key features: 12w output power ul approved (file e245422) 4:1 input voltage range 1,500 vdc isolation compact 1 x 2 inch case single & dual outputs optional remote on/off industry standard pin-out 232 tosca drive stoughton, ma 02072 usa t: (781) 344-8226 f: (781) 344-8481 e: sales@micropowerdirect.com w: www.micropowerdirect.com ultra-wide input 12w single & dual output dc/dc con verters series input parameterconditionsmin.typ.max.units input start voltage 24 vdc input8.08.59.0 vdc 48 vdc input14.016.018.0 input filter (pi) filter (complies with en55022 class a ) reverse polarity input current1.0a short circuit input power3,500mw output parameterconditionsmin.typ.max.units output voltage accuracy 0.5 1.0% output voltage balancedual output , balanced loads 0.5 1.0% line regulationvin = min to max 0.1 0.5% load regulationiout = 10% to 100% 0.2 0.5% ripple & noise (20 mhz) (note 1)5075mv p - p ripple & noise (20 mhz)over line, load & temp.100mv p - p ripple & noise (20 mhz) 15mv rms output power protection120% transient recovery time (note 2) 25% load step change 150250 sec transient response deviation 1.5 2.5% temperature coef ? cient 0.01 0.02%/ c output short circuitcontinuous general parameterconditionsmin.typ.max.units isolation voltage60 seconds1,500vdc isolation test voltageflash tested for 1 sec1,650vdc isolation resistance500 vdc1,000m isolation capacitance100 khz, 1v500600pf switching frequency350400450khz environmental parameterconditionsmin.typ.max.units operating temperature rangeambient-40+25+71 c operating temperature range case-40+90 c storage temperature range-40+125 c coolingfree air convection (see curves on page 2) humidityrh, non-condensing95% rfisix-side shielded metal case physical case size 2.0 x 1.0 x 0.40 inches (50.8 x 25.4 x 10.2 mm) case materialmetal with non-conductive base (ul94-v0) weight 1.13 oz (32g) reliability speci ? cations parameterconditionsmin.typ.max.units mtbfmil hdbk 217f, 25 c, gnd benign700khours safety standardsul 1950, en 60950, iec 60950 safety approvals ul, cul; file no. e245422 absolute maximum ratings parameterconditionsmin.typ.max.units input voltage surge (1 sec) 24 vdc input-0.742.0 vdc 48 vdc input-0.784.0 lead temperature1.5 mm from case for 10 sec260.0 c internal power dissipationall models5,000mw caution: exceeding absolute maximum ratings may damage the module. these are not continuous operating ratings. electrical speci ? cations speci ? cations typical @ +25 c, nominal input voltage & rated output current, unless otherwise noted. speci ? cations subject to change without notice.
model selection guide mechanical dimensions www.micropowerdirect.com 232 tosca drive stoughton, ma 02072 tel: (781) 344-8226 fax: (781) 344-8481 e-mail: sales@micropowerdirect.com mechanical notes: ? all dimensions are typical in inch es (mm) ? tolerance x.xx = 0.01 ( 0.25) ? leads are gold plated for improved solderability. model number inputoutput over voltage protection (vdc) ef ? ciency (%, typ) fuse rating slow-blow (ma) voltage (vdc)current (ma) voltage (vdc) current (ma, max) current (ma, min) nominalrange full- load no- load b1201ru249.0 - 36.0423103.32,400240.03.9781,500 b1202ru249.0 - 36.0508105.02,000200.06.8821,500 b1203ru249.0 - 36.05951012.01,000100.015.0841,500 b1204ru249.0 - 36.05951015.080080.018.0841,500 b1205ru249.0 - 36.050810 5.0 1000 100.0 6.8821,500 b1206ru249.0 - 36.059510 12.0 500 50.0 15.0841,500 b1207ru249.0 - 36.059510 15.0 400 40.0 18.0841,500 b1211ru4818.0 - 75.021253.32,400240.03.978750 b1212ru4818.0 - 75.025455.02,000200.06.882750 b1213ru4818.0 - 75.0298512.01,000100.015.084750 b1214ru4818.0 - 75.0298515.080080.018.084750 B1215RU4818.0 - 75.02545 5.0 1000 100.0 6.882750 b1216ru4818.0 - 75.02985 12.0 500 50.0 15.084750 b1217ru4818.0 - 75.02985 15.0 400 40.0 18.084750 pinsingledual 1+vin+vin 2-vin-vin 3+vout+vout 4no pincommon 5-vout-vout 6remote on/offremote on/off pin con nections remote on/off (optional, see below) parameterminmaxunits supply on2.55.5 or openvdc supply off-0.70.8vdc standby input current10ma control input current (on)50.0 a control input current (off)-100.0ma control commonreferenced to neg. input (pin 2) for remote on/off option, add suf ? x r to model number (i.e. b1205ru-r) notes: 1. when measuring output ripple, it is recommended that an external 0.47 f ceramic capacitor be placed from the +vout pin to the -vout pin for single output units and from each output to common for dual output units. for noise sensitive applications, the use of 3.9 f capacitors will reduce the output ripple. 2. transient recovery is measured to within a 1% error band for a load step change of 75% to 100%. 3. operation at no-load will not damage these units. however, they may not meet all speci ? cations. 5. dual output units may be connected to provide a 10 vdc, 24 vdc or 30 vdc output. to do this, connect the load across the positive (+vout) and negative (-vout) outputs and ? oat the output common. 6. the converter should be connected to a low ac-impedance source. an input source with a highly inductive impedance may affect the stability of the converter. in applications where the converter output loading is high and input power is supplied over long lines, it may be necessary to use a capacitor on the input to insure start-up. in this case, it is recommended that a low equivalent series resis- tance (esr <1.0 at 100 khz) capacitor be mounted close to the converter. a 10.0 f is recommended for 24v input models; a 4.7 f for 48v units. 7. it is recommended that a fuse be used on the input of a power supply for protection. see the table above for the correct rating. remote on/off notes: 1. maximum sink current at the on/off pin (pin 6) during a logic low is 100 a. 2. maximum allowable leakage current of a switch connected to the on/off terminal (pin 6) at logic high (2.5v to 100v) is 50 a. single output ( f max) 470 dual output ( f max) 150 capacitive load derating curve
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