical typical typical typical typical typical typical characteristics characteristics characteristics characteristics characteristics characteristics characteristics characteristics typical typical typical typical typical typical typical typical characteristics characteristics characteristics characteristics characteristics characteristics characteristics characteristics
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