2a 2a -x -x sr sr s s eries eries http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 1 of 2 selection selection guide guide order code input output efficiency (%,typ) switching frequency (khz,typ) voltage (vdc) voltage (vdc) current nomi nal range max min 2a 050 3x s r 5 4.75-5.25 3.3 150 15 69 100 2a 0505 x s r 5 4.75-5.25 5 200 20 70 55 2a 0509 x s r 5 4.75-5.25 9 100 10 62 67 2a 0512 x s r 5 4.75-5.25 12 83 9 64 67 2a 0515 x s r 5 4.75-5.25 15 67 7 65 200 2a 1205 x s r 12 11.4-12.6 5 150 15 70 83 2a 1209 x s r 12 11.4-12.6 9 100 10 63 91 2a 1212 x s r 12 11.4-12.6 12 83 9 65 91 2a 1215 x s r 12 11.4-12.6 15 67 7 68 200 2a 2405 x s r 24 22.8-25.2 5 150 15 70 83 2a 2409 x s r 24 22.8-25.2 9 100 10 63 100 2a 2412 x s r 24 22.8-25.2 12 83 9 67 200 2a 2415 x s r 24 22.8-25.2 15 67 7 69 91 model model selection selection 2a 2a 05 05 05 05 x x s s r r product series input voltage output voltage fixed input s ip package regulated output microdc r eserves the copyright fixed input,isolated®ulated dual output dc/dc converters features features rohs compliant efficiency up to 86% sip package wide temperature performance at full 2 watt load,-40 c to 85 c ul 94v-0 package material no heatsink required small footprint industry standard pinout power sharing on output 1kvdc isolation 3.3v,5v,9v,12v and 15v output internal smd construction no external components required mttf up to 1.5 million hours applications applications the 2a _ x s r 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. output output specifications specifications paramete r test conditions min typ. max. units output power 0.2 2 w line regulation for vin change of 5% 0.25 % load regulation 10% to 100% full load 1 % output voltage accuracy 100% full load 3 % temperature drift 100% full load 0.03 %/ c output ripple* 20mhz bandwidth 20 30 mv p-p output noise* 20mhz bandwidth 75 150 mv p-p * test ripple and noise by "parallel cable" method. see detailed operation instructions at testing of power converter section, application notes. isolation isolation specifications specifications paramete r test conditions min. typ. max. units isolation test voltage flash tested for 1 minute and 1ma max 1000 vdc isolation resistance test at viso=500vdc 1000 m
2a 2a -x -x sr sr s s eries eries http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 2 of 2 temperature temperature characteristics characteristics parameter conditions min. typ. max. units storage humidity range 95 % operating temperature -40 8 0 c storage temperature -55 125 c lead temperature 1.5mm from case for 10 seconds 30 c temp.rise at full load 20 30 0 c cooling free air convection case material plastic(ul94-v0) short circuit protection 05v output continuous others* 1 s mtbf 3500 k hours weight 5.2 g *supply voltage must be discontinued at the end of short circuit duration. recommended circuit to get an extreme low ripple,an "lc" filtering network may be connected to the input and output ends of the dc/dc converter, which may produce a more significant filtering effect.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 (see figure 1). in some circuits which are sensitive to noise and ripple, a filtering capacitor may be added to the dc/dc output end and input end to reduce the noise and ripple. however, the capacitance of the output filter capacitor must be proper. if the capacitance is too big, a startup problem might arise. for every channel of output, provided the safe and reliable operation is ensured, the greatest capacitance of its filter capacitor sees the external capacitor table (see table 1). external capacitor table (table 1) vin vin cin cin vout vout cout cout (vdc) ( f) (vdc) ( f) 5 4.7 5 4.7 12 2.2 9 2.2 24 0.47 12 1 - - 15 0.47 it's not recommend to connect any external capacitor in the application field with less than 0.5 watt output. input over-voltage protection 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 the environment temperature is higher than 71 , the product output power should be less then 60% of the rated power. no parallel connection or plug and play . use dual output simultaneously, forbid opening output pin (0v) to use as single output. typical typical characteristics characteristics temperature derating graph outline outline dimensions dimensions & & pin pin connections connections size graph note: unit:mm(inch) pin section:0.50*0.3mm(0.020*0.012inch) pin section tolerances: 0.10mm( 0.004inch) general tolerances : 0.25mm( 0.010inch) recommended footprint top view,grid:2.54mm(0.1inch) diameter:1.00mm(0.039inch) all specifications typical at ta=25 c, nominal input voltage and rated output current unless otherwise specified.another 24v products, please inquire our technical department! requirement on output load to ensure this module can operate efficiently and reliably, during operation, the minimum output load is not less than 10% of the full load, and that this product should never be operated under no 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 (ia_ x s-1w series). microdc professional power module,inc. tel:0086-20-86000646 e-mail:tech@microdc.cn website:http://www.microdc.cn rohs compliant information this series is compatible with rohs soldering systems with a peak wave solder temperature of 300 c for 10 seconds. the pin termination finish on the sip package type is tin plate, hot dipped over matte tin with nickel preplate. the dip types are matte tin over nickel preplate. both types in this series are backward compatible with sn/pb soldering systems. reach compliant information this series has proven that this product does not contain harmful chemicals, it also has harmful chemical substances through the registration, inspection and approval. footprint footprint details details pin function 1 vin 2 gnd 7 +v0 9 -v0 10 0v
|
